ORCID Profile
0000-0002-3190-5094
Current Organisation
Curtin University
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Environmental Science and Management | Environmental Impact Assessment | Geochemistry | Environmental Management | Marine And Estuarine Ecology (Incl. Marine Ichthyology) | Environmental Monitoring | Exploration Geochemistry | Evaluation Of Management Strategies | Environmental Management And Rehabilitation | Organic Geochemistry
ANZSRC Socio-Economic Objective (SEO)
Industrial chemicals and related products | Oil and Gas Extraction | Physical and chemical conditions | Expanding Knowledge in the Environmental Sciences | Integrated (ecosystem) assessment and management | Integrated (ecosystem) assessment and management | Lubricants | Ecosystem Assessment and Management of Marine Environments |
Related Links
Publications
EROD activity, serum SDH and PAH biliary metabolites in sand flathead (Platycephalus bassensis) collected in Port Phillip Bay, Australia
Publisher: Elsevier BV
Date: 03-2002
DOI: 10.1016/S0025-326X(01)00245-4
Abstract: In order to evaluate the health status of fish inhabiting Port Phillip Bay, Australia, southern sand flathead (Platycephalus hassensis, N = 133) were collected at six stations throughout the Bay. Fish had a similar serum sorbitol dehydrogenase (SDH) activity level (p = 0.12), indicating that they were not experiencing hepatocellular injuries. Ethoxyresorufin-O-deethylase (EROD) activity was generally lower in the non-urbanized and non-industrialized southern part of the Bay. The highest EROD activity was observed in Hobson Bay, the closest station from Melbourne city. Naphthalene-type biliary metabolites were also highest in Hobson Bay with intermediate levels found in Corio Bay where refineries are present. An opposite trend was observed with the pyrene-type bile metabolites, the highest levels being observed in Corio Bay while intermediate levels were found in Hobson Bay. The ratio of naphthalene-type to benzo(a)pyrene (B(a)P)-type metabolites indicate that relatively to other sites s led in Port Phillip Bay, Corio Bay is subjected to enriched petroleum hydrocarbons of pyrolytic origin. Temporal trends indicate that the availability of xenobiotics to fish remained unchanged over the 1990s.
Congener-specific analysis of the accumulation of polychlorinated biphenyls (PCBs) by aquatic organisms in the maximum turbidity zone of the St. Lawrence estuary, Québec, Canada
Publisher: Elsevier BV
Date: 11-1990
DOI: 10.1016/0048-9697(90)90272-V
Abstract: The polychlorinated biphenyl (PCB) contamination of the biota of the St. Lawrence estuary maximum turbidity zone (MTZ) was investigated. The species analyzed consist of zooplankton (mostly Neomysis americana), larval smelt (Osmerus mordax), juvenile smelt, juvenile tomcod (Microgadus tomcod) and adult smelt, tomcod and capelin (Mallotus villosus). A significant increase in total PCB contamination from zooplankton to all fish developmental stages indicates that the St. Lawrence MTZ is a site of significant PCB contamination. The total PCB contamination of adult smelt and tomcod s led in the St. Lawrence MTZ was greater than the limit of 0.1 ppm set by the International Joint Commission for the protection of predators. For zooplankton, tomcod and capelin, significant correlations were found between lipid content and PCB contamination. The congener-specific analyses showed that the bioconcentration factor of the in idual congeners varied with the species involved and with the molecular structure of the congener. It was found that the chlorine atoms in positions 2, 4 and 5 on at least one phenyl ring of the PCB molecule was a dominant factor causing accumulation of PCBs in aquatic organisms. The pattern of PCB congeners found in beluga (Delphinapterus leucas) whale tissues is similar to the PCB pattern found in the St. Lawrence estuary MTZ biota.
Assessment of wastewater and recycled water quality: A comparison of lines of evidence from invitro, invivo and chemical analyses
Publisher: Elsevier BV
Date: 03-2014
DOI: 10.1016/J.WATRES.2013.10.056
Abstract: We investigated water quality at an advanced water reclamation plant and three conventional wastewater treatment plants using an "ecotoxicity toolbox" consisting of three complementary analyses (chemical analysis, in vitro bioanalysis and in situ biological monitoring), with a focus on endocrine disruption. The in vitro bioassays were chosen to provide an appropriately wide coverage of biological effects relevant to managed aquifer recharge and environmental discharge of treated wastewater, and included bioassays for bacterial toxicity (Microtox), genotoxicity (umuC), photosynthesis inhibition (Max-I-PAM) and endocrine effects (E-SCREEN and AR-CALUX). Chemical analysis of hormones and pesticides using LCMSMS was performed in parallel to correlate standard analytical methods with the in vitro assessment. For two plants with surface water discharge into open drains, further field work was carried out to examine in situ effects using mosquitofish (Gambusia holbrooki) as a bioindicator species for possible endocrine effects. The results show considerable cytotoxicity, phytotoxicity, estrogenicity and androgenicity in raw sewage, all of which were significantly reduced by conventional wastewater treatment. No biological response was detected to RO water, suggesting that reverse osmosis is a significant barrier to biologically active compounds. Chemical analysis and in situ monitoring revealed trends consistent with the in vitro results: chemical analysis confirmed the removal trends observed by the bioanalytical tools, and in situ s ling did not reveal any evidence of endocrine disruption specifically due to discharge of treated wastewater (although other sources may be present). Biomarkers of exposure (in vitro) and effect (in vivo or in situ) are complementary and together provide information with a high level of ecological relevance. This study illustrates the utility of combining multiple lines of evidence in the assessment of water quality.
Health Status of Sand Flathead (Platycephalus bassensis), Inhabiting an Industrialised and Urbanised Embayment, Port Phillip Bay, Victoria as Measured by Biomarkers of Exposure and Effects
Publisher: Public Library of Science (PLoS)
Date: 06-10-2016
Metal(loid) pollution, not urbanisation nor parasites predicts low body condition in a wetland bioindicator snake
Publisher: Elsevier BV
Date: 02-2022
DOI: 10.1016/J.ENVPOL.2021.118674
Abstract: Urban ecosystems and remnant habitat 'islands' therein, provide important strongholds for many wildlife species including those of conservation significance. However, the persistence of these habitats can be undermined if their structure and function are too severely disrupted. Urban wetlands, specifically, are usually degraded by a monoculture of invasive vegetation, disrupted hydrology, and chronic-contamination from a suite of anthropogenic pollutants. Top predators-as bioindicators-can be used to assess and monitor the health of these ecosystems. We measured eight health parameters (e.g., parasites, wounds and scars, tail loss and body condition) in a wetland top predator, the western tiger snake, Notechis scutatus occidentalis. For three years, snakes were s led across four wetlands along an urban gradient. For each site, we used GIS software to measure the area of different landscapes and calculate an urbanisation-landscape score. Previously published research on snake contamination informed our calculations of a metal-pollution index for each site. We used generalised linear mixed models to assess the relationship between all health parameters and site variables. We found the metal-pollution index to have the most significant association with poor body condition. Although parasitism, tail loss and wounds differed among sites, none of these parameters influenced body condition. Additionally, the suite of health parameters suggested differing health status among sites however, our measure of contemporary landscape urbanisation was never a significant predictor variable. Our results suggest that the health of wetland predators surrounding a rapidly growing city may be offset by higher levels of environmental pollution.
Zinc incorporation in the otoliths of juvenile pink snapper (Pagrus auratus Forster): The influence of dietary versus waterborne sources
Publisher: Elsevier BV
Date: 05-2008
Investigating the role of urbanisation, wetlands and climatic conditions in nematode parasitism in a large Australian elapid snake
Publisher: Elsevier BV
Date: 04-2020
Discriminating source of oil contamination in teleost fish, Lates calcarifer, using multivariate analysis of a suite of physiological and behavioral biomarkers
Publisher: Elsevier BV
Date: 11-2021
Field studies using fish biomarkers - How many fish are enough?
Publisher: Elsevier BV
Date: 12-2012
DOI: 10.1016/J.MARPOLBUL.2012.08.016
Abstract: Significant efforts are invested in field studies using fish, and it is important to optimize the number of organisms collected to evaluate the possible impacts of contamination. This paper provides ecotoxicologists with the approximate numbers of fish needed to identify statistically significant differences among s les using physiological indices and biochemical markers of fish health. The numbers of fish to collect are reported for ethoxyresorufin-o-deethylase (EROD) ethoxycoumarin-o-deethylase (ECOD), serum sorbitol dehydrogenase (sSDH), stress proteins, gonadosomatic index, liver somatic index, condition factor, and biliary metabolites of polycyclic aromatic hydrocarbons. The number of fish to collect was as few as four for ECOD activity (with a power of 80%), but as high as 106 for CF (with a power of 95%). Achieving statistical significance between sites does not help in the interpretation of the biological significance of a parameter, but well-planned field s lings will maximize the chances of correctly identifying areas of concern.
The value of stress protein 70 as an environmental biomarker of fish health under field conditions
Publisher: Wiley
Date: 06-2009
DOI: 10.1002/TOX.20432
Abstract: Hsp70 protein in three tissue types (gill, liver, and muscle) from black bream (Acanthopagrus butcheri) collected in a highly variable estuarine environment was investigated to determine which tissue provides better intersite discrimination. The usefulness of hsp70 expression to identify anthropogenic stress under field conditions was evaluated. Intersite differences were detected in hsp70 levels in gill and white muscle of black bream while liver showed no spatial difference. There was high interfish variability in hsp70 levels in each tissue group. A post hoc power analysis of the datasets for each tissue found that in black bream, white muscle provided the best discriminatory power to elucidate spatial variability. Only 11 fish per site are required to identify significant intersite differences in white muscle whereas for gill and liver tissues 14 and 21 fish per site, respectively, would be required. Because of high intertissue and interin idual variability, field measurement of hsp70 should be complemented by evidence of changes in other biomarkers of fish health.
PD-1 blockade restores helper activity of tumor-infiltrating, exhausted PD-1hiCD39+ CD4 T cells
Publisher: American Society for Clinical Investigation
Date: 25-01-2021
Bioindicator species for EROD activity measurements: A review with Australian fish as a case study
Publisher: Elsevier BV
Date: 02-2017
Toxicity assessment of individual ingredients of synthetic-based drilling muds (SBMs)
Publisher: Springer Science and Business Media LLC
Date: 20-09-2012
DOI: 10.1007/S10661-011-2342-X
Abstract: Synthetic-based drilling muds (SBMs) offer excellent technical characteristics while providing improved environmental performance over other drilling muds. The low acute toxicity and high biodegradability of SBMs suggest their discharge at sea would cause minimal impacts on marine ecosystems, however, chronic toxicity testing has demonstrated adverse effects of SBMs on fish health. Sparse environmental monitoring data indicate effects of SBMs on bottom invertebrates. However, no environmental toxicity assessment has been performed on fish attracted to the cutting piles. SBM formulations are mostly composed of synthetic base oils, weighting agents, and drilling additives such as emulsifiers, fluid loss agents, wetting agents, and brine. The present study aimed to evaluate the impact of exposure to in idual ingredients of SBMs on fish health. To do so, a suite of biomarkers [ethoxyresorufin-O-deethylase (EROD) activity, biliary metabolites, sorbitol dehydrogenase (SDH) activity, DNA damage, and heat shock protein] have been measured in pink snapper (Pagrus auratus) exposed for 21 days to in idual ingredients of SBMs. The primary emulsifier (Emul S50) followed by the fluid loss agent (LSL 50) caused the strongest biochemical responses in fish. The synthetic base oil (Rheosyn) caused the least response in juvenile fish. The results suggest that the impact of Syndrill 80:20 on fish health might be reduced by replacement of the primary emulsifier Emul S50 with an alternative ingredient of less toxicity to aquatic biota. The research provides a basis for improving the environmental performance of SBMs by reducing the environmental risk of their discharge and providing environmental managers with information regarding the potential toxicity of in idual ingredients.
The Broad-Scale Analysis of Metals, Trace Elements, Organochlorine Pesticides and Polycyclic Aromatic Hydrocarbons in Wetlands Along an Urban Gradient, and the Use of a High Trophic Snake as a Bioindicator
Publisher: Springer Science and Business Media LLC
Date: 02-03-2020
Identifying the Cause of toxicity of a saline mine water
Publisher: Public Library of Science (PLoS)
Date: 02-09-2014
Diuron increases spinal deformity in early-life-stage pink snapper Pagrus auratus
Publisher: Elsevier BV
Date: 07-2009
Two independent approaches to assessing the constancy of evaporative water loss for birds under varying evaporative conditions
Publisher: Elsevier BV
Date: 11-2021
DOI: 10.1016/J.CBPA.2021.111041
Abstract: We examine here the effects on evaporative water loss, at and below thermoneutrality, of perturbing the evaporative environment for the red-capped parrot (Purpureicephalus spurius) by modifying the ambient relative humidity or the diffusive properties of the ambient environment using a helium‑oxygen mix (helox). We found that evaporative water loss did not change with relative humidity at an ambient temperature of 30 °C, but there was a negative relationship for evaporative water loss with relative humidity at 20 and 25 °C. The evaporative water loss per water vapour pressure deficit between the bird and its ambient environment was not constant with relative humidity, as would be expected for a physical effect (slope = 0) rather there was a significant positive relationship with relative humidity at ambient temperatures of 25 and 30 °C. Consequently, we conclude that the red-capped parrot can physiologically control its EWL over a range of relative humidities. For the first time for a bird species, we also confirmed EWL control using a second methodology to perturb the evaporative environment, and demonstrated that a more diffusive helox atmosphere has no effect on evaporative water loss of live birds, but evaporative water loss was higher for dead birds in helox compared to air. Our results for evaporative water loss and other physiological variables for red-capped parrots are consistent with the hypothesis that evaporative water loss is under physiological control.
MFO induction of three Australian fish species
Publisher: Wiley
Date: 2000
DOI: 10.1002/(SICI)1522-7278(2000)15:1<1::AID-TOX1>3.0.CO;2-M
Endocrine disruption in male mosquitofish (Gambusia holbrooki) inhabiting wetlands in Western Australia
Publisher: Springer Science and Business Media LLC
Date: 02-11-2006
DOI: 10.1007/S10646-006-0104-2
Abstract: The use of gonopodial indices as potential indicators of endocrine disruption in the mosquitofish Gambusia holbrooki inhabiting south west Australian wetlands was investigated. A minimum of 50 mature males was collected from each of five water-bodies in the Swan Coastal Plain, Western Australia, in order to measure morphological features related to reproduction. A set of morphological measurements were used to derive the following indices: gonopodium length/standard body length, pre-anal length/standard body length, the index of elongation and the percentage of male fish with hooks on the distal end of the gonopodium. Indices of male mosquitofish collected from Jack Finney Lake, located in the Curtin University c us, suggest the presence of endocrine disrupting chemicals (EDCs) in this water-body, while those from Lake Kulinup suggest this is a site of concern. Indices of male fish from the Wagerup wetland, Lake Monger and Loch McNess indicate that fish inhabiting these wetlands are not affected by EDCs. This preliminary study suggests that EDCs may be present in a number of wetlands of the Swan Coastal Plain. Further study using EDC specific markers such as vitellogenin induction in male mosquitofish is required to confirm whether EDCs are present in these water-bodies.
Secondary and tertiary stress responses to BKME exposure in the St. Maurice River fish populations
Publisher: Springer Science and Business Media LLC
Date: 2000
White sucker (Catostomus commersoni) growth and sexual maturation in pulp mill‐contaminated and reference rivers
Publisher: Wiley
Date: 02-1995
Trace metal incorporation in otoliths of black bream (Acanthopagrus butcheri Munro), an indicator of exposure to metal contamination
Publisher: Springer Science and Business Media LLC
Date: 25-04-2008
Intersex in Roe's abalone (Haliotis roei) in Western Australia
Publisher: Elsevier BV
Date: 12-2004
Interseasonal variability in biomarkers of exposure in fish inhabiting a southwestern Australian Estuary
Publisher: Wiley
Date: 2005
DOI: 10.1002/TOX.20141
Abstract: The Swan-Canning Estuary, in southwestern Australia, undergoes distinct seasonal changes, with freshwater discharge predominant in the winter (wet) season and low flow with high salinity predominant in the dry summer season. To investigate seasonal variability in biomarkers of exposure in fish, black bream (Acanthopagrus butcheri) were collected from seven sites in the Swan-Canning Estuary in winter 2000 and in summer 2001. No interseasonal or intersite differences in serum sorbitol dehydrogenase concentration were found, indicating the measured mixed-function oxygenase (MFO) enzymes were not influenced by liver damage. The ethoxyresorufin-O-deethlyase (EROD) activity of the postspawning females was higher in summer than in winter but was significantly lower than that in males in both seasons, suggesting estradiol suppression in females. Sexual differences in ethoxycoumarin-O-deethylase (ECOD) activity were not evident in either season. Both EROD and ECOD activities and polycyclic aromatic hydrocarbons (PAH) biliary metabolites had significantly different patterns of induction between seasons. The ratio of naphthalene-type to benzo(a)pyrene-type biliary metabolites was significantly higher in summer, indicating the sources of petroleum hydrocarbons were petrogenic compared to in winter, when the source was a mixture of pyrogenic and petrogenic PAHs. There was no upstream or downstream gradient of response in any biomarker in either season, demonstrating that there were multiple sources of contaminant input into the estuary. Although winter biomarker levels were triggered by the discharge runoff from major roads and drains, summer biomarker levels appear to have been related to recreational boating use on the estuary.
Metabolic responses of fish following exposure to two different oil spill remediation techniques
Publisher: Elsevier BV
Date: 03-2001
Zeolite mediated processing of nitrogenous waste in the rearing environment influences gut and sediment microbial community in freshwater crayfish (Cherax cainii) culture
Publisher: Elsevier BV
Date: 07-2022
DOI: 10.1016/J.CHEMOSPHERE.2022.134276
Abstract: Zeolite is known to uptake toxic metals and filter nitrogenous waste from aquaculture effluents. The present study aimed to investigate the impacts of zeolite in three different applications namely, dietary zeolite (DZ), suspended zeolite (SZ) in the water column, and a combination of both (DZSZ) relative to unexposed freshwater crayfish, marron (control). At the end of the 56-days trial, the impact was assessed in terms of characterization of microbial communities in the culture environment and the intestine of marron. Alongside the microbial communities, the innate immune response of marron was also evaluated. The 16S rRNA data showed that marrons exposed to the suspended zeolite had a significant increase of bacterial ersity in the gut, including the restoration of marron core operational taxonomic units (OTUs), relative to other forms of exposures (DZ, DZSZ) and the control. Suspended zeolite alone also increased the number of unshared OTUs and genera, and improved predicted metabolic functions for the biosynthesis and digestion of proteins, amino acids, fatty acids, and hormones. In the tank sediment, the shift of microbial communities was connected more strongly with the time of experiment than the type of zeolite exposure. In the second case, only control marron had a different microbial ordination in terms of rare taxa present in the community. Nevertheless, the modulation in the gut environment was found more prominent in DZ, relative to modulation in the tank sediments. The taxa-environment correlation identified Rhodoferax as the most potential bacteria in removing nitrogenous waste from the rearing environment. Further analysis showed that SZ resulted in the upregulation of genes associated with the innate immune response of marron. Overall results suggest that SZ can be used to enrich microbial communities in the gut and tank sediments and better immune performance of marron.
Biomarker responses and PAH ratios in fish inhabiting an estuarine urban waterway
Publisher: Wiley
Date: 14-07-2017
DOI: 10.1002/TOX.22447
Abstract: Many cities worldwide are established adjacent to estuaries and their catchments resulting in estuarine contamination due to intense anthropogenic activities. The aim of this study was to evaluate if fish living in an estuarine urban waterway were affected by contamination, via the measurement of a suite of biomarkers of fish health. Black bream (Acanthopagrus butcheri) were s led in a small urban embayment and a suite of biomarkers of fish health measured. These were condition factor (CF), liver somatic index (LSI), gonadosomatic index (GSI), hepatic EROD activity, polycyclic aromatic hydrocarbon (PAH) biliary metabolites, serum sorbitol dehydrogenase (s-SDH) and branchial enzymes cytochrome C oxidase (CCO), and lactate dehydrogenase (LDH) activities. The biomarkers of exposure EROD activity, and pyrene- and B(a)P-type biliary metabolites confirmed current or recent exposure of the fish and that fish were metabolizing contaminants. Relative to a reference site, LSI was higher in fish collected in the urban inlet as was the metabolic enzyme LDH activity. CF, GSI, s-SDH, CCO, and naphthalene-type metabolites were at similar levels in the urban inlet relative to the reference site. PAH biliary metabolite ratios of high-molecular-weight to low-molecular-weight suggest that fish from the urban inlet were exposed to pyrogenic PAHs, likely from legacy contamination and road runoff entering the embayment. Similarly, the sediment PAH ratios and the freshness indices suggested legacy contamination of a pyrogenic source, likely originating from the adjacent historic gasworks site and a degree of contamination of petrogenic nature entering the inlet via storm water discharge. Biomarkers of exposure and effect confirmed that black bream collected in the Claisebrook Cove inlet, Western Australia, are currently exposed to contamination and are experiencing metabolic perturbations not observed in fish collected at a nearby reference site.
Bioindicator snake shows genomic signatures of natural and anthropogenic barriers to gene flow
Publisher: Public Library of Science (PLoS)
Date: 29-10-2021
DOI: 10.1371/JOURNAL.PONE.0259124
Abstract: Urbanisation alters landscapes, introduces wildlife to novel stressors, and fragments habitats into remnant ‘islands’. Within these islands, isolated wildlife populations can experience genetic drift and subsequently suffer from inbreeding depression and reduced adaptive potential. The Western tiger snake ( Notechis scutatus occidentalis ) is a predator of wetlands in the Swan Coastal Plain, a unique bioregion that has suffered substantial degradation through the development of the city of Perth, Western Australia. Within the urban matrix, tiger snakes now only persist in a handful of wetlands where they are known to bioaccumulate a suite of contaminants, and have recently been suggested as a relevant bioindicator of ecosystem health. Here, we used genome-wide single nucleotide polymorphism (SNP) data to explore the contemporary population genomics of seven tiger snake populations across the urban matrix. Specifically, we used population genomic structure and ersity, effective population sizes (N e ), and heterozygosity-fitness correlations to assess fitness of each population with respect to urbanisation. We found that population genomic structure was strongest across the northern and southern sides of a major river system, with the northern cluster of populations exhibiting lower heterozygosities than the southern cluster, likely due to a lack of historical gene flow. We also observed an increasing signal of inbreeding and genetic drift with increasing geographic isolation due to urbanisation. Effective population sizes ( N e ) at most sites were small ( 100), with N e appearing to reflect the area of available habitat rather than the degree of adjacent urbanisation. This suggests that ecosystem management and restoration may be the best method to buffer the further loss of genetic ersity in urban wetlands. If tiger snake populations continue to decline in urban areas, our results provide a baseline measure of genomic ersity, as well as highlighting which ‘islands’ of habitat are most in need of management and protection.
Metabolic enzyme activities in black bream (Acanthopagrus butcheri) from the Swan-Canning Estuary, Western Australia
Publisher: Elsevier BV
Date: 08-2005
DOI: 10.1016/J.CBPC.2005.07.010
Abstract: The Swan-Canning estuary, in southwestern Australia, is subject to frequent algal blooms and associated periods of hypoxia due to high levels of nutrients in stormwater runoff and sewage spills. Fish in which cellular respiration is impaired due to chronic exposure to non-nutrient pollutants in the water will have a reduced ability to survive these periods of high stress. In order to investigate if metabolic respiration in black bream (Acanthopagrus butcheri) was altered, fish were collected from five sites in the Swan-Canning estuary in summer 2001, summer 2002 and winter 2002. Aerobic and anaerobic capacities were estimated by measuring the enzymes cytochrome C oxidase (CCO) and lactate dehydrogenase (LDH). Neither seasonal or annual trends, nor upstream or downstream gradients were observed in either biomarker. The fish collected from the Barrack Street site, which is close to the Perth Central Business District, were heavily challenged in their aerobic capacity in the summer months compared to the other sites. In addition, the fish at Barrack Street displayed an altered anaerobic capacity. It is likely that the impaired metabolic capacity of the fish at Barrack Street reduces the fishes' ability to survive the frequent algal blooms within the estuary.
Effects of seasonal variations and pond age on trace elements and their correlations with plankton productivity in commercial freshwater crayfish (cherax cainii austin, 2002) earthen ponds
Publisher: Hindawi Limited
Date: 05-2020
DOI: 10.1111/ARE.14542
MFO induction potential of fish species native to the Swan-Canning Estuary, Western Australia
Publisher: Wiley
Date: 2002
DOI: 10.1002/TOX.10030
Abstract: The use of mixed function oxygenase (MFO) enzymes as a potential biomarker of pollution in the Swan-Canning Estuary was investigated in four indigenous fish species, Perth herring (Nematalosa vlaminghi), sea mullet (Mugil cephalus), yellowtail trumpeter (Amniataba caudavittata), and black bream (Acanthopagrus butcheri). Each experimental fish was intraperitoneally injected with 10 micrograms/kg of 3,3',4,4',5-pentachlorobiphenyl per kilogram of fish using corn oil as a carrier. Controls were injected with 1 mL corn oil per kilo. Induction of the hepatic ethoxyresorufin-O-deethylase (EROD) activity was measured 10 days post injection. Perth herring did not survive the experimental period due to the poor ability of this fish to endure captivity and handling. Yellowtail trumpeter demonstrated a low EROD induction response (2-fold relative to controls), while sea mullet displayed a moderate EROD induction potential (3.5-fold relative to controls). Because of their lower EROD induction potential, yellowtail trumpeter and sea mullet were not considered the most suitable bioindicator species for Western Australian estuarine waters. Black bream has desirable population traits and had a relatively high MFO induction potential response (9-fold relative to controls). From the results it was concluded that, when using EROD induction as a biomarker, black bream is a suitable fish to use as a bioindicator species for investigations into the health of the Swan-Canning Estuary.
Metabolic disturbances in fish exposed to sodium pentachlorophenate (NaPCP) and 3,3′,4,4′,5-pentachlorobiphenyl (PCB126), individually or combined
Publisher: Elsevier BV
Date: 08-2002
DOI: 10.1016/S1532-0456(02)00091-1
Abstract: The Swan River Estuary is the recipient of multiple urban and agricultural contaminants which have the potential to induce liver detoxication enzymes as well as altering the metabolism of aquatic organisms. To test if altered liver metabolism would influence liver detoxication capacities, pink snapper (Pagrus auratus) were i.p. injected with peanut oil (controls), or pentachlorobiphenyl #126 (PCB126), with sodium pentachlorophenate (NaPCP), or PCB126+NaPCP. Relative to controls, ethoxyresorufin-O-deethylase (EROD) activity was induced in the PCB126 and PCB126+NaPCP fish, but not in the NaPCP group. In the liver, cytochrome c oxidase (CCO) activity was enhanced by the treatments while citrate synthase (CS) activity remained unchanged and lactate dehydrogenase (LDH) activity was increased in the NaPCP treatment only. The results suggest that liver CCO activity may be a suitable biomarker of effect following exposure to PCBs or phenolic compounds. In the white muscle, only the PCB126+NaPCP treatment enhanced CCO activity, with all other enzymatic activities remaining unchanged. It appears that the resilience to metabolic perturbations is greater for white muscle than for liver. Low serum sorbitol dehydrogenase (sSDH) activity and histopathology of the liver indicated no significant alteration of cellular structure, albeit the lipid droplet size was increased in the PCB126 and in the PCB126+NaPCP treatments. It is concluded that the hepatic metabolic changes correspond to histopathological observations, but an altered metabolic capacity do not influence the metabolism of xenobiotics by liver enzymes, as measured by EROD activity.
Hepatic metabolism of contaminants in the terapontid fish, yellowtail trumpeter (Amniataba caudavittata Richardson)
Publisher: Wiley
Date: 2008
DOI: 10.1002/TOX.20307
Abstract: The yellowtail trumpeter (Amniataba caudavittata) is an estuarine-dependent omnivorous fish found in the Swan-Canning Estuary, Western Australia. Thirty five fish were injected with either the polycyclic aromatic hydrocarbon, benzo[a]pyrene (B[a]P), the synthetic flavenoid beta-naphthoflavone (BNF), or used as controls. The fish were then s led at 3 and 7 days postinjection. Induction of the enzyme ethoxyresorufin O-deethylase (EROD) activity was nonsignificant while ethoxycoumarin O-deethylase (ECOD) activity induction differed amongst treatments. A high interin idual variability in the EROD activity was observed. The measurement of sorbitol dehydrogenase in the serum (s-SDH) was elevated (BNF 2.2 times and B[a]P 3.2 times the control fish) demonstrating that liver cell damage had occurred. Increases in biliary metabolites of both B[a]P-type and pyrene-type (19 times and 3.4 times the controls respectively) indicated that detoxification of pyrene-type compounds had taken place. Fish of the Terapontidae family, such as the yellowtail trumpeter, were found to be suitable for biomonitoring the health of the Swan-Canning Estuary. A combination of ECOD activity, s-SDH, and the measurement of biliary metabolites represents a suitable suite of biomarkers for environmental monitoring of the sublethal effects of PAH pollution in these fish.
Integrating Multiple Biomarkers of Fish Health: A Case Study of Fish Health in Ports
Publisher: Springer Science and Business Media LLC
Date: 09-01-2016
DOI: 10.1007/S00244-015-0258-0
Abstract: Biomarkers of fish health are recognised as valuable biomonitoring tools that inform on the impact of pollution on biota. The integration of a suite of biomarkers in a statistical analysis that better illustrates the effects of exposure to xenobiotics on living organisms is most informative however, most published ecotoxicological studies base the interpretation of results on in idual biomarkers rather than on the information they carry as a set. To compare the interpretation of results from in idual biomarkers with an interpretation based on multivariate analysis, a case study was selected where fish health was examined in two species of fish captured in two ports located in Western Australia. The suite of variables selected included chemical analysis of white muscle, body condition index, liver somatic index (LSI), hepatic ethoxyresorufin-O-deethylase activity, serum sorbitol dehydrogenase activity, biliary polycyclic aromatic hydrocarbon metabolites, oxidative DNA damage as measured by serum 8-oxo-dG, and stress protein HSP70 measured on gill tissue. Statistical analysis of in idual biomarkers suggested little consistent evidence of the effects of contaminants on fish health. However, when biomarkers were integrated as a set by principal component analysis, there was evidence that the health status of fish in Fremantle port was compromised mainly due to increased LSI and greater oxidative DNA damage in fish captured within the port area relative to fish captured at a remote site. The conclusions achieved using the integrated set of biomarkers show the importance of viewing biomarkers of fish health as a set of variables rather than as isolated biomarkers of fish health.
An assessment of the effectiveness of high definition cameras as remote monitoring tools for dolphin ecology studies
Publisher: Public Library of Science (PLoS)
Date: 12-05-2015
Feeding juvenile marron (Cherax cainii Austin, 2002) exclusively on live mixed plankton improves growth, total haemocyte count and pigmentation
Publisher: Elsevier BV
Date: 11-2021
Depurated fish as an alternative reference for field-based biomarker monitoring
Publisher: Springer Science and Business Media LLC
Date: 25-04-2013
DOI: 10.1007/S10661-012-2635-8
Abstract: The whole of the Swan-Canning Estuary, in the south-west of Australia, is impacted by human activity, and the selection of a local reference site to assess the impact of environmental contamination on the health of biota is not possible. To determine whether fish depurated under laboratory conditions could be used as an alternative to a reference site adult black bream (Acanthopagrus butcheri) were collected from the estuary and maintained in clean water (S24) for 3 months. A suite of biomarkers of fish health were assessed, and the results were compared with field-captured black bream from three sites within the estuary (Ascot, Claisebrook, and Riverton). Comparisons of a subset of biomarkers were also made between hatchery-bred juvenile fish and the depurated fish. Biomarker levels were up to 3.8 times higher in field captured fish compared with depurated fish, while DNA integrity was lower. EROD activity was comparable in the hatchery-bred black bream to the depurated fish while s-SDH levels were two times higher in the hatchery fish. From the results obtained, field-captured black bream depurated for 3 months are suitable to determine reference/baseline levels for biomarker of health studies in estuarine environments.
Alterations of metabolic enzymes in Australian bass, Macquaria novemaculeata, after exposure to petroleum hydrocarbons
Publisher: Springer Science and Business Media LLC
Date: 06-07-2005
DOI: 10.1007/S00244-004-0174-1
Abstract: Australian bass Macquaria novemaculeata were exposed to the water-accommodated fraction of Bass Strait crude oil, dispersed crude oil, or burnt crude oil to assess sublethal effects of oil spill remediation techniques on fish. Fish were exposed to these treatments for 16 days either through the water column or by way of a pre-exposed diet of hipod Allorchestes compressa. Fish gills, liver, and white muscle were s led and cytochrome C oxidase (CCO) and lactate dehydrogenase (LDH) activities quantified. In all treatments containing fish exposed by way of the water column, aerobic activity increased in the gills, whereas a decrease of this enzymic activity was observed in the liver and white muscle. Exposures by way of the food pathway indicated similar trends. Anaerobic (LDH) activity increased in the gills, liver, and white muscle after waterborne exposures. Stimulation in anaerobic activity also occurred in the liver and white muscle of fish after exposure to contaminated food. CCO activity in the gills was the most sensitive biomarker when monitoring waterborne exposures to petroleum hydrocarbons. In the gills, the dispersed oil treatment resulted in the most pronounced biological response, suggesting that in the short term the use of dispersants on an oil slick might cause the most perturbations to fish metabolism.
Biomarker response of pink snapper to chronic exposure to synthetic-based drilling muds
Publisher: Informa UK Limited
Date: 30-06-2009
The effect of different oil spill remediation techniques on petroleum hydrocarbon elimination in Australian bass (Macquaria novemaculeata)
Publisher: Springer Science and Business Media LLC
Date: 02-2001
Abstract: Petroleum hydrocarbons were investigated in juvenile Australian bass, Macquaria novemaculeata, following exposure to the water accommodated fraction (WAF) of Bass Strait crude oil, chemically dispersed crude oil, and burnt crude oil. Each treatment was administered for 16 days either through the water column or through the diet ( hipod, Allorchestes compressa). Polycyclic aromatic hydrocarbon (PAH) elimination was determined by measuring biliary benzo(a)pyrene (B(a)P) and naphthalene-type metabolites. Biliary PAH-type metabolite concentrations varied with the type of oil spill remediation technique, route of exposure (food versus water), and exposure concentration. Fish exposed to chemically dispersed crude oil via the water exhibited the highest PAH-type biliary metabolite concentrations, relative to fish exposed to other treatments. In fish exposed via the diet, the highest concentration of both types of biliary metabolites also appeared in the dispersed oil-exposed in iduals. The results suggest that chemically dispersing oil may have the greatest effect on bioavailability of hydrocarbons, both through waterborne and food chain exposures.
Snake scales record environmental metal(loid) contamination
Publisher: Elsevier BV
Date: 04-2021
Temporal variations and pond age effect on plankton communities in semi-intensive freshwater marron (Cherax cainii, Austin and Ryan, 2002) earthen aquaculture ponds in Western Australia
Publisher: Elsevier BV
Date: 02-2021
PLASMA BIOCHEMISTRY PROFILES OF WILD WESTERN TIGER SNAKES (NOTECHIS SCUTATUS OCCIDENTALIS) BEFORE AND AFTER SIX MONTHS OF CAPTIVITY
Publisher: Wildlife Disease Association
Date: 25-03-2021
Serum biliverdin as source of colouration upon sexual maturation in male blue-throated wrasse Notolabrus tetricus
Publisher: Wiley
Date: 06-2006
Induction of Fish Biomarkers by Synthetic-Based Drilling Muds
Publisher: Public Library of Science (PLoS)
Date: 22-07-2013
MV Wakashio grounding incident in Mauritius 2020: The world's first major spillage of Very Low Sulfur Fuel Oil
Publisher: Elsevier BV
Date: 10-2021
Biomarkers of exposure in fish inhabiting the Swan-Canning estuary, Western Australia - A preliminary study
Publisher: Springer Science and Business Media LLC
Date: 2002
First report of intersex in a lutjanid: the goldband snapper Pristipomoides multidens
Publisher: Wiley
Date: 08-2018
DOI: 10.1111/JFB.13744
Abstract: This is the first report of intersex in a lutjanid species, the goldband snapper Pristipomoides multidens, in which the gonads of a male fish contain multifocal oocytes scattered among testicular tissue. The incidence rate of intersex was low (<1.0%), with oocytes observed in the testes of only two of 206 male fish examined. The capacity for P. multidens to develop an intersex condition suggests that future monitoring of this species should include histological analysis of gonads.
Ability of BKME (bleached kraft mill effluent) exposed white suckers (Catostomus commersoni) to synthesize steroid hormones
Publisher: Elsevier BV
Date: 02-1994
Accumulation of cadmium in the otoliths and tissues of juvenile pink snapper (Pagrus auratus Forster) following dietary and waterborne exposure
Publisher: Elsevier BV
Date: 11-2009
DOI: 10.1016/J.CBPC.2009.06.007
Abstract: Laboratory experiments were conducted to examine if incorporation of Cd into the otoliths of juvenile pink snapper (Pagrus auratus Forster) was related to levels in the food or water. In the first experiment, fish were fed a regular diet (control group) or a Cd-contaminated diet (500mgCdkg(-1) or 1500mgCdkg(-1)) for 35days. In the second experiment, fish were exposed to waterborne Cd concentrations of <0.002microgL(-1) (control), 50microgL(-1), 100microgL(-1) and 150microgL(-1) for 35days. The sagittal otoliths were analysed using laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). Juvenile fish exposed to higher concentrations of waterborne or dietary Cd showed increased Cd levels in their otoliths. This study clearly demonstrated that both aqueous and dietary Cd exposures can result in Cd incorporation into the otoliths of pink snapper.
Trace metal incorporation in otoliths of pink snapper (Pagrus auratus) as an environmental monitor
Publisher: Elsevier BV
Date: 09-2010
DOI: 10.1016/J.CBPC.2010.04.012
Abstract: Otolith metal concentrations may be related to the environmental exposure history of fish to contamination. Otoliths of pink snapper (Pagrus auratus) collected from the marine basin of Cockburn Sound and offshore near Rottnest Island were analysed by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) to measure the concentrations of 11 trace metals. The following metals were investigated using their respective isotopes: aluminum (27Al), calcium (44Ca), manganese (55Mn), iron (57Fe), copper (65Cu), zinc (66Zn), strontium (88Sr), cadmium (111Cd), barium (138Ba), mercury (202Hg) and lead (208Pb). Significant differences in otolith metal concentrations were found between the s ling locations for Zn, Cd and Pb. These metals were significantly higher in the otolith edges of the pink snapper captured from the extensive industrial area bordering Cockburn Sound. Life history transects of Zn, Cd and Pb within otoliths of pink snapper s led from Cockburn Sound typically showed temporal trends that may correspond to the movement of this fish species in and out of this contaminated area during the yearly spawning season.
Interannual variability in fish biomarkers in a contaminated temperate urban estuary
Publisher: Elsevier BV
Date: 09-2005
DOI: 10.1016/J.ECOENV.2004.12.003
Abstract: During the past decade the Swan-Canning estuary, Western Australia, has shown signs of stress which has been attributed to high nutrient inputs. There is little information on the effect of nonnutrient contaminants on biota inhabiting the estuary. A suite of biomarkers was measured on black bream (Acanthopagrus butcheri) to determine whether annual variations in fish biomarkers exist in the wet (winter) and dry (summer) seasons. Serum sorbitol dehydrogenase showed no significant differences between years, indicating that measured mixed-function oxygenase (MFO) enzyme activities were not affected by annual variations in hepatic tissue damage. Ethoxyresorufin-O-deethylase activity was lower in female black bream than in male fish while ethoxycoumarin-O-deethylase activity was not influenced by gender. Biomarker levels measured at various sites confirm that major roads and drains are significant contributors of MFO-inducing chemicals into the Swan-Canning estuary. No consistent upstream or downstream gradient in biomarker response was identified. The ratio of naphthalene-type to benzo(a)pyrene-type biliary metabolites was linked to runoff from urban areas into the estuary. There was high annual variability in all biomarkers in both seasons, suggesting that biannual monitoring is required to evaluate the effect of contaminants on the biota in the estuary.
Oil spill remediation techniques can have different impacts on mixed function oxygenase enzyme activities in fish
Publisher: Springer Science and Business Media LLC
Date: 05-2006
Validation of a suite of biomarkers of fish health in the tropical bioindicator species, tambaqui ( Colossoma macropomum )
Publisher: Elsevier BV
Date: 02-2017
Testing the toxicity of influents to activated sludge plants with the Vibrio fischeri bioassay utilising a sludge matrix
Publisher: Wiley
Date: 10-2001
DOI: 10.1002/TOX.10000
Abstract: To protect the bioceonosis within activated sludge, a method of predicting the toxic effect of influents to the biological treatment stage of waste water treatment plants, based on DIN method 38412 L 34, has been developed. A population of the luminescent marine bacterium Vibrio fischeri was incorporated into a sludge testing matrix derived from a model laboratory and real activated sludge plants. The sludge was challenged with different concentrations of pure toxicants and complex aqueous s les, and light output by V. fischeri monitored. The results were compared to toxicant testing in the absence of sludge (standard test). The modified method was found to be less sensitive for some toxicants tested than the standard DIN and other bioluminescent tests, but considered more realistic as it provides buffering and takes into account sorption which can affect the sensitivity of the test towards some compounds. The method is comparable in terms of ease of use, speed, reproducibility and cost effectiveness to standard V. fischeri luminescence methods.
Time spent in post-feeding activities including feed preference by different weight groups of marron (Cherax cainii, Austin 2002) under laboratory conditions
Publisher: Elsevier BV
Date: 08-2021
Using a multi-biomarker approach to assess the effects of pollution on sand flathead (Platycephalus bassensis) from Port Phillip Bay, Victoria, Australia
Publisher: Elsevier BV
Date: 06-2017
DOI: 10.1016/J.MARPOLBUL.2017.03.067
Abstract: Hepatic gene expression and liver histology were examined in sand flathead (Platycephalus bassensis) from six locations in Port Phillip Bay, Victoria, Australia. Four sets of genes including thyroid-related genes (D1, D2, TTR, TRα and TRβ), metal metabolism-related genes (MT, MTF1, TF, Ferritin and FPN1), apoptosis-related genes (Diablo/SMAC1, Diablo/SMAC2 and CYP1A) and an endoplasmic reticulum stress biomarker gene (GRP78) were examined in female flathead using qRT-PCR. TRβ and Diablo/SMAC1 gene expression was significantly up-regulated in fish from all polluted sites compared to those from a reference site. The transcripts of TRα and FPN1 were significantly higher in flathead from Corio Bay, while the hepatic mRNA of TTR and GRP78 were significantly lower in those fish. Positive correlations were observed between Diablo/SMAC1 and CYP1A, D2 and TRβ, TRα and TRβ. This study demonstrates that application of pathway-based biomarker genes and histopathology can provide comprehensive information on the impact of environmental pollutants on fish.
A quarter century of recovery of the whelk Thais orbita from tributyltin pollution off Perth, Western Australia
Publisher: Elsevier BV
Date: 09-2020
A recurring population of the sea hare Bursatella hirsuta (Gastropoda: Aplysiidae) at Rottnest Island, Western Australia
Publisher: Informa UK Limited
Date: 02-10-2021
Stability and change in a changing environment: soft-bottom benthic molluscs in the Peel–Harvey Estuary over 42 years
Publisher: CSIRO Publishing
Date: 02-05-2022
DOI: 10.1071/MF21283
Abstract: Context Eutrophication caused extensive macroalgal blooms in the Peel–Harvey Estuary, Western Australia, in the 1970s. Nutrient inputs were reduced and an artificial channel was constructed in 1994 to increase marine flushing. Aims This study examines benthic mollusc populations in the estuary in 1978, 2000 and 2020, to determine what changes have occurred in the estuaries over time. Methods Quantitative s les were made at 10 sites in autumn and spring of each year physical and chemical parameters were measured in 2000 and 2020. Key results Species composition was stable, dominated by Arthritica semen and Hydrococcus brazieri however, there have been substantial changes in abundance of these and less common species. Conclusions The exact cause(s) of density changes could not be determined, but it is likely to be due to a combination of factors. Implications Further changes in mollusc assemblages in south-western Australian estuaries are expected as the climate warms and dries and the estuaries are stressed by human population growth.
EROD induction and biliary metabolite excretion following exposure to the water accommodated fraction of crude oil and to chemically dispersed crude oil
Publisher: Springer Science and Business Media LLC
Date: 2000
Abstract: Immature Atlantic salmon (Salmo salar) were exposed to water accommodated fraction (WAF) of Bass Strait crude oil or to Corexit 9527-dispersed crude oil for 6 days, followed by a depuration period of 29 days. Serum sorbitol dehydrogenase (SDH) levels, indicator of liver damages, remained low during the experiment. Hepatic EROD activity was induced within 2 days following the onset of the exposure in both treatments, and persisted for 2-4 and 4-6 days after transfer to clean sea water in the WAF and dispersed oil treatment, respectively. Naphthalene-type metabolites, determined by fixed-wavelength fluorescence detection, appeared in the bile of the fish with 2 days' delay compared to EROD induction. In both treatments, EROD activity induction and levels of naphthalene-type metabolites in the bile were significantly related. The biliary levels of naphthalene-type metabolites were over 15 times higher in fish exposed to dispersed crude oil relative to fish exposed to the WAF of Bass Strait crude oil. BaP-type metabolites appeared only in the bile of the fish exposed to the WAF, possibly due to BaP-type compounds remaining associated with the dispersant in the water column or to an inhibition of Phase II detoxification enzymes by the dispersant. Bile metabolites as determined by fixed-wavelength fluorescence and EROD induction appear to be sensitive and complementary biomarkers of exposure to PAH.
Nivolumab and Relatlimab in Patients With Advanced Melanoma That Had Progressed on Anti–Programmed Death-1/Programmed Death Ligand 1 Therapy: Results From the Phase I/IIa RELATIVITY-020 Trial
Publisher: American Society of Clinical Oncology (ASCO)
Date: 20-05-2023
DOI: 10.1200/JCO.22.02072
Abstract: Nivolumab and relatlimab activity in advanced melanoma with prior progression on anti–programmed death-1 rogrammed death ligand 1 (PD-(L)1)-containing regimens is under investigation. RELATIVITY-047 demonstrated significantly improved progression-free survival (PFS) for nivolumab and relatlimab over nivolumab in previously untreated advanced melanoma. The phase I/IIa, open-label RELATIVITY-020 trial part D assessed efficacy and safety of nivolumab and relatlimab in advanced melanoma with progression during, or within 3 months of, 1 (D1) or ≥ 1 (D2) anti–PD-(L)1-containing regimens. Safety was a primary end point. Objective response rate (coprimary end point) and PFS by blinded independent central review (BICR) were assessed. Five hundred eighteen patients (D1 = 354 D2 = 164) received nivolumab and relatlimab. Among evaluable patients, the objective response rate by BICR was 12.0% (95% CI, 8.8 to 15.8) in D1 (n = 351) and 9.2% (95% CI, 5.2 to 14.7) in D2 (n = 163). Responses appeared to be enriched among patients with tumors expressing programmed death ligand 1 or lymphocyte activation gene 3 however, responses were observed regardless of programmed death ligand 1 and lymphocyte activation gene 3 expression (1%). The median duration of response was not reached (95% CI, 12.9 to not reached) in D1 and 12.8 months (95% CI, 6.9 to 12.9) in D2. The median PFS by BICR was 2.1 months (95% CI, 1.9 to 3.5) in D1 and 3.2 months (95% CI, 1.9 to 3.6) in D2 the 6-month PFS rate was 29.1% (95% CI, 24.2 to 34.1) and 27.7% (95% CI, 20.5 to 35.4), respectively. The grade 3-4 treatment-related adverse event incidence was 15.0% in D1 and 12.8% in D2. One case of grade 3 myocarditis and no treatment-related deaths occurred across part D. Nivolumab and relatlimab had a manageable safety profile and demonstrated durable clinical activity in a proportion of patients with heavily pretreated advanced melanoma with prior progression on anti–PD-(L)1-containing regimens. [Media: see text]
Serum sorbitol dehydrogenase activity as an indicator of chemically induced liver damage in black bream (Acanthopagrus butcheri)
Publisher: Informa UK Limited
Date: 27-09-2007
Otolith microchemistry: Insights into bioavailable pollutants in a man-made, urban inlet
Publisher: Elsevier BV
Date: 05-2017
DOI: 10.1016/J.MARPOLBUL.2017.02.037
Abstract: Black bream (Acanthopagrus butcheri) were collected from an artificial inlet, Claisebrook Cove, Western Australia. Claisebrook Cove is adjacent to an historic contaminated site that was remediated during the 1990s. It was later identified as a priority area due to elevated levels of sediment contaminants including Zn, Cu, and Pb. Black bream were collected from this cove in 2005 and 2012 and their otoliths were analysed by laser ablation inductively coupled plasma mass spectrometry of the most recent growth zone. Levels of Zn and Mn, which are metabolically regulated, did not correlate with sediment contamination. However, reduction in sediment Cu levels over time coincided with reduced Cu otolith levels from 2005 to 2012. Results indicate that the elemental composition of the marginal edge of Black bream otoliths can identify bioavailable contaminants in an urban estuary and, with monitoring, can be utilized to establish long-term trends.
Biliary PAH metabolite elimination in Australian bass, Macquaria novemaculeata following exposure to bass strait crude oil and chemically dispersed crude oil
Publisher: Springer Science and Business Media LLC
Date: 02-2003
A Mixture of Manganese, Silica and Phosphorus Supplementation Alters the Plankton Density, Species Diversity, Gut Microbiota and Improved the Health Status of Cultured Marron (Cherax cainii, Austin an
Publisher: Springer Science and Business Media LLC
Date: 16-04-2021
DOI: 10.1007/S12011-021-02721-2
Abstract: Trace element supplementation to the freshwater environment can influence the plankton density and species ersity, contributing to the nutrition of aquaculture species, especially during the juvenile stage. An experiment was conducted under laboratory conditions to evaluate the effects of supplementing different mixtures of manganese, silica and phosphorus on the plankton density and species ersity and their impact on cultured juvenile marron (Cherax cainii, Austin and Ryan, 2002). Manganese, silica and phosphorus in concentrations of 0.0024, 0.41, 0.05 mg*L
Evidence and patterns of maternal transfer of metals and trace elements in Western tiger snakes (Notechis scutatus occidentalis) – a pilot study
Publisher: Wiley
Date: 05-12-2021
DOI: 10.1111/AEC.12985
Metabolic enzymes as biochemical markers of effect following exposure of fish to sodium pentachlorophenate (Na-PCP)
Publisher: Springer Science and Business Media LLC
Date: 10-2002
Metabolic enzyme activities in fish gills as biomarkers of exposure to petroleum hydrocarbons
Publisher: Elsevier BV
Date: 09-1999
Reduced Detection of Indo-Pacific Bottlenose Dolphins (Tursiops aduncus) in an Inner Harbour Channel During Pile Driving Activities
Publisher: Aquatic Mammals Journal
Date: 12-2015
Biomarkers in rock oysters (Saccostrea mordax) in response to organophosphate pesticides
Publisher: Institute of Research and Community Services Diponegoro University (LPPM UNDIP)
Date: 27-01-2021
DOI: 10.14710/IK.IJMS.26.1.7-16
Abstract: Chlorpyrifos is a xenobiotics contaminants that threats the marine environment and the living organism within the habitat. Although several marine bivalve species have been used as the indicator of marine pollution, the used of Saccostrea mordax is remaining unknown. This study aimed at investigating the suitability of lysosome membrane integrity, carboxylesterase activity, 8-oxo-2′-deoxyguanosine and condition index as biomarkers in adult S. mordax following their exposure to 0.0, 5.0 and 500 μg.L-1 of Chlorpyrifos for 21 days under laboratory conditions. Results indicated that the lysosome membrane integrity showed a dose-dependent response with a significant statistical number of destabilized cells between all the treatment groups. Carboxylesterase activity was significantly inhibited in 500 μg.L-1 chlorpyrifos treated group, while the environmentally relevant concentration (5 μg.L-1) did not induce a significant inhibition with reference to the control. Similarly, the condition index showed a dose-dependent response with the oysters exposed to 500 μg.L-1 chlorpyrifos exhibiting a significantly reduced growth rate. There was no statistical significance in the means of both 8-oxo-2′-deoxyguanosine in all treatment groups. The reaction of S. mordax to chlorpyrifos contamination demonstrates that the species can potentially be used as sentinel organisms in environmental monitoring programs. Lysosome membrane integrity was a single out as a sensitive biomarker for exposure to chlorpyrifos and is therefore suitable for environmental monitoring for sublethal concentrations of chlorpyrifos contaminations. Additionally, the use of multiple biomarkers was found to be robust in this study and can be extrapolated to other ecotoxicological studies
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