ORCID Profile
0000-0002-0876-2144
Current Organisations
CSIRO
,
CSIRO Marine and Atmospheric Research
,
James Cook University
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Publisher: Springer Science and Business Media LLC
Date: 18-06-2013
Publisher: University of Chicago Press
Date: 12-2021
DOI: 10.1086/717026
Abstract: AbstractCrown-of-thorns sea stars (
Publisher: Wiley
Date: 28-08-2018
DOI: 10.1111/GEB.12779
Publisher: Elsevier BV
Date: 09-0003
Publisher: Wiley
Date: 30-09-2013
Publisher: CSIRO
Date: 2011
Publisher: CSIRO Oceans & Atmosphere
Date: 2016
Publisher: Informa UK Limited
Date: 20-02-2017
Publisher: Inter-Research Science Center
Date: 14-02-2013
DOI: 10.3354/MEPS10234
Publisher: Informa UK Limited
Date: 21-06-2016
Publisher: CSIRO Publishing
Date: 2002
DOI: 10.1071/MF01168
Publisher: Springer Science and Business Media LLC
Date: 08-2018
Publisher: Springer Science and Business Media LLC
Date: 15-03-2022
DOI: 10.1038/S41467-022-29013-0
Abstract: Wildfire magnitude and frequency have greatly escalated on a global scale. Wildfire products rich in biogenic elements can enter the ocean through atmospheric and river inputs, but their contribution to marine phytoplankton production is poorly understood. Here, using geochemical paleo-reconstructions, a century-long relationship between wildfire magnitude and marine phytoplankton production is established in a fire-prone region of Kimberley coast, Australia. A positive correlation is identified between wildfire and phytoplankton production on a decadal scale. The importance of wildfire on marine phytoplankton production is statistically higher than that of tropical cyclones and rainfall, when strong El Niño Southern Oscillation coincides with the positive phase of Indian Ocean Dipole. Interdecadal chlorophyll-a variation along the Kimberley coast validates the spatial connection of this phenomenon. Findings from this study suggest that the role of additional nutrients from wildfires has to be considered when projecting impacts of global warming on marine phytoplankton production.
Publisher: Elsevier BV
Date: 07-2017
Publisher: Elsevier BV
Date: 10-2017
DOI: 10.1016/J.MARPOLBUL.2017.08.064
Abstract: Imposex is a reproductive abnormality in which female snails begin to transform to males, but do not become functional. It was caused by tributyltin (TBT) used as an antifoulant in boat paints. Imposex was first recorded marine snails (Conus) (Mollusca: Caenogastropoda) at Rottnest Island, Western Australia, in January 1991, where 88% of in iduals at the west end were affected. Most were at moderate Stages 3 and 4 on a scale of 0 (no affect) to 6 (death). TBT was banned on boats 25m in September 2013. In February 2017 only 4% of Conus had imposex, at Stage 1.
Publisher: Frontiers Media SA
Date: 18-07-2022
DOI: 10.3389/FMARS.2022.904461
Abstract: The overlapping effect of anthropogenic activities and climate change are major drivers for a shift in coastal marine phytoplankton biomass. Linear regression analyses are not sufficient to detect the nonlinear relationship between complex environmental factors and phytoplankton shift. Here, an Artificial Neural Network (ANN) model is applied to quantify the relative contribution of pearl oyster farming, temperature and rainfall on phytoplankton increases in Cygnet Bay, Australia. The result shows that increased oyster farming ranks among the most important factors for phytoplankton increases, with a relative importance of 54% for diatoms and 74% for dinoflagellates temperature plays a second important role with a positive impact on diatoms (relative importance of 25%) but a negative impact on dinoflagellates (relative importance of 19%) rainfall is the least important which enhances diatom biomass only (relative importance of 21%). Our ANN analysis provides a useful approach for quantifying the complex interrelationships affecting phytoplankton shift.
Publisher: Springer Science and Business Media LLC
Date: 07-10-2013
Publisher: Springer Science and Business Media LLC
Date: 20-02-2018
Abstract: Chlorophyll a is the most commonly used indicator of phytoplankton biomass in the marine environment. It is relatively simple and cost effective to measure when compared to phytoplankton abundance and is thus routinely included in many surveys. Here we collate 173, 333 records of chlorophyll a collected since 1965 from Australian waters gathered from researchers on regular coastal monitoring surveys and ocean voyages into a single repository. This dataset includes the chlorophyll a values as measured from s les analysed using spectrophotometry, fluorometry and high performance liquid chromatography (HPLC). The Australian Chlorophyll a database is freely available through the Australian Ocean Data Network portal ( portal.aodn.org.au/ ). These data can be used in isolation as an index of phytoplankton biomass or in combination with other data to provide insight into water quality, ecosystem state, and relationships with other trophic levels such as zooplankton or fish.
Publisher: CSIRO Publishing
Date: 2010
DOI: 10.1071/MF09275
Abstract: Retention and dispersal of shelf waters under the influence of ocean boundary currents is crucial to recruitment processes of many coastal species. In this study, a Lagrangian particle tracking method based on an eddy-resolving, data-assimilating, hydrodynamic model is used to study spatial variations of local retention rates and alongshore dispersal of surface waters on the continental shelf off the west coast of Australia. The circulation on the shelf off the west coast of Australia is dominated by the southward-flowing eastern boundary current, the Leeuwin Current, which is interrupted by episodic wind-driven, northward, inshore surface transport during the austral summer, and by mesoscale eddy formations during the austral winter. Low-retention shelf regions tend to experience high alongshore currents, owing to the near-shore influence of the Leeuwin Current, protruding coastal geography, or formation of mesoscale eddies, whereas high-retention regions are sheltered from the direct influence of the Leeuwin Current by coastal geographic features. Alongshore dispersal also exhibits spatial as well as seasonal heterogeneity, with predominantly southward dispersal during the austral winter, and more symmetrical dispersal during the austral summer. Shelf retention and seasonal dispersal are linked with recruitment processes of invertebrate and fish species off the west coast of Australia.
Publisher: Elsevier BV
Date: 06-2011
DOI: 10.1016/J.MARPOLBUL.2011.03.040
Abstract: The large green-tide events that occurred in the Yellow Sea in 2008 (3489km(2)) and 2009 (4994km(2)) are shown to be novel events preceded only once by a much smaller event in 2007 (82km(2)). The blooms originated in the coastal area of Jiangsu province and spread north-east towards the Shandong Peninsula. The blooms grew at different rates and mesoscale variability in surface winds explained the differences in the spatial and temporal patterns of blooms in 2008 and 2009. The 2009 bloom was tracked to its origin immediately offshore of extensive intertidal flats between Yancheng and Nantong where recent rapid expansion of Porphyra aquaculture has occurred. We review published hypotheses which have been advanced to explain the occurrence of blooms and in light of our findings, we conclude that the accumulation and disposal of waste Ulva prolifera from Porphyra aquaculture rafts is the most likely cause of the blooms.
Publisher: Informa UK Limited
Date: 09-07-2019
Publisher: Inter-Research Science Center
Date: 11-06-2018
DOI: 10.3354/MEPS12606
Publisher: Springer Science and Business Media LLC
Date: 08-10-2015
Publisher: Elsevier
Date: 2013
Publisher: Informa UK Limited
Date: 26-05-2015
Publisher: Magnolia Press
Date: 20-02-2018
DOI: 10.11646/ZOOTAXA.4382.1.7
Abstract: One new species and three new distribution records for the family Crangonidae (Crustacea: Decapoda) are reported from Western Australia. A new species, Philocheras gardenensis sp. nov. is described and illustrated based on specimens collected from the Western Australia. The new species closely resembles Philocheras fasciatus (Risso, 1816), but can be distinguished easily by the absence of lobe-like folds on either side of the middle line of the carapace, the presence of a lateral carina extending from the branchiostegal spine, the longer middorsal carina and distolateral tooth of the antennal scale. A key for the genus Philocheras is provided, including currently, a total of 58 species and subspecies reported worldwide. Range extensions of three Crangonid shrimps are reported within Australia, and they are Philocheras obliquus (Fulton & Grant, 1902), Pontocaris arafurae (Bruce, 1988) and Vercoia gibbosa Baker, 1904.
Publisher: Elsevier BV
Date: 09-2022
Publisher: Elsevier BV
Date: 09-2013
Publisher: Wiley
Date: 21-09-2023
DOI: 10.1111/JFB.15554
Publisher: Elsevier BV
Date: 07-2010
DOI: 10.1016/J.MARPOLBUL.2010.04.022
Abstract: Three jellyfish species, Aurelia aurita, Cyanea nozakii and Nemopilema nomurai, form large blooms in Chinese seas. We report on the distribution and increasing incidence of jellyfish blooms and their consequences in Chinese coastal seas and analyze their relationship to anthropogenically derived changes to the environment in order to determine the possible causes. A. aurita, C. nozakii and N. nomurai form blooms in the temperate Chinese seas including the northern East China Sea, Yellow Sea and Bohai Sea. N. nomurai forms offshore blooms while the other two species bloom mainly in inshore areas. Eutrophication, overfishing, habitat modification for aquaculture and climate change are all possible contributory factors facilitating plausible mechanisms for the proliferation of jellyfish blooms. In the absence of improvement in coastal marine ecosystem health, jellyfish blooms could be sustained and may even spread from the locations in which they now occur.
Publisher: Springer Science and Business Media LLC
Date: 27-01-2023
DOI: 10.1007/S00338-023-02351-1
Abstract: The short spined crown-of-thorns starfish Acanthaster brevispinus inhabits deeper water soft bottom habitats, in contrast to the more infamous Indo-Pacific Acanthaster species complex of which population outbreaks have been responsible for widespread coral mortality throughout the Indo-West Pacific region. Acanthaster brevispinus has not previously been regarded as a threat to corals or coral reefs. Here, we report A. brevispinus occurring on mesophotic off-reef or inter-reef habitats in 20–70-m depths dominated by solitary corals off both the western and eastern coasts of Australia. On Ningaloo Reef, A. brevispinus were found on mushroom coral ( Cycloseris distorta ) beds using an underwater towed camera and further exploration using a remotely operated vehicle (ROV) confirmed predation by A. brevispinus on C. distorta . On the southern Great Barrier Reef, A. brevispinus in large numbers were found in habitat dominated by the dendrophylliid Heteropsammia cf. cochlea. Predation on H. cf. cochlea was also directly observed. This is the first confirmed report of predation on hard corals by A. brevispinus, and while there are yet to be any records of population outbreaks of this species, such outbreaks could have a significant effect on mesophotic solitary coral assemblages.
Publisher: Cambridge University Press (CUP)
Date: 14-07-2010
DOI: 10.1017/S0025315410000871
Abstract: We examined habitat, population size-structure, colour dimorphism, reproductive behaviour, arm loss and the relation between arm regeneration to pyloric caeca indices in populations at Whitford Rock (WR) and Port Beach (PB) in January 2009. The sediment was fine sand at WR and a mix of larger particles at PB. In iduals at PB were predominantly orange and more uniform in colour than those at WR, which were predominantly grey. Body size and pyloric caeca index of in iduals at WR were greater than those of in iduals at PB, indicating the nutritional condition was better at WR. This suggests the quantity or quality of food at WR was better. Organic matter of the pyloric caeca and body wall of intact and regenerating in iduals at both sites were similar, indicating loss of an arm did not affect gross proximate composition of the organs. Sea stars with regenerating arms made up 5.4 and 8.4 % of the populations observed. Despite the very small size of the gonads, some in iduals were in the pseudocopulatory position, indicating this behaviour occurs even when gametes are not present. In every case observed, the male of the pseudocopulating pair was situated above the female. Given the abundance of this species in nearshore habitats dominated by sediment, it is likely to be ecologically important. However much of the biology and ecology of the species, even its diet, remain unknown. This together with its unusual mode of reproductive behaviour involving pseudocopulation, which is only known from two other species of asteroids, underscore the need for more research on Archaster angulatus .
Publisher: Springer Science and Business Media LLC
Date: 09-05-2019
Publisher: Springer Science and Business Media LLC
Date: 22-02-2021
DOI: 10.1038/S42003-021-01760-8
Abstract: Environmental DNA (eDNA) metabarcoding is a sensitive and widely used approach for species detection and bio ersity assessment. The most common eDNA collection method in aquatic systems is actively filtering water through a membrane, which is time consuming and requires specialized equipment. Ecological studies investigating species abundance or distribution often require more s les than can be practically collected with current filtration methods. Here we demonstrate how eDNA can be passively collected in both tropical and temperate marine systems by directly submerging filter membranes (positively charged nylon and non-charged cellulose ester) in the water column. Using a universal fish metabarcoding assay, we show that passive eDNA collection can detect fish as effectively as active eDNA filtration methods in temperate systems and can also provide similar estimates of total fish bio ersity. Furthermore, passive eDNA collection enables greater levels of biological s ling, which increases the range of ecological questions that eDNA metabarcoding can address.
Publisher: Wiley
Date: 20-02-2020
DOI: 10.1002/EDN3.74
Publisher: CSIRO
Date: 2011
Publisher: Elsevier BV
Date: 04-1992
Publisher: Elsevier BV
Date: 09-2010
DOI: 10.1016/J.MARPOLBUL.2010.05.015
Abstract: In the summer of 2008, the world's largest green-tide occurred in the Yellow Sea, China. The hypothesized cause was the expansion of Porphyra yezoensis aquaculture along the Jiangsu coastline and the re-occurrence of a green-tide in 2009 was predicted. In this study, satellite and field images showed the formation of the June 2009 green-tide which again originated from the Jiangsu coast. The responsible species, its source and biomass accumulation were studied to support the previous hypothesis. Morphological and phylogenetic analysis demonstrated the homology of Ulva prolifera in the 2008 green-tide with the U. prolifera from P. yezoensis aquaculture rafts. About 91-505kg/ha of U. prolifera was attached to the P. yezoensis aquaculture rafts and a total biomass of 4956 tonnes was estimated during the harvesting of P. yezoensis. This is sufficient to seed a bloom when they are dislodged from the rafts as a result of harvesting practices.
Publisher: Frontiers Media SA
Date: 06-2021
DOI: 10.3389/FMARS.2021.658756
Abstract: Over the past decade, vertebrate populations globally have experienced significant declines in distribution and abundance. Understanding the reasons behind these population declines is the first step in implementing appropriate management responses to improve conservation outcomes. Uncovering drivers of extirpation events after the fact, however, requires a careful forensic approach to prevent similar declines elsewhere. The once abundant and species-rich sea snake fauna of Ashmore Reef Marine Park, in the Timor Sea, collapsed dramatically in the early 2000s. No such decline has occurred on surrounding reefs. We synthesise the evidence for this collapse and the subsequent slow recovery and evaluate the plausibility of potential drivers for the declines, as well as provide evidence against certain explanations that have been proposed in the past. Our systematic review shows that of seven possible hypotheses considered, at least three are credible and require additional information: (1) stochastic environmental events may have increased the snakes’ susceptibility to pathogens, (2) a resurgence in the abundance of top predators may have induced a localised change in trophic structure, and (3) an acute increase in local boat traffic may have had negative physical impacts. One or more of these factors, possibly acting in combination with as yet other unidentified factors, is the most plausible explanation for the precipitous decline in sea snake populations observed. Based on this position, we identify future research directions with a focus on addressing critical gaps in knowledge to inform and prioritise future management actions.
Publisher: CSIRO
Date: 2011
Publisher: Elsevier BV
Date: 12-2022
Publisher: Springer Science and Business Media LLC
Date: 27-07-2013
Publisher: CSIRO
Date: 2021
DOI: 10.25919/DGZT-T965
Publisher: Springer Science and Business Media LLC
Date: 29-02-2016
DOI: 10.1038/SREP22290
Abstract: Box jellyfish cause human fatalities and have a life cycle and habit associated with shallow waters ( m) in mangrove creeks, coastal beaches, embayments. In north-western Australia, tow video and epibenthic sled surveys discovered large numbers (64 in a 1500 m tow or 0.05 m −2 ) of Chironex sp. very near to the benthos ( cm) at depths of 39–56 m. This is the first record of a population of box jellyfish closely associated with the benthos at such depths. Chironex were not widespread, occurring only in 2 of 33 tow videos and 3 of 41 epibenthic sleds spread over 2000 km 2 . All Chironex filmed or captured were on low to medium relief reefs with rich filter feeder communities. None were on soft sediment habitat despite these habitats comprising 49% of all sites. The importance of the reef habitat to Chironex remains unclear. Being associated with filter feeder communities might represent a hazard, and other studies have shown C. fleckeri avoid habitats which represent a risk of entanglement of their tentacles. Most of our observations were made during the period of lowest tidal current flow in the morning. This may represent a period favourable for active hunting for prey close to the seabed.
Publisher: Wiley
Date: 19-07-2016
DOI: 10.1002/LOM3.10117
Publisher: Springer Science and Business Media LLC
Date: 23-02-2011
Publisher: Cambridge University Press (CUP)
Date: 03-07-2017
DOI: 10.1017/S0025315417001126
Abstract: The population size structure from a total of 876 in iduals, together with published values of growth rate, maximum size and size at age were used to estimate an instantaneous rate of natural mortality (M) of 0.46–0.59 year −1 in a population of the sea star Archaster angulatus from south-western Australia. Peak abundance (17%) of all animals s led was 105–109 mm arm radius (means of 4.2–4.8 years of age) and only one per cent of sea stars are predicted to live beyond 8 years in the population studied. There are few comparable studies on sea stars but when compared with rates of natural mortality in other echinoderms (sea urchins), A. angulatus is intermediate among species which exhibit the extremes of life history strategies, that is, those which grow very rapidly and may live just two years or less and those with very slow growth rates and which may live for decades.
Publisher: Wiley
Date: 18-01-2018
DOI: 10.1002/ECE3.3836
Abstract: Ocean warming can modify the phytoplankton biomass on decadal scales. Significant increases in sea surface temperature (SST) and rainfall in the northwest of Australia over recent decades are attributed to climate change. Here, we used four biomarker proxies (TEX 86 index, long‐chain n ‐alkanes, brassicasterol, and dinosterol) to reconstruct approximately 60‐year variations of SST, terrestrial input, and diatom and dinoflagellate biomass in the coastal waters of the remote Kimberley region. The results showed that the most significant increases in SST and terrestrial input occurred since 1997, accompanied by an abrupt increase in diatom and dinoflagellate biomasses. Compared with the results before 1997, the average temperature during 1997–2011 increased approximately 1°C, rainfall increased 248.2 mm, brassicasterol and dinosterol contents increased 8.5 and 1.7 times. Principal component analysis indicated that the warming SST played a more important role in the phytoplankton increase than increased rainfall and river discharge.
Publisher: Elsevier BV
Date: 03-2022
Publisher: CSIRO Publishing
Date: 2020
DOI: 10.1071/MF19066
Abstract: Most of the world’s tropical coastal and shelf areas are heavily affected by anthropogenic activities, but the north-west shelf of Australia is considered a ‘very low-impact’ area. The role of herbivory on coral reefs is recognised, but most of that research comes from reefs with considerable land-based impacts. In this study we s led the teleost community and evaluated herbivory on the reef platform at Browse Island, a small isolated island 200km off north-western Australia, using several approaches: (1) tethering of macroalgae (2) herbivore exclosures and (3) video footage. In total, 99 teleost species from 26 families were identified. Turf algal consumption was evident and 18 teleost turf consumers were identified. In contrast, no evidence was found of herbivory on large macroalgae, and browsers, the only group able to consume macroalgae, were represented by just four species all belonging to the genus Naso. The lack of ersity among these specialist herbivores may be a consequence of the small surface area of the reef and the distance to other emergent reefs. Based on a model of top-down control of macroalgae, the reef is potentially vulnerable to disturbance. Small isolated reefs can have low resilience despite having low impacts from land.
Publisher: Informa UK Limited
Date: 11-2013
Publisher: CSIRO
Date: 2011
Publisher: Elsevier BV
Date: 03-2007
Publisher: Inter-Research Science Center
Date: 23-06-2016
DOI: 10.3354/MEPS11740
Publisher: Informa UK Limited
Date: 15-02-2019
Publisher: Informa UK Limited
Date: 17-10-2018
Publisher: Wiley
Date: 20-06-2014
Publisher: Springer Science and Business Media LLC
Date: 06-04-2021
DOI: 10.1038/S42003-021-01994-6
Abstract: A Correction to this paper has been published: 0.1038/s42003-021-01994-6
Publisher: Springer Netherlands
Date: 28-09-2013
Publisher: CSIRO Publishing
Date: 2012
DOI: 10.1071/MF11216
Abstract: Cyanobacterial symbionts may enable sponges to play a critical role in bentho-pelagic coupling, recycling nutrients at the benthic surface and providing a key requirement for ecosystem function. This is the first study to investigate the depths to which these symbioses are viable and the first record of photosynthetic sponges (i.e. sponges having a symbiotic relationship with photosynthetic cyanobacteria) from mesophotic temperate habitats. Sponges with high levels of photosynthetic cyanobacteria occurred at depths of up to 50 m, medium levels to 75 m and low levels to 150 m off south-western Australia. The proportion of sponges that showed no epifluorescence increased greatly with depth. Cyanobacterial symbionts sequenced from sponges at 40 and 50 m belonged to the genera Synechococcus and Synechocystis. Our results verify that the domain of photosynthetic sponges is not just tropical or shallow water temperate environments. Sponges made up the highest biomass of biota across all the sites we s led from depths of 30–150 m and we hypothesise that photosynthetic cyanobacterial symbionts may be important in facilitating sponges to dominate habitats at these depths off Australia’s oligotrophic west coast.
Publisher: Elsevier BV
Date: 1990
Publisher: Springer Science and Business Media LLC
Date: 27-06-2019
Publisher: Elsevier BV
Date: 06-2009
DOI: 10.1016/J.MARPOLBUL.2009.01.013
Abstract: In late June 2008, just weeks before the opening of the Beijing Olympics, a massive green-tide occurred covering about 600km(2) along the coast of Qingdao, host city for Olympic sailing regatta. Coastal eutrophication was quickly attributed with the blame by the international media and some scientists. However, we explored an alternative hypothesis that the cause of the green-tide was due to the rapid expansion of Porphyra yezoensis aquaculture along the coastline over 180km away from Qingdao, and oceanographic conditions which favoured rapid growth of the bloom and contributed to transport of the bloom north into the Yellow Sea and then onshore northwest to Qingdao. At its peak offshore, the bloom covered 1200km(2) and affected 40,000km(2). This is the largest green-tide ever reported, the most extensive translocation of a green-tide and the first case of expansive seaweed aquaculture leading to a green-tide. Given similar oceanographic conditions to those that occurred in 2008, these green-tides may re-occur unless mitigation measures such as those proposed here are taken.
Publisher: Elsevier BV
Date: 2022
DOI: 10.1016/J.JENVMAN.2021.113996
Abstract: Loss of coastal wetland habitats has been directly linked to a decline in waterbird populations including migratory species, leading to calls to reverse this trend in part by restoring these habitats. However, distinct "sediment scarcity" has hindered coastal habitat restoration. Here, taking the Yangtze River Delta, China as an ex le, we put forward a feasible solution to solve the sediment shortage in habitat restoration so necessary to restore migratory waterbird numbers. Four biological indices including total wetland area, wetland vegetation area and waterbird species richness and abundance, were used to compare and assess the restorative efforts. Three solutions were adopted for the rehabilitation sites, including promoting sediment deposition and settlement through engineering intervention in Chongming Dongtan (CD) and Eastern Nanhui (EN), and using dredged sediments to nourish and create new habitats in Hengsha Eastern Shoal (HES). The mean wetland area increased 19.66 km
Publisher: Springer Science and Business Media LLC
Date: 07-09-2020
DOI: 10.1038/S42003-020-01225-4
Abstract: Most marine algae preferentially assimilate CO 2 via the Calvin-Benson Cycle (C 3 ) and catalyze HCO 3 − dehydration via carbonic anhydrase (CA) as a CO 2 -compensatory mechanism, but certain species utilize the Hatch-Slack Cycle (C 4 ) to enhance photosynthesis. The occurrence and importance of the C 4 pathway remains uncertain, however. Here, we demonstrate that carbon fixation in Ulva prolifera , a species responsible for massive green tides, involves a combination of C 3 and C 4 pathways , and a CA-supported HCO 3 − mechanism. Analysis of CA and key C 3 and C 4 enzymes, and subsequent analysis of δ 13 C photosynthetic products showed that the species assimilates CO 2 predominately via the C 3 pathway, uses HCO 3 − via the CA mechanism at low CO 2 levels, and takes advantage of high irradiance using the C 4 pathway. This active and multi-faceted carbon acquisition strategy is advantageous for the formation of massive blooms, as thick floating mats are subject to intense surface irradiance and CO 2 limitation.
Publisher: CSIRO
Date: 2011
Publisher: Informa UK Limited
Date: 02-10-2021
Publisher: University of Chicago Press
Date: 12-2021
DOI: 10.1086/718141
Abstract: AbstractThe selectivity of crown-of-thorns sea stars (
Publisher: Royal Society of Chemistry (RSC)
Date: 1997
DOI: 10.1039/A700601B
Publisher: American Geophysical Union (AGU)
Date: 2013
DOI: 10.1029/2012JC008292
Publisher: Inter-Research Science Center
Date: 1992
DOI: 10.3354/MEPS085107
Publisher: Elsevier BV
Date: 05-2017
Publisher: American Geophysical Union (AGU)
Date: 28-02-2020
DOI: 10.1029/2019PA003712
Publisher: Cleveland, Qld., CSIRO, AIMS
Date: 2008
Publisher: The Plankton Society of Japan/The Japanese Association of Benthology
Date: 27-05-2020
DOI: 10.3800/PBR.15.156
Publisher: Elsevier BV
Date: 03-1993
Publisher: Elsevier BV
Date: 04-2016
DOI: 10.1016/J.MARPOLBUL.2016.02.051
Abstract: Annually recurrent green-tides in the Yellow Sea have been shown to result from direct disposal into the sea of fouling Ulva from Pyropia aquaculture. The role abiotic factors play in Ulva biomass accumulation on rafts was studied to find ways to mitigate this problem. Dissolved inorganic nitrogen (DIN) was very high at all sites, but the highest Ulva biomass was associated with the lowest DIN and anthropogenic N. Under luxuriant background nutrient conditions, variability in temperature and periods of emersion, rather than pH, light and salinity determined Ulva biomass. Two dominant species of Ulva displayed differing tolerances to temperature and desiccation which helped explain why Ulva prolifera dominates floating green-tides. Rather than trying to mitigate green-tides only by reducing nutrient pollution, an earlier harvest of Pyropia in southern Jiangsu Province especially before temperatures increase greatly above 10°C during April, could reduce the biomass of U. prolifera disposed from rafts.
Publisher: Elsevier BV
Date: 2022
Publisher: No publisher found
Date: 2021
DOI: 10.25919%2FDGZT-T965
Publisher: CRC Press
Date: 03-09-2018
Location: Australia
No related grants have been discovered for John Keesing.