ORCID Profile
0000-0001-7134-6736
Current Organisations
Khulna University
,
University of Tasmania
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Publisher: Coastal Education and Research Foundation
Date: 05-03-2015
Publisher: Elsevier BV
Date: 12-2021
Publisher: Oxford University Press (OUP)
Date: 15-03-2017
Abstract: The blue mussel (Mytilus edulis) is known as a robust bivalve species, although its larviculture appears to be highly susceptible to diseases. In this study, we isolated 17 strains from induced mortality events in healthy wild-caught blue mussel adults and demonstrated that they caused between 17% and 98% mortality in blue mussel larvae in a newly developed, highly controlled immersion challenge test model. Eight of the isolates belong to the Splendidus clade of vibrios, while the other isolates belong to the genus Photobacterium. The genomes of the most virulent Vibrio isolate and the most virulent Photobacterium isolate were sequenced and contained several genes encoding factors that have previously been linked to virulence towards bivalves. In vitro tests confirmed that all 17 isolates were positive for these virulence factors. The sequenced genomes also contained a remarkably high number of multidrug resistance genes. We therefore assessed the sensitivity of all isolates to a broad range of antibiotics and found that there were indeed many strong positive correlations between the sensitivities of the isolates to different antibiotics. Our data provide an ecological insight into mass mortality in blue mussels as they indicate that wild mussels contain a reservoir of pathogenic bacteria.
Publisher: AkiNik Publications
Date: 2021
Publisher: Elsevier BV
Date: 2022
Publisher: Informa UK Limited
Date: 19-09-2020
Publisher: Wiley
Date: 05-09-2023
DOI: 10.1111/JFD.13850
Publisher: MDPI AG
Date: 29-06-2022
DOI: 10.3390/MD20070430
Abstract: Lectins are a unique group of nonimmune carbohydrate-binding proteins or glycoproteins that exhibit specific and reversible carbohydrate-binding activity in a non-catalytic manner. Lectins have erse sources and are classified according to their origins, such as plant lectins, animal lectins, and fish lectins. Marine organisms including fish, crustaceans, and mollusks produce a myriad of lectins, including rhamnose binding lectins (RBL), fucose-binding lectins (FTL), mannose-binding lectin, galectins, galactose binding lectins, and C-type lectins. The widely used method of extracting lectins from marine s les is a simple two-step process employing a polar salt solution and purification by column chromatography. Lectins exert several immunomodulatory functions, including pathogen recognition, inflammatory reactions, participating in various hemocyte functions (e.g., agglutination), phagocytic reactions, among others. Lectins can also control cell proliferation, protein folding, RNA splicing, and trafficking of molecules. Due to their reported biological and pharmaceutical activities, lectins have attracted the attention of scientists and industries (i.e., food, biomedical, and pharmaceutical industries). Therefore, this review aims to update current information on lectins from marine organisms, their characterization, extraction, and biofunctionalities.
Publisher: Bangladesh Journal of Fisheries, Fisheries Society of Bangladesh
Date: 28-03-2022
Abstract: This study evaluated the effect of different experimental diets on the growth of Penaeus monodon cultured at different salinities. We used four diets in this experiment, such as diet-1 (F1), diet-2 (F2), diet-3 (F3) and diet-4 (F4). All the diets were fed to P. monodon juveniles cultured at salinities of 5 ppt (S5), 10 ppt (S10), 15 ppt (S15), and 20 ppt (S20) for a 45-day tank trial. In this study, the feed’s fishmeal protein was replaced with concentrated protein as an alternative approach to aquaculture sustainability. There was no interaction effect and no main effects of feed and salinity on the growth of P. monodon. Feed and salinity had an interaction effect, and salinity had a main effect on the survival of P. monodon. Overall, survival was higher in the tanks with higher salinity, such as 15 ppt and 20 ppt. There was also a higher survival at salinity 10 ppt where shrimps were fed with F1 (83.33±3.33%) and F2 (86.67±8.82%). Estimated marginal survival also indicated that survival tends to be raised with increased salinity. There was an environmental fluctuation during this study. Hence, this data might not indicate the general features of growth and survival of P. monodon.
Publisher: Penerbit Universiti Kebangsaan Malaysia (UKM Press)
Date: 31-05-2017
Publisher: Springer Science and Business Media LLC
Date: 02-10-2013
Publisher: Central Fisheries Research Institute (SUMAE)
Date: 2017
Publisher: Marine Science and Technology Bulletin
Date: 30-09-2022
Abstract: The invasive alien species (IAS) are widely recognized as a significant threat to marine bio ersity and severely affect ecosystem services. There has been no measurable global assessment of their impacts and routes of introduction. This review highlights some aspects of invasive species and their impacts on the ecosystem in general. For many roots like global transportation, biological pest control, climate changes, and sometimes commercial, invasive species are introduced into the new environments. Afterward, the invasive species are rapidly dominant over the indigenous species because of their first growth, rapid reproduction, ecological competence, and phenotypic plasticity, consequently, altering the structure of Ecosystems and deterring the biological and physical organization of the system. Many policies have been introduced to stop the destruction produced by invasive animals and plants and to prevent upcoming invasions. Some critical components of getting rid of invasion are concern about transporting wildlife to new areas, Ballast water in tankers, aquarium species, and shipping.
Publisher: Springer Science and Business Media LLC
Date: 29-04-2020
Publisher: OMICS Publishing Group
Date: 2013
Publisher: Hindawi Limited
Date: 21-12-2019
DOI: 10.1111/ARE.13942
Publisher: Khulna University
Date: 19-01-2022
DOI: 10.53808/KUS.2022.19.01.2114-LS
Abstract: Most often male freshwater Prawn (Macrobrachium rosenbergii) exhibits higher growth compared to the female counterpart. The current study has been conducted to evaluate the production performance and the survival rate of mono-sex male freshwater prawn culture compared to mono-sex female and mixed-sex culture. Conjointly the study also appraises the production competence of mono-sex male M. rosenbergii at different stocking densities. The experiment was conducted in two different phases. The first experiment comprised of three treatments, viz. mono sex male (T1), mono sex Female (T2) and both male & female (T3) with the same stocking density (3 in d/m2) and maintaining the sex ratio 100% male and female for T1 and T2, and 50:50 ratio for T3. The second experiment was conducted with all-male prawn (100% male) with three different stockings densities (i.e. 1, 2 and 3 in d/m2 successively as D1, D2 and D3). The results showed that in the first experiment, mono-sex males performed better growth, survival and production than mono-sex females and mixed-sex populations. In the second experiment, the highest in idual growth was found to be 57.81±0.12 g in D1, 52.22±0.14 g in D2 and 40.97±0.1g in D3. Similarly, D1 showed the highest survival compared to D2 and D3. In contrast, the highest production (888.05±9.05 kg/ha) was found in D2, followed by D3 (826±42.07 kg/ha) and D1 (496.18±34.86 kg/ha). Hence, this research suggests practicing mono-sex male M. rosenbergii culture at stocking of 2/m2 for accomplishing maximum profits.
Publisher: Springer Science and Business Media LLC
Date: 14-07-2020
Publisher: Wiley
Date: 14-02-2023
DOI: 10.1111/JWAS.12943
Abstract: This study evaluated the effect of two commercial probiotics, zymetin, and super PS, on the culture environment, production, and economics of Macrobrachium rosenbergii aquaculture . The experiment was conducted using three treatments, including T 1 , probiotics applied in all culture phases T 2 , during grow‐out and a control ( C ). Prawns were fed commercial pelleted diets. Earthen ponds were used at a stocking density of two juveniles/m 2 . Water concentrations of non‐ionized ammonia and nitrite‐nitrogen were significantly lower ( p 0.05) in T 1 than in T 2 and C . Probiotic application significantly ( p 0.05) reduced phosphate content and balanced soil pH. Growth performance, condition factor, survival, protein utilization, and production were significantly higher in T 1 followed by T 2 compared to C by the end of grow‐out. Application of zymetin and super PS in all culture phases significantly ( p 0.05) reduced the feed conversion ratio in T 1 compared to T 2 and C . Positive allometric growth was observed in T 1 , whereas growth was isometric in C and T 2 . Probiotic treatment during all culture phases achieved the highest net returns to land, family labor, and management. Application of probiotics during the entire culture cycle could be the best practice for improving production and economics in M. rosenbergii aquaculture.
No related grants have been discovered for Shikder Saiful Islam.