NOPR Collection:

Constraints and Prospects of Sustainable Fisheries Management in Bangladesh

2017-03-02T09:12:02Z

Title: Constraints and Prospects of Sustainable Fisheries Management in Bangladesh Authors: Shamsuzzaman, Md. Mostafa; Xiangmin, Xu; Tania, Nusrat Jahan; Al-Mamun, Md. Abdullah Abstract: Fisheries sector of Bangladesh plays an important role in food security, employment, foreign exchange earnings and different other facets of the economy. The findings of the present study show that the yield of the floodplain, ponds, seasonal water logging area, artisanal fisheries, estuaries, and rivers are varied; there are various limitations on expansion to their potentials. Several factors are identified as threats to the sustainability of the fisheries resources that includes over-exploitation, pollutants like agrochemicals, industrial wastes, lack of stock assessment to set MSY, underprivileged enactment of fisheries laws and regulations, the inadequate spread of fish farming technology, low financial capacities, and ineffectiveness extension practices. Page(s): 7-15

Review of fisheries legal framework of Bangladesh: Towards policy implications

2017-03-02T12:34:43Z

Title: Review of fisheries legal framework of Bangladesh: Towards policy implications Authors: Shamsuzzaman, Md. Mostafa; Xiangmin, Xu; Karim, Ehsanul; Tania, Nusrat Jahan Abstract: This article scrutinized policy papers, acts, policy progressions, policy drift, and policy accomplishments with regards to marine stocks, capture fisheries, marine environment policy in Bangladesh in the context of an important coastal delta based country. This is done to review existing policies to devise strategies and action plan in light of fisheries ecosystem and suggestions for the realization of action plans for renewable resources including fish, shrimps and other aquatic resources and marine environment management. Analysis on existing policy documents; plans, ordinances, and relevant literature through reviewed to find out gaps, if there were any, and made policy recommendations to amend the existing policies or to formulate an entirely new policy guidelines. Problems among the existing policies are related to their outcome focused are not desired output basis. This review suggests that the policy on marine fisheries is not well specified thereby demands improvement in the policy content, and greater challenges may lie in implementing modified policy and in improving policy processes. Page(s): 16-22

Influence of A biotic stress on biosynthesis of alga-chemicals and its relation to biological activities

2017-03-02T08:51:50Z

Title: Influence of A biotic stress on biosynthesis of alga-chemicals and its relation to biological activities Authors: Shalaby, Emad A. Abstract: Present study is to illustrate the relationship between the environmental stress and defense pathway from algae to protection from this stress. Marine environments are characterized by broad fluctuations of environmental conditions that can be strong stress inducers in macroalgal populations, including extreme temperatures, rapid salinity and nutrient changes, desiccation, intense sunlight, and others. These factors are extremely important for the geographical distribution of macroalgae and also can be responsible for several physiological responses of these organisms. The current study conclude that, the effects of various stresses on algae led to change in gene expression and its related to of secondary metabolite production which have different biological activities as antioxidant, anticancer and antimicrobial activities. Page(s): 23-32

Molecular detection of Candidatus Scalindua flavia, study of anammox bacterial community structure, composition in the sediments of the East China Sea and the Yellow Sea

2017-03-02T08:48:19Z

Title: Molecular detection of Candidatus Scalindua flavia, study of anammox bacterial community structure, composition in the sediments of the East China Sea and the Yellow Sea Authors: Shehzad, Ahmed; Qismat, Shakeela; Ibrar, Khan; Faisal, Nouroz; Zeeshan, Niaz Abstract: In this study, the diversity, community structure and distribution of anammox bacteria in sediments from five sites of the ECS and YS were explored by using both the 16S rRNA and hzo functional gene biomarkers. A high diversity of anammox bacteria in the studied sites with Candidatus is observed. Scalindua being the dominant group of anammox bacteria. With 16S rRNA gene primers, an inimitable Candidatus. Scalindua phylotype was identified, putatively represented a novel species, and tentatively named “ Candidatus. Scalindua flavia”. In addition, three other distinct clades were also detected with a discrete clustering in the consensus tree. Statistical analysis of environmental variables indicated that NH₄⁺ and PO₄^3- are positively correlated to shape the differential distribution of anammox bacteria in different environments. Page(s): 33-47