Assessment of Macrobenthic Community Structure: An Approach to Coastal Water Pollution in Bangladesh

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Assessment of Macrobenthic Community Structure: An Approach to Coastal Water Pollution in Bangladesh

November 14, 2020 Biological Science 0

The present study was planned to investigate the diversity of benthos in Bangladesh’s South-Western coastal waters with the following goals. A study was conducted during February-March 2015 on the assemblages of benthic macro faunal populations in the coastal areas of Bangladesh following the normal methods for assessing the environmental pollution status. The composition of macrobenthic species in the Bakkhali river estuary showed the highest numbers of Polycheate (46%) followed by gastropods-23%, atrhropods-9%, bivalvia-8% and oligochaete-6%. The abundance of the macrobenthic communities (r=0.846) and species richness (r=0.864) is significantly affected by the water salinity of the sampling sites (p ⁇  0.05). Both the study areas showing the maximum (3909 ± 540 ind./m2) and lowest (2236 ± 689 ind./m2) benthic macrofaunal abundance density respectively, namely the Bakkhali River Estuary and the Meghna River Estuary, could be regarded as moderately polluted areas according to Shannon-Wiener Species Diversity Index findings (2.699) ± 0.13 and 2.00 ± 0.11 respectively) and Margalef species abundance (2.21 ± 0.43 and 1.36 ± 0.111 respectively). ), Respectively). Coastal fishing opportunities are high along the south-eastern portion of Bangladesh, and fish production is higher in the estuarine areas of that coast than in the other coastal portions of that coast. About that country. Environmental pollution is considered to be a crucial constraint to producing environmentally friendly fisheries. It is also conceivable that the Macrobenthic Community has clarified in the current review that a key future outline for assessing the coastal water contamination status of the areas concerned could be a key future outline. Concerning Bangladesh.

Author (s) Details

Md. Jahangir Sarker
Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali-3814, Bangladesh.

Md. Shamsul Alam Patwary
Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali-3814, Bangladesh.

Md. Monjurul Hasan
Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali-3814, Bangladesh.

Mehedi Hasan Tanmay
Department of Fisheries and Marine Science, Noakhali Science and Technology University, Noakhali-3814, Bangladesh.

Mohammed Rashed Parvej
Bangladesh Fisheries Research Institute, Mymensingh, Bangladesh.

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