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Plankton biodiversity of Dharamtar creek adjoining Mumbai harbour

DRS at CSIR-National Institute of Oceanography

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Title Plankton biodiversity of Dharamtar creek adjoining Mumbai harbour
 
Creator Tiwari, L.R.
Nair, V.R.
 
Subject Plankton
Biodiversity
Zooplankton
Physicochemical properties
Geographical distribution
Population density
Industrialization
Waste disposal
Resource conservation
 
Description The phytoplankton and zooplankton diversity of Dharamtar creek, a vital system adjoining the Mumbai harbour were assessed to obtain baseline information. A total of 58 genera of phytoplankton were encountered from the area, which included 46 diatoms, 6 dinoflagellates and 6 other algae. Variation in phytoplankton cell count was enormous (17-5980 x 10 sup(3) l sup(-1)) with an average cell count of 266 x 10 sup(3) l sup(-1). The phytoplankton community was dominated by diatoms (97.6%) followed by dinoflagellates (2%) and other algae (0.4%). Blooms of Skeletonema and Peridinium were respectively observed during October - November and December. Shannon and Weaver's diversity index HI ranged from 0.29 - 3.6 (av. 2.42) while Margalet's D varied from 1.4-4.93 (av. 2.96). Zooplankton population density varied between 3091 & 1723786/100m sup(3) (av.126986/100m sup(3)). Copepods formed the largest group of zooplankton population (71.9%) comprising 46 species belonging to 23 genera. Dharamtar creek sustains a rich plankton community. However, recent industrial development along the banks of creek may pose the problem due to waste disposal into this creek system. Losses of marine life diversity are largely the results of conflicting uses, in particular coastal habitat, which leads to degradation of habitats. The best way to conserve biodiversity is to protect habitat diversity.
 
Date 2008-08-04T04:42:18Z
2008-08-04T04:42:18Z
2002
 
Type Conference Article
 
Identifier Proceedings of the National Seminar on Creeks, Estuaries and Mangroves - Pollution and Conservation, 28th to 30th November, 2002, Thane. Ed. by: Quadros, G. 96-102p.
http://drs.nio.org/drs/handle/2264/1356
 
Language en
 
Publisher Vidya Prasarak Mandal's B.N. Bandodkar College of Science; Thane (India)