Green Global
Foundation   Journal
...an emerging window for scientific research and publication across the globe

ABUNDANCE AND DISTRIBUTION OF PLANKTON IN THE SUNDERBANS MANGROVE FOREST (Pages : 43 - 54)

The present study conducted at the coastal belt of Bay of Bengal during April 1 to December 1, 2005 to identify and quantify the abundance, taxonomy and relative ratio of phytoplankton and zooplankton, plankton samples were collected from four main streams of the Sundarbans mangrove ecosystems. A total of 15 genera of phytoplankton were recorded. The number of genera under the class Chlorophyceae, Myxophyceae and Bacillriophyceae were identified at 5, 7 and 3 respectively. Cosciodiscus sp. and Microcystis sp. were the most dominant genera in phytoplankton community. The average overall phytoplankton cell abundance was varied from 275 to 5680 individual per liter in summer, 125 to 6250 individual/l in monsoon and 267 to 7707 individual/l in winter. The study revealed the average phytoplankton abundance was 2510, 1786 and 2550 individuals/l in summer, monsoon and winter respectively. Among the three class of phytoplankton Myxophyceae (54 percents) is the most dominant in summer in the sunderbans mangrove forest. The abundance of Myxophyceae was 58 percents and 55 percents in monsoon and winter respectively. The abundance of Chlorophyceae was 23 percents 16 percents and 22 percents in summer, monsoon and winter respectively.A total of 11 genera of zooplankton were recorded. The number of genera of zooplankton under the class Crustacea was identified The average overall zooplankton cell abundance was varied from 370 to 4420 individual/l in summer, 250 to 2550 individual/l in monsoon and 260 to 2835 individual/l in winter. The study revealed the average zooplankton abundance was 2038, 1260 and 1206 individuals/l in summer, monsoon and winter respectively.Download