Ecology of Two Riverine Wetlands of Goalpara District, Assam in Relation to Plankton Productivity
نویسندگان
چکیده
Ecological investigation of two riverine wetlands of Goalpara district, Assam, India was carried out in relation to planktonic productivity from 2006 to 2008. The physico chemical parameters were found fluctuating with the growth of both phytoplankton and zooplankton. Both the beel was dominated by Chlorophyceae throughout the year amongst which Ulothrix and Spirogyra were found as dominating species. Among the Copepods, Cyclops was over all dominating species and amongst the Cladoceran groups; Daphnia, Bosmina and Moina were found in the wetlands throughout the studied period. Phytoplankton community of Urpod beel constituted 58.82% to 65.52%, while zooplankton community constituted 34.48% to 41.18% of the total plankton hauled throughout the studied period. Chlorophyceae fluctuates between the range of 47% to 58%, Bacillariophyceae 20% to 27% and Myxophyceae fluctuates between the ranges of 20% to 30%. Mean value of GPP in Hasila beel was estimated between the range of 2.88 gC/ m/day and 4.66 gC/ m/day, while in Urpod beel it was between 2.75g Cmday and 4.27g Cmday.
منابع مشابه
Contribution of Sericulture to Women’s Income in Assam -A Case Study in Goalpara District of Assam, India
متن کامل
Fishery Status of Undivided Goalpara District, Assam with Reference to Socio -economic Conditions of Fishers
The studies were conducted during 2008–2010 to evaluate Fishery status and its bearing on socio-economic condition of Fishers Community of undivided Goalpara district of Assam. A total of 97 species belongs to 56 genera of 26 families were recorded from various fish landing centers of the region during study period. Fishers catch fish in the river throughout the year. However, fishing intensity...
متن کاملGenetic diversity of Persea bombycina from goalpara district of Assam, India
Assam of the northeastern region of India is unique in terms of its rich biodiversity and multiple ethnicity of its people. The impact of the resultant socio-religiocultural diversity is also reflected in the diverse traditional ways of silkworm farming. We report the genetic diversity of Persea bombycina “Som” from different locations of Goalpara district of Assam, India, where random amplifie...
متن کاملA Report on Kala-Azar in Assam (Concld.)
From the records of the number of fresh cases of kala-azar in the different districts for the last thirty years (table II and the charts), it will be found that epidemics of kala-azar have occurred in different districts of Assam at intervals of about 7 to 10 years and have lasted for about ten years each time. The charts show two distinct epidemic waves during the last thirty years in Sibsagar...
متن کاملA Study of Socio-Economic Factors Influencing Adoption of Farm Level Soil and Water Conservation Practices in the Riverine Areas of North Bank Plains Zone of Assam
Soil and water are two very scarce important natural resources without which crop production is not possible. Soil degradation due to erosion and the depletion of ground water resources are the two major environmental problems threatening agricultural production and productivity in the riverine belt of Assam. The riverine belt is spread over as the alluvial land forms on the recent flood plain ...
متن کامل