Abundance, Species Diversity and Spatial Distribution of Rotifer Community of Dal Lake, Kashmir, India

摘要

During the study period 44 taxa of Rotifera belonging to 3 orders, viz, Ploima, Flosculariacea and Bdelloidea were recorded. Family Brachionidae was dominant in the lake. Most of the species recorded by earlier authors are still present in the lake but some have been disappeared completely. Hazaratbal basin depicted the highest species diversity, viz, Brachionus bidentata, B. calyciflorus, B. plicatalis, B. quadridentata, Euchlanis dilatata, Keratella cochlearis, K. stipitata, K.quadrata, K.valga, Notholca acuminata, Platiyas patulus, P. quadricornis, Mytilina mucronata, Trichocerca tetractris. T.longiseta.Cephalodella auriculata, C.exigua, C. gibba, Monostyla bulla, M. quadridentata, M. closterocera, M.lunaris, Lecane luna, Gastropus stylifer, Polyarthra vulgaris, Filinia longiseta and Asplanchna priodonta but with low population density. Brarinumbal basin recorded low species diversity of Rotifera but their population was high. High rotifer density seems to be a characteristic of eutrophic lakes.