Length-Weight Relationship and Condition Factor of Six Small Fish Species of the Floodplain Wetlands of Assam
Abstract
LWR (Length Weight Relationship) parameters are very important to determine different aspects, like fish growth and condition. The parameters in the LWR study reflect the current status of a fish species in a particular geographical area. The study tried to explore the LWRs of six (06) floodplain wetland species of Assam, i.e.,Chanda nama, Lepidocephalus guntea, Mystus vittatus, Puntius ticto, Parambassis lala,and Rasbora daniconius. The floodplain wetlands, which harbor a large number of indigenous small fish populations, are facing anthropogenic stress in recent times. The length range of the species studied was between 2.0 and 9.4 cm, and the weight ranged between 0.14 – 9.58 g. The regression coefficient was found to be higher in species like C. nama (0.96), R. daniconius (0.93), while it was found to be lower in other species, with the least value in M. vittatus (0.69). The condition factor (K) in all the studied species was found close to 1, with the least value in P. ticto (0.90 ± 0.21) and the highest in L. guntea (1.07±0.12). Length-weight exercise after a regular interval is very necessary to understand the health of the fish species in these water bodies.
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