Length-Weight Relationship analysis of four freshwater fish Species from Doyang reservoir at Nagaland, India

摘要

The LWRs (length-weight relationships) of four freshwater fish species from medium categorized Doyang reservoir at Wokha District, Nagaland were studied, namely as Garra naganensis Hora, 1921; Devario naganensis Chaudhuri, 1912; Chagunius nicholsi Myers, 1924 and Schistura manipurensis Chaudhuri, 1912. Fish sample were collected in every 15 days interval by cast-nets (1.0 x 1.0 cm mesh size covering the 4.5 m(2) areas), gill-nets (0.4-5.0 cm mesh size), scoop-nets (mesh size with 0.3 x 0.3 cm to 0.6 x 0.6 cm) and also from the local fishermen in between July 2017 to January 2019. The regression value of slope (b) is fallen into 2.860-3.115 range with significant correlation values (r(2) >= .960).