Length-weight relationship and condition factors of Parambassis dayi (Bleeker 1874) from Periyar river, India
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Authors
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VISHNU PRIYA K
Department of Fisheries Resource Management, Kerala University of Fisheries & Ocean Studies, Panangad
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LOVEDEEP SHARMA
Department of Fisheries Resource Management, Kerala University of Fisheries & Ocean Studies, Panangad
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ANVAR ALI P. H.
Department of Fisheries Resource Management, Kerala University of Fisheries & Ocean Studies, Panangad
Abstract
Length-weight relationship provides biological information about a fish species (Le Cren, 1951) and is helpful in assessing a stock as well as population characteristics (Koushlesh et al., 2017). Mathematical correlation between fish length-weight is useful in converting length observations into weight estimates to provide several measures viz. on gonadal development, feeding rate and maturity condition (Beyer, 1987; Froese, 1998). In addition, condition factor (K) and relative condition factor (Kn) provide information regarding environmental conditions, stage of sexual maturity, and degree of food sources availability i.e well-being of fish (Gomiero, 2005).
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