Length‐weight relations for finfish species landed as trawl by‐catch from north‐western Bay of Bengal

This is the authors' abstract. We don't add key points for this paper.

For effective trawl by-catch management, length-weight relationships for seven data-deficient finfish species landed as by-catch in the trawl fishery (square meshed trawl cod-end of 40 mm) were documented from Visakhapatnam, along north-western Bay of Bengal during 2017–2019. Following precise taxonomic identification, total length and weight of each individual for each by-catch species were measured and the relationship parameters estimated. Slope or exponent of the relations ranged from 2.456 to 3.394, with coefficient of determination ≥0.90. Present information on length-weight relationship parameters is virgin globally for Leiodon cutcutia and Uranoscopus archionema; and for Jaydia lineata, Drepane punctata, Grammoplites scaber and Thryssa setirostris; they are first records from northern Indian Ocean.