Acta Ichthyologica et Piscatoria 33(2): 145-152, doi: 10.3750/AIP2003.33.2.04
Weight-length relationships of fishes discarded by trawlers in the North Aegean sea
expand article infoM.K. Lamprakis, A.A. Kallianiotis, D.K. Montopoulos

Corresponding author: M.K. Lamprakis

© M.K. Lamprakis, A.A. Kallianiotis, D.K. Montopoulos.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation: Lamprakis M, Kallianiotis A, Montopoulos D (2003) Weight-length relationships of fishes discarded by trawlers in the North Aegean sea. Acta Ichthyologica et Piscatoria 33(2): 145-152. https://doi.org/10.3750/AIP2003.33.2.04
Open Access
Abstract
Background. Weight-length relationships of discarded species can de used for the estimation of discarded quantities per species, if the species ′length-frequency distribution is known. In this study, we present weight-length for 26 fish species discarded by commercial trawlers. Materials and methods. We present weight -length relationships (W=a TL b ), for 26 discarded fish species, from samples caught with commercial trawlers (diamond cod- end mesh size: 14 mm; nominal bar length), from October 1996 to May 1998 in the North Aegean Sea. Results. The values of the exponent b of the weight-length relationships of the 26 fish species differed between years for six species and ranged from 1.507 to 3.596 (median and mean: 3.068 and 2.968 respectively). Conclusion. Weight -length relationships for 5 out of the 26 fish species are presented for the first time.