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Weight–length relationships for fish species discarded in commercial fisheries of the Algarve (southern Portugal)
Author(s) -
Borges T. C.,
Olim S.,
Erzini K.
Publication year - 2003
Publication title -
journal of applied ichthyology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 62
eISSN - 1439-0426
pISSN - 0175-8659
DOI - 10.1111/j.1439-0426.2003.00480.x
Subject(s) - pelagic zone , demersal zone , fishery , biology , demersal fish , fish <actinopterygii> , marine fish
Summary Weight and length descriptive statistics are reported for 73 fish species discarded in the commercial fisheries from the south coast of Portugal. Parameters of the weight–length relationship were estimated for 57 of these species. These are the first weight–length parameters reported for 20 of these species. For an additional 16 species for which no weight–length parameters have been reported, the parameter a was estimated by setting b = 3.0. Samples were used from five gear types: crustacean trawler, fish trawler, pelagic purse seine, demersal purse seine and trammel net. Samples were obtained from depths ranging from <30 m to >500 m and included pelagic and demersal species.