Fish length-weight relationships in the Weddell Sea and Bransfield Strait

Length-weight relationships are provided for 49 Antarctic fishes from 9 families. The fish were from three research cruises of 1996, 1998 and 2000 to the Weddell Sea and Antarctic Peninsula. Samples were collected by benthopelagic net, Agassiz trawl and bottom trawl at depths of 200-2,300 m. The exp...

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Bibliographic Details
Published in:Polar Biology
Main Authors: Artigues, Bernat, Morales-Nin, Beatriz, Balguerias, E.
Format: Article in Journal/Newspaper
Language:English
Published: Springer 2003
Subjects:
Online Access:http://hdl.handle.net/10261/85328
https://doi.org/10.1007/s00300-003-0505-0
Description
Summary:Length-weight relationships are provided for 49 Antarctic fishes from 9 families. The fish were from three research cruises of 1996, 1998 and 2000 to the Weddell Sea and Antarctic Peninsula. Samples were collected by benthopelagic net, Agassiz trawl and bottom trawl at depths of 200-2,300 m. The exponent b in the length-weight relationship W = aLb ranged from 2.53 to 4.05. With a mean of 3.33, 50% of the values ranged between 3.157 and 3.480. In 31 species, the parameters were determined for each sex. For 64.5% of species, b was higher in females than in males. Exceptions were the Channichthyidae where b for six species was higher for males. Peer Reviewed