Oliveira, Rory Romero de Sena, Andrade, Marcelo Costa, Machado, Fabiola Seabra, Cunha, Élida Jesana Santana, Freitas, Flaviane Souto de, Klautau, Alex Garcia Cavalleiro de Macedo, Giarrizzo, Tommaso and Saint-Paul, Ulrich (2019) Biometric relationships between body size and otolith size in 15 demersal marine fish species from the northern Brazilian coast. Acta Amazonica, 49 (4). pp. 299-306. DOI https://doi.org/10.1590/1809-4392201900571.

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The relationships between fish size and sagitta otolith measurements were calculated for the first time for 15 species belonging to six families from the northern Brazilian coast. A total of 220 fish were sampled from the bycatch landed by the bottom-trawl industrial shrimp-fishing fleet between August and September 2016. All species had strong relationships between otolith measurements and fish total length with the coefficient of determination (r 2) ranging between 0.71 and 0.99. The variable most strongly related to fish total length was found to be the sagittal otolith length (OL) with 98% of the variability. These relationships are a useful tool to estimate length and mass of preyed fish from otoliths found in stomach contents of marine predators.

Document Type: Article
Programme Area: UNSPECIFIED
Research affiliation: Ecology > Mangrove Ecology
Refereed: Yes
Open Access Journal?: Yes
DOI: https://doi.org/10.1590/1809-4392201900571
ISSN: 0044-5967
Date Deposited: 02 Dec 2019 12:53
Last Modified: 26 Mar 2024 13:30
URI: http://cris.leibniz-zmt.de/id/eprint/3127

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