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.
Oliveira R.R.d.S., Andrade M.C., Machado F.S., Cunha É.J.S., Freitas F.S.d., Klautau A.G.C.d.M., Giarrizzo T. and Saint-Paul U. (2019) Biometric relationships between body size and otolith size in 15 demersal marine fish species from the northern Brazilian coast. Acta Amazonica 49(4): 299-306. 10.1590/1809-4392201900571
@article{Oliveira2019,
Title = {Biometric relationships between body size and otolith size in 15 demersal marine fish species from the northern Brazilian coast},
Author = {Oliveira, Rory Romero de Sena and Andrade, Marcelo Costa and Machado, Fabiola Seabra and Cunha, Élida Jesana Santana and Freitas, Flaviane Souto de and Klautau, Alex Garcia Cavalleiro de Macedo and Giarrizzo, Tommaso and Saint-Paul, Ulrich},
Editor = {},
Journal = {Acta Amazonica},
Year = {2019},
Pages = {299-306},
Volume = {49},
Doi = {10.1590/1809-4392201900571},
Abstract = {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.},
}
TY - JOUR
AU - Oliveira, Rory Romero de Sena
AU - Andrade, Marcelo Costa
AU - Machado, Fabiola Seabra
AU - Cunha, Élida Jesana Santana
AU - Freitas, Flaviane Souto de
AU - Klautau, Alex Garcia Cavalleiro de Macedo
AU - Giarrizzo, Tommaso
AU - Saint-Paul, Ulrich
TI - Biometric relationships between body size and otolith size in 15 demersal marine fish species from the northern Brazilian coast
T2 - Acta Amazonica
PY - 2019
SP - 299-306
VL - 49
DO - 10.1590/1809-4392201900571
AB - 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.
ER -
