Data/hora: 02/06/2024 14:37:35

Provedor de dados: | 83
País: | Brazil
Título: | Use of otolith strontium:calcium and zinc:calcium ratios as an indicator of the habitat of Percophis brasiliensis Quoy &amp;amp; Gaimard, 1825 in the southwestern Atlantic Ocean
Autores: | Avigliano,Esteban; Saez,Margarita B.; Rico,Rita; Volpedo,Alejandra V.
Data: | 2015-03-01
Ano: | 2015
Palavras-chave: | Argentina; Brazilian flathead; Fish stock; Microchemistry; Percophidae.
Resumo: | We evaluate the simultaneous use of Sr: Ca and Zn: Ca ratios of the sagitta otolith as a potential indicator of the habitat of Percophis brasiliensis along a latitudinal gradient in the southwestern Atlantic Ocean (34-42ºS and 51-67ºW), in order to reliably identify fish stocks. Fish were collected in three sampling sites: Argentine-Uruguayan Common Fishing Zone (AUCFZ), El Rincón (ER) and San Matías Gulf (SMG). The otolith Sr:Ca and Zn:Ca ratios were determined by ICP-OES and EDTA volumetric method. The otolith Sr:Ca ratio was similar in the three sampling sites, while the Zn:Ca ratio was significantly higher in AUCFZ than in ER and SMG for all age groups. The discriminant analysis showed an association between the otolith Sr:Ca and Zn:Ca ratios from ER and SMG. Present results suggest the potential occurrence of two fish stocks of P. brasiliensis in the study area.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100187
Editor: | Sociedade Brasileira de Ictiologia
Relação: | 10.1590/1982-0224-20130235
Formato: | text/html
Fonte: | Neotropical Ichthyology  v.13 n.1 2015
Fonte: | info:eu-repo/semantics/openAccess