Use of otolith strontium:calcium and zinc:calcium ratios as an indicator of the habitat of Percophis brasiliensis Quoy & Gaimard, 1825 in the southwestern Atlantic Ocean
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...
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| Format: | Article |
| Language: | English |
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Sociedade Brasileira de Ictiologia
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| Series: | Neotropical Ichthyology |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100187&lng=en&tlng=en |
| _version_ | 1818022387821576192 |
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| author | Esteban Avigliano Margarita B. Saez Rita Rico Alejandra V. Volpedo |
| author_facet | Esteban Avigliano Margarita B. Saez Rita Rico Alejandra V. Volpedo |
| author_sort | Esteban Avigliano |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-14T08:31:55Z |
| format | Article |
| id | doaj.art-0f52a3f3d40242078f40a575300525a0 |
| institution | Directory Open Access Journal |
| issn | 1982-0224 |
| language | English |
| last_indexed | 2024-04-14T08:31:55Z |
| publisher | Sociedade Brasileira de Ictiologia |
| record_format | Article |
| series | Neotropical Ichthyology |
| spelling | doaj.art-0f52a3f3d40242078f40a575300525a02022-12-22T02:03:54ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-022413118719410.1590/1982-0224-20130235S1679-62252015000100187Use of otolith strontium:calcium and zinc:calcium ratios as an indicator of the habitat of Percophis brasiliensis Quoy & Gaimard, 1825 in the southwestern Atlantic OceanEsteban AviglianoMargarita B. SaezRita RicoAlejandra V. VolpedoWe 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100187&lng=en&tlng=enArgentinaBrazilian flatheadFish stockMicrochemistryPercophidae |
| spellingShingle | Esteban Avigliano Margarita B. Saez Rita Rico Alejandra V. Volpedo Use of otolith strontium:calcium and zinc:calcium ratios as an indicator of the habitat of Percophis brasiliensis Quoy & Gaimard, 1825 in the southwestern Atlantic Ocean Neotropical Ichthyology Argentina Brazilian flathead Fish stock Microchemistry Percophidae |
| title | Use of otolith strontium:calcium and zinc:calcium ratios as an indicator of the habitat of Percophis brasiliensis Quoy & Gaimard, 1825 in the southwestern Atlantic Ocean |
| title_full | Use of otolith strontium:calcium and zinc:calcium ratios as an indicator of the habitat of Percophis brasiliensis Quoy & Gaimard, 1825 in the southwestern Atlantic Ocean |
| title_fullStr | Use of otolith strontium:calcium and zinc:calcium ratios as an indicator of the habitat of Percophis brasiliensis Quoy & Gaimard, 1825 in the southwestern Atlantic Ocean |
| title_full_unstemmed | Use of otolith strontium:calcium and zinc:calcium ratios as an indicator of the habitat of Percophis brasiliensis Quoy & Gaimard, 1825 in the southwestern Atlantic Ocean |
| title_short | Use of otolith strontium:calcium and zinc:calcium ratios as an indicator of the habitat of Percophis brasiliensis Quoy & Gaimard, 1825 in the southwestern Atlantic Ocean |
| title_sort | use of otolith strontium calcium and zinc calcium ratios as an indicator of the habitat of percophis brasiliensis quoy gaimard 1825 in the southwestern atlantic ocean |
| topic | Argentina Brazilian flathead Fish stock Microchemistry Percophidae |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000100187&lng=en&tlng=en |
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