Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5765106 | Estuarine, Coastal and Shelf Science | 2017 | 21 Pages |
Abstract
The purpose of this paper is to assess the use of multi-elemental otolith fingerprints as a tool to delimit catfish Genidens barbus fish stocks in four estuaries from the southwestern Atlantic Ocean. Barium:Calcium (Ca), Magnesium:Ca, Manganese:Ca, Sodium:Ca and Strontium:Ca ratios in the otolith edge were determined by LA-ICPMS. PERMANOVA analysis reveal significant differences in the multi-element signatures among estuaries (p = 0.0001-0.002). Reclassification rates of quadratic discriminant analysis are high, averaging 89.9% (78-100%). The new data presented here show that the otolith chemistry is a potential tool for stock identification, and indicates the presence of at least four stocks which should probably be handled independently.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geology
Authors
Esteban Avigliano, Barbara Maichak de Carvalho, Mathieu Leisen, Rurik Romero, Gonzalo Velasco, Marcelo Vianna, Fernando Barra, Alejandra Vanina Volpedo,