Food habits of the yellow snapper Lutjanus argentiventris (Peters, 1869) (Percoidei: Lutjanidae) in La Paz Bay, Mexico
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| Format: | Artículo científico |
| Langue: | en |
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Universidad de Valparaíso
2008
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| _version_ | 1876433751746019328 |
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| author | Rosa I. Vázquez |
| author_facet | Rosa I. Vázquez |
| contents | Food habits of the yellow snapper Lutjanus argentiventris (Peters, 1869) (Percoidei: Lutjanidae) in La Paz Bay, Mexico Rosa I. Vázquez Leonardo A. Abitia Jesús Rodríguez Felipe Galván Ciencias de la Tierra main prey Yellow snapper trophic habits Gulf of California A total of 304 yellow snapper Lutjanus argentiventris stomachs were sampled bimonthly from April 2003 to April 2004, of which 44% contained food. We identified 54 prey species. From the index of relative importance (IRI), fish eggs (62%), Harengula thrissina (23%), Porichthys margaritatus (3.3%), and Abudefduf troschelii (2.3%) were the prey of greatest importance in its trophic spectrum. In juvenile snappers, the most important preys were unidentified organic matter (32%), the crustacean Upogebia pugettensis (29%), penaeid shrimp (6.5%), and fish eggs (5.2%). The Levin index determined that the diet breadth was low ( B i =0.0002), indicating that it is a specialist predator showing preference for fish eggs and H. thrissina . The same result was found in males ( Bi =0.0002) and females ( Bi = 0.0009). Although juveniles also showed a low trophic breadth, they preferred unidentified organic matter and U. pugettensis . The Morisita-Horn index showed considerable overlap in diet between genders ( C λ >0.6), though diet overlap was low between juveniles and adults ( C λ <0.2) reflecting feeding habitat differences between them. 2008 artículo científico 0717-3326 https://www.redalyc.org/articulo.oa?id=47943207 en http://www.redalyc.org/revista.oa?id=479 Revista de Biología Marina y Oceanografía application/pdf Universidad de Valparaíso Revista de Biología Marina y Oceanografía (Chile) Num.2 Vol.43 |
| format | Artículo científico |
| id | redalyc_47943207 |
| institution | Redalyc |
| language | en |
| publishDate | 2008 |
| publisher | Universidad de Valparaíso |
| spellingShingle | Food habits of the yellow snapper Lutjanus argentiventris (Peters, 1869) (Percoidei: Lutjanidae) in La Paz Bay, Mexico Rosa I. Vázquez Ciencias de la Tierra main prey Yellow snapper trophic habits Gulf of California Food habits of the yellow snapper Lutjanus argentiventris (Peters, 1869) (Percoidei: Lutjanidae) in La Paz Bay, Mexico Rosa I. Vázquez Leonardo A. Abitia Jesús Rodríguez Felipe Galván Ciencias de la Tierra main prey Yellow snapper trophic habits Gulf of California A total of 304 yellow snapper Lutjanus argentiventris stomachs were sampled bimonthly from April 2003 to April 2004, of which 44% contained food. We identified 54 prey species. From the index of relative importance (IRI), fish eggs (62%), Harengula thrissina (23%), Porichthys margaritatus (3.3%), and Abudefduf troschelii (2.3%) were the prey of greatest importance in its trophic spectrum. In juvenile snappers, the most important preys were unidentified organic matter (32%), the crustacean Upogebia pugettensis (29%), penaeid shrimp (6.5%), and fish eggs (5.2%). The Levin index determined that the diet breadth was low ( B i =0.0002), indicating that it is a specialist predator showing preference for fish eggs and H. thrissina . The same result was found in males ( Bi =0.0002) and females ( Bi = 0.0009). Although juveniles also showed a low trophic breadth, they preferred unidentified organic matter and U. pugettensis . The Morisita-Horn index showed considerable overlap in diet between genders ( C λ >0.6), though diet overlap was low between juveniles and adults ( C λ <0.2) reflecting feeding habitat differences between them. 2008 artículo científico 0717-3326 https://www.redalyc.org/articulo.oa?id=47943207 en http://www.redalyc.org/revista.oa?id=479 Revista de Biología Marina y Oceanografía application/pdf Universidad de Valparaíso Revista de Biología Marina y Oceanografía (Chile) Num.2 Vol.43 |
| title | Food habits of the yellow snapper Lutjanus argentiventris (Peters, 1869) (Percoidei: Lutjanidae) in La Paz Bay, Mexico |
| topic | Ciencias de la Tierra main prey Yellow snapper trophic habits Gulf of California |
| url | https://www.redalyc.org/articulo.oa?id=47943207 |