Food habits of the yellow snapper Lutjanus argentiventris (Peters, 1869) (Percoidei: Lutjanidae) in La Paz Bay, Mexico

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%), an...

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Autores principales:	Vázquez,Rosa I, Rodríguez,Jesús, Abitia,Leonardo A, Galván,Felipe
Lenguaje:	English
Publicado:	Universidad de Valparaíso. Facultad de Ciencias del Mar 2008
Materias:	Yellow snapper trophic habits main prey Gulf of California
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572008000200008
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spelling	oai:scielo:S0718-195720080002000082009-01-27Food habits of the yellow snapper Lutjanus argentiventris (Peters, 1869) (Percoidei: Lutjanidae) in La Paz Bay, MexicoVázquez,Rosa IRodríguez,JesúsAbitia,Leonardo AGalván,Felipe Yellow snapper trophic habits main prey 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 (Bi=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 (Cλ>0.6), though diet overlap was low between juveniles and adults (Cλ<0.2) reflecting feeding habitat differences between them.info:eu-repo/semantics/openAccessUniversidad de Valparaíso. Facultad de Ciencias del MarRevista de biología marina y oceanografía v.43 n.2 20082008-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572008000200008en10.4067/S0718-19572008000200008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Yellow snapper trophic habits main prey Gulf of California
spellingShingle	Yellow snapper trophic habits main prey Gulf of California Vázquez,Rosa I Rodríguez,Jesús Abitia,Leonardo A Galván,Felipe Food habits of the yellow snapper Lutjanus argentiventris (Peters, 1869) (Percoidei: Lutjanidae) in La Paz Bay, Mexico
description	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 (Bi=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 (Cλ>0.6), though diet overlap was low between juveniles and adults (Cλ<0.2) reflecting feeding habitat differences between them.
author	Vázquez,Rosa I Rodríguez,Jesús Abitia,Leonardo A Galván,Felipe
author_facet	Vázquez,Rosa I Rodríguez,Jesús Abitia,Leonardo A Galván,Felipe
author_sort	Vázquez,Rosa I
title	Food habits of the yellow snapper Lutjanus argentiventris (Peters, 1869) (Percoidei: Lutjanidae) in La Paz Bay, Mexico
title_short	Food habits of the yellow snapper Lutjanus argentiventris (Peters, 1869) (Percoidei: Lutjanidae) in La Paz Bay, Mexico
title_full	Food habits of the yellow snapper Lutjanus argentiventris (Peters, 1869) (Percoidei: Lutjanidae) in La Paz Bay, Mexico
title_fullStr	Food habits of the yellow snapper Lutjanus argentiventris (Peters, 1869) (Percoidei: Lutjanidae) in La Paz Bay, Mexico
title_full_unstemmed	Food habits of the yellow snapper Lutjanus argentiventris (Peters, 1869) (Percoidei: Lutjanidae) in La Paz Bay, Mexico
title_sort	food habits of the yellow snapper lutjanus argentiventris (peters, 1869) (percoidei: lutjanidae) in la paz bay, mexico
publisher	Universidad de Valparaíso. Facultad de Ciencias del Mar
publishDate	2008
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-19572008000200008
work_keys_str_mv	AT vazquezrosai foodhabitsoftheyellowsnapperlutjanusargentiventrispeters1869percoideilutjanidaeinlapazbaymexico AT rodriguezjesus foodhabitsoftheyellowsnapperlutjanusargentiventrispeters1869percoideilutjanidaeinlapazbaymexico AT abitialeonardoa foodhabitsoftheyellowsnapperlutjanusargentiventrispeters1869percoideilutjanidaeinlapazbaymexico AT galvanfelipe foodhabitsoftheyellowsnapperlutjanusargentiventrispeters1869percoideilutjanidaeinlapazbaymexico
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Food habits of the yellow snapper Lutjanus argentiventris (Peters, 1869) (Percoidei: Lutjanidae) in La Paz Bay, Mexico

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