Regresar
Resumen del producto
Segura Zarzosa, J.C., L.A., Abitia Cárdenas & F., Galván-Magaña
(1997).
Observaciones sobre la alimentación del tiburón Heterodontus francisci Girard 1854 (Chondrichthyes-Heterodontidae), en la Laguna de San Ignacio, Baja California Sur, México.
Ciencias Marinas.
23(1): 111-128.
Observaciones sobre la alimentación del tiburón Heterodontus francisci Girard 1854 (Chondrichthyes-Heterodontidae), en la Laguna de San Ignacio, Baja California Sur, México
J.C. Segura Zarzosa, Leonardo Andrés Abitia Cárdenas y Felipe Galván-Magaña
A total of 108 stomach contents of horn shark (Heterodontus francisci Girard, 1854) from San Ignacio Lagoon were analyzed. The samples were taken seasonally from January 1992 to February 1993. This species occurred all year round, with low abundance in summer and fall. The index of relative importance (IRI) was used to determine the prey importance. The horn shark feeds mainly on benthic invertebrates, such asgastropods (Lucapinella milleri and Calyptraea spp.), crustaceans (Callinectes bellicosus, Penaeus spp. and isopods), pelecypods (unidentified), sipunculoids (Sipunculus nudus), cephalopods (Octopus spp.), as well as on small fishes (Syngnathus auliscus). This shark is a third-order consumer, because it is a predominantly carnivorous benthic species; it is a selective predator with nocturnal or crepuscular habits.
Palabras clave: Feeding behavior; Fish research; Mexico (Baja California, San Ignacio Lagoon)
Para obtener una copia del documento contacta la personal de la biblioteca a través del correo bibliocicimar{a}ipn.mx
Regresar