Trophic spectrum of the california kingcroaker menticirrhus undulatus from ojo de liebre lagoon, baja california sur, mexico

Abstract

Recibido en octubre de 1999; aceptado en agosto de 2000 RESUMENSe analizaron los hábitos alimentarios de 112 organismos de la berrugata californiana Menticirrhus undulatus, capturados en la Laguna Ojo de Liebre, Baja California Sur (México), en seis campañas de muestreos bimestrales de enero a noviembre de 1995. La berrugata se capturó en todos los muestreos, con mayor abundancia en el mes de julio. El índice de importancia relativa indicó que M. undulatus consume un total de 14 especies, siendo los poliquetos del género Marphysa spp. (51.75%), el pez Ilypnus gilberti (31.84%) y restos de moluscos (13.91%) las presas dominantes. De acuerdo con el índice de Levin, la berrugata es un depredador carnívoro de conducta especialista, que incide preferentemente sobre la fauna bentónica.Palabras clave: Menticirrhus undulatus, hábitos alimentarios, Reserva de La Biósfera El Vizcaíno, Laguna Ojo de Liebre, México. ABSTRACTA total of 112 stomach contents of the California kingcroaker Menticirrhus undulatus from Ojo de Liebre Lagoon, Baja California Sur (Mexico), were analyzed. The samples were taken from January to November 1995. This species occurred all year round, with highest abundance in July. The index of relative importance indicated that M. undulatus consumed a total of 14 species, and the dominant prey were polychaetes of the genus Marphysa spp. (51.75%), the fish Ilypnus gilberti (31.84%) and mollusk

Feeding habits ofEucinostomus entomelasandMicropogonias megalopsin Las Guasimas lagoon Gulf of California

“…The specialist behaviour of M. megalops has also been reported in other scianids by Bocanegra-Castillo et al . (2000), Giberto et al . (2007) and Cruz-Escalona et al .…”

“…The food components of M. megalops were similar to those reported for the same scianid by Román-Rodríguez (2000), who found crustaceans, molluscs, ophiuroids, polychaetes, fish and unidentified organic material were the most important in this predator's diet. Feeding preference also agrees with that reported for other genera of the family Scianidae such as: Menticirrhus undulatus (Bocanegra-Castillo et al ., 2000) and Cynoscion parvipinnis (Cruz-Escalona et al ., 2010), but it differs from that found for Cynoscion othonopterus (Román-Rodríguez, 2000) and Micropogonias furnieri (Bertrán et al ., 2013); in both predators, clupeiform fish are the preferred prey ( Cetengraulis mistecetus and Engraulis ringens , respectively) .…”