Selectividad del alimento en dos peces bentofagos (Mugiloides chilensis y Calliclinus geniguttatus)

Moreno, Carlos A.; Zamorano, Juan H.

doi:10.1590/S0373-55241980000200051

Resumen

Prey electivity of two littoral fishes that belong to intermedial links of the trophic sub-web of the trophic sub-web of Caleta San Carlos, Corral bay is studied. Stomach content has been analyzed by mean of the numerical method and prey abundance in the environment has been evaluated with 0.1 m² samples, taken with SCUBA techniques. For each prey that's consumed by these fishes, Ivlev's electivity index was fitted; besides that, the correlation between food availability and the amount that is consumed by each of these predators was established. The results have been interpreted according to the behaviour of these fishes in relation to the top predator of the community. The results suggest that electivity has a component that's induced by the adaptive responde of these fishes with the top predator.

ARTIGOS

Selectividad del alimento en dos peces bentofagos (Mugiloides chilensis y Calliclinus geniguttatus)

Carlos A. Moreno; Juan H. Zamorano

Instituto de Ecología y Evolución, Universidad Austral de Chile, Valdivia, Chile

SYNOPSIS

Prey electivity of two littoral fishes that belong to intermedial links of the trophic sub-web of the trophic sub-web of Caleta San Carlos, Corral bay is studied. Stomach content has been analyzed by mean of the numerical method and prey abundance in the environment has been evaluated with 0.1 m² samples, taken with SCUBA techniques. For each prey that's consumed by these fishes, Ivlev's electivity index was fitted; besides that, the correlation between food availability and the amount that is consumed by each of these predators was established. The results have been interpreted according to the behaviour of these fishes in relation to the top predator of the community. The results suggest that electivity has a component that's induced by the adaptive responde of these fishes with the top predator.

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Agradecimientos

Los autores agradecen a la Dirección de Investigación de la Universidad Austral de Chile por el finaneiamiento de esta contribución (Proyecto RS-77-34); a la División de Ciencias Marinas de UNESCO su ayuda bibliográfica (SC/RP 550-551) y finalmente a la oficina regional latinoamericana del PNUMA quién contribuyo para que este trabajo fuese presentado en el V Simposio Latinoamericano sobre Oceanografia Biológica.

ALEYEV, Y.G. 1977. Nekton. The Hague, Dr. W. Junk, 435p.
BAHAMONDE, N. 1950. Alimentación del rollizo (Pinguipes chilensis, Molina 1782). Investnes zool. chil., 1(2):13-14.
BROOKS, J.L. & DODSON, S.I. 1965. Predation, body size and composition of plankton. Science, 150:8-35.
CURIO, E. 1976. The ethology of predation. Berlin, Springer-Verlag, 250p.
DODSON, S.I, 1970. Complementary feeding niches sustained by selective predation. Limnol. Oceanogr., 15:131-137.
IVLEV, V.S. 1961. Experimental ecology of the feeding of fishes. New Haven, Yale University Press, 302p.
JARA, H.F. & MORENO, C.A. 1978. Alimentación selectiva por tamaños en la predictabilidad de las tramas tróficas: un ejemplo en peces intermareales sudpatágonicos. Medio Ambiente (Chile), 4(1). (En prensa).
KLEEREKOPER, H.; TIMMS, A.M.; WESTLAKE, G.F.; DAVY, F.B.; MALAR, T. & ANDERSON, V.M. 1970. An analysis of locomotor behaviour of goldfish (Carassius auratus). Anim. Behav., 18:317-330.
MOORE, J.W. & MOORE, LA. 1976. The basis of food selection in some estuarine fishes. Eels, Anguilla amguilla L., whiting, Merlangius merlangus (L.), sprat, Sprattus sprattus (L.) and stickleback, Gasterosteus aculeatus L. J. Fish Biol., 9:375-390.
MORENO, C.A. 1978. A reproductive relationship between Trematomus bernacchii and Rosella nuda: its effects on the food habits of this antarctic fish. Copeia. (En prensa).
MORENO, C.A. & CASTILLA, J.C. 1977. Guía para el reconocimiento y observación de peces de Chile. Ed. Gabriela Mistral. Serie Expedición a Chile, 120p.
______; DUARTE, W.E. & ZAMORANO, J.H. 1977. Variación latitudinal del número de especies de peces en el sublitoral rocoso: una explicación ecológica, Comun. Soc. : Biol. de Chile, XX R. Anual:
______ & OSORIO, H.H. 1977. Bathymetric food habitat changes in the antarctic fish Notothenia gibberifrons Lonnberg (Pisces: Nototheniidae) . Hydrobiologia, 55(2):139-144.
PAINE, R.T. 1966. Food web complexity and species diversity. Am. Nat., 100(910):65-75.
______ & PALMER, A.R. 1978. Sicyases sanguineus: a unique trophic generalist from the Chilean intertidal zone. Copeia,(1):75-81.
ROHLF, F.J. & SOKAL, R.R. 1969. Statistical tables. San Francisco, W. H. Freeman, 253p.
SCHOENER, T.W. 1971. Theory of feeding strategies. A. Rev. Ecol. Syst., 2:369-404.
SOKAL, R.R. & ROHLF, F.J. 1969. Biometry. San Francisco, W.H. Freeman, 776p.
ZAMORANO, J.H. & MORENO, C.A. 1975. Comunidades bentónicas del sublitoral rocoso de Bahía de Corral. I. Area mínima de muestreo y descripción cuantitativa de la asociación de Pyura chilensis Molina Medio Ambiente (Chile), 1(1):58-66.

Fechas de Publicación

Publicación en esta colección
06 Jun 2012
Fecha del número
1980

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[1] ALEYEV, Y.G. 1977. Nekton. The Hague, Dr. W. Junk, 435p.

[2] BAHAMONDE, N. 1950. Alimentación del rollizo (Pinguipes chilensis, Molina 1782). Investnes zool. chil., 1(2):13-14.

[3] BROOKS, J.L. & DODSON, S.I. 1965. Predation, body size and composition of plankton. Science, 150:8-35.

[4] CURIO, E. 1976. The ethology of predation. Berlin, Springer-Verlag, 250p.

[5] DODSON, S.I, 1970. Complementary feeding niches sustained by selective predation. Limnol. Oceanogr., 15:131-137.

[6] IVLEV, V.S. 1961. Experimental ecology of the feeding of fishes. New Haven, Yale University Press, 302p.

[7] JARA, H.F. & MORENO, C.A. 1978. Alimentación selectiva por tamaños en la predictabilidad de las tramas tróficas: un ejemplo en peces intermareales sudpatágonicos. Medio Ambiente (Chile), 4(1). (En prensa).

[8] KLEEREKOPER, H.; TIMMS, A.M.; WESTLAKE, G.F.; DAVY, F.B.; MALAR, T. & ANDERSON, V.M. 1970. An analysis of locomotor behaviour of goldfish (Carassius auratus). Anim. Behav., 18:317-330.

[9] MOORE, J.W. & MOORE, LA. 1976. The basis of food selection in some estuarine fishes. Eels, Anguilla amguilla L., whiting, Merlangius merlangus (L.), sprat, Sprattus sprattus (L.) and stickleback, Gasterosteus aculeatus L. J. Fish Biol., 9:375-390.

[10] MORENO, C.A. 1978. A reproductive relationship between Trematomus bernacchii and Rosella nuda: its effects on the food habits of this antarctic fish. Copeia. (En prensa).

[11] MORENO, C.A. & CASTILLA, J.C. 1977. Guía para el reconocimiento y observación de peces de Chile. Ed. Gabriela Mistral. Serie Expedición a Chile, 120p.

[12] ______; DUARTE, W.E. & ZAMORANO, J.H. 1977. Variación latitudinal del número de especies de peces en el sublitoral rocoso: una explicación ecológica, Comun. Soc. : Biol. de Chile, XX R. Anual:

[13] ______ & OSORIO, H.H. 1977. Bathymetric food habitat changes in the antarctic fish Notothenia gibberifrons Lonnberg (Pisces: Nototheniidae) . Hydrobiologia, 55(2):139-144.

[14] PAINE, R.T. 1966. Food web complexity and species diversity. Am. Nat., 100(910):65-75.

[15] ______ & PALMER, A.R. 1978. Sicyases sanguineus: a unique trophic generalist from the Chilean intertidal zone. Copeia,(1):75-81.

[16] ROHLF, F.J. & SOKAL, R.R. 1969. Statistical tables. San Francisco, W. H. Freeman, 253p.

[17] SCHOENER, T.W. 1971. Theory of feeding strategies. A. Rev. Ecol. Syst., 2:369-404.

[18] SOKAL, R.R. & ROHLF, F.J. 1969. Biometry. San Francisco, W.H. Freeman, 776p.

[19] ZAMORANO, J.H. & MORENO, C.A. 1975. Comunidades bentónicas del sublitoral rocoso de Bahía de Corral. I. Area mínima de muestreo y descripción cuantitativa de la asociación de Pyura chilensis Molina Medio Ambiente (Chile), 1(1):58-66.

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Selectividad del alimento en dos peces bentofagos (Mugiloides chilensis y Calliclinus geniguttatus)

Resumen

Fechas de Publicación