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Sicyases sanguineus: A Unique Trophic Generalist from the Chilean Intertidal Zone

R. T. Paine and A. R. Palmer
Copeia
Vol. 1978, No. 1 (Feb. 10, 1978), pp. 75-81
DOI: 10.2307/1443824
Stable URL: http://www.jstor.org/stable/1443824
Page Count: 7
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Sicyases sanguineus: A Unique Trophic Generalist from the Chilean Intertidal Zone
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Abstract

Stomach analyses of Sicyases, an amphibious marine clingfish, collected at Iquique and the Montemar region, Chile, indicate an extremely broad diet. Individual fish usually had been eating one prey type immediately prior to capture. However, there was wide within-sample variation: major prey categories include 3 plant and 3 animal phyla. Analyses indicate that the prey are obtained throughout the intertidal zone. Intertidal and shallow-subtidal prey are digested in middle to upper intertidal areas. The fish is characteristic of vertical rock walls in areas of great surf action. Its niche is unique, with no known parallel development in other rocky intertidal communities.

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