The diet of Ophiosparte gigas (Echinodermata: Ophiuroidea) along the Antarctic Peninsula, with comments on its taxonomic status

J. H.Dearborn; G.Hendler; K. C.Edwards

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The diet of Ophiosparte gigas (Echinodermata: Ophiuroidea) along the Antarctic Peninsula, with comments on its taxonomic status

机译：The diet of Ophiosparte gigas (Echinodermata: Ophiuroidea) along the Antarctic Peninsula, with comments on its taxonomic status

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Analyses of stomach contents of 121 adultOphiosparte gigasKoehler 1922, collected along the western coast of the Antarctic Peninsula in 1981–1983, show that this species is an active predator and scavenger whose diet consists of representatives of at least 10 phyla. The top five prey groups are sponges, ophiuroids, bivalves, polychaetes and crustaceans by percentage frequency of occurrence, and ophiuroids, bivalves, polychaetes, amphipods and sponges by fullness relative volume. Rankings of prey by various frequency and volume measures vary among different sites suggesting thatOphiosparte gigasis an opportunistic feeder. Significant differences in diet, feeding behavior and morphological characteristics related to feeding, and others, including composition of the integument and structure of the oral and dental plates, show the conventional placement of the monotypic genusOphiospartein the Ophiacanthidae is not justified. We suggest placement in the Ophiomyxidae but formal designation within a subfamily must await a thorough revision of the suborder Ophiomyx

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《polar biology》 |1996年第5期|309-320|共页
作者
J. H.Dearborn; G.Hendler; K. C.Edwards;
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Department of Zoology, University of Maine, Orono, ME 04469, USA;

Invertebrate Zoology Section, Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA;

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The diet of Ophiosparte gigas (Echinodermata: Ophiuroidea) along the Antarctic Peninsula, with comments on its taxonomic status

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