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Diet of the stauromedusa Haliclystus auricula from southern Chile

Citation

Zagal, CJ, Diet of the stauromedusa Haliclystus auricula from southern Chile, Journal of the Marine Biological Association of the United Kingdom, 84, (2) pp. 337-340. ISSN 0025-3154 (2004) [Refereed Article]

DOI: doi:10.1017/S0025315404009245h

Abstract

The diet of Haliclystus auricula was studied from the gut contents of Stauromedusae collected every two months in southern Chile between November 2001 and November 2002. A total of 3790 medusae were collected and examined. Stauromedusae prey consisted primarily of harpacticoid copepods (68.4%), followed by gammarid amphipods (15.4%), chironomid fly larvae (9.2%) and podocopid ostracods (5.9%). The remaining 1.1% of the diet was made up of empidid fly larvae, polychaete worms, isopods, juvenile decapod crustaceans and gastropods. Gut content was observed in 31% of the stauromedusae collected and only in medusae with an umbrella height greater than 0.4mm. Frequency of medusae with prey items in their gut content increased with stauromedusae size. The type of prey most frequently found in the smallest medusae were copepods, whilst larger individuals contained mainly amphipods. A strong tendency for the length of prey consumed to increase with medusae size was found.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and Estuarine Ecology (incl. Marine Ichthyology)
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Marine Flora, Fauna and Biodiversity
Author:Zagal, CJ (Dr Carolina Zagal)
ID Code:58017
Year Published:2004
Web of Science® Times Cited:9
Deposited By:TAFI - Marine Research Laboratory
Deposited On:2009-09-02
Last Modified:2011-11-17
Downloads:0

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