Ecology and population dynamics of Antarctic Ophiuroids (Echinodermata)

The present study aims at the investigation of ecology and population dynamics of Antarctic ophiuroids. Samples were taken on 7 'Polarstern' expeditions to the eastern Weddell Sea and the adjacent Lazarev Sea between 1983 and 1992. The investigation area was separated into four regions (Ka...

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Bibliographic Details
Main Authors: Dahm, C., Alfred-Wegener-Institut fuer Polar- und Meeresforschung, Bremerhaven (Germany)
Other Authors: Bremen Univ. (Germany). Fachbereich 2 - Biologie/Chemie
Format: Other/Unknown Material
Language:German
Published: 1996
Subjects:
Online Access:http://hdl.handle.net/10068/241140
Description
Summary:The present study aims at the investigation of ecology and population dynamics of Antarctic ophiuroids. Samples were taken on 7 'Polarstern' expeditions to the eastern Weddell Sea and the adjacent Lazarev Sea between 1983 and 1992. The investigation area was separated into four regions (Kapp Norvegia, Halley Bay, Filchner Roenne and Vahsel Bight) and three depths (<500 m, 501-1000 m, >1000 m) to compare abundance, biomass, food and growth of the brittle stars. The basis of this study was the taxonomical analysis of the samples. 41 species belonging to 20 genera and 6 families were identified. Five of the most dominant and conspicuous species were selected for further investigation: Astrotoma agassizii, Ophionotus victoriae, Ophiurolepis gelida, Ophiurolepis brevirima and Ophioceres incipiens. (orig.) SIGLE Available from TIB Hannover: RN 9219(194) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische Informationsbibliothek DE Germany