Skip to main content
Article thumbnail
Location of Repository

Biology and distribution of South Georgia icefish (Pseudochaenichthys georgianus) around South Georgia and Shag Rocks

By S. Clarke, W.D.K. Reid, M.A. Collins and M. Belchier

Abstract

Pseudochaenichthys georgianus is a member of the unique Channichthyidae family of fishes, which lack haemoglobin. The distribution, length-frequency and summer diet are described from 14 bottom trawl surveys undertaken in the summers between 1986 and 2006. Pseudochaenichthys georgianus (50-590 mm TL) were caught throughout the South Georgia shelf from depths of 76-370 m, but very few specimens (< 1%) were caught on the Shag Rocks shelf. Multiple cohorts were present during each survey and length-frequency analysis of these cohorts suggests that growth is fast during the first 3-4 years. Stomach contents analysis (2005 & 2006) indicated that P. georgianus is a pelagic or semi pelagic predator, with the summer diet dominated by Antarctic krill (Euphausia superba). Fish (channichthyids and notothenids) were also taken, but were a relatively minor part of the diet

Topics: Marine Sciences, Biology and Microbiology
Publisher: CAMBRIDGE UNIV PRESS
Year: 2008
DOI identifier: 10.1017/S0954102008000990
OAI identifier: oai:nora.nerc.ac.uk:10209
Download PDF:
Sorry, we are unable to provide the full text but you may find it at the following location(s):
  • https://doi.org/10.1017/S09541... (external link)
  • https://doi.org/10.1017/S09541... (external link)
  • http://nora.nerc.ac.uk/id/epri... (external link)
  • Suggested articles


    To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.