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Distribution, growth, diet and foraging behaviour of the yellow-fin notothen (Patagonotothen guntheri) on the Shag Rocks shelf (Southern Ocean)

Doc Number: WG-FSA-07/P3
Auteur(s): M.A. Collins, R. Shreeve, S. Fielding and M. Thurston (J. Fish Biol., 72 (1): 271–286 (2008))
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Abstract: 

The distribution, length-frequency and diet of Patagonotothen guntheri are described from 14 bottom trawl surveys conducted on the Shag Rocks and South Georgia shelves in the austral summers from 1986 to 2006. P. guntheri (80-265 mm LT) were caught on the Shag Rocks shelf from depths of 111 to 470 m, but no specimens were caught on the South Georgia shelf. Multiple cohorts were present during each survey and length-frequency analysis of these cohorts suggests that growth is slow (K=0.133). Evidence from stomach contents and acoustic data (2005 & 2006) show that P. guntheri is primarily a pelagic feeder, migrating from the seafloor towards the surface to feed during daylight. The diet of smaller fish (

This page was last modified on 30 Sep 2011

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