New Zealand Journal of Marine and Freshwater Research abstracts

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Feeding ecology of the banded wrasse Notolabrus fucicola (Labridae) in southern New Zealand: prey items, seasonal differences, and ontogenetic variation

CHRISTOPHER M. DENNY^*
DAVID R. SCHIEL

Marine Ecology Research Group
Zoology Department
University of Canterbury
P. O. Box 4800
Christchurch, New Zealand

^*Present address: Leigh Marine Laboratory,  University of Auckland, P. O. Box 349, Warkworth,  New Zealand. email: c.denny@auckland.ac.nz

Abstract  Notolabrus fucicola Richardson, a large common labrid inhabiting shallow waters around New Zealand and southern Australia, were collected monthly (December 1996-February 1998) around Kaikoura on the east coast of the South Island, New Zealand. Their diet, temporal variation in prey and gut fullness, and ontogenetic differences were examined. N. fucicola is a generalist predator, the major prey items being bivalves, amphipods, and crabs, which varied temporally in their diet. There were size specific changes in their diet. Small fish (100-180 mm) ate mostly amphipods and isopods, whereas larger fish (>180 mm) ate mainly bivalves, crabs, and gastropods. There was a temporal variation in gut fullness but no significant difference between sexes.

Keywords  diet; temperate; reef fish

New Zealand Journal of Marine and Freshwater Research, 2001, Vol. 35 M01008
Received 15 January 2001; accepted 13 June 2001

PDF file of entire paper: medium quality (526K); (scanned from paper original: notes about this process)

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