New Zealand Journal of Marine and Freshwater Research abstracts

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Incidence of a pea crab and a trematode in cultivated and natural green-lipped mussels

R. W. HlCKMAN

Fisheries Research Division, Ministry of Agriculture and Fisheries, P.O. Box 19062, Wellington, New Zealand

Abstract The incidence of infection of green-lipped mussels Perna canaliculus with the pea crab Pinnotheres novaezelandiae and the trematode Cercaria haswelli was recorded from seven sites around New Zealand from Ahipara to Marlborough Sounds. Infection rates in 4314 raft-grown and 2642 natural shore-grown mussels were low, ranging from 0.2% to 3.6% for the seven populations. The condition of the mussels was not significantly affected by the infections. In both natural and cultivated mussel populations, mortality caused by these associate organisms will probably be minimal.

N.Z. Journal of Marine and Freshwater Research 12 (2): 211-15. Received 15 June 1977

PDF file of entire paper: medium quality (397K); (scanned from paper original: notes about this process)

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