Observations on the occurrence of Hematodinium sp. (Dinoflagellata: Syndinidae) , the causative agent of bitter crab disease in Newfoundland snow crab (Chionoecetes opilio)

Taylor, D.M.; Khan, R.A.

Journal of Invertebrate Pathology 65(3): 283-288

1995


ISSN/ISBN: 0022-2011
DOI: 10.1006/jipa.1995.1043
Accession: 002663999

Download citation:  
Text
  |  
BibTeX
  |  
RIS

Article/Abstract emailed within 0-6 h
Payments are secure & encrypted
Powered by Stripe
Powered by PayPal

Abstract
We describe the first occurrence in Atlantic anada waters of "bitter crab disease" in the snow crab, Chionoecetes opilio. The condition is caused by a parasitic dinoflagellate, Hematodinium sp. Male crabs held in captivity harbored vegetative, prespore, and dinospore stages. Incidence of the disease was low (= lt 0.11%) off the eastern and northeastern coasts of Newfoundland in 1992-1993, except in Conception Bay, where 3.7% of 135 crabs examined were infected. The significance of Hematodinium sp. to snow crab populations in Newfoundland and to the commercial fishery is not yet clear, but it is prudent to monitor this parasite which has caused local depletion of Tanner crab populations in Alaska.

Observations on the occurrence of Hematodinium sp. (Dinoflagellata: Syndinidae), the causative agent of bitter crab disease in Newfoundland snow crab (Chionoecetes opilio)