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Animal Sciences Commons

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VIMS Articles

2007

Early Benthic Stages; St-Lawrence; Dinoflagellate Infection; Southern Gulf; Bonne Bay; Bairdi; Prevalence; Maturity; Host; Temperature

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Full-Text Articles in Animal Sciences

Epidemiological Determinants In Outbreaks Of Bitter Crab Disease (Hematodinium Sp.) In Snow Crabs Chionoecetes Opilio From Conception Bay, Newfoundland, Canada, Jeffrey D. Shields, Dm Taylor, Pg O'Keefe, E Colbourne, E Hynick Jan 2007

Epidemiological Determinants In Outbreaks Of Bitter Crab Disease (Hematodinium Sp.) In Snow Crabs Chionoecetes Opilio From Conception Bay, Newfoundland, Canada, Jeffrey D. Shields, Dm Taylor, Pg O'Keefe, E Colbourne, E Hynick

VIMS Articles

Bitter crab disease (BCD) is caused by Hematodinium sp., an endoparasitic dinoflagellate. It lives within the hemocoeloms of snow crabs Chionoecetes opilio and Tanner crabs C. bairdi, making them unmarketable due to their bitter flavor. Two recent outbreaks of BCD have occurred in Conception Bay, Newfoundland, one from 1999 to 2000 and another from 2003 to 2005. In the earlier outbreak, prevalence was highest in juvenile and primiparous females and juvenile males. It was thought to be highest in these hosts because they molt more frequently than larger males and the disease is transmitted to newly molted crabs. In the …