Observations o parasitism by Thalassomyces fagei on three euphausiid species in Southern Atlantic waters
Average rating
Cast your vote
You can rate an item by clicking the amount of stars they wish to award to this item.
When enough users have cast their vote on this item, the average rating will also be shown.
Star rating
Your vote was cast
Thank you for your feedback
Thank you for your feedback
Date
1989
Metadatos
Mostrar el registro completo del ítemAbstract
The inhibiting effects of the parasite Thalassomycesfagei (Ellobiopsidae, Dinophyceae) on gonadic development in euphausiids have already been reported by several authors. Such castrative action reaches significant proportions in these crustaceans, which are important components in the diet of many commercially exploited fishes. In the present work, 2641 furciliae, post-larvae and adults of Euphausia lucens, E. vallentini and Thysanoessagregaria were examined. The samples were taken in Southern Atlantic waters by RjV "Walther Herwing" and "Shinkai Maru" between May 1978 and February 1979. Increasing incidence of parasitism was found at the end of winter and beginning of spring, the most commonly affected species being E. vallentini (9.9% of the total). Some reduction of secondary sexual characters was typically associated, though its extent was not constantJournal
Oceanologica ActaVolume
12Issue/Article Nr
1Page Range
pp.95-97Colecciones