Structure of symbiotic assemblages on red king crabs in the coastal Barents Sea in 2012
https://doi.org/10.36038/2307-3497-2018-172-160-171
Abstract
The study of the community of organisms associated with the red king crab was undertaken in Dalnezelenetskaya Bay (Barents Sea) in July 2012. A total of 44 taxa of associated species were found on crabs. The total prevalence of infestation was 84,5%. The frequency occurrence of attached animals was relatively low. The highest levels were found for bryozoans and gastropods (5,1%). Among mobile organisms the amphipods Ischyrocerus commensalis (84,5%), the harpacticoid copepods Tisbe furcate (74,1%) and Harpacticus uniremis (29%) were the most abundant. In addition, relatively high prevalence was registered for the fish leech Johanssonia arctica (22,4%). The comparison of prevalence data of 2012 with the levels of 2011 revealed significant differences in case of the polynoid polychaetes Harmothoe imbricata which were more abundant in 2012 and for the amphipods Ischyrocerus anguipes which were more abundant in 2011. The prevalence of symbionts in large crabs were 2,5 times higher than in immature crabs. Similar pattern was found for the total number of associated species per one crab. Localization patterns of common species were studied.
About the Authors
A. G. DvoretskyRussian Federation
Murmansk
V. G. Dvoretsky
Russian Federation
Murmansk
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Review
For citations:
Dvoretsky A.G., Dvoretsky V.G. Structure of symbiotic assemblages on red king crabs in the coastal Barents Sea in 2012. Trudy VNIRO. 2018;172:160-171. (In Russ.) https://doi.org/10.36038/2307-3497-2018-172-160-171