Bopyrus squillarum is an isopod parasite of the infraorder Epicaridea. As such, B. squillarum is an ectoparasite, feeding off crustaceans hemolymph.[1] This parasite is specific to common prawns (Palaemon serratus), but can rarely be found on other species of the genus Palaemon such as P. elegans.[2]

Bopyrus squillarum
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Malacostraca
Order: Isopoda
Family: Bopyridae
Genus: Bopyrus
Species:
B. squillarum
Binomial name
Bopyrus squillarum
Latreille, 1802

Distribution

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Bopyrus squillarum can be found in marine habitats all along the northeast Atlantic coast as well as the north sea.[2][3] The number of B. squillarum infections seem to vary over the years, as studies have shown infection rates ranging from 6.4% to 20.1% between 1969 and 2014 along the Irish coast.[4]

Biology

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During its planktonic larval stage, the young B. squillarum attaches to a young P. serratus and settles down in its branchial chamber. As the parasite and the prawn grow up, the parasite creates a bulge in the prawns carapace.[2] The female B. squillarum is much bigger than the male and is the parasite that attaches to the host. The smaller male will attach itself to a female to breed.[2] While present, B. squillarum will lead to a reduction in its hosts gonads and prevent the host's reproduction.[2][4] The B. squillarum parasite has a shorter lifespan than its host, falling out of the branchial chamber of the prawn upon death.[2][4]

References

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  1. ^ Rohde, K. 2005. Marine Parasitology. Edited By K. Rohde. CSIRO Publishing
  2. ^ a b c d e f DeBhaldraithe, P. 1972. Notes on the Occurrence of the Isopod Parasite Bopyrus squillarum Latreille. Irish Naturalists Journal 17(8): 276–279.
  3. ^ "Bopyrus squillarum". www.sealifebase.ca.
  4. ^ a b c Quigley, D.T., and Rafferty, J. 2015. The occurrence of the parasitic Isopod Bopyrus squillarum Latreille, 1802 on the Common Shrimp (Palaemon serratus (Pennant)) in Irish waters. Irish Naturalists' Journal 34(2): 131–132.