Research Report

Pedunculate Barnacle Octolasmis (Cirripedia, Thoracica) on the Gills of Two Species of Portunid Crabs  

Shazia Rasheed1 , Javed Mustaquim2
1 Department of Marine Sciences, Lasbela University of Agriculture, Waters And Marine Sciences, Uthal, Balochistan, Pakistan
2 Centre of Excellence In Marine Biology, University of Karachi, Karachi, Pakistan
Author    Correspondence author
International Journal of Marine Science, 2017, Vol. 7, No. 45   doi: 10.5376/ijms.2017.07.0045
Received: 31 Oct., 2017    Accepted: 24 Nov., 2017    Published: 08 Dec., 2017
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This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Preferred citation for this article:

Rasheed S., and Mustaquim J., 2017, Pedunculate barnacle Octolasmis (Cirripedia, Thoracica) on the gills of two species of portunid crabs, International Journal of Marine Science, 7(45): 432-438 (doi: 10.5376/ijms.2017.07.0045)


Two species of Portunid crabs namely Portunus pelagicus and P. sanguinolentus were examined for the presence of octolasmids which belong to four species; namely Octolasmis angulata (Aurivillius, 1894), O. cor (Aurivillius, 1894), O. lowei (Darwin, 1851), and O. tridens (Aurivillius, 1894). Number of infested P. sanguinolentus was 114 (10.8% of the total P. sanguinolentus) while total number of octolasmids hosted by these crab was 5165. The average number of octolasmids found in the right and left gill chambers was 17.74 ± 37.22 S.D and 16.26 ± 38.85 S.D respectively, which is not different significantly (t = 0.265, α = 0.05). In P. pelagicus, 188 octolasmids were found in the gill chambers of 48 infested crabs. The average number of octolasmids found in the right and left branchial chambers was 2.38 ± 3.1 S.D and 1.54 ± 2.0 S.D, respectively, which is not significantly different (t = 1.48; α = 0.05).

Barnacles; Octolasmis; Portunid crab; Cirripedia; Brachial chamber
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International Journal of Marine Science
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