Pedunculate Barnacle Octolasmis (Cirripedia, Thoracica) on the Gills of Two Species of Portunid Crabs
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
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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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
International Journal of Marine Science
• Volume 7