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Some observations on the infestation of bivalve,Scapharca natalensis,by larval nemetode,Echinocephalus (Nematoda: Gnathostomatidae)
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نویسنده
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moazzam m. ,moazzam n.
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منبع
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pakistan journal of zoology - 2014 - دوره : 46 - شماره : 5 - صفحه:1455 -1458
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چکیده
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Larvae of echinocephalus was reported from arkshell scapharca natalensis from clifton beach,karachi infesting either foot,alimentary canal wall and genital duct. all the specimens of the host collected during october,1978 were observed to be infested. about 37% of the specimens of scapharca natalensis were observed to be infested with by 1 larval echinocephalus per host while 11% were infested with 2 larvae per host. only 8% of the specimens were infested by 3 larvae and 3 % by 4 larvae per host. no apparent ill effect of the parasite on host was noticed. © 2014 zoological society of pakistan.
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کلیدواژه
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Arkshell; Bivalve; Echinocephalus; Host; Larvae; Seasonal distribution
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آدرس
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marine fisheries department,government of pakistan,fish harbour,west-wharf, Pakistan, institute of marine sciences,university of karachi, Pakistan
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Authors
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