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Parasite community similarity between four Irish lakes

Published online by Cambridge University Press:  12 April 2024

C.J. Byrne ,
C. Grey ,
C. Holland  and
R. Poole
C.J. Byrne*
Affiliation:
Department of Zoology, University of Dublin, Trinity College, Dublin 2, Ireland
C. Grey
Affiliation:
Department of Zoology, University of Dublin, Trinity College, Dublin 2, Ireland
C. Holland
Affiliation:
Department of Zoology, University of Dublin, Trinity College, Dublin 2, Ireland
R. Poole
Affiliation:
Salmon Research Agency, Farran Laboratory, Newport, Co. Mayo, Ireland
*
*Fax: +353 1 677 8094 E-mail: cjbyrne@mail.tcd.ie
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Abstract

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A total of 140 trout were examined from four lakes in north west Ireland, Loughs Craghy, Waskel, Meela and Owennamarve. Eleven species of metazoan parasite were recorded, ten of which were of freshwater origin and Anisakissp. was the only marine species. No acanthocephalan species were found. Diphyllobothrium ditremum, D. dendriticum and Anisakissp. were the only allogenic species. Lough Owennamarve had the largest component community with nine species recorded. Lough Meela, the only brackish water lake had the smallest component community with six species recorded. Lough Waskel and Craghy had intermediate component community values. Lough Meela showed the lowest levels of similarity to any of the other lakes. Values for the Shannon-Wiener diversity index were highest for Lough Owennamarve and lowest for Lough Meela and intermediate for the other two lakes. Lough Meela had the highest values for the Simpson's dominance index and the Berger-Parker index. Lough Owennamarve had the highest Brillouin's index and Lough Meela had the lowest. The use of multiple regression techniques to control for the potentially confounding effect of geographical distance as a predictor of community similarity was discussed. No parasite species found could be considered as regionally and locally abundant and therefore described as a core species. The helminth community appears to have some degree of predictability, but chance colonization events are also important.

Type
Research Article
Information
Journal of Helminthology , Volume 74 , Issue 4 , December 2000 , pp. 301 - 305
Copyright
Copyright © Cambridge University Press 2000

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