The distribution and abundance of the nematode Anguillicola australiensis in eels Anguilla reinhardtii in Queensland, Australia
Anguillicola australiensis (Johnston et Mawson, 1940) is widespread and common in Anguilla reinhardtii Steidachner in rivers and dams of eastern Queensland, Australia, having been found in nine out of ten localities. Overall prevalence was 50% and maximum local prevalence reached 77.7%. The parasite...
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ftczechacademysc:oai:kramerius.lib.cas.cz:uuid:48e52cc7-4fe1-4baf-9531-0efa4af1bcff 2024-03-17T08:53:21+00:00 The distribution and abundance of the nematode Anguillicola australiensis in eels Anguilla reinhardtii in Queensland, Australia Kennedy, C.R. 279-285 41-47 print https://kramerius.lib.cas.cz/view/uuid:48e52cc7-4fe1-4baf-9531-0efa4af1bcff eng eng https://kramerius.lib.cas.cz/view/uuid:48e52cc7-4fe1-4baf-9531-0efa4af1bcff urnnbn:urn:nbn:cz:aba007-000dit policy:public Anguillicola australiensis Anguilla reinhardtii ecology distribution population biology transmission pathology Australia model:internalpart ftczechacademysc 2024-02-19T23:09:40Z Anguillicola australiensis (Johnston et Mawson, 1940) is widespread and common in Anguilla reinhardtii Steidachner in rivers and dams of eastern Queensland, Australia, having been found in nine out of ten localities. Overall prevalence was 50% and maximum local prevalence reached 77.7%. The parasite never attained high levels of abundance and maximum adult abundance never exceeded 3.22 or intensity 10. Adults were overdispersed throughout the eel populations and abundance was unrelated to eel or swimbladder size. The greater part of the adult population was composed of immature parasites. The occurrence of larvae in the swimbladder wall was erratic and unrelated to the size of the adult population. Larvae were never abundant and the great majority were damaged by a host response. It appears that parasites either pass through the swimbladder wall rapidly and moult to adults or if delayed are destroyed. There was no indication that a paratenic host was involved in the life cycle. There was no evidence that adult parasites had any local pathogenic effects on their hosts. The population biology of Anguillicola australiensis in its natural host Anguilla reinhardtii appears to be far more similar to those of other Pacific species of Anguillicola in Anguilla japonica in China and Japan than to A. crassus in Anguilla anguilla in Europe or Japan. This latter host-parasite combination appears to be the exception not the rule. It is suggested that the lack of pathogenicity of A. australiensis may reflect a long period of host-parasite co-evolution and/or lower transmission rates resulting in lower parasite population densities. Other/Unknown Material Anguilla anguilla Czech Academy of Sciences: dKNAV Pacific Queensland |
institution |
Open Polar |
collection |
Czech Academy of Sciences: dKNAV |
op_collection_id |
ftczechacademysc |
language |
English |
topic |
Anguillicola australiensis Anguilla reinhardtii ecology distribution population biology transmission pathology Australia |
spellingShingle |
Anguillicola australiensis Anguilla reinhardtii ecology distribution population biology transmission pathology Australia Kennedy, C.R. The distribution and abundance of the nematode Anguillicola australiensis in eels Anguilla reinhardtii in Queensland, Australia |
topic_facet |
Anguillicola australiensis Anguilla reinhardtii ecology distribution population biology transmission pathology Australia |
description |
Anguillicola australiensis (Johnston et Mawson, 1940) is widespread and common in Anguilla reinhardtii Steidachner in rivers and dams of eastern Queensland, Australia, having been found in nine out of ten localities. Overall prevalence was 50% and maximum local prevalence reached 77.7%. The parasite never attained high levels of abundance and maximum adult abundance never exceeded 3.22 or intensity 10. Adults were overdispersed throughout the eel populations and abundance was unrelated to eel or swimbladder size. The greater part of the adult population was composed of immature parasites. The occurrence of larvae in the swimbladder wall was erratic and unrelated to the size of the adult population. Larvae were never abundant and the great majority were damaged by a host response. It appears that parasites either pass through the swimbladder wall rapidly and moult to adults or if delayed are destroyed. There was no indication that a paratenic host was involved in the life cycle. There was no evidence that adult parasites had any local pathogenic effects on their hosts. The population biology of Anguillicola australiensis in its natural host Anguilla reinhardtii appears to be far more similar to those of other Pacific species of Anguillicola in Anguilla japonica in China and Japan than to A. crassus in Anguilla anguilla in Europe or Japan. This latter host-parasite combination appears to be the exception not the rule. It is suggested that the lack of pathogenicity of A. australiensis may reflect a long period of host-parasite co-evolution and/or lower transmission rates resulting in lower parasite population densities. |
format |
Other/Unknown Material |
author |
Kennedy, C.R. |
author_facet |
Kennedy, C.R. |
author_sort |
Kennedy, C.R. |
title |
The distribution and abundance of the nematode Anguillicola australiensis in eels Anguilla reinhardtii in Queensland, Australia |
title_short |
The distribution and abundance of the nematode Anguillicola australiensis in eels Anguilla reinhardtii in Queensland, Australia |
title_full |
The distribution and abundance of the nematode Anguillicola australiensis in eels Anguilla reinhardtii in Queensland, Australia |
title_fullStr |
The distribution and abundance of the nematode Anguillicola australiensis in eels Anguilla reinhardtii in Queensland, Australia |
title_full_unstemmed |
The distribution and abundance of the nematode Anguillicola australiensis in eels Anguilla reinhardtii in Queensland, Australia |
title_sort |
distribution and abundance of the nematode anguillicola australiensis in eels anguilla reinhardtii in queensland, australia |
url |
https://kramerius.lib.cas.cz/view/uuid:48e52cc7-4fe1-4baf-9531-0efa4af1bcff |
op_coverage |
279-285 41-47 |
geographic |
Pacific Queensland |
geographic_facet |
Pacific Queensland |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_relation |
https://kramerius.lib.cas.cz/view/uuid:48e52cc7-4fe1-4baf-9531-0efa4af1bcff urnnbn:urn:nbn:cz:aba007-000dit |
op_rights |
policy:public |
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1793764571095236608 |