On the ecology of two Rhipidocotyle species (Digenea: Bucephalidae) from two Finnish lakes
The life-cycles of two Rhipidocotyle species and their ecology at different life-cycle stages, especially the host-parasite relationships in the first intermediate host, were studied during 1987-89 in Lake Saravesi, central Finland, and Lake Kuivasjärvi, northern Finland. At the beginning of the stu...
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1992
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Online Access: | http://urn.fi/URN:ISBN:978-951-39-8371-0 |
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ftjyvaeskylaenun:oai:jyx.jyu.fi:123456789/76121 2023-11-12T04:23:17+01:00 On the ecology of two Rhipidocotyle species (Digenea: Bucephalidae) from two Finnish lakes Taskinen, Jouni 1992 application/pdf http://urn.fi/URN:ISBN:978-951-39-8371-0 unknown Biological Research Reports from the University of Jyväskylä Artikkeli I: Taskinen, J., Valtonen, T., & Gibson, D.I. (1991). Studies on bucephalid digeneans parasitising molluscs and fishes in Finland. I. Ecological data and experimental studies. Systematic Parasitology, 19, 81-94. DOI: 10.1007/bf00009906 Artikkeli II: Valtonen, T., Taskinen, J., & Gibson, D.I. (1992). Studies on bucephalid digeneans parasitising molluscs and fishes in Finland. II. The description of Rhipidocotyle fennica n. sp. and its discrimination by principal component analysis. Systematic Parasitology, 23, 67-79. DOI: 10.1007/bf00008011 Artikkeli III: Taskinen, J., Mäkelä, T. & Valtonen, E. T. (1992). Bucephalid digeneans of Anodonta anatina in two Finnish lakes. I. Seasonality of infection and cercarial emergence in relation to the reproduction of the host. Submitted manuscript. Artikkeli IV: Taskinen, J., Valtonen, T., & Mäkelä, T. (1994). Quantity of sporocysts and seasonality of two Rhipidocotyle species (Digenea: Bucephalidae) in Anodonta piscinalis (Mollusca: Bivalvia). International Journal for Parasitology, 24(6), 877-886. DOI: 10.1016/0020-7519(94)90014-0 Artikkeli V: Taskinen, J., & Valtonen, T. (1995). Age-, size- and sex-specific infection of Anodonta piscinalis (Bivalvia, Unionidae) with Rhipidocotyle fennica (Digenea, Bucephalidae) and its influence on host reproduction. Canadian Journal of Zoology, 73, 887-897. DOI: 10.1139/z95-104 978-951-39-8371-0 URN:ISBN:978-951-39-8371-0 http://urn.fi/URN:ISBN:978-951-39-8371-0 openAccess Diss. 1992 ftjyvaeskylaenun 2023-10-18T23:01:54Z The life-cycles of two Rhipidocotyle species and their ecology at different life-cycle stages, especially the host-parasite relationships in the first intermediate host, were studied during 1987-89 in Lake Saravesi, central Finland, and Lake Kuivasjärvi, northern Finland. At the beginning of the study, bucephalid digeneans were found in Rutilus rutilus and adult bucephalids of the genus Rhipidocotyle were found in predatory fishes from Lake Saravesi. However, two bucephalid species, the cercariae of the first having long, filamentous furcae (Type A) and the second having short, stout furcae (Type B), were detected in Anodonta anatina from the lake. Experimental life-cycle studies on the parasites had to be established, in which uninfected roach were infested with a known type of cercaria and the roach were fed to uninfected Esox lucius or Perea fluviatilis. Type B was revealed to be R. campanula (Dujardin, 1845). Type A also belonged to the genus Rhipidocotyle, being a species new to science and was described under name R. fennica Gibson, Taskinen & Valtonen, 1992. Both species used A. anatina as the first intermediate host and R. rutilus as the second intermediate host. The final hosts of R. fennica and R. campanula were E. lucius and P. fluviatilis, respectively. The metacercariae of R. fennica, which mainly occurred encysted in the skin and fins of R. rutilus, could be distinguished by the more psterior position of the pharynx along the body when compared to R. campanula which, on the other hand, mainly occurred encysted in the gills of R. rutilus. Adult R. fennica could be separated from R. campanula e.g. by its smaller egg size and more posterior position of the anterior margin of the vitelline fields. The prevalences of R. fennica and R. campanula in A. anatina from Lake Saravesi (n=l,157) were 33.2 % and 1.0 %, respectively. Pseudanodonta complanata (n=29), Unio tumidus and U. pictorum (n=65) from Lake Saravesi were not infected. The prevalence of R. campanula in A. anatina from Lake Kuivasjärvi ... Doctoral or Postdoctoral Thesis Northern Finland JYX - Jyväskylä University Digital Archive Kuivasjärvi ENVELOPE(25.383,25.383,66.000,66.000) |
institution |
Open Polar |
collection |
JYX - Jyväskylä University Digital Archive |
op_collection_id |
ftjyvaeskylaenun |
language |
unknown |
description |
The life-cycles of two Rhipidocotyle species and their ecology at different life-cycle stages, especially the host-parasite relationships in the first intermediate host, were studied during 1987-89 in Lake Saravesi, central Finland, and Lake Kuivasjärvi, northern Finland. At the beginning of the study, bucephalid digeneans were found in Rutilus rutilus and adult bucephalids of the genus Rhipidocotyle were found in predatory fishes from Lake Saravesi. However, two bucephalid species, the cercariae of the first having long, filamentous furcae (Type A) and the second having short, stout furcae (Type B), were detected in Anodonta anatina from the lake. Experimental life-cycle studies on the parasites had to be established, in which uninfected roach were infested with a known type of cercaria and the roach were fed to uninfected Esox lucius or Perea fluviatilis. Type B was revealed to be R. campanula (Dujardin, 1845). Type A also belonged to the genus Rhipidocotyle, being a species new to science and was described under name R. fennica Gibson, Taskinen & Valtonen, 1992. Both species used A. anatina as the first intermediate host and R. rutilus as the second intermediate host. The final hosts of R. fennica and R. campanula were E. lucius and P. fluviatilis, respectively. The metacercariae of R. fennica, which mainly occurred encysted in the skin and fins of R. rutilus, could be distinguished by the more psterior position of the pharynx along the body when compared to R. campanula which, on the other hand, mainly occurred encysted in the gills of R. rutilus. Adult R. fennica could be separated from R. campanula e.g. by its smaller egg size and more posterior position of the anterior margin of the vitelline fields. The prevalences of R. fennica and R. campanula in A. anatina from Lake Saravesi (n=l,157) were 33.2 % and 1.0 %, respectively. Pseudanodonta complanata (n=29), Unio tumidus and U. pictorum (n=65) from Lake Saravesi were not infected. The prevalence of R. campanula in A. anatina from Lake Kuivasjärvi ... |
format |
Doctoral or Postdoctoral Thesis |
author |
Taskinen, Jouni |
spellingShingle |
Taskinen, Jouni On the ecology of two Rhipidocotyle species (Digenea: Bucephalidae) from two Finnish lakes |
author_facet |
Taskinen, Jouni |
author_sort |
Taskinen, Jouni |
title |
On the ecology of two Rhipidocotyle species (Digenea: Bucephalidae) from two Finnish lakes |
title_short |
On the ecology of two Rhipidocotyle species (Digenea: Bucephalidae) from two Finnish lakes |
title_full |
On the ecology of two Rhipidocotyle species (Digenea: Bucephalidae) from two Finnish lakes |
title_fullStr |
On the ecology of two Rhipidocotyle species (Digenea: Bucephalidae) from two Finnish lakes |
title_full_unstemmed |
On the ecology of two Rhipidocotyle species (Digenea: Bucephalidae) from two Finnish lakes |
title_sort |
on the ecology of two rhipidocotyle species (digenea: bucephalidae) from two finnish lakes |
publishDate |
1992 |
url |
http://urn.fi/URN:ISBN:978-951-39-8371-0 |
long_lat |
ENVELOPE(25.383,25.383,66.000,66.000) |
geographic |
Kuivasjärvi |
geographic_facet |
Kuivasjärvi |
genre |
Northern Finland |
genre_facet |
Northern Finland |
op_relation |
Biological Research Reports from the University of Jyväskylä Artikkeli I: Taskinen, J., Valtonen, T., & Gibson, D.I. (1991). Studies on bucephalid digeneans parasitising molluscs and fishes in Finland. I. Ecological data and experimental studies. Systematic Parasitology, 19, 81-94. DOI: 10.1007/bf00009906 Artikkeli II: Valtonen, T., Taskinen, J., & Gibson, D.I. (1992). Studies on bucephalid digeneans parasitising molluscs and fishes in Finland. II. The description of Rhipidocotyle fennica n. sp. and its discrimination by principal component analysis. Systematic Parasitology, 23, 67-79. DOI: 10.1007/bf00008011 Artikkeli III: Taskinen, J., Mäkelä, T. & Valtonen, E. T. (1992). Bucephalid digeneans of Anodonta anatina in two Finnish lakes. I. Seasonality of infection and cercarial emergence in relation to the reproduction of the host. Submitted manuscript. Artikkeli IV: Taskinen, J., Valtonen, T., & Mäkelä, T. (1994). Quantity of sporocysts and seasonality of two Rhipidocotyle species (Digenea: Bucephalidae) in Anodonta piscinalis (Mollusca: Bivalvia). International Journal for Parasitology, 24(6), 877-886. DOI: 10.1016/0020-7519(94)90014-0 Artikkeli V: Taskinen, J., & Valtonen, T. (1995). Age-, size- and sex-specific infection of Anodonta piscinalis (Bivalvia, Unionidae) with Rhipidocotyle fennica (Digenea, Bucephalidae) and its influence on host reproduction. Canadian Journal of Zoology, 73, 887-897. DOI: 10.1139/z95-104 978-951-39-8371-0 URN:ISBN:978-951-39-8371-0 http://urn.fi/URN:ISBN:978-951-39-8371-0 |
op_rights |
openAccess |
_version_ |
1782338101247475712 |