The distribution and biology of the cestode Eubothrium parvum in capelin, Mallotus villosus, (Pallas) in the Barents Sea, and its use as a biological tag
Samples of Eubothrium parvum were obtained from capelin Mallotus villosus at 55 stations throughout the Barents Sea and from Balsfjord, North Norway. The parasite is distributed widely throughout the Barents Sea, but both incidence and intensity of infection are higher in the regions off Murmansk an...
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crwiley:10.1111/j.1095-8649.1979.tb03585.x 2024-06-02T08:04:04+00:00 The distribution and biology of the cestode Eubothrium parvum in capelin, Mallotus villosus, (Pallas) in the Barents Sea, and its use as a biological tag Kennedy, C. R. 1979 http://dx.doi.org/10.1111/j.1095-8649.1979.tb03585.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1979.tb03585.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1979.tb03585.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 15, issue 2, page 223-236 ISSN 0022-1112 1095-8649 journal-article 1979 crwiley https://doi.org/10.1111/j.1095-8649.1979.tb03585.x 2024-05-03T10:53:36Z Samples of Eubothrium parvum were obtained from capelin Mallotus villosus at 55 stations throughout the Barents Sea and from Balsfjord, North Norway. The parasite is distributed widely throughout the Barents Sea, but both incidence and intensity of infection are higher in the regions off Murmansk and the Kola peninsula, and Spitsbergen. E. parvum exhibits a seasonal peak in maturation and probably also in acquisition of new infections. The incidence of infection is greatest in 1 + fish, whereas the intensity is more independent of host age. It is suggested that the parasite requires only a single intermediate host, a plank‐tonic copepod, and its distribution in relation to age of host is a reflection of the dietary preference shown by young capelin for copepods. The frequency distribution of E. parvum in capelin was over‐dispersed in Balsfjord, where infection levels of between 1 and 28 parasites per fish were encountered in all samples, but under‐dispersed in the Barents Sea, where infections of more than four parasites per fish were never found and even infections with three and four parasites were very local. It is suggested that the underdispersion is due to a very low probability of infection in the open waters of the sea. Although the presence of E. parvum cannot be used as a biological tag for capelin, its abundance and frequency distribution can. The difference in frequency distribution and the failure to find any heavily infected fish in the Barents Sea confirm the suggestion that the capelin of Balsfjord form a local isolated population, which does not migrate into the Barents Sea. The differences in infection levels within the Barents Sea suggest the further possibility that there are at least two stocks of capelin there, but this requires further investigation and confirmation. Article in Journal/Newspaper Balsfjord Barents Sea kola peninsula North Norway Copepods Spitsbergen Wiley Online Library Balsfjord ENVELOPE(19.227,19.227,69.240,69.240) Barents Sea Kola Peninsula Murmansk Norway Journal of Fish Biology 15 2 223 236 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Samples of Eubothrium parvum were obtained from capelin Mallotus villosus at 55 stations throughout the Barents Sea and from Balsfjord, North Norway. The parasite is distributed widely throughout the Barents Sea, but both incidence and intensity of infection are higher in the regions off Murmansk and the Kola peninsula, and Spitsbergen. E. parvum exhibits a seasonal peak in maturation and probably also in acquisition of new infections. The incidence of infection is greatest in 1 + fish, whereas the intensity is more independent of host age. It is suggested that the parasite requires only a single intermediate host, a plank‐tonic copepod, and its distribution in relation to age of host is a reflection of the dietary preference shown by young capelin for copepods. The frequency distribution of E. parvum in capelin was over‐dispersed in Balsfjord, where infection levels of between 1 and 28 parasites per fish were encountered in all samples, but under‐dispersed in the Barents Sea, where infections of more than four parasites per fish were never found and even infections with three and four parasites were very local. It is suggested that the underdispersion is due to a very low probability of infection in the open waters of the sea. Although the presence of E. parvum cannot be used as a biological tag for capelin, its abundance and frequency distribution can. The difference in frequency distribution and the failure to find any heavily infected fish in the Barents Sea confirm the suggestion that the capelin of Balsfjord form a local isolated population, which does not migrate into the Barents Sea. The differences in infection levels within the Barents Sea suggest the further possibility that there are at least two stocks of capelin there, but this requires further investigation and confirmation. |
format |
Article in Journal/Newspaper |
author |
Kennedy, C. R. |
spellingShingle |
Kennedy, C. R. The distribution and biology of the cestode Eubothrium parvum in capelin, Mallotus villosus, (Pallas) in the Barents Sea, and its use as a biological tag |
author_facet |
Kennedy, C. R. |
author_sort |
Kennedy, C. R. |
title |
The distribution and biology of the cestode Eubothrium parvum in capelin, Mallotus villosus, (Pallas) in the Barents Sea, and its use as a biological tag |
title_short |
The distribution and biology of the cestode Eubothrium parvum in capelin, Mallotus villosus, (Pallas) in the Barents Sea, and its use as a biological tag |
title_full |
The distribution and biology of the cestode Eubothrium parvum in capelin, Mallotus villosus, (Pallas) in the Barents Sea, and its use as a biological tag |
title_fullStr |
The distribution and biology of the cestode Eubothrium parvum in capelin, Mallotus villosus, (Pallas) in the Barents Sea, and its use as a biological tag |
title_full_unstemmed |
The distribution and biology of the cestode Eubothrium parvum in capelin, Mallotus villosus, (Pallas) in the Barents Sea, and its use as a biological tag |
title_sort |
distribution and biology of the cestode eubothrium parvum in capelin, mallotus villosus, (pallas) in the barents sea, and its use as a biological tag |
publisher |
Wiley |
publishDate |
1979 |
url |
http://dx.doi.org/10.1111/j.1095-8649.1979.tb03585.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.1979.tb03585.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.1979.tb03585.x |
long_lat |
ENVELOPE(19.227,19.227,69.240,69.240) |
geographic |
Balsfjord Barents Sea Kola Peninsula Murmansk Norway |
geographic_facet |
Balsfjord Barents Sea Kola Peninsula Murmansk Norway |
genre |
Balsfjord Barents Sea kola peninsula North Norway Copepods Spitsbergen |
genre_facet |
Balsfjord Barents Sea kola peninsula North Norway Copepods Spitsbergen |
op_source |
Journal of Fish Biology volume 15, issue 2, page 223-236 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.1979.tb03585.x |
container_title |
Journal of Fish Biology |
container_volume |
15 |
container_issue |
2 |
container_start_page |
223 |
op_container_end_page |
236 |
_version_ |
1800748687463284736 |