Parasite faunas of farmed cod and adjacent wild cod populations in Norway: a comparison
Atlantic cod Gadus morhua L. is host to more than 120 parasite species. Background abundance of these parasite species on adjacent wild hosts determines the infection pressure on cod farmed in open pens. In 2006, 2007 and 2008, 343 cod were collected from 4 locations along the coast of Norway: Øksfj...
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Online Access: | https://hdl.handle.net/10037/27023 https://doi.org/10.3354/aei00027 |
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ftunivtroemsoe:oai:munin.uit.no:10037/27023 2023-05-15T15:27:45+02:00 Parasite faunas of farmed cod and adjacent wild cod populations in Norway: a comparison Heuch, Peter Andreas Jansen, Peder Andreas Hansen, Haakon Sterud, Erik MacKenzie, Ken Haugen, Pål Hemmingsen, Willy 2011-07-14 https://hdl.handle.net/10037/27023 https://doi.org/10.3354/aei00027 eng eng Inter Research Aquaculture Environment Interactions Heuch PA, Jansen PA, Hansen H, Sterud E, MacKenzie K, Haugen H, Hemmingsen W. Parasite faunas of farmed cod and adjacent wild cod populations in Norway: a comparison. Aquaculture Environment Interactions. 2011;2:1-13 FRIDAID 862516 doi:10.3354/aei00027 1869-215X 1869-7534 https://hdl.handle.net/10037/27023 Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2011 Inter Research https://creativecommons.org/licenses/by/4.0 CC-BY Fisk / Fish Fiskeparasitter / Fish parasites Journal article Tidsskriftartikkel Peer reviewed 2011 ftunivtroemsoe https://doi.org/10.3354/aei00027 2022-10-12T23:01:06Z Atlantic cod Gadus morhua L. is host to more than 120 parasite species. Background abundance of these parasite species on adjacent wild hosts determines the infection pressure on cod farmed in open pens. In 2006, 2007 and 2008, 343 cod were collected from 4 locations along the coast of Norway: Øksfjord, Kvarøy, Brønnøysund and Ålesund. Freshly killed wild local cod, wild migratory cod, hatchery-reared farmed cod and wild-caught farmed cod were given a complete autopsy according to a standardized protocol. A total of 343 cod were examined, from which 48 parasite taxa, including 37 named species, were recorded. Wild local cod had the most diverse parasite fauna. Wild-caught farmed cod had a more diverse parasite fauna than the wild migratory cod, and the latter had 2 more parasite taxa than the hatchery-reared cod. The most common parasites in hatchery-reared cod were the digenean Cryptocotyle lingua, the monogenean Gyrodactylus marinus and the protozoans Spironucleus torosa and Trichodina spp. Other parasites occurring frequently in hatchery-reared cod were the parasitic copepod Cresseyus confusus, the myxosporean Zschokkella hildae and the nematode Hysterothylacium aduncum. The nematode and digenean fauna of the hatchery-reared fish was sparse compared to wild cod and the wild-caught farmed cod. Caligid copepods were very rare on the hatchery-reared cod. These results support the hypothesis that food-borne parasites, such as nematodes and mature stages of digeneans, are most unlikely to become a health problem for farmed cod, and that parasites with simple life cycles and pelagic transmission stages, such as monogeneans and trichodinids, may dominate the parasite fauna of farmed cod in the future. Article in Journal/Newspaper atlantic cod Brønnøysund Gadus morhua Øksfjord Copepods University of Tromsø: Munin Open Research Archive Norway Brønnøysund ENVELOPE(12.213,12.213,65.475,65.475) Øksfjord ENVELOPE(22.351,22.351,70.239,70.239) Aquaculture Environment Interactions 2 1 1 13 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
topic |
Fisk / Fish Fiskeparasitter / Fish parasites |
spellingShingle |
Fisk / Fish Fiskeparasitter / Fish parasites Heuch, Peter Andreas Jansen, Peder Andreas Hansen, Haakon Sterud, Erik MacKenzie, Ken Haugen, Pål Hemmingsen, Willy Parasite faunas of farmed cod and adjacent wild cod populations in Norway: a comparison |
topic_facet |
Fisk / Fish Fiskeparasitter / Fish parasites |
description |
Atlantic cod Gadus morhua L. is host to more than 120 parasite species. Background abundance of these parasite species on adjacent wild hosts determines the infection pressure on cod farmed in open pens. In 2006, 2007 and 2008, 343 cod were collected from 4 locations along the coast of Norway: Øksfjord, Kvarøy, Brønnøysund and Ålesund. Freshly killed wild local cod, wild migratory cod, hatchery-reared farmed cod and wild-caught farmed cod were given a complete autopsy according to a standardized protocol. A total of 343 cod were examined, from which 48 parasite taxa, including 37 named species, were recorded. Wild local cod had the most diverse parasite fauna. Wild-caught farmed cod had a more diverse parasite fauna than the wild migratory cod, and the latter had 2 more parasite taxa than the hatchery-reared cod. The most common parasites in hatchery-reared cod were the digenean Cryptocotyle lingua, the monogenean Gyrodactylus marinus and the protozoans Spironucleus torosa and Trichodina spp. Other parasites occurring frequently in hatchery-reared cod were the parasitic copepod Cresseyus confusus, the myxosporean Zschokkella hildae and the nematode Hysterothylacium aduncum. The nematode and digenean fauna of the hatchery-reared fish was sparse compared to wild cod and the wild-caught farmed cod. Caligid copepods were very rare on the hatchery-reared cod. These results support the hypothesis that food-borne parasites, such as nematodes and mature stages of digeneans, are most unlikely to become a health problem for farmed cod, and that parasites with simple life cycles and pelagic transmission stages, such as monogeneans and trichodinids, may dominate the parasite fauna of farmed cod in the future. |
format |
Article in Journal/Newspaper |
author |
Heuch, Peter Andreas Jansen, Peder Andreas Hansen, Haakon Sterud, Erik MacKenzie, Ken Haugen, Pål Hemmingsen, Willy |
author_facet |
Heuch, Peter Andreas Jansen, Peder Andreas Hansen, Haakon Sterud, Erik MacKenzie, Ken Haugen, Pål Hemmingsen, Willy |
author_sort |
Heuch, Peter Andreas |
title |
Parasite faunas of farmed cod and adjacent wild cod populations in Norway: a comparison |
title_short |
Parasite faunas of farmed cod and adjacent wild cod populations in Norway: a comparison |
title_full |
Parasite faunas of farmed cod and adjacent wild cod populations in Norway: a comparison |
title_fullStr |
Parasite faunas of farmed cod and adjacent wild cod populations in Norway: a comparison |
title_full_unstemmed |
Parasite faunas of farmed cod and adjacent wild cod populations in Norway: a comparison |
title_sort |
parasite faunas of farmed cod and adjacent wild cod populations in norway: a comparison |
publisher |
Inter Research |
publishDate |
2011 |
url |
https://hdl.handle.net/10037/27023 https://doi.org/10.3354/aei00027 |
long_lat |
ENVELOPE(12.213,12.213,65.475,65.475) ENVELOPE(22.351,22.351,70.239,70.239) |
geographic |
Norway Brønnøysund Øksfjord |
geographic_facet |
Norway Brønnøysund Øksfjord |
genre |
atlantic cod Brønnøysund Gadus morhua Øksfjord Copepods |
genre_facet |
atlantic cod Brønnøysund Gadus morhua Øksfjord Copepods |
op_relation |
Aquaculture Environment Interactions Heuch PA, Jansen PA, Hansen H, Sterud E, MacKenzie K, Haugen H, Hemmingsen W. Parasite faunas of farmed cod and adjacent wild cod populations in Norway: a comparison. Aquaculture Environment Interactions. 2011;2:1-13 FRIDAID 862516 doi:10.3354/aei00027 1869-215X 1869-7534 https://hdl.handle.net/10037/27023 |
op_rights |
Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2011 Inter Research https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3354/aei00027 |
container_title |
Aquaculture Environment Interactions |
container_volume |
2 |
container_issue |
1 |
container_start_page |
1 |
op_container_end_page |
13 |
_version_ |
1766358161504075776 |