The use of parasites in discriminating stocks of Pacific halibut (Hippoglossus stenolepis) in the northeast Pacific
The use of parasites as indicators of the stock structure of Pacific halibut (Hippoglossus stenolepis) in the northeast Pacific was investigated by using 328 adult (>55 cm fork length) halibut from 15 composite localities ranging from northern California to the northern Bering Sea and 96 juvenile...
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2003
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ftoceandocs:oai:aquadocs.org:1834/30954 2023-05-15T15:43:10+02:00 The use of parasites in discriminating stocks of Pacific halibut (Hippoglossus stenolepis) in the northeast Pacific Blaylock, Reginald B. Margolis, Leo Holmes, John C. 2003 application/pdf 1-9 http://hdl.handle.net/1834/30954 en eng http://fishbull.noaa.gov/1011/01blaylo.pdf 0090-0656 http://hdl.handle.net/1834/30954 http://aquaticcommons.org/id/eprint/15101 403 2014-05-28 03:37:46 15101 United States National Marine Fisheries Service Ecology Fisheries article TRUE 2003 ftoceandocs 2023-04-06T17:04:18Z The use of parasites as indicators of the stock structure of Pacific halibut (Hippoglossus stenolepis) in the northeast Pacific was investigated by using 328 adult (>55 cm fork length) halibut from 15 composite localities ranging from northern California to the northern Bering Sea and 96 juvenile (10–55 cm) halibut from five localities ranging from the northern Queen Charlotte Islands to the Bering Sea. Counts of eight selected parasite species (the juvenile acanthocephalans Corynosoma strumosum and C. villosum, the metacestode Nybelinia surmenicola, the digenean metacercaria Otodistomum sp., and the larval nematodes Anisakis simplex, Pseudoterranova decipiens, Contracaecum sp., and Spirurid gen. sp.) that produce infections of long duration, do not multiply in the host, and that have a relatively high abundance in at least one geographic locality were subjected to discriminant function analysis. Juvenile Pacific halibut showed no separation and, even though they were not heavily infected with parasites, the analysis suggested that juveniles could be a mixed stock. Three groups of adults were identified: fish from California to the southern Queen Charlotte Islands, those from the northern Queen Charlotte Islands to the central Bering Sea, and those from the central and north-ern Bering Sea. These groups suggest that the single stock concept be more thoroughly evaluated. Article in Journal/Newspaper Bering Sea IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications Bering Sea Pacific Queen Charlotte ENVELOPE(-132.088,-132.088,53.255,53.255) |
institution |
Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
English |
topic |
Ecology Fisheries |
spellingShingle |
Ecology Fisheries Blaylock, Reginald B. Margolis, Leo Holmes, John C. The use of parasites in discriminating stocks of Pacific halibut (Hippoglossus stenolepis) in the northeast Pacific |
topic_facet |
Ecology Fisheries |
description |
The use of parasites as indicators of the stock structure of Pacific halibut (Hippoglossus stenolepis) in the northeast Pacific was investigated by using 328 adult (>55 cm fork length) halibut from 15 composite localities ranging from northern California to the northern Bering Sea and 96 juvenile (10–55 cm) halibut from five localities ranging from the northern Queen Charlotte Islands to the Bering Sea. Counts of eight selected parasite species (the juvenile acanthocephalans Corynosoma strumosum and C. villosum, the metacestode Nybelinia surmenicola, the digenean metacercaria Otodistomum sp., and the larval nematodes Anisakis simplex, Pseudoterranova decipiens, Contracaecum sp., and Spirurid gen. sp.) that produce infections of long duration, do not multiply in the host, and that have a relatively high abundance in at least one geographic locality were subjected to discriminant function analysis. Juvenile Pacific halibut showed no separation and, even though they were not heavily infected with parasites, the analysis suggested that juveniles could be a mixed stock. Three groups of adults were identified: fish from California to the southern Queen Charlotte Islands, those from the northern Queen Charlotte Islands to the central Bering Sea, and those from the central and north-ern Bering Sea. These groups suggest that the single stock concept be more thoroughly evaluated. |
format |
Article in Journal/Newspaper |
author |
Blaylock, Reginald B. Margolis, Leo Holmes, John C. |
author_facet |
Blaylock, Reginald B. Margolis, Leo Holmes, John C. |
author_sort |
Blaylock, Reginald B. |
title |
The use of parasites in discriminating stocks of Pacific halibut (Hippoglossus stenolepis) in the northeast Pacific |
title_short |
The use of parasites in discriminating stocks of Pacific halibut (Hippoglossus stenolepis) in the northeast Pacific |
title_full |
The use of parasites in discriminating stocks of Pacific halibut (Hippoglossus stenolepis) in the northeast Pacific |
title_fullStr |
The use of parasites in discriminating stocks of Pacific halibut (Hippoglossus stenolepis) in the northeast Pacific |
title_full_unstemmed |
The use of parasites in discriminating stocks of Pacific halibut (Hippoglossus stenolepis) in the northeast Pacific |
title_sort |
use of parasites in discriminating stocks of pacific halibut (hippoglossus stenolepis) in the northeast pacific |
publishDate |
2003 |
url |
http://hdl.handle.net/1834/30954 |
long_lat |
ENVELOPE(-132.088,-132.088,53.255,53.255) |
geographic |
Bering Sea Pacific Queen Charlotte |
geographic_facet |
Bering Sea Pacific Queen Charlotte |
genre |
Bering Sea |
genre_facet |
Bering Sea |
op_source |
http://aquaticcommons.org/id/eprint/15101 403 2014-05-28 03:37:46 15101 United States National Marine Fisheries Service |
op_relation |
http://fishbull.noaa.gov/1011/01blaylo.pdf 0090-0656 http://hdl.handle.net/1834/30954 |
_version_ |
1766377213918183424 |