Parasites, diet and stable isotopes of shorthorn sculpin (Myoxocephalus scorpius) from Frobisher bay, Canada
Shorthorn sculpin (Myoxocephalus scorpius) from Frobisher Bay, Baffin Island, is a slow growing long-lived species. A wide range of diet items were present in the stomachs of the shorthorn sculpins sampled but 2-3 diet items (amphipod species) comprised 99.5% of total food consumed. These amphipods...
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ftdoajarticles:oai:doaj.org/article:c6afb0172b564521a30a89adb39274de 2023-05-15T15:35:27+02:00 Parasites, diet and stable isotopes of shorthorn sculpin (Myoxocephalus scorpius) from Frobisher bay, Canada Dick T. Chambers C. Gallagher C.P. 2009-12-01T00:00:00Z https://doi.org/10.1051/parasite/2009164297 https://doaj.org/article/c6afb0172b564521a30a89adb39274de EN eng EDP Sciences http://dx.doi.org/10.1051/parasite/2009164297 https://doaj.org/toc/1252-607X https://doaj.org/toc/1776-1042 1252-607X 1776-1042 doi:10.1051/parasite/2009164297 https://doaj.org/article/c6afb0172b564521a30a89adb39274de Parasite, Vol 16, Iss 4, Pp 297-304 (2009) shorthorn sculpin Myoxocephalus scorpius parasites diet stable isotopes Infectious and parasitic diseases RC109-216 article 2009 ftdoajarticles https://doi.org/10.1051/parasite/2009164297 2022-12-31T05:39:04Z Shorthorn sculpin (Myoxocephalus scorpius) from Frobisher Bay, Baffin Island, is a slow growing long-lived species. A wide range of diet items were present in the stomachs of the shorthorn sculpins sampled but 2-3 diet items (amphipod species) comprised 99.5% of total food consumed. These amphipods were present in the stomachs in similar proportions among all age classes of shorthorn sculpin. Several new host records for parasites were reported and mean numbers of parasite species increased with shorthorn sculpin age. The increased diversity of parasite species and higher δ15N values in older/larger individuals suggest that their diets were more diverse and the prey items consumed had higher δ15N values. By contrast, the value of δ13C in dominant diet items masked the δ13C values of minor diet items. We conclude that parasites and stable isotope values provide complementary data on feeding patterns of the shorthorn sculpin. The ubiquitous marine acanthocephalan, Echinorhynchus gadi, was found at high prevalences (87–100%) and mean intensities (28–35), and were localized in the midgut. In contrast to other studies on acanthocephalans, E. gadi did not influence fish condition as measured by condition factor, liver somatic and gonado-somatic indices. Article in Journal/Newspaper Baffin Island Baffin Frobisher Bay Directory of Open Access Journals: DOAJ Articles Baffin Island Canada Frobisher Bay ENVELOPE(-66.581,-66.581,62.834,62.834) Parasite 16 4 297 304 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
shorthorn sculpin Myoxocephalus scorpius parasites diet stable isotopes Infectious and parasitic diseases RC109-216 |
spellingShingle |
shorthorn sculpin Myoxocephalus scorpius parasites diet stable isotopes Infectious and parasitic diseases RC109-216 Dick T. Chambers C. Gallagher C.P. Parasites, diet and stable isotopes of shorthorn sculpin (Myoxocephalus scorpius) from Frobisher bay, Canada |
topic_facet |
shorthorn sculpin Myoxocephalus scorpius parasites diet stable isotopes Infectious and parasitic diseases RC109-216 |
description |
Shorthorn sculpin (Myoxocephalus scorpius) from Frobisher Bay, Baffin Island, is a slow growing long-lived species. A wide range of diet items were present in the stomachs of the shorthorn sculpins sampled but 2-3 diet items (amphipod species) comprised 99.5% of total food consumed. These amphipods were present in the stomachs in similar proportions among all age classes of shorthorn sculpin. Several new host records for parasites were reported and mean numbers of parasite species increased with shorthorn sculpin age. The increased diversity of parasite species and higher δ15N values in older/larger individuals suggest that their diets were more diverse and the prey items consumed had higher δ15N values. By contrast, the value of δ13C in dominant diet items masked the δ13C values of minor diet items. We conclude that parasites and stable isotope values provide complementary data on feeding patterns of the shorthorn sculpin. The ubiquitous marine acanthocephalan, Echinorhynchus gadi, was found at high prevalences (87–100%) and mean intensities (28–35), and were localized in the midgut. In contrast to other studies on acanthocephalans, E. gadi did not influence fish condition as measured by condition factor, liver somatic and gonado-somatic indices. |
format |
Article in Journal/Newspaper |
author |
Dick T. Chambers C. Gallagher C.P. |
author_facet |
Dick T. Chambers C. Gallagher C.P. |
author_sort |
Dick T. |
title |
Parasites, diet and stable isotopes of shorthorn sculpin (Myoxocephalus scorpius) from Frobisher bay, Canada |
title_short |
Parasites, diet and stable isotopes of shorthorn sculpin (Myoxocephalus scorpius) from Frobisher bay, Canada |
title_full |
Parasites, diet and stable isotopes of shorthorn sculpin (Myoxocephalus scorpius) from Frobisher bay, Canada |
title_fullStr |
Parasites, diet and stable isotopes of shorthorn sculpin (Myoxocephalus scorpius) from Frobisher bay, Canada |
title_full_unstemmed |
Parasites, diet and stable isotopes of shorthorn sculpin (Myoxocephalus scorpius) from Frobisher bay, Canada |
title_sort |
parasites, diet and stable isotopes of shorthorn sculpin (myoxocephalus scorpius) from frobisher bay, canada |
publisher |
EDP Sciences |
publishDate |
2009 |
url |
https://doi.org/10.1051/parasite/2009164297 https://doaj.org/article/c6afb0172b564521a30a89adb39274de |
long_lat |
ENVELOPE(-66.581,-66.581,62.834,62.834) |
geographic |
Baffin Island Canada Frobisher Bay |
geographic_facet |
Baffin Island Canada Frobisher Bay |
genre |
Baffin Island Baffin Frobisher Bay |
genre_facet |
Baffin Island Baffin Frobisher Bay |
op_source |
Parasite, Vol 16, Iss 4, Pp 297-304 (2009) |
op_relation |
http://dx.doi.org/10.1051/parasite/2009164297 https://doaj.org/toc/1252-607X https://doaj.org/toc/1776-1042 1252-607X 1776-1042 doi:10.1051/parasite/2009164297 https://doaj.org/article/c6afb0172b564521a30a89adb39274de |
op_doi |
https://doi.org/10.1051/parasite/2009164297 |
container_title |
Parasite |
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16 |
container_issue |
4 |
container_start_page |
297 |
op_container_end_page |
304 |
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1766365783088168960 |