Stenurus minor (Metastrongyloidea: Pseudaliidae) infections of the cranial sinuses of the harbour porpoise, Phocoena phocoena
Seventy-eight harbour porpoises, Phocoena phocoena (33 females, 45 males), were obtained in summer (June-September) as incidental by-catch from the cod fishery in the Gulf of St. Lawrence and examined for the presence of cranial sinus nematodes. Stenurus minor (Kühn, 1829) Baylis and Daubney, 1925 w...
Published in: | Canadian Journal of Zoology |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Canadian Science Publishing
1998
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1139/z98-057 http://www.nrcresearchpress.com/doi/pdf/10.1139/z98-057 |
id |
crcansciencepubl:10.1139/z98-057 |
---|---|
record_format |
openpolar |
spelling |
crcansciencepubl:10.1139/z98-057 2024-03-03T08:45:08+00:00 Stenurus minor (Metastrongyloidea: Pseudaliidae) infections of the cranial sinuses of the harbour porpoise, Phocoena phocoena Faulkner, Jacqueline Measures, Lena N Whoriskey, Fred G 1998 http://dx.doi.org/10.1139/z98-057 http://www.nrcresearchpress.com/doi/pdf/10.1139/z98-057 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 76, issue 7, page 1209-1216 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 1998 crcansciencepubl https://doi.org/10.1139/z98-057 2024-02-07T10:53:32Z Seventy-eight harbour porpoises, Phocoena phocoena (33 females, 45 males), were obtained in summer (June-September) as incidental by-catch from the cod fishery in the Gulf of St. Lawrence and examined for the presence of cranial sinus nematodes. Stenurus minor (Kühn, 1829) Baylis and Daubney, 1925 were present in the cranial sinuses of all adult porpoises (>1 year old, N = 66, mean intensity = 2362, range = 87-8920) and absent in all young of the year (<1 year old, N = 12). Only fifth-stage worms were observed and these were equally distributed between the right and left sides of the skull (mean intensity = 1158 and 1213 in the left and right side, respectively). However, S. minor were approximately twice as numerous in the frontal sinuses as in the ear sinuses. Mean intensities of S. minor were similar among all infected porpoises. Parasite load had no apparent effect on porpoise body condition (measured as percent blubber mass of the carcass). No gross lesions associated with the presence of numerous S. minor in the cranial sinuses were observed. There was an inverse relationship between the intensity of S. minor infection and mean worm length, which is suggestive of a "crowding effect." Mean worm length was 17.8 ± 0.2 mm in lightly infected porpoises and 16.1 ± 0.2 mm in heavily infected animals. Article in Journal/Newspaper Harbour porpoise Phocoena phocoena Canadian Science Publishing Canadian Journal of Zoology 76 7 1209 1216 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics Faulkner, Jacqueline Measures, Lena N Whoriskey, Fred G Stenurus minor (Metastrongyloidea: Pseudaliidae) infections of the cranial sinuses of the harbour porpoise, Phocoena phocoena |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Seventy-eight harbour porpoises, Phocoena phocoena (33 females, 45 males), were obtained in summer (June-September) as incidental by-catch from the cod fishery in the Gulf of St. Lawrence and examined for the presence of cranial sinus nematodes. Stenurus minor (Kühn, 1829) Baylis and Daubney, 1925 were present in the cranial sinuses of all adult porpoises (>1 year old, N = 66, mean intensity = 2362, range = 87-8920) and absent in all young of the year (<1 year old, N = 12). Only fifth-stage worms were observed and these were equally distributed between the right and left sides of the skull (mean intensity = 1158 and 1213 in the left and right side, respectively). However, S. minor were approximately twice as numerous in the frontal sinuses as in the ear sinuses. Mean intensities of S. minor were similar among all infected porpoises. Parasite load had no apparent effect on porpoise body condition (measured as percent blubber mass of the carcass). No gross lesions associated with the presence of numerous S. minor in the cranial sinuses were observed. There was an inverse relationship between the intensity of S. minor infection and mean worm length, which is suggestive of a "crowding effect." Mean worm length was 17.8 ± 0.2 mm in lightly infected porpoises and 16.1 ± 0.2 mm in heavily infected animals. |
format |
Article in Journal/Newspaper |
author |
Faulkner, Jacqueline Measures, Lena N Whoriskey, Fred G |
author_facet |
Faulkner, Jacqueline Measures, Lena N Whoriskey, Fred G |
author_sort |
Faulkner, Jacqueline |
title |
Stenurus minor (Metastrongyloidea: Pseudaliidae) infections of the cranial sinuses of the harbour porpoise, Phocoena phocoena |
title_short |
Stenurus minor (Metastrongyloidea: Pseudaliidae) infections of the cranial sinuses of the harbour porpoise, Phocoena phocoena |
title_full |
Stenurus minor (Metastrongyloidea: Pseudaliidae) infections of the cranial sinuses of the harbour porpoise, Phocoena phocoena |
title_fullStr |
Stenurus minor (Metastrongyloidea: Pseudaliidae) infections of the cranial sinuses of the harbour porpoise, Phocoena phocoena |
title_full_unstemmed |
Stenurus minor (Metastrongyloidea: Pseudaliidae) infections of the cranial sinuses of the harbour porpoise, Phocoena phocoena |
title_sort |
stenurus minor (metastrongyloidea: pseudaliidae) infections of the cranial sinuses of the harbour porpoise, phocoena phocoena |
publisher |
Canadian Science Publishing |
publishDate |
1998 |
url |
http://dx.doi.org/10.1139/z98-057 http://www.nrcresearchpress.com/doi/pdf/10.1139/z98-057 |
genre |
Harbour porpoise Phocoena phocoena |
genre_facet |
Harbour porpoise Phocoena phocoena |
op_source |
Canadian Journal of Zoology volume 76, issue 7, page 1209-1216 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z98-057 |
container_title |
Canadian Journal of Zoology |
container_volume |
76 |
container_issue |
7 |
container_start_page |
1209 |
op_container_end_page |
1216 |
_version_ |
1792500679793704960 |