Spatial and temporal distributions of larval sealworm, Pseudoterranova decipiens (Nematoda: Anisakinae), in Hippoglossoides platessoides (Pleuronectidae) in the Canadian Maritime Region from 1993 to 1999
Spatial and temporal trends of larval sealworm (Pseudoterranova decipiens) infection in eastern Canadian groundfish were monitored in an indicator host, Canadian plaice (Hippoglossoides platessoides), in the 31 to 40 cm length range. Between February 1993 and September 1999, a total of 8,482 plaice...
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Septentrio Academic Publishing
2001
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Online Access: | https://doi.org/10.7557/3.2960 https://doaj.org/article/90b10d94bad34cffb6c7b3b6d4242412 |
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ftdoajarticles:oai:doaj.org/article:90b10d94bad34cffb6c7b3b6d4242412 2023-05-15T17:45:42+02:00 Spatial and temporal distributions of larval sealworm, Pseudoterranova decipiens (Nematoda: Anisakinae), in Hippoglossoides platessoides (Pleuronectidae) in the Canadian Maritime Region from 1993 to 1999 G McClelland DJ Martell 2001-11-01T00:00:00Z https://doi.org/10.7557/3.2960 https://doaj.org/article/90b10d94bad34cffb6c7b3b6d4242412 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2960 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 1560-2206 2309-2491 doi:10.7557/3.2960 https://doaj.org/article/90b10d94bad34cffb6c7b3b6d4242412 NAMMCO Scientific Publications, Vol 3, Iss 0, Pp 77-94 (2001) Sealworms Pseudoterranova decipiens hosts distributions parasites grey seals Halichoerus grypus Ecology QH540-549.5 article 2001 ftdoajarticles https://doi.org/10.7557/3.2960 2022-12-31T03:36:21Z Spatial and temporal trends of larval sealworm (Pseudoterranova decipiens) infection in eastern Canadian groundfish were monitored in an indicator host, Canadian plaice (Hippoglossoides platessoides), in the 31 to 40 cm length range. Between February 1993 and September 1999, a total of 8,482 plaice were collected from 33 locations in Canadian Maritime waters (NAFO Subdivisions 4TVWX-5ZE), and their fillets and napes were examined for sealworm. Prevalence (P) and abundance (A) of the parasite were greatest (P ranging from 95 to 100%, A from 7.48 to 15.60) in fish collected from the central Scotian shelf (4VSW) near Sable Island, site of the largest grey seal (Halichoerus grypus) colony in the northwest Atlantic, and from Jordan Basin in the northeastern Gulf of Maine (4X). The infection of greatest intensity (I=158) occurred in a fish from “The Gully” slopewaters of Banquereau (4VS), a few kilometres northeast of Sable Island. By 1995-99, sealworm prevalence and/or abundance had increased significantly in plaice from most locations where stable or declining infection parameters were observed from 1989 to 1993, but abundance of the parasite continued to decline in the Sable Island area. While spatial and temporal distributions of larval sealworm in plaice seemed largely related to the distribution and growth of grey seal populations, the influence of definitive hosts was probably mitigated by other factors such as changes in environmental temperature and parasite density limiting effects in the indicator host. Article in Journal/Newspaper Northwest Atlantic Directory of Open Access Journals: DOAJ Articles The Gully ENVELOPE(-57.731,-57.731,51.567,51.567) NAMMCO Scientific Publications 3 77 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Sealworms Pseudoterranova decipiens hosts distributions parasites grey seals Halichoerus grypus Ecology QH540-549.5 |
spellingShingle |
Sealworms Pseudoterranova decipiens hosts distributions parasites grey seals Halichoerus grypus Ecology QH540-549.5 G McClelland DJ Martell Spatial and temporal distributions of larval sealworm, Pseudoterranova decipiens (Nematoda: Anisakinae), in Hippoglossoides platessoides (Pleuronectidae) in the Canadian Maritime Region from 1993 to 1999 |
topic_facet |
Sealworms Pseudoterranova decipiens hosts distributions parasites grey seals Halichoerus grypus Ecology QH540-549.5 |
description |
Spatial and temporal trends of larval sealworm (Pseudoterranova decipiens) infection in eastern Canadian groundfish were monitored in an indicator host, Canadian plaice (Hippoglossoides platessoides), in the 31 to 40 cm length range. Between February 1993 and September 1999, a total of 8,482 plaice were collected from 33 locations in Canadian Maritime waters (NAFO Subdivisions 4TVWX-5ZE), and their fillets and napes were examined for sealworm. Prevalence (P) and abundance (A) of the parasite were greatest (P ranging from 95 to 100%, A from 7.48 to 15.60) in fish collected from the central Scotian shelf (4VSW) near Sable Island, site of the largest grey seal (Halichoerus grypus) colony in the northwest Atlantic, and from Jordan Basin in the northeastern Gulf of Maine (4X). The infection of greatest intensity (I=158) occurred in a fish from “The Gully” slopewaters of Banquereau (4VS), a few kilometres northeast of Sable Island. By 1995-99, sealworm prevalence and/or abundance had increased significantly in plaice from most locations where stable or declining infection parameters were observed from 1989 to 1993, but abundance of the parasite continued to decline in the Sable Island area. While spatial and temporal distributions of larval sealworm in plaice seemed largely related to the distribution and growth of grey seal populations, the influence of definitive hosts was probably mitigated by other factors such as changes in environmental temperature and parasite density limiting effects in the indicator host. |
format |
Article in Journal/Newspaper |
author |
G McClelland DJ Martell |
author_facet |
G McClelland DJ Martell |
author_sort |
G McClelland |
title |
Spatial and temporal distributions of larval sealworm, Pseudoterranova decipiens (Nematoda: Anisakinae), in Hippoglossoides platessoides (Pleuronectidae) in the Canadian Maritime Region from 1993 to 1999 |
title_short |
Spatial and temporal distributions of larval sealworm, Pseudoterranova decipiens (Nematoda: Anisakinae), in Hippoglossoides platessoides (Pleuronectidae) in the Canadian Maritime Region from 1993 to 1999 |
title_full |
Spatial and temporal distributions of larval sealworm, Pseudoterranova decipiens (Nematoda: Anisakinae), in Hippoglossoides platessoides (Pleuronectidae) in the Canadian Maritime Region from 1993 to 1999 |
title_fullStr |
Spatial and temporal distributions of larval sealworm, Pseudoterranova decipiens (Nematoda: Anisakinae), in Hippoglossoides platessoides (Pleuronectidae) in the Canadian Maritime Region from 1993 to 1999 |
title_full_unstemmed |
Spatial and temporal distributions of larval sealworm, Pseudoterranova decipiens (Nematoda: Anisakinae), in Hippoglossoides platessoides (Pleuronectidae) in the Canadian Maritime Region from 1993 to 1999 |
title_sort |
spatial and temporal distributions of larval sealworm, pseudoterranova decipiens (nematoda: anisakinae), in hippoglossoides platessoides (pleuronectidae) in the canadian maritime region from 1993 to 1999 |
publisher |
Septentrio Academic Publishing |
publishDate |
2001 |
url |
https://doi.org/10.7557/3.2960 https://doaj.org/article/90b10d94bad34cffb6c7b3b6d4242412 |
long_lat |
ENVELOPE(-57.731,-57.731,51.567,51.567) |
geographic |
The Gully |
geographic_facet |
The Gully |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_source |
NAMMCO Scientific Publications, Vol 3, Iss 0, Pp 77-94 (2001) |
op_relation |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2960 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 1560-2206 2309-2491 doi:10.7557/3.2960 https://doaj.org/article/90b10d94bad34cffb6c7b3b6d4242412 |
op_doi |
https://doi.org/10.7557/3.2960 |
container_title |
NAMMCO Scientific Publications |
container_volume |
3 |
container_start_page |
77 |
_version_ |
1766148910365016064 |