Phocanema decipiens (Nematoda: Anisakinae): experimental infections in marine copepods
Gravid female Phocanema decipiens were recovered from the stomachs of freshly killed harbour (Phoca vitulina) and grey seals (Halichoerus grypus). Ova dissected from the nematodes were incubated in seawater and the mean time to hatch varied from 8 days at 20 °C to 52 days at 5 °C. Posthatch survival...
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Canadian Science Publishing
1982
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Online Access: | http://dx.doi.org/10.1139/z82-075 http://www.nrcresearchpress.com/doi/pdf/10.1139/z82-075 |
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crcansciencepubl:10.1139/z82-075 2024-09-30T14:41:21+00:00 Phocanema decipiens (Nematoda: Anisakinae): experimental infections in marine copepods McClelland, Gary 1982 http://dx.doi.org/10.1139/z82-075 http://www.nrcresearchpress.com/doi/pdf/10.1139/z82-075 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 60, issue 4, page 502-509 ISSN 0008-4301 1480-3283 journal-article 1982 crcansciencepubl https://doi.org/10.1139/z82-075 2024-09-19T04:09:48Z Gravid female Phocanema decipiens were recovered from the stomachs of freshly killed harbour (Phoca vitulina) and grey seals (Halichoerus grypus). Ova dissected from the nematodes were incubated in seawater and the mean time to hatch varied from 8 days at 20 °C to 52 days at 5 °C. Posthatch survival of ensheathed larvae in seawater varied from 48 h at 20 °C to 140 days at 5 °C. Fifteen species of copepods collected from the North West Arm, Halifax, N.S., were exposed to freshly hatched larvae of P. decipiens. Exsheathed larvae of the parasite were subsequently detected in the haemocoel of 12 harpacticoid species including Danielsennia typica, Tisbe furcata, Ameira longipes, Enhydrosoma curticauda, and various undescribed species of the genera Halectinosoma, Tisbe, Alteutha, and Phyllothallestris and the family Diosaccidae. Phocanema decipiens also occurred in a cyclopoid copepod (Paracyclopina sp.) but calanoid copepods (Eurytemora sp. and Pseudocalanus sp.) did not become infected. The heaviest infections occurred in mature female copepods and prevalence and intensity of infection varied with host species. Adult male copepods and fifth copepodite females were lightly infected. Infected copepods survived for 3–7 days at 15 °C, 10–15 days at 10 °C, and 20–35 days at 5 °C. During the course of infection, larval P. decipiens grew an average of 60% and maximum of 130% in length but underwent little or no morphological change. Article in Journal/Newspaper Phoca vitulina Copepods Tisbe furcata Canadian Science Publishing West Arm ENVELOPE(62.863,62.863,-67.600,-67.600) Canadian Journal of Zoology 60 4 502 509 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Gravid female Phocanema decipiens were recovered from the stomachs of freshly killed harbour (Phoca vitulina) and grey seals (Halichoerus grypus). Ova dissected from the nematodes were incubated in seawater and the mean time to hatch varied from 8 days at 20 °C to 52 days at 5 °C. Posthatch survival of ensheathed larvae in seawater varied from 48 h at 20 °C to 140 days at 5 °C. Fifteen species of copepods collected from the North West Arm, Halifax, N.S., were exposed to freshly hatched larvae of P. decipiens. Exsheathed larvae of the parasite were subsequently detected in the haemocoel of 12 harpacticoid species including Danielsennia typica, Tisbe furcata, Ameira longipes, Enhydrosoma curticauda, and various undescribed species of the genera Halectinosoma, Tisbe, Alteutha, and Phyllothallestris and the family Diosaccidae. Phocanema decipiens also occurred in a cyclopoid copepod (Paracyclopina sp.) but calanoid copepods (Eurytemora sp. and Pseudocalanus sp.) did not become infected. The heaviest infections occurred in mature female copepods and prevalence and intensity of infection varied with host species. Adult male copepods and fifth copepodite females were lightly infected. Infected copepods survived for 3–7 days at 15 °C, 10–15 days at 10 °C, and 20–35 days at 5 °C. During the course of infection, larval P. decipiens grew an average of 60% and maximum of 130% in length but underwent little or no morphological change. |
format |
Article in Journal/Newspaper |
author |
McClelland, Gary |
spellingShingle |
McClelland, Gary Phocanema decipiens (Nematoda: Anisakinae): experimental infections in marine copepods |
author_facet |
McClelland, Gary |
author_sort |
McClelland, Gary |
title |
Phocanema decipiens (Nematoda: Anisakinae): experimental infections in marine copepods |
title_short |
Phocanema decipiens (Nematoda: Anisakinae): experimental infections in marine copepods |
title_full |
Phocanema decipiens (Nematoda: Anisakinae): experimental infections in marine copepods |
title_fullStr |
Phocanema decipiens (Nematoda: Anisakinae): experimental infections in marine copepods |
title_full_unstemmed |
Phocanema decipiens (Nematoda: Anisakinae): experimental infections in marine copepods |
title_sort |
phocanema decipiens (nematoda: anisakinae): experimental infections in marine copepods |
publisher |
Canadian Science Publishing |
publishDate |
1982 |
url |
http://dx.doi.org/10.1139/z82-075 http://www.nrcresearchpress.com/doi/pdf/10.1139/z82-075 |
long_lat |
ENVELOPE(62.863,62.863,-67.600,-67.600) |
geographic |
West Arm |
geographic_facet |
West Arm |
genre |
Phoca vitulina Copepods Tisbe furcata |
genre_facet |
Phoca vitulina Copepods Tisbe furcata |
op_source |
Canadian Journal of Zoology volume 60, issue 4, page 502-509 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z82-075 |
container_title |
Canadian Journal of Zoology |
container_volume |
60 |
container_issue |
4 |
container_start_page |
502 |
op_container_end_page |
509 |
_version_ |
1811643754019291136 |