Implantation date, growth rate, and allometric relationships in foetal Northwest Atlantic harp seals ( Phoca groenlandica )
Using a sample of 150 female and 141 male foetal Northwest Atlantic harp seals (Phoca groenlandica) collected between October and February of 1980-1995, we determined that the allometric relationship between total body mass and standard length did not differ between sexes and did not differ from the...
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crcansciencepubl:10.1139/z99-227 2023-12-17T10:47:35+01:00 Implantation date, growth rate, and allometric relationships in foetal Northwest Atlantic harp seals ( Phoca groenlandica ) Chabot, Denis Stenson, Garry B 2000 http://dx.doi.org/10.1139/z99-227 http://www.nrcresearchpress.com/doi/pdf/10.1139/z99-227 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 78, issue 3, page 501-505 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2000 crcansciencepubl https://doi.org/10.1139/z99-227 2023-11-19T13:38:46Z Using a sample of 150 female and 141 male foetal Northwest Atlantic harp seals (Phoca groenlandica) collected between October and February of 1980-1995, we determined that the allometric relationship between total body mass and standard length did not differ between sexes and did not differ from the relationship calculated for foetal harp seals from the study of Stewart and co-workers (R.E.A. Stewart, B.E. Stewart, D.M. Lavigne, and G.W. Miller. 1989. Can. J. Zool. 67: 2147-2157). Combining the data for foetuses from both studies, the exponent of the mass-length relationship was 2.75, significantly different from 3. Except for very small foetuses (<20 cm) standard length and mass 1/2.75 increased linearly as gestation progressed. Equations are provided to estimate standard length and total mass of foetuses in the period August-February and to estimate sculp mass, core mass, and axillary girth from length for the period October-February. The most reliable estimate of implantation date (day 223, 11 August) was obtained by regressing sampling date 1/2 on mass 1/2.75 . Article in Journal/Newspaper Northwest Atlantic Phoca groenlandica Canadian Science Publishing (via Crossref) Canadian Journal of Zoology 78 3 501 505 |
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Open Polar |
collection |
Canadian Science Publishing (via Crossref) |
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 Chabot, Denis Stenson, Garry B Implantation date, growth rate, and allometric relationships in foetal Northwest Atlantic harp seals ( Phoca groenlandica ) |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
Using a sample of 150 female and 141 male foetal Northwest Atlantic harp seals (Phoca groenlandica) collected between October and February of 1980-1995, we determined that the allometric relationship between total body mass and standard length did not differ between sexes and did not differ from the relationship calculated for foetal harp seals from the study of Stewart and co-workers (R.E.A. Stewart, B.E. Stewart, D.M. Lavigne, and G.W. Miller. 1989. Can. J. Zool. 67: 2147-2157). Combining the data for foetuses from both studies, the exponent of the mass-length relationship was 2.75, significantly different from 3. Except for very small foetuses (<20 cm) standard length and mass 1/2.75 increased linearly as gestation progressed. Equations are provided to estimate standard length and total mass of foetuses in the period August-February and to estimate sculp mass, core mass, and axillary girth from length for the period October-February. The most reliable estimate of implantation date (day 223, 11 August) was obtained by regressing sampling date 1/2 on mass 1/2.75 . |
format |
Article in Journal/Newspaper |
author |
Chabot, Denis Stenson, Garry B |
author_facet |
Chabot, Denis Stenson, Garry B |
author_sort |
Chabot, Denis |
title |
Implantation date, growth rate, and allometric relationships in foetal Northwest Atlantic harp seals ( Phoca groenlandica ) |
title_short |
Implantation date, growth rate, and allometric relationships in foetal Northwest Atlantic harp seals ( Phoca groenlandica ) |
title_full |
Implantation date, growth rate, and allometric relationships in foetal Northwest Atlantic harp seals ( Phoca groenlandica ) |
title_fullStr |
Implantation date, growth rate, and allometric relationships in foetal Northwest Atlantic harp seals ( Phoca groenlandica ) |
title_full_unstemmed |
Implantation date, growth rate, and allometric relationships in foetal Northwest Atlantic harp seals ( Phoca groenlandica ) |
title_sort |
implantation date, growth rate, and allometric relationships in foetal northwest atlantic harp seals ( phoca groenlandica ) |
publisher |
Canadian Science Publishing |
publishDate |
2000 |
url |
http://dx.doi.org/10.1139/z99-227 http://www.nrcresearchpress.com/doi/pdf/10.1139/z99-227 |
genre |
Northwest Atlantic Phoca groenlandica |
genre_facet |
Northwest Atlantic Phoca groenlandica |
op_source |
Canadian Journal of Zoology volume 78, issue 3, page 501-505 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z99-227 |
container_title |
Canadian Journal of Zoology |
container_volume |
78 |
container_issue |
3 |
container_start_page |
501 |
op_container_end_page |
505 |
_version_ |
1785571487794593792 |