Haulout behaviour of harbour seals ( Phoca vitulina ) during breeding and moult in Vesterålen, Norway
Haulout behaviour of harbour seals (Phoca vitulina) in Vesterålen, Norway, was investigated from1 July to 23 August 2003 using a combination of high- and low-tide counts performed from boat and elevated land positions, and hourly counts from the land positions through 12- or 24-h cycles at specific...
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Septentrio Academic Publishing
2010
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Online Access: | https://doi.org/10.7557/3.2695 https://doaj.org/article/19a22f0e0fbb411199508e9c4d0eec57 |
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ftdoajarticles:oai:doaj.org/article:19a22f0e0fbb411199508e9c4d0eec57 2023-05-15T17:58:52+02:00 Haulout behaviour of harbour seals ( Phoca vitulina ) during breeding and moult in Vesterålen, Norway Hanne-Grethe Mogren Ulf Lindstrøm Kjell Tormod Nilssen Tore Haug 2010-09-01T00:00:00Z https://doi.org/10.7557/3.2695 https://doaj.org/article/19a22f0e0fbb411199508e9c4d0eec57 EN eng Septentrio Academic Publishing https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2695 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 1560-2206 2309-2491 doi:10.7557/3.2695 https://doaj.org/article/19a22f0e0fbb411199508e9c4d0eec57 NAMMCO Scientific Publications, Vol 8, Iss 0, Pp 303-312 (2010) harbour seals Norway haulout behavior Ecology QH540-549.5 article 2010 ftdoajarticles https://doi.org/10.7557/3.2695 2022-12-31T13:44:26Z Haulout behaviour of harbour seals (Phoca vitulina) in Vesterålen, Norway, was investigated from1 July to 23 August 2003 using a combination of high- and low-tide counts performed from boat and elevated land positions, and hourly counts from the land positions through 12- or 24-h cycles at specific haulout sites. There were obvious contrasts in haulout patterns of the seals throughout the period. The number of seals hauled-out was considerably higher in the area in July (the pupping period) than during August when the moulting period started. Contrasting July, when numbers of seals hauled-out at low tide was clearly higher than at high tide, there were virtually no systematic differences in haulout numbers between high and low tides in August. Circadian patterns were weaker in August than in July as well. Low temperatures had significant adverse effects on haulout numbers both in July and August, whereas increased cloud cover resulted in fewer seals hauled-out in July, but more seals in August. Article in Journal/Newspaper Phoca vitulina Vesterålen Directory of Open Access Journals: DOAJ Articles Norway Vesterålen ENVELOPE(14.939,14.939,68.754,68.754) NAMMCO Scientific Publications 8 303 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
harbour seals Norway haulout behavior Ecology QH540-549.5 |
spellingShingle |
harbour seals Norway haulout behavior Ecology QH540-549.5 Hanne-Grethe Mogren Ulf Lindstrøm Kjell Tormod Nilssen Tore Haug Haulout behaviour of harbour seals ( Phoca vitulina ) during breeding and moult in Vesterålen, Norway |
topic_facet |
harbour seals Norway haulout behavior Ecology QH540-549.5 |
description |
Haulout behaviour of harbour seals (Phoca vitulina) in Vesterålen, Norway, was investigated from1 July to 23 August 2003 using a combination of high- and low-tide counts performed from boat and elevated land positions, and hourly counts from the land positions through 12- or 24-h cycles at specific haulout sites. There were obvious contrasts in haulout patterns of the seals throughout the period. The number of seals hauled-out was considerably higher in the area in July (the pupping period) than during August when the moulting period started. Contrasting July, when numbers of seals hauled-out at low tide was clearly higher than at high tide, there were virtually no systematic differences in haulout numbers between high and low tides in August. Circadian patterns were weaker in August than in July as well. Low temperatures had significant adverse effects on haulout numbers both in July and August, whereas increased cloud cover resulted in fewer seals hauled-out in July, but more seals in August. |
format |
Article in Journal/Newspaper |
author |
Hanne-Grethe Mogren Ulf Lindstrøm Kjell Tormod Nilssen Tore Haug |
author_facet |
Hanne-Grethe Mogren Ulf Lindstrøm Kjell Tormod Nilssen Tore Haug |
author_sort |
Hanne-Grethe Mogren |
title |
Haulout behaviour of harbour seals ( Phoca vitulina ) during breeding and moult in Vesterålen, Norway |
title_short |
Haulout behaviour of harbour seals ( Phoca vitulina ) during breeding and moult in Vesterålen, Norway |
title_full |
Haulout behaviour of harbour seals ( Phoca vitulina ) during breeding and moult in Vesterålen, Norway |
title_fullStr |
Haulout behaviour of harbour seals ( Phoca vitulina ) during breeding and moult in Vesterålen, Norway |
title_full_unstemmed |
Haulout behaviour of harbour seals ( Phoca vitulina ) during breeding and moult in Vesterålen, Norway |
title_sort |
haulout behaviour of harbour seals ( phoca vitulina ) during breeding and moult in vesterålen, norway |
publisher |
Septentrio Academic Publishing |
publishDate |
2010 |
url |
https://doi.org/10.7557/3.2695 https://doaj.org/article/19a22f0e0fbb411199508e9c4d0eec57 |
long_lat |
ENVELOPE(14.939,14.939,68.754,68.754) |
geographic |
Norway Vesterålen |
geographic_facet |
Norway Vesterålen |
genre |
Phoca vitulina Vesterålen |
genre_facet |
Phoca vitulina Vesterålen |
op_source |
NAMMCO Scientific Publications, Vol 8, Iss 0, Pp 303-312 (2010) |
op_relation |
https://septentrio.uit.no/index.php/NAMMCOSP/article/view/2695 https://doaj.org/toc/1560-2206 https://doaj.org/toc/2309-2491 1560-2206 2309-2491 doi:10.7557/3.2695 https://doaj.org/article/19a22f0e0fbb411199508e9c4d0eec57 |
op_doi |
https://doi.org/10.7557/3.2695 |
container_title |
NAMMCO Scientific Publications |
container_volume |
8 |
container_start_page |
303 |
_version_ |
1766167581770645504 |