Regulation compliance by vessels and disturbance of harbour seals ( Phoca vitulina )
The US National Oceanic and Atmospheric Administration established a buffer zone around marine mammals to prevent harassment. The buffer zone varies by species listing status and by geographic area. However, it is unknown the extent to which vessels comply with these buffer zones. We selected harbor...
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Canadian Science Publishing
2007
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Online Access: | http://dx.doi.org/10.1139/z06-213 http://www.nrcresearchpress.com/doi/full-xml/10.1139/Z06-213 http://www.nrcresearchpress.com/doi/pdf/10.1139/Z06-213 |
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crcansciencepubl:10.1139/z06-213 2023-12-17T10:48:43+01:00 Regulation compliance by vessels and disturbance of harbour seals ( Phoca vitulina ) Johnson, Amber Acevedo-Gutiérrez, Alejandro 2007 http://dx.doi.org/10.1139/z06-213 http://www.nrcresearchpress.com/doi/full-xml/10.1139/Z06-213 http://www.nrcresearchpress.com/doi/pdf/10.1139/Z06-213 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Zoology volume 85, issue 2, page 290-294 ISSN 0008-4301 1480-3283 Animal Science and Zoology Ecology, Evolution, Behavior and Systematics journal-article 2007 crcansciencepubl https://doi.org/10.1139/z06-213 2023-11-19T13:38:49Z The US National Oceanic and Atmospheric Administration established a buffer zone around marine mammals to prevent harassment. The buffer zone varies by species listing status and by geographic area. However, it is unknown the extent to which vessels comply with these buffer zones. We selected harbor seals ( Phoca vitulina L., 1758) as a case study to describe compliance with the buffer zone. We conducted land-based observations from Yellow Island, Washington State, in a geographic area where the buffer zone is 91 m (100 yards), to estimate vessel distance from hauled-out seals and to evaluate seal response. We recorded 85.7% of kayaks, 57.1% of stopped powerboats, and 4.6% of passing powerboats violating the buffer zone. Seals were disturbed by kayaks and stopped powerboats at distances >91 m from the haul-out sites but not by moving powerboats ≤91 m from the sites. Hence, compliance of the buffer zone varied with vessel type and vessel activity. We suggest that a larger buffer zone for vessels lingering around the haul-out sites and enforcement of the buffer zone will minimize seal disturbance. Article in Journal/Newspaper Phoca vitulina Canadian Science Publishing (via Crossref) Canadian Journal of Zoology 85 2 290 294 |
institution |
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 Johnson, Amber Acevedo-Gutiérrez, Alejandro Regulation compliance by vessels and disturbance of harbour seals ( Phoca vitulina ) |
topic_facet |
Animal Science and Zoology Ecology, Evolution, Behavior and Systematics |
description |
The US National Oceanic and Atmospheric Administration established a buffer zone around marine mammals to prevent harassment. The buffer zone varies by species listing status and by geographic area. However, it is unknown the extent to which vessels comply with these buffer zones. We selected harbor seals ( Phoca vitulina L., 1758) as a case study to describe compliance with the buffer zone. We conducted land-based observations from Yellow Island, Washington State, in a geographic area where the buffer zone is 91 m (100 yards), to estimate vessel distance from hauled-out seals and to evaluate seal response. We recorded 85.7% of kayaks, 57.1% of stopped powerboats, and 4.6% of passing powerboats violating the buffer zone. Seals were disturbed by kayaks and stopped powerboats at distances >91 m from the haul-out sites but not by moving powerboats ≤91 m from the sites. Hence, compliance of the buffer zone varied with vessel type and vessel activity. We suggest that a larger buffer zone for vessels lingering around the haul-out sites and enforcement of the buffer zone will minimize seal disturbance. |
format |
Article in Journal/Newspaper |
author |
Johnson, Amber Acevedo-Gutiérrez, Alejandro |
author_facet |
Johnson, Amber Acevedo-Gutiérrez, Alejandro |
author_sort |
Johnson, Amber |
title |
Regulation compliance by vessels and disturbance of harbour seals ( Phoca vitulina ) |
title_short |
Regulation compliance by vessels and disturbance of harbour seals ( Phoca vitulina ) |
title_full |
Regulation compliance by vessels and disturbance of harbour seals ( Phoca vitulina ) |
title_fullStr |
Regulation compliance by vessels and disturbance of harbour seals ( Phoca vitulina ) |
title_full_unstemmed |
Regulation compliance by vessels and disturbance of harbour seals ( Phoca vitulina ) |
title_sort |
regulation compliance by vessels and disturbance of harbour seals ( phoca vitulina ) |
publisher |
Canadian Science Publishing |
publishDate |
2007 |
url |
http://dx.doi.org/10.1139/z06-213 http://www.nrcresearchpress.com/doi/full-xml/10.1139/Z06-213 http://www.nrcresearchpress.com/doi/pdf/10.1139/Z06-213 |
genre |
Phoca vitulina |
genre_facet |
Phoca vitulina |
op_source |
Canadian Journal of Zoology volume 85, issue 2, page 290-294 ISSN 0008-4301 1480-3283 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/z06-213 |
container_title |
Canadian Journal of Zoology |
container_volume |
85 |
container_issue |
2 |
container_start_page |
290 |
op_container_end_page |
294 |
_version_ |
1785572959502467072 |