North Atlantic humpback whale abundance and rate of increase four decades after protection from whaling
Humpback whales Megaptera novaeangliae in the North Atlantic Ocean were severely depleted by exploitation. With legal protection since 1955, substantial recovery is likely to have occurred, but information on abundance and rates of increase has been limited. We present an assessment of humpback whal...
Published in: | Marine Ecology Progress Series |
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Main Authors: | , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2003
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Online Access: | https://hdl.handle.net/11370/9bc474e3-81a5-40b7-944b-55c057ef7ce4 https://research.rug.nl/en/publications/9bc474e3-81a5-40b7-944b-55c057ef7ce4 https://doi.org/10.3354/meps258263 https://pure.rug.nl/ws/files/62522890/North_Atlantic_humpback_whale_abundance_and_rate_of_increase_four_decades_after_protection_from_whaling.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/9bc474e3-81a5-40b7-944b-55c057ef7ce4 2024-09-15T18:11:11+00:00 North Atlantic humpback whale abundance and rate of increase four decades after protection from whaling Stevick, PT Allen, J Clapham, PJ Friday, N Katona, SK Larsen, F Lien, J Mattila, DK Palsboll, PJ Sigurjonsson, J Smith, TD Oien, N Hammond, PS 2003-08-29 application/pdf https://hdl.handle.net/11370/9bc474e3-81a5-40b7-944b-55c057ef7ce4 https://research.rug.nl/en/publications/9bc474e3-81a5-40b7-944b-55c057ef7ce4 https://doi.org/10.3354/meps258263 https://pure.rug.nl/ws/files/62522890/North_Atlantic_humpback_whale_abundance_and_rate_of_increase_four_decades_after_protection_from_whaling.pdf eng eng https://research.rug.nl/en/publications/9bc474e3-81a5-40b7-944b-55c057ef7ce4 info:eu-repo/semantics/openAccess Stevick , PT , Allen , J , Clapham , PJ , Friday , N , Katona , SK , Larsen , F , Lien , J , Mattila , DK , Palsboll , PJ , Sigurjonsson , J , Smith , TD , Oien , N & Hammond , PS 2003 , ' North Atlantic humpback whale abundance and rate of increase four decades after protection from whaling ' , Marine Ecology Progress Series , vol. 258 , pp. 263-273 . https://doi.org/10.3354/meps258263 abundance estimation population increase humpback whale capture-recapture MEGAPTERA-NOVAEANGLIAE HAWAIIAN-ISLANDS RECAPTURE MIGRATION IDENTIFICATION article 2003 ftunigroningenpu https://doi.org/10.3354/meps258263 2024-07-01T14:49:22Z Humpback whales Megaptera novaeangliae in the North Atlantic Ocean were severely depleted by exploitation. With legal protection since 1955, substantial recovery is likely to have occurred, but information on abundance and rates of increase has been limited. We present an assessment of humpback whale abundance in the North Atlantic Ocean based upon capture-recapture estimates using naturally marked individuals. These data result from a long-term collaborative effort combining large-scale dedicated projects and incidental data collection, leading to extensive geographical coverage. The application of robust statistical techniques produces estimates of greater accuracy and precision than has previously been possible. Abundance estimates ranging from 5930 to 12 580 individuals, with coefficients of variation (CVs) from 0.07 to 0.39, were calculated for the West Indies breeding population using data from 1979 to 1993. The most precise estimate for the West Indies breeding population is 10 752 (CV = 0.068) for 1992 and 1993. Due to application of new analytical methods, these estimates are larger and more precise than those previously published from similar time periods. The average rate of increase for the West Indies breeding population over a 14 yr period was estimated to be 0.031 (SE = 0.005). The best available estimate for the entire North Atlantic population of humpback whales is 11570 (95% CI 10 290 to 13 390) based upon samples from 1992 and 1993. However, this estimate may be biased downwards to an unknown extent due to heterogeneity in capture probabilities that do not influence the West Indies estimates. Article in Journal/Newspaper Humpback Whale Megaptera novaeangliae North Atlantic University of Groningen research database Marine Ecology Progress Series 258 263 273 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
abundance estimation population increase humpback whale capture-recapture MEGAPTERA-NOVAEANGLIAE HAWAIIAN-ISLANDS RECAPTURE MIGRATION IDENTIFICATION |
spellingShingle |
abundance estimation population increase humpback whale capture-recapture MEGAPTERA-NOVAEANGLIAE HAWAIIAN-ISLANDS RECAPTURE MIGRATION IDENTIFICATION Stevick, PT Allen, J Clapham, PJ Friday, N Katona, SK Larsen, F Lien, J Mattila, DK Palsboll, PJ Sigurjonsson, J Smith, TD Oien, N Hammond, PS North Atlantic humpback whale abundance and rate of increase four decades after protection from whaling |
topic_facet |
abundance estimation population increase humpback whale capture-recapture MEGAPTERA-NOVAEANGLIAE HAWAIIAN-ISLANDS RECAPTURE MIGRATION IDENTIFICATION |
description |
Humpback whales Megaptera novaeangliae in the North Atlantic Ocean were severely depleted by exploitation. With legal protection since 1955, substantial recovery is likely to have occurred, but information on abundance and rates of increase has been limited. We present an assessment of humpback whale abundance in the North Atlantic Ocean based upon capture-recapture estimates using naturally marked individuals. These data result from a long-term collaborative effort combining large-scale dedicated projects and incidental data collection, leading to extensive geographical coverage. The application of robust statistical techniques produces estimates of greater accuracy and precision than has previously been possible. Abundance estimates ranging from 5930 to 12 580 individuals, with coefficients of variation (CVs) from 0.07 to 0.39, were calculated for the West Indies breeding population using data from 1979 to 1993. The most precise estimate for the West Indies breeding population is 10 752 (CV = 0.068) for 1992 and 1993. Due to application of new analytical methods, these estimates are larger and more precise than those previously published from similar time periods. The average rate of increase for the West Indies breeding population over a 14 yr period was estimated to be 0.031 (SE = 0.005). The best available estimate for the entire North Atlantic population of humpback whales is 11570 (95% CI 10 290 to 13 390) based upon samples from 1992 and 1993. However, this estimate may be biased downwards to an unknown extent due to heterogeneity in capture probabilities that do not influence the West Indies estimates. |
format |
Article in Journal/Newspaper |
author |
Stevick, PT Allen, J Clapham, PJ Friday, N Katona, SK Larsen, F Lien, J Mattila, DK Palsboll, PJ Sigurjonsson, J Smith, TD Oien, N Hammond, PS |
author_facet |
Stevick, PT Allen, J Clapham, PJ Friday, N Katona, SK Larsen, F Lien, J Mattila, DK Palsboll, PJ Sigurjonsson, J Smith, TD Oien, N Hammond, PS |
author_sort |
Stevick, PT |
title |
North Atlantic humpback whale abundance and rate of increase four decades after protection from whaling |
title_short |
North Atlantic humpback whale abundance and rate of increase four decades after protection from whaling |
title_full |
North Atlantic humpback whale abundance and rate of increase four decades after protection from whaling |
title_fullStr |
North Atlantic humpback whale abundance and rate of increase four decades after protection from whaling |
title_full_unstemmed |
North Atlantic humpback whale abundance and rate of increase four decades after protection from whaling |
title_sort |
north atlantic humpback whale abundance and rate of increase four decades after protection from whaling |
publishDate |
2003 |
url |
https://hdl.handle.net/11370/9bc474e3-81a5-40b7-944b-55c057ef7ce4 https://research.rug.nl/en/publications/9bc474e3-81a5-40b7-944b-55c057ef7ce4 https://doi.org/10.3354/meps258263 https://pure.rug.nl/ws/files/62522890/North_Atlantic_humpback_whale_abundance_and_rate_of_increase_four_decades_after_protection_from_whaling.pdf |
genre |
Humpback Whale Megaptera novaeangliae North Atlantic |
genre_facet |
Humpback Whale Megaptera novaeangliae North Atlantic |
op_source |
Stevick , PT , Allen , J , Clapham , PJ , Friday , N , Katona , SK , Larsen , F , Lien , J , Mattila , DK , Palsboll , PJ , Sigurjonsson , J , Smith , TD , Oien , N & Hammond , PS 2003 , ' North Atlantic humpback whale abundance and rate of increase four decades after protection from whaling ' , Marine Ecology Progress Series , vol. 258 , pp. 263-273 . https://doi.org/10.3354/meps258263 |
op_relation |
https://research.rug.nl/en/publications/9bc474e3-81a5-40b7-944b-55c057ef7ce4 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/meps258263 |
container_title |
Marine Ecology Progress Series |
container_volume |
258 |
container_start_page |
263 |
op_container_end_page |
273 |
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1810448778948247552 |