Vocalizing humpback whales (Megaptera novaeangliae) migrating from Antarctic feeding grounds arrive earlier and earlier in the Perth Canyon, Western Australia
Migratory species undertake seasonal, long-distance travel between feeding and breeding grounds, and time their arrivals with high-quality resources. The Breeding Stock D population of humpback whales (Megaptera novaeangliae) migrates from Antarctic to Western Australian waters every austral winter....
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ftdoajarticles:oai:doaj.org/article:b3e1da1150584fcf9a291a802f38f0a0 2023-05-15T13:44:42+02:00 Vocalizing humpback whales (Megaptera novaeangliae) migrating from Antarctic feeding grounds arrive earlier and earlier in the Perth Canyon, Western Australia Corinna Gosby Christine Erbe Euan S. Harvey Marcela Montserrat Figueroa Landero Robert D. McCauley 2022-12-01T00:00:00Z https://doi.org/10.3389/fmars.2022.1086763 https://doaj.org/article/b3e1da1150584fcf9a291a802f38f0a0 EN eng Frontiers Media S.A. https://www.frontiersin.org/articles/10.3389/fmars.2022.1086763/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.1086763 https://doaj.org/article/b3e1da1150584fcf9a291a802f38f0a0 Frontiers in Marine Science, Vol 9 (2022) humpback whale migration arrival acoustics Australia Antarctica Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2022 ftdoajarticles https://doi.org/10.3389/fmars.2022.1086763 2022-12-30T20:02:31Z Migratory species undertake seasonal, long-distance travel between feeding and breeding grounds, and time their arrivals with high-quality resources. The Breeding Stock D population of humpback whales (Megaptera novaeangliae) migrates from Antarctic to Western Australian waters every austral winter. Based on 16 years (2002-2017) of passive acoustic recordings in the Perth Canyon, Western Australia, the hourly presence/absence of humpback whale vocalizations was used as an indicator of inter-annual changes in migration timing. A trend of earlier arrivals in the Perth Canyon by 1.4 days/year during the northward migration and possibly earlier departures from the Perth Canyon during the southward migration was observed. A distance-based linear model and a generalized linear model (GLM) both identified sea surface temperature (SST) as the most significant predictor for acoustic presence in the Perth Canyon. A 1 °C increase in SST corresponded to a decrease in humpback whale acoustic presence by 4.4 hours/day. Mean SST at the peak of the humpback whale season in the Perth Canyon was 19 °C. Exploratory analysis of the metocean environment of the Antarctic feeding grounds suggested that whales were leaving the Antarctic at the end of the austral summer, as sea ice concentration (SIC) increased and SST decreased. Further research should investigate whether changes in the metocean conditions on Australian breeding grounds correspond to changing departures from the Perth Canyon during the southward migration. If environmental conditions on breeding and feeding grounds change out-of-sync, migrating whales might be unable to arrive at either ground during optimal conditions. Article in Journal/Newspaper Antarc* Antarctic Antarctica Humpback Whale Megaptera novaeangliae Sea ice Directory of Open Access Journals: DOAJ Articles Antarctic Austral The Antarctic Frontiers in Marine Science 9 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
humpback whale migration arrival acoustics Australia Antarctica Science Q General. Including nature conservation geographical distribution QH1-199.5 |
spellingShingle |
humpback whale migration arrival acoustics Australia Antarctica Science Q General. Including nature conservation geographical distribution QH1-199.5 Corinna Gosby Christine Erbe Euan S. Harvey Marcela Montserrat Figueroa Landero Robert D. McCauley Vocalizing humpback whales (Megaptera novaeangliae) migrating from Antarctic feeding grounds arrive earlier and earlier in the Perth Canyon, Western Australia |
topic_facet |
humpback whale migration arrival acoustics Australia Antarctica Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
Migratory species undertake seasonal, long-distance travel between feeding and breeding grounds, and time their arrivals with high-quality resources. The Breeding Stock D population of humpback whales (Megaptera novaeangliae) migrates from Antarctic to Western Australian waters every austral winter. Based on 16 years (2002-2017) of passive acoustic recordings in the Perth Canyon, Western Australia, the hourly presence/absence of humpback whale vocalizations was used as an indicator of inter-annual changes in migration timing. A trend of earlier arrivals in the Perth Canyon by 1.4 days/year during the northward migration and possibly earlier departures from the Perth Canyon during the southward migration was observed. A distance-based linear model and a generalized linear model (GLM) both identified sea surface temperature (SST) as the most significant predictor for acoustic presence in the Perth Canyon. A 1 °C increase in SST corresponded to a decrease in humpback whale acoustic presence by 4.4 hours/day. Mean SST at the peak of the humpback whale season in the Perth Canyon was 19 °C. Exploratory analysis of the metocean environment of the Antarctic feeding grounds suggested that whales were leaving the Antarctic at the end of the austral summer, as sea ice concentration (SIC) increased and SST decreased. Further research should investigate whether changes in the metocean conditions on Australian breeding grounds correspond to changing departures from the Perth Canyon during the southward migration. If environmental conditions on breeding and feeding grounds change out-of-sync, migrating whales might be unable to arrive at either ground during optimal conditions. |
format |
Article in Journal/Newspaper |
author |
Corinna Gosby Christine Erbe Euan S. Harvey Marcela Montserrat Figueroa Landero Robert D. McCauley |
author_facet |
Corinna Gosby Christine Erbe Euan S. Harvey Marcela Montserrat Figueroa Landero Robert D. McCauley |
author_sort |
Corinna Gosby |
title |
Vocalizing humpback whales (Megaptera novaeangliae) migrating from Antarctic feeding grounds arrive earlier and earlier in the Perth Canyon, Western Australia |
title_short |
Vocalizing humpback whales (Megaptera novaeangliae) migrating from Antarctic feeding grounds arrive earlier and earlier in the Perth Canyon, Western Australia |
title_full |
Vocalizing humpback whales (Megaptera novaeangliae) migrating from Antarctic feeding grounds arrive earlier and earlier in the Perth Canyon, Western Australia |
title_fullStr |
Vocalizing humpback whales (Megaptera novaeangliae) migrating from Antarctic feeding grounds arrive earlier and earlier in the Perth Canyon, Western Australia |
title_full_unstemmed |
Vocalizing humpback whales (Megaptera novaeangliae) migrating from Antarctic feeding grounds arrive earlier and earlier in the Perth Canyon, Western Australia |
title_sort |
vocalizing humpback whales (megaptera novaeangliae) migrating from antarctic feeding grounds arrive earlier and earlier in the perth canyon, western australia |
publisher |
Frontiers Media S.A. |
publishDate |
2022 |
url |
https://doi.org/10.3389/fmars.2022.1086763 https://doaj.org/article/b3e1da1150584fcf9a291a802f38f0a0 |
geographic |
Antarctic Austral The Antarctic |
geographic_facet |
Antarctic Austral The Antarctic |
genre |
Antarc* Antarctic Antarctica Humpback Whale Megaptera novaeangliae Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Humpback Whale Megaptera novaeangliae Sea ice |
op_source |
Frontiers in Marine Science, Vol 9 (2022) |
op_relation |
https://www.frontiersin.org/articles/10.3389/fmars.2022.1086763/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/fmars.2022.1086763 https://doaj.org/article/b3e1da1150584fcf9a291a802f38f0a0 |
op_doi |
https://doi.org/10.3389/fmars.2022.1086763 |
container_title |
Frontiers in Marine Science |
container_volume |
9 |
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1766204975508094976 |