DataSheet1_Using satellite imagery to estimate abundance of Cumberland Sound beluga whales (Delphinapterus leucas) in 2021.pdf
The Cumberland Sound beluga whale (Delphinapterus leucas) population inhabits Cumberland Sound on the southeast side of Baffin Island, Nunavut. The population is listed as threatened under the Species at Risk Act. The last abundance estimate from an aerial survey was estimated at 1,381 (95% CI: 1,27...
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ftfrontimediafig:oai:figshare.com:article/27014473 2024-09-30T14:32:40+00:00 DataSheet1_Using satellite imagery to estimate abundance of Cumberland Sound beluga whales (Delphinapterus leucas) in 2021.pdf Bryanna A. H. Sherbo Amanda M. Belanger Bertrand Charry Cortney A. Watt 2024-09-13T09:23:36Z https://doi.org/10.3389/fmars.2024.1422907.s001 https://figshare.com/articles/dataset/DataSheet1_Using_satellite_imagery_to_estimate_abundance_of_Cumberland_Sound_beluga_whales_Delphinapterus_leucas_in_2021_pdf/27014473 unknown doi:10.3389/fmars.2024.1422907.s001 https://figshare.com/articles/dataset/DataSheet1_Using_satellite_imagery_to_estimate_abundance_of_Cumberland_Sound_beluga_whales_Delphinapterus_leucas_in_2021_pdf/27014473 CC BY 4.0 Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering abundance estimation imagery analysis whale detection very high resolution satellite imagery WorldView Dataset 2024 ftfrontimediafig https://doi.org/10.3389/fmars.2024.1422907.s001 2024-09-16T14:23:18Z The Cumberland Sound beluga whale (Delphinapterus leucas) population inhabits Cumberland Sound on the southeast side of Baffin Island, Nunavut. The population is listed as threatened under the Species at Risk Act. The last abundance estimate from an aerial survey was estimated at 1,381 (95% CI: 1,270-1,502) beluga whales in 2017 for an area covering 12,485 km 2 . Since then, satellite imagery has been used as a remotely based non-invasive method to monitor these whales. Very High Resolution (VHR) satellite imagery covering 9,690 km² of water was collected from Cumberland Sound from August 30 to September 7, 2021, during the ice free season. Readers with previous imagery analysis experience analyzed the images and identified 704 certain detections. Abundance estimates were corrected for availability bias for whales that were too deep to be detected in the imagery (>2m). We present a total estimate of 1,690 (CV = 0.16; 95% CI: 1,241-2,301) beluga whales in Cumberland Sound (22,663 km 2 ). This estimate covers a larger area and estimates a higher abundance than the 2017 aerial survey. Regular population abundance assessments are essential for understanding population dynamics and trends and we have shown here that satellite imagery is a comparable method to aerial surveys for estimating abundance. Dataset Baffin Island Baffin Beluga Beluga whale Beluga* Cumberland Sound Delphinapterus leucas Nunavut Frontiers: Figshare Nunavut Baffin Island Cumberland Sound ENVELOPE(-66.014,-66.014,65.334,65.334) |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering abundance estimation imagery analysis whale detection very high resolution satellite imagery WorldView |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering abundance estimation imagery analysis whale detection very high resolution satellite imagery WorldView Bryanna A. H. Sherbo Amanda M. Belanger Bertrand Charry Cortney A. Watt DataSheet1_Using satellite imagery to estimate abundance of Cumberland Sound beluga whales (Delphinapterus leucas) in 2021.pdf |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering abundance estimation imagery analysis whale detection very high resolution satellite imagery WorldView |
description |
The Cumberland Sound beluga whale (Delphinapterus leucas) population inhabits Cumberland Sound on the southeast side of Baffin Island, Nunavut. The population is listed as threatened under the Species at Risk Act. The last abundance estimate from an aerial survey was estimated at 1,381 (95% CI: 1,270-1,502) beluga whales in 2017 for an area covering 12,485 km 2 . Since then, satellite imagery has been used as a remotely based non-invasive method to monitor these whales. Very High Resolution (VHR) satellite imagery covering 9,690 km² of water was collected from Cumberland Sound from August 30 to September 7, 2021, during the ice free season. Readers with previous imagery analysis experience analyzed the images and identified 704 certain detections. Abundance estimates were corrected for availability bias for whales that were too deep to be detected in the imagery (>2m). We present a total estimate of 1,690 (CV = 0.16; 95% CI: 1,241-2,301) beluga whales in Cumberland Sound (22,663 km 2 ). This estimate covers a larger area and estimates a higher abundance than the 2017 aerial survey. Regular population abundance assessments are essential for understanding population dynamics and trends and we have shown here that satellite imagery is a comparable method to aerial surveys for estimating abundance. |
format |
Dataset |
author |
Bryanna A. H. Sherbo Amanda M. Belanger Bertrand Charry Cortney A. Watt |
author_facet |
Bryanna A. H. Sherbo Amanda M. Belanger Bertrand Charry Cortney A. Watt |
author_sort |
Bryanna A. H. Sherbo |
title |
DataSheet1_Using satellite imagery to estimate abundance of Cumberland Sound beluga whales (Delphinapterus leucas) in 2021.pdf |
title_short |
DataSheet1_Using satellite imagery to estimate abundance of Cumberland Sound beluga whales (Delphinapterus leucas) in 2021.pdf |
title_full |
DataSheet1_Using satellite imagery to estimate abundance of Cumberland Sound beluga whales (Delphinapterus leucas) in 2021.pdf |
title_fullStr |
DataSheet1_Using satellite imagery to estimate abundance of Cumberland Sound beluga whales (Delphinapterus leucas) in 2021.pdf |
title_full_unstemmed |
DataSheet1_Using satellite imagery to estimate abundance of Cumberland Sound beluga whales (Delphinapterus leucas) in 2021.pdf |
title_sort |
datasheet1_using satellite imagery to estimate abundance of cumberland sound beluga whales (delphinapterus leucas) in 2021.pdf |
publishDate |
2024 |
url |
https://doi.org/10.3389/fmars.2024.1422907.s001 https://figshare.com/articles/dataset/DataSheet1_Using_satellite_imagery_to_estimate_abundance_of_Cumberland_Sound_beluga_whales_Delphinapterus_leucas_in_2021_pdf/27014473 |
long_lat |
ENVELOPE(-66.014,-66.014,65.334,65.334) |
geographic |
Nunavut Baffin Island Cumberland Sound |
geographic_facet |
Nunavut Baffin Island Cumberland Sound |
genre |
Baffin Island Baffin Beluga Beluga whale Beluga* Cumberland Sound Delphinapterus leucas Nunavut |
genre_facet |
Baffin Island Baffin Beluga Beluga whale Beluga* Cumberland Sound Delphinapterus leucas Nunavut |
op_relation |
doi:10.3389/fmars.2024.1422907.s001 https://figshare.com/articles/dataset/DataSheet1_Using_satellite_imagery_to_estimate_abundance_of_Cumberland_Sound_beluga_whales_Delphinapterus_leucas_in_2021_pdf/27014473 |
op_rights |
CC BY 4.0 |
op_doi |
https://doi.org/10.3389/fmars.2024.1422907.s001 |
_version_ |
1811636755381616640 |