Estimating the cost of growth in southern right whales from drone photogrammetry data and long-term sighting histories
Animal body size and growth patterns play important roles in shaping the life history of species. Baleen whales include the largest animals on the planet, with somatic growth costs expected to be substantial. We used unmanned aerial vehicle photogrammetry and long-term individual sighting histories...
Published in: | Marine Ecology Progress Series |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
2022
|
Subjects: | |
Online Access: | https://pure.au.dk/portal/en/publications/e5726b45-93fa-434e-8657-877ebef1c756 https://doi.org/10.3354/meps14009 https://pure.au.dk/ws/files/369355771/Manuscript_F_Christiansen.pdf http://www.scopus.com/inward/record.url?scp=85127418918&partnerID=8YFLogxK |
id |
ftuniaarhuspubl:oai:pure.atira.dk:publications/e5726b45-93fa-434e-8657-877ebef1c756 |
---|---|
record_format |
openpolar |
spelling |
ftuniaarhuspubl:oai:pure.atira.dk:publications/e5726b45-93fa-434e-8657-877ebef1c756 2024-05-19T07:38:02+00:00 Estimating the cost of growth in southern right whales from drone photogrammetry data and long-term sighting histories Christiansen, Fredrik Bejder, Lars Burnell, Stephen Ward, Rhianne Charlton, Claire 2022 application/pdf https://pure.au.dk/portal/en/publications/e5726b45-93fa-434e-8657-877ebef1c756 https://doi.org/10.3354/meps14009 https://pure.au.dk/ws/files/369355771/Manuscript_F_Christiansen.pdf http://www.scopus.com/inward/record.url?scp=85127418918&partnerID=8YFLogxK eng eng https://pure.au.dk/portal/en/publications/e5726b45-93fa-434e-8657-877ebef1c756 info:eu-repo/semantics/openAccess Christiansen , F , Bejder , L , Burnell , S , Ward , R & Charlton , C 2022 , ' Estimating the cost of growth in southern right whales from drone photogrammetry data and long-term sighting histories ' , Marine Ecology Progress Series , vol. 687 , pp. 173-194 . https://doi.org/10.3354/meps14009 Baleen whales Bioenergetics Body length Body mass Body size Eubalaena australis Growth models Life histories Morphometrics Unmanned aerial vehicle article 2022 ftuniaarhuspubl https://doi.org/10.3354/meps14009 2024-05-01T23:48:43Z Animal body size and growth patterns play important roles in shaping the life history of species. Baleen whales include the largest animals on the planet, with somatic growth costs expected to be substantial. We used unmanned aerial vehicle photogrammetry and long-term individual sighting histories from photo identification (1991-2019) to estimate the cost of somatic growth for southern right whales (SRWs) Eubalaena australis. A Richards length-at-age growth model was developed, based on 161 calves, 20 yearlings, 1 juvenile and 23 adults, ranging in age from newborn to 27 yr. Predicted lengths were 4.7 m at birth, 12.5 m at minimum age of first parturition (6 yr) and an asymptotic length of 14.3 m. A volume-at-age curve was estimated from the body volume versus length relationship, and converted to a mass-at-age curve, using data on body tissue composition of North Pacific right whales E. japonica (n = 13). The energetic cost of growth was estimated using published estimates of tissue lipid and protein concentrations. The cost of growth for SRWs (in MJ d -1 ) was 2112 at birth, 544 at 4 mo, 314 at 1 yr (~weaning age), 108 at 5 yr (minimum age of sexual maturity), 51.5 at 10 yr and 5.2 at 30 yr. The cumulative cost to age 30 was 764.3 GJ, but varied widely (458-995 GJ) depending on the tissue energy content. Our estimates represent a healthy SRW population, and provide a baseline to investigate individual and population level impacts of anthropogenic disturbance (including climate change). Article in Journal/Newspaper baleen whales Aarhus University: Research Marine Ecology Progress Series 687 173 194 |
institution |
Open Polar |
collection |
Aarhus University: Research |
op_collection_id |
ftuniaarhuspubl |
language |
English |
topic |
Baleen whales Bioenergetics Body length Body mass Body size Eubalaena australis Growth models Life histories Morphometrics Unmanned aerial vehicle |
spellingShingle |
Baleen whales Bioenergetics Body length Body mass Body size Eubalaena australis Growth models Life histories Morphometrics Unmanned aerial vehicle Christiansen, Fredrik Bejder, Lars Burnell, Stephen Ward, Rhianne Charlton, Claire Estimating the cost of growth in southern right whales from drone photogrammetry data and long-term sighting histories |
topic_facet |
Baleen whales Bioenergetics Body length Body mass Body size Eubalaena australis Growth models Life histories Morphometrics Unmanned aerial vehicle |
description |
Animal body size and growth patterns play important roles in shaping the life history of species. Baleen whales include the largest animals on the planet, with somatic growth costs expected to be substantial. We used unmanned aerial vehicle photogrammetry and long-term individual sighting histories from photo identification (1991-2019) to estimate the cost of somatic growth for southern right whales (SRWs) Eubalaena australis. A Richards length-at-age growth model was developed, based on 161 calves, 20 yearlings, 1 juvenile and 23 adults, ranging in age from newborn to 27 yr. Predicted lengths were 4.7 m at birth, 12.5 m at minimum age of first parturition (6 yr) and an asymptotic length of 14.3 m. A volume-at-age curve was estimated from the body volume versus length relationship, and converted to a mass-at-age curve, using data on body tissue composition of North Pacific right whales E. japonica (n = 13). The energetic cost of growth was estimated using published estimates of tissue lipid and protein concentrations. The cost of growth for SRWs (in MJ d -1 ) was 2112 at birth, 544 at 4 mo, 314 at 1 yr (~weaning age), 108 at 5 yr (minimum age of sexual maturity), 51.5 at 10 yr and 5.2 at 30 yr. The cumulative cost to age 30 was 764.3 GJ, but varied widely (458-995 GJ) depending on the tissue energy content. Our estimates represent a healthy SRW population, and provide a baseline to investigate individual and population level impacts of anthropogenic disturbance (including climate change). |
format |
Article in Journal/Newspaper |
author |
Christiansen, Fredrik Bejder, Lars Burnell, Stephen Ward, Rhianne Charlton, Claire |
author_facet |
Christiansen, Fredrik Bejder, Lars Burnell, Stephen Ward, Rhianne Charlton, Claire |
author_sort |
Christiansen, Fredrik |
title |
Estimating the cost of growth in southern right whales from drone photogrammetry data and long-term sighting histories |
title_short |
Estimating the cost of growth in southern right whales from drone photogrammetry data and long-term sighting histories |
title_full |
Estimating the cost of growth in southern right whales from drone photogrammetry data and long-term sighting histories |
title_fullStr |
Estimating the cost of growth in southern right whales from drone photogrammetry data and long-term sighting histories |
title_full_unstemmed |
Estimating the cost of growth in southern right whales from drone photogrammetry data and long-term sighting histories |
title_sort |
estimating the cost of growth in southern right whales from drone photogrammetry data and long-term sighting histories |
publishDate |
2022 |
url |
https://pure.au.dk/portal/en/publications/e5726b45-93fa-434e-8657-877ebef1c756 https://doi.org/10.3354/meps14009 https://pure.au.dk/ws/files/369355771/Manuscript_F_Christiansen.pdf http://www.scopus.com/inward/record.url?scp=85127418918&partnerID=8YFLogxK |
genre |
baleen whales |
genre_facet |
baleen whales |
op_source |
Christiansen , F , Bejder , L , Burnell , S , Ward , R & Charlton , C 2022 , ' Estimating the cost of growth in southern right whales from drone photogrammetry data and long-term sighting histories ' , Marine Ecology Progress Series , vol. 687 , pp. 173-194 . https://doi.org/10.3354/meps14009 |
op_relation |
https://pure.au.dk/portal/en/publications/e5726b45-93fa-434e-8657-877ebef1c756 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/meps14009 |
container_title |
Marine Ecology Progress Series |
container_volume |
687 |
container_start_page |
173 |
op_container_end_page |
194 |
_version_ |
1799477418791010304 |