Data_Sheet_1_Energetic Effects of Whale-Watching Boats on Humpback Whales on a Breeding Ground.xlsx
Interactions between whale-watching boats and cetaceans can lead to changes in their behavior. From a management perspective, it is important to understand how this type of disturbance can be translated into physiological effects, such as changes in their energetic metabolism. Humpback whales (Megap...
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ftfrontimediafig:oai:figshare.com:article/13553132 2023-05-15T15:36:59+02:00 Data_Sheet_1_Energetic Effects of Whale-Watching Boats on Humpback Whales on a Breeding Ground.xlsx Damian Villagra Ana García-Cegarra Diego I. Gallardo Aldo S. Pacheco 2021-01-11T05:45:46Z https://doi.org/10.3389/fmars.2020.600508.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Energetic_Effects_of_Whale-Watching_Boats_on_Humpback_Whales_on_a_Breeding_Ground_xlsx/13553132 unknown doi:10.3389/fmars.2020.600508.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Energetic_Effects_of_Whale-Watching_Boats_on_Humpback_Whales_on_a_Breeding_Ground_xlsx/13553132 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering mass-specific cost of transport optimal swimming speed efficiency of transport anthropogenic perturbation energy consumption baleen whale Dataset 2021 ftfrontimediafig https://doi.org/10.3389/fmars.2020.600508.s001 2021-01-13T23:58:40Z Interactions between whale-watching boats and cetaceans can lead to changes in their behavior. From a management perspective, it is important to understand how this type of disturbance can be translated into physiological effects, such as changes in their energetic metabolism. Humpback whales (Megaptera novaeangliae) typically do not feed while in breeding grounds, thus they depend on finite energy reserves. The effect of whale-watching boats on the energetic metabolism of humpback whales, in the breeding ground of northern Peru (4°10′35″S, 81°08′03″W) was evaluated. Groups of humpback whales were tracked from land, under the following scenarios: with, without, and before-during-after the presence of whale-watching boats. Mass-specific cost of transport (COT) was used as a proxy of energetic efficiency and calculated from swimming speed and breath frequency estimations. No differences were detected in breath frequency, swimming speed, and COT when comparing whales with and without boats. However, in the presence of boats, swim speed increased, and COT decreased as the number of boats increased. Exponential increment in breathing frequency at higher swimming speed was not detected. The absence of swimming speeds beyond the assumed optimal range suggested no shifts into metabolic inefficiency. Our results suggest optimal swimming speed between 2 and 4.05 m/s, representing COT values between 0.020 and 0.041 J × (kg × m) –1 . In light of our results, we encourage the implementation of regulations of the activity, particularly limiting the number of boats interacting with the same group of humpback whales. Dataset baleen whale Megaptera novaeangliae Frontiers: Figshare |
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 mass-specific cost of transport optimal swimming speed efficiency of transport anthropogenic perturbation energy consumption baleen whale |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering mass-specific cost of transport optimal swimming speed efficiency of transport anthropogenic perturbation energy consumption baleen whale Damian Villagra Ana García-Cegarra Diego I. Gallardo Aldo S. Pacheco Data_Sheet_1_Energetic Effects of Whale-Watching Boats on Humpback Whales on a Breeding Ground.xlsx |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering mass-specific cost of transport optimal swimming speed efficiency of transport anthropogenic perturbation energy consumption baleen whale |
description |
Interactions between whale-watching boats and cetaceans can lead to changes in their behavior. From a management perspective, it is important to understand how this type of disturbance can be translated into physiological effects, such as changes in their energetic metabolism. Humpback whales (Megaptera novaeangliae) typically do not feed while in breeding grounds, thus they depend on finite energy reserves. The effect of whale-watching boats on the energetic metabolism of humpback whales, in the breeding ground of northern Peru (4°10′35″S, 81°08′03″W) was evaluated. Groups of humpback whales were tracked from land, under the following scenarios: with, without, and before-during-after the presence of whale-watching boats. Mass-specific cost of transport (COT) was used as a proxy of energetic efficiency and calculated from swimming speed and breath frequency estimations. No differences were detected in breath frequency, swimming speed, and COT when comparing whales with and without boats. However, in the presence of boats, swim speed increased, and COT decreased as the number of boats increased. Exponential increment in breathing frequency at higher swimming speed was not detected. The absence of swimming speeds beyond the assumed optimal range suggested no shifts into metabolic inefficiency. Our results suggest optimal swimming speed between 2 and 4.05 m/s, representing COT values between 0.020 and 0.041 J × (kg × m) –1 . In light of our results, we encourage the implementation of regulations of the activity, particularly limiting the number of boats interacting with the same group of humpback whales. |
format |
Dataset |
author |
Damian Villagra Ana García-Cegarra Diego I. Gallardo Aldo S. Pacheco |
author_facet |
Damian Villagra Ana García-Cegarra Diego I. Gallardo Aldo S. Pacheco |
author_sort |
Damian Villagra |
title |
Data_Sheet_1_Energetic Effects of Whale-Watching Boats on Humpback Whales on a Breeding Ground.xlsx |
title_short |
Data_Sheet_1_Energetic Effects of Whale-Watching Boats on Humpback Whales on a Breeding Ground.xlsx |
title_full |
Data_Sheet_1_Energetic Effects of Whale-Watching Boats on Humpback Whales on a Breeding Ground.xlsx |
title_fullStr |
Data_Sheet_1_Energetic Effects of Whale-Watching Boats on Humpback Whales on a Breeding Ground.xlsx |
title_full_unstemmed |
Data_Sheet_1_Energetic Effects of Whale-Watching Boats on Humpback Whales on a Breeding Ground.xlsx |
title_sort |
data_sheet_1_energetic effects of whale-watching boats on humpback whales on a breeding ground.xlsx |
publishDate |
2021 |
url |
https://doi.org/10.3389/fmars.2020.600508.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Energetic_Effects_of_Whale-Watching_Boats_on_Humpback_Whales_on_a_Breeding_Ground_xlsx/13553132 |
genre |
baleen whale Megaptera novaeangliae |
genre_facet |
baleen whale Megaptera novaeangliae |
op_relation |
doi:10.3389/fmars.2020.600508.s001 https://figshare.com/articles/dataset/Data_Sheet_1_Energetic_Effects_of_Whale-Watching_Boats_on_Humpback_Whales_on_a_Breeding_Ground_xlsx/13553132 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2020.600508.s001 |
_version_ |
1766367416675205120 |