Two’s company: first record of two free-swimming megamouth sharks, Megachasma pelagios (Lamniformes: Megachasmidae), off the California coast

On September 11, 2022, two megamouth sharks ( Megachasma pelagios ), estimated at 3.7–4.6 m TL, were observed swimming together near the surface about 39 km off the coast of San Diego, CA, USA. Megamouth sharks are rarely observed pelagic sharks, and the film from this encounter provided new insight...

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Veröffentlicht in:Environmental biology of fishes 2023-04, Vol.106 (4), p.717-724
Hauptverfasser: Skelton, Zachary R., Kacev, Dovi, Frable, Benjamin W., Chang, Andrew, Costescu, Valentin, Stabile, David, Ebert, David A.
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container_issue 4
container_start_page 717
container_title Environmental biology of fishes
container_volume 106
creator Skelton, Zachary R.
Kacev, Dovi
Frable, Benjamin W.
Chang, Andrew
Costescu, Valentin
Stabile, David
Ebert, David A.
description On September 11, 2022, two megamouth sharks ( Megachasma pelagios ), estimated at 3.7–4.6 m TL, were observed swimming together near the surface about 39 km off the coast of San Diego, CA, USA. Megamouth sharks are rarely observed pelagic sharks, and the film from this encounter provided new insight into the social behavior of this species. We attempt to put the behavior of these two individuals into the context of past sightings, known megamouth shark biology, and with analogous behavior observed in other shark and pelagic fish species.
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subjects Animal Systematics/Taxonomy/Biogeography
Biology
Biomedical and Life Sciences
California
Carnivorous animals
coasts
Commercial fishing
Environment
Fish
Fisheries
Fishing
Freshwater & Marine Ecology
Lamniformes
Life Sciences
Marine fishes
Megachasma pelagios
Megachasmidae
Nature Conservation
New records
Oceanography
Pelagic fish
Scars
Sharks
Social behavior
Social behaviour
species
Sport fishing
Swimming
Zoology
title Two’s company: first record of two free-swimming megamouth sharks, Megachasma pelagios (Lamniformes: Megachasmidae), off the California coast
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