Results 21 to 30 of about 28,203 (283)

Using Drones to Assess Volitional Swimming Kinematics of Manta Ray Behaviors in the Wild

open access: yesDrones, 2022
Drones have become increasingly popular tools to study marine megafauna but are underutilized in batoid research. We used drones to collect video data of manta ray (Mobula cf.
Vicky Fong   +2 more
doaj   +1 more source

Spotting the “small eyes”: using photo-ID methodology to study a wild population of smalleye stingrays (Megatrygon microps) in southern Mozambique [PDF]

open access: yesPeerJ, 2019
Background The smalleye stingray (Megatrygon microps) is a large and rare dasyatid ray, patchily distributed across the Indo-West Pacific. Free-swimming individuals have regularly been recorded in Southern Mozambican coastal waters utilizing different ...
Atlantine Boggio-Pasqua   +2 more
doaj   +2 more sources

The need for long-term population monitoring of the world’s largest fish

open access: yesEndangered Species Research, 2022
Many large marine species are vulnerable to anthropogenic pressures, and substantial declines have been documented across a range of taxa. Many of these species are also long-lived, have low individual resighting rates and high levels of individual ...
CA Rohner   +6 more
doaj   +1 more source

Thresholds for the presence of glacial megafauna in central Europe during the last 60,000 years

open access: yesScientific Reports, 2022
Lake sediment records from Holzmaar and the infilled maar of Auel (Eifel, Germany) are used to reconstruct landscape changes and megafauna abundances. Our data document a forested landscape from 60,000 to 48,000 yr b2k and a stepwise vegetation change ...
Frank Sirocko   +8 more
doaj   +1 more source

Animal community dynamics at senescent and active vents at the 9° N East Pacific Rise after a volcanic eruption [PDF]

open access: yes, 2020
© The Author(s), 2020. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Gollner, S., Govenar, B., Arbizu, P. M., Mullineaux, L.
Arbizu, P. Martinez   +8 more
core   +2 more sources

The Status of Marine Megafauna Research in Macaronesia: A Systematic Review

open access: yesFrontiers in Marine Science, 2022
Marine megafauna serve valuable ecological and economical roles globally, yet, many species have experienced precipitous population declines. The significance of marine megafauna is particularly evident in Macaronesia, a complex of oceanic archipelagos ...
Ashlie J. McIvor   +10 more
doaj   +1 more source

Investigating the benthic megafauna in the eastern Clarion Clipperton Fracture Zone (north-east Pacific) based on distribution models predicted with random forest

open access: yesScientific Reports, 2022
The eastern Clarion Clipperton Fracture Zone (CCZ) is a heterogeneous abyssal environment harbouring relatively low abundances of highly diverse megafauna communities.
Katja Uhlenkott   +3 more
doaj   +1 more source

Shaken, not stirred: blue whales show no acoustic response to earthquake events

open access: yesRoyal Society Open Science, 2022
Quantifying how animals respond to disturbance events bears relevance for understanding consequences to population health. We investigate whether blue whales respond acoustically to naturally occurring episodic noise by examining calling before and after
Dawn R. Barlow   +3 more
doaj   +1 more source

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