Results 51 to 60 of about 572 (155)

Assessing the recovery of an Antarctic predator from historical exploitation [PDF]

Royal Society Open Science, 2019
The recovery of whale populations from centuries of exploitation will have important management and ecological implications due to greater exposure to anthropogenic activities and increasing prey consumption.
Alexandre N. Zerbini, Grant Adams, John Best, Phillip J. Clapham, Jennifer A. Jackson, Andre E. Punt   +5 more
doaj   +1 more source

Observer coverage and interaction rates determine the choice between design‐based and machine learning bycatch estimators for rare species

Conservation Biology, EarlyView.
Abstract Robust estimates of the magnitude of protected species bycatch are essential for effective fisheries management and marine conservation. Existing bycatch estimation methods typically struggle to accurately and precisely estimate the bycatch of rare species as a result of the statistical assumptions necessary to overcome infrequent encounters ...
Christopher Long, Robert Ahrens, T. Todd Jones, Zachary Siders   +3 more
wiley   +1 more source

A deep dive into fat: Investigating blubber lipidomic fingerprint of killer whales and humpback whales in northern Norway

Ecology and Evolution, 2021
In cetaceans, blubber is the primary and largest lipid body reservoir. Our current understanding about lipid stores and uses in cetaceans is still limited, and most studies only focused on a single narrow snapshot of the lipidome.
Pierre Bories, Audun H. Rikardsen, Pim Leonards, Aaron T. Fisk, Sabrina Tartu, Emma F. Vogel, Jenny Bytingsvik, Pierre Blévin   +7 more
doaj   +1 more source

The effects of playbacks of anthropogenic noise on the anti‐predator behaviour of Pacific sand lance, Ammodytes personatus

Journal of Fish Biology, EarlyView.
Abstract Noise from human activities has increased and been shown to negatively impact marine animals. Marine mammals and fish are vulnerable to anthropogenic noise because they rely on sound to communicate, find food, avoid predators and sense their environment. Forage fish are small schooling pelagic fish, important to many predators and instrumental
Meredith A. V. White, Francis Juanes, Patrick D. O'Hara, Jose Tavera, Matthew R. Baker, Douglas F. Bertram, Adam Summers, David A. Fifield, Nora V. Carlson   +8 more
wiley   +1 more source

The Influence of the East Australian Current on the Regional Distribution of Humpback Whales (Megaptera novaeangliae)

Journal of Marine Science and Engineering
Humpback whales (Megaptera novaeangliae) migrate annually along the east coast of Australia, utilizing various habitats, including open embayments such as the Gold Coast bay (GCB) in southeast Queensland, for resting and social behaviors.
Patrick Woletz, Jan-Olaf Meynecke
doaj   +1 more source

Tidal effects on periodical variations in the occurrence of singing humpback whales in coastal waters of Chichijima Island, Ogasawara, Japan

Scientific Reports, 2022
Marine organisms inhabiting coastal waters are known to be driven by periodic cycles such as diel, tidal, and seasonal changes. Humpback whales (Megaptera novaeangliae) breed in shallow and warm coastal waters, with males singing complex songs during the
Koki Tsujii, Tomonari Akamatsu, Ryosuke Okamoto, Kyoichi Mori, Yoko Mitani   +4 more
doaj   +1 more source

The Greenland–Scotland Ridge in a Changing Ocean: Time to Act?

Marine Ecology, EarlyView.
ABSTRACT The Greenland–Scotland Ridge is a submarine mountain that rises up to 500 m below the sea surface and extends from the east coast of Greenland to the continental shelf of Iceland and across the Faroe Islands to Scotland. The ridge not only separates deeper ocean basins on either side, that is, the North Atlantic and Arctic oceans, but also ...
Christophe Pampoulie, Saskia Brix, Haseeb S. Randhawa   +2 more
wiley   +1 more source

Utility of telomere length measurements for age determination of humpback whales

NAMMCO Scientific Publications, 2014
This study examines the applicability of telomere length measurements by quantitative PCR as a tool for minimally invasive age determination of free-ranging cetaceans.
Morten Tange Olsen, Jooke Robbins, Martine Bérubé, Mary Beth Rew, Per J Palsbøll   +4 more
doaj   +1 more source

Interchange of Southern Hemisphere humpback whales across the South Atlantic Ocean

Scientific Reports, 2023
The cosmopolitan distribution of humpback whales (Megaptera novaeangliae) is largely driven by migrations between winter low-latitude breeding grounds and summer high-latitude feeding grounds.
Eric Angel Ramos, Ted Cheeseman, Milton Cesar C. Marcondes, Marilia Olio, Alexander Vogel, Simon Elwen, Thais H. M. de Melo, Cecília Facchola, Sérgio Cipolotti, Ken Southerland, Ken Findlay, Elisa Seyboth, Steven A. McCue, Pieter G. H. Kotze, S. Mduduzi Seakamela   +14 more
doaj   +1 more source

The Question of Referentiality

Philosophy and Phenomenological Research, EarlyView.
ABSTRACT Most theorists have offered different accounts of reference fixing for names, demonstratives, and indexicals. Indeed, this variety can seem an inevitable response to a certain class of hard cases. Here, I will offer a unified account of reference fixing equally capable of handling these cases.
Eliot Michaelson
wiley   +1 more source