Results 71 to 80 of about 2,250 (176)

Eddies in Seasonally Ice‐Covered Fjords of the Northern Canadian Arctic Archipelago

Journal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.
Abstract We present the first direct observations of cyclonic passing and standing eddies within landfast ice‐covered fjords where wind stress is unavailable to drive the eddies. Using a series of winter and spring 2025 in situ observations from the northern Canadian Arctic Archipelago, we identify three baroclinic eddies beneath the landfast ice cover.
Igor A. Dmitrenko, Sergei A. Kirillov, Paul G. Myers, David Capelle, David G. Babb, Clark Pennelly, Lisa C. Matthes, Dorthe Dahl‐Jensen   +7 more
wiley   +1 more source

Sex Ratio, Pregnancy Status, and Blubber Testosterone Concentrations of Humpback Whales (Megaptera novaeangliae) on Foraging Grounds in the Southwestern Atlantic

Marine Mammal Science, Volume 42, Issue 4, October 2026.
Henry W. Slesser, Joanna L. Kershaw, Amy S. Kennedy, Caroline R. Weir, Stephanie Martin, Emma L. Carroll, C. Scott Baker, Manuela Bassoi, Danielle L. Buss, Martin Collins, Jennifer A. Jackson   +10 more
wiley   +1 more source

Common ground: Efficient, consistent, observer‐independent bioacoustic call density estimation with adjudicated ground truth and capture–recapture detection functions

Methods in Ecology and Evolution, Volume 17, Issue 7, Page 2161-2174, July 2026.
Abstract Passive acoustic recording is a cost‐effective method for monitoring vocal animals. Within this field, there is an increasing focus on automated detection algorithms for counting calls and estimating call density (in space and time). For accurate interpretation of such results, it is important to understand and correct biases introduced by ...
Brian S. Miller, Nat Kelly, Meghan G. Aulich, Naysa Balcazar, Susannah Buchan, Franciele R. de Castro, Kym Reeve, Danielle V. Harris   +7 more
wiley   +1 more source

The association of Antarctic krill Euphausia superba with the under-ice habitat.

PLoS ONE, 2012
The association of Antarctic krill Euphausia superba with the under-ice habitat was investigated in the Lazarev Sea (Southern Ocean) during austral summer, autumn and winter.
Hauke Flores, Jan Andries van Franeker, Volker Siegel, Matilda Haraldsson, Volker Strass, Erik Hubert Meesters, Ulrich Bathmann, Willem Jan Wolff   +7 more
doaj   +1 more source

Stable Isotope Analysis (δ13C and δ15N) of Baleen Plates Reveals Feeding Patterns in Stranded Humpback Whales (Megaptera novaeangliae) Along the Brazilian Coast

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Humpback whales (Megaptera novaeangliae) from breeding stock A migrate annually between Antarctic feeding grounds (~65° S) and Brazilian breeding areas (~17° S). Traditionally considered to fast during migration, recent feeding observations and increased strandings along southeastern Brazil (~23° S) raise questions about possible shifts in ...
Daniel Fonseca Zappa, Kalil Salloum, Nandhara Alexandrini Martins, Carla Bantel, Andrea Maranho, Carla Beatriz Barbosa, Francisco William da Cruz Júnior, Adriana Barioni, Gislene Torrente‐Vilara   +8 more
wiley   +1 more source

Penguin guano suppresses the grazing rate and modifies swimming behavior in Antarctic Krill (Euphausia superba)

Frontiers in Marine Science
Antarctic krill (Euphausia superba) are a key component of the Antarctic ecosystem linking primary and some secondary production to higher trophic levels including fish, penguins, seals, and whales.
Nicole Hellessey, Nicole Hellessey, Nicole Hellessey, Marc Weissburg, David M. Fields   +4 more
doaj   +1 more source

Dwarf Minke Whale (Balaenoptera acutorostrata) Mother and Calf Ecology in East and Southern Australia

Marine Mammal Science, Volume 42, Issue 3, July 2026.
ABSTRACT Knowledge of mother–calf pairs, migratory patterns, female reproductive cycles, and birth‐year calf development are all essential for understanding risks in these critical life stages and monitoring little‐known dwarf minke whale (Balaenoptera acutorostrata) populations.
Claire E. Wouters, R. Alastair Birtles, Naomi M. Gardiner   +2 more
wiley   +1 more source

Distribution of the Antarctic Sea-birds in the Outer Margin of the Summer Pack Ice Area

Antarctic Record, 1979
The distribution of the Antarctic sea-birds was investigated in 1976-1977 and 1977-1978 summer seasons. The observations were performed along the outer margin of the pack ice area between longitude 50° E and 165° E.
Yasuhiko NAITO, Keiji NASU, Hiroshi SUZUKI   +2 more
doaj   +1 more source

Identifying Risk: Concurrent Overlap of the Antarctic Krill Fishery with Krill-Dependent Predators in the Scotia Sea.

PLoS ONE, 2017
Mitigating direct and indirect interactions between marine predators and fisheries is a motivating factor for ecosystem-based fisheries management (EBFM), especially where predators and fisheries compete for a shared resource. One difficulty in advancing
Jefferson T Hinke, Anthony M Cossio, Michael E Goebel, Christian S Reiss, Wayne Z Trivelpiece, George M Watters   +5 more
doaj   +1 more source

Size Selection of Antarctic Krill (Euphausia superba) in Trawls

PLoS ONE, 2014
Trawlers involved in the Antarctic krill (Euphausia superba) fishery use different trawl designs, and very little is known about the size selectivity of the various gears. Size selectivity quantifies a given trawl's ability to catch different sizes of a harvested entity, and this information is crucial for the management of a sustainable fishery.
Krag, Ludvig A., Herrmann, Bent, Iversen, Svein A., Engås, Arill, Nordrum, Sigve, Krafft, Bjørn A.   +5 more
openaire   +5 more sources