Results 91 to 100 of about 14,223 (251)

Acoustic insights into the zooplankton dynamics of the eastern Weddell Sea [PDF]

open access: yes, 2016
The success of any efforts to determine the effects of climate change on marine ecosystems depends on understanding in the first instance the natural variations, which contemporarily occur on the interannual and shorter time scales.
Cisewski, Boris, Strass, Volker
core   +1 more source

Research Bias in Long‐Term Monitoring of Antarctic Nearshore Marine and Terrestrial Biota

open access: yesGlobal Change Biology, Volume 31, Issue 8, August 2025.
Antarctic wildlife is under pressure from environmental changes and human activity, but how well is Antarctica's coastal biota being monitored? While over half of the long‐term monitoring studies spanned more than 10 years and/or included environmental data, they were limited in number, mostly focused on penguins and marine mammals, were unevenly ...
Shae L. Jones   +4 more
wiley   +1 more source

Food habits and dietary variability of pelagic nekton off Oregon and Washington, 1979-1984 [PDF]

open access: yes, 1987
The food habits of 20 species of pelagic nekton were investigated from collections made with small-mesh purse seines from 1979-84 off Washington and Oregon. Four species (spiny dogfish, Squalus acanthias; soupfin shark, Galeorhinus zyopterus; blue shark,
Brodeur, Richard D.   +2 more
core  

Using Stable Isotopes to Assign Origin of White‐Chinned Petrels Killed by Longline Fisheries

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 35, Issue 7, July 2025.
ABSTRACT Incidental capture (bycatch) of seabirds in longline and trawl fisheries is one of the main threats to many albatrosses and large petrels. The White‐chinned Petrel (Procellaria aequinoctialis) has a circumpolar distribution and is the seabird species killed most frequently by fisheries in the Southern Ocean.
Viviane Barquete   +6 more
wiley   +1 more source

Interactions between krill and its predators in the western Ross Sea

open access: yesFrontiers in Marine Science
Krill is a fundamental resource in the pelagic food web of the Ross Sea, constituting an important link between primary production and top predators.
Andrea De Felice   +4 more
doaj   +1 more source

Trophic studies on the Okhotsk Sea herring in the 2000s (food composition, daily rations, assessment of consumption in the annual cycle)

open access: yesИзвестия ТИНРО, 2016
Daily ration of the Okhotsk Sea herring is estimated as 3.9 % of the body weight in spring, 7.7 % in summer, 4.9 % in autumn, and 1.2 % in winter. Its mean annual consumption is assessed as 35.9 million t of prey, mainly zooplankton (97.3 % of the ration)
Konstantin M. Gorbatenko   +1 more
doaj   +1 more source

Varying depth and swarm dimensions of open-ocean Antarctic krill Euphausia superba Dana, 1850 (Euphausiacea) over diel cycles

open access: yesJournal of Crustacean Biology, 2018
Diel vertical migration (DVM) behaviour in swarms of Antarctic krill (Euphausia superba Dana, 1850) is notoriously variable, with swarms being found at a range of depths and in different shapes, sizes, and packing concentrations throughout the day-night ...
G. Tarling   +5 more
semanticscholar   +1 more source

Timing is everything: Drivers of interannual variability in blue whale migration. [PDF]

open access: yes, 2020
Blue whales need to time their migration from their breeding grounds to their feeding grounds to avoid missing peak prey abundances, but the cues they use for this are unknown.
Ballance, Lisa T   +6 more
core  

Self-maintaining or continuously refreshed? The genetic structure of Euphausia lucens populations in the Benguela upwelling ecosystem [PDF]

open access: yes, 2013
Populations of Euphausia lucens over the shelf of the southern Benguela upwelling region could be self-maintaining. Alternatively, they could be continually refreshed by expatriates from the SW Atlantic that enter the system via South Atlantic Central ...
Baker   +65 more
core   +2 more sources

High sensitivity to ocean acidification in wild out‐migrating juvenile Pacific salmon is not impacted by feeding success

open access: yesEcological Applications, Volume 35, Issue 5, July 2025.
Abstract Salmon populations are declining worldwide, with high mortality rates during juvenile marine migration presenting a bottleneck to recruitment. The ocean conditions along the main migratory route of juvenile salmon in British Columbia are characterized by high variability in CO2, with the amplitude, duration, and frequency of ocean ...
Andrea Y. Frommel   +9 more
wiley   +1 more source

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