Results 51 to 60 of about 9,575 (206)
Protozoans as a food source for Antarctic krill, Euphausia superba: complementary insights from stomach content, fatty acids, and stable isotopes [PDF]
, 2006 We studied the diet of Antarctic krill, Euphausia superba, at five stations across the southwest Atlantic sector in summer 2003 by analyzing stomach content, fatty acids, and stable isotopes on the same individuals.
Atkinson, Angus +4 more
core +1 more source
Journal of Fish Biology, EarlyView.Abstract Although Macrourus species are the main by‐catch across Southern Ocean longline fisheries, including around South Georgia, the lack of species‐specific data has hindered effective management and ecological understanding. Aggregation of macrourids at genus level masks critical interspecific differences in life‐history strategies and ...
José Abreu +8 more
wiley +1 more source
Fall feeding aggregations of fin whales off Elephant Island (Antarctica) [PDF]
, 2012 From 13 March to 09 April 2012 Germany conducted a fisheries survey on board RV Polarstern in the Scotia Sea (Elephant Island - South Shetland Island - Joinville Island area) under the auspices of CCAMLR.
Burkhardt, Elke, Lanfredi, Caterina
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Timing is everything: Drivers of interannual variability in blue whale migration. [PDF]
, 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
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Global Change Biology Communications, Volume 1, Issue 1, March 2026.Embryos are particularly sensitive to thermal challenge. Antarctic fish embryos raised at projected Southern Ocean temperatures hatch during the winter, have a high incidence of morphological abnormalities, have shorter body lengths, and express genes indicative of cellular stress.
Margaret Streeter +6 more
wiley +1 more source
Blocking primers to enhance PCR amplification of rare sequences in mixed samples – a case study on prey DNA in Antarctic krill stomachs [PDF]
, 2008 Background Identification of DNA sequence diversity is a powerful means for assessing the species present in environmental samples. The most common molecular strategies for estimating taxonomic composition depend upon PCR with universal ...
Hege Vestheim, Simon N Jarman
core +1 more source
Spatial Resolution Impact Assessment for Long‐Term Population Monitoring of Adélie Penguin Guano
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.Adélie penguins (Pygoscelis adeliae) are key indicators of the Antarctic ecosystem, and remotely sensed guano stains offer an efficient means of estimating breeding abundance. Landsat medium‐resolution (MR) imagery enables long‐term monitoring through its archive.
Jinku Park +9 more
wiley +1 more source
Micronekton of the North Pacific [PDF]
, 2005 1. INTRODUCTION 1.1 Working Group History 2. SPECIES COMPOSITION AND DISTRIBUTION PATTERNS RELATED TO WATER MASSES 2.1 Mesopelagic Fishes 2.1.1 Dominant families 2.1.2 Large-scale feeding and/or spawning migration or expatriation ...
core
Characterization of polymorphic microsatellite loci in the Antarctic krill Euphausia superba [PDF]
, 2014 Background: The Antarctic krill, Euphausia superba is a pelagic crustacean, abundant in high-density swarms (10 000 – 30 000 ind/m2) with a circumpolar distribution and a key role in the food web of the Southern Ocean.
Carlos M Duarte +3 more
core +1 more source
Limnology and Oceanography, Volume 71, Issue 3, March 2026.Abstract Trophic connections between the food web base and zooplankton affect the structure of marine food webs and fluxes to higher predators. The food that zooplankton consume shifts in response to prey resources, but specific zooplankton trophic sources remain unresolved over the dynamic seasonal cycle for many species.
Anna K. McLaskey +2 more
wiley +1 more source