Results 71 to 80 of about 13,661 (221)

Lateral target strength of Antarctic krill [PDF]

ICES Journal of Marine Science, 1996
An area of high krill (Euphausia superba Dana) density was continuously monitored with down-looking and side-looking sonars over a period of 24 h. Measurements of volume backscattering strength were used to describe the density of krill with depth and the vertical movement of krill over time.
openaire   +1 more source

Chilean Antarctic krill fishery (2011-2016)

Latin American Journal of Aquatic Research, 2020
Antarctic krill (Euphausia superba) is a key resource in the Antarctic region, as it is the primary food source for fish, whales, seals, flying birds, penguins and cephalopods. The high concentrations of the species and its possible uses -food for human and animal consumption and in the production of industrial, pharmaceutical and dietetic products ...
Arana, Patricio M., Rolleri, Renzo, De Caso, Álvaro   +2 more
openaire   +3 more sources

Contrasting life‐history strategies of three sympatric icefish species in the northern Scotia Sea

Journal of Fish Biology, EarlyView.
Abstract Comprehending a species' life‐history strategies is crucial to inform effective conservation efforts. Commercial fishing impacts icefish (family: Channichthyidae) in the Scotia Sea, but detailed information on species‐specific life histories remains largely unknown.
Huw W. James, Timothy Jones, Fabrice Stephenson, Philip R. Hollyman, William D. K. Reid, Martin A. Collins   +5 more
wiley   +1 more source

Drivers of intrapopulation variation in resource use in a generalist predator, the macaroni penguin [PDF]

Intrapopulation variation in resource use occurs in many populations of generalist predators with important community and evolutionary implications. One of the hypothesised mechanisms for such widespread variation is ecological opportunity, i.e. resource
Green, J. A., Horswill, C., Matthiopoulos, J., McGill, R.A.R., O’Connell, T. C., Phillips, R. A., Ratcliffe, N., Trathan, P. N.   +7 more
core   +1 more source

Using a risk assessment framework to spatially and temporally spread the fishery catch limit for Antarctic krill in the west Antarctic Peninsula: A template for krill fisheries elsewhere

Frontiers in Marine Science, 2022
The west Antarctic Peninsula is an important breeding and foraging location for marine predators that consume Antarctic Krill (Euphasia superba). It is also an important focus for the commercial fishery for Antarctic krill, managed by the Commission for ...
V. Warwick-Evans, A. Constable, L. Dalla Rosa, E. R. Secchi, E. Seyboth, E. Seyboth, P. N. Trathan   +6 more
doaj   +1 more source

Distribution and ecology of the four Macrourus species by‐caught in the longline fishery at South Georgia, Southern Ocean

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, Philip R. Hollyman, Jennifer J. Freer, M. L. Romero Martínez, José P. Queirós, Timothy Jones, Richard A. Phillips, José C. Xavier, Martin A. Collins   +8 more
wiley   +1 more source

Oceanic swarms of Antarctic krill perform satiation sinking [PDF]

Proceedings of the Royal Society B: Biological Sciences, 2017
Antarctic krill form some of the highest concentrations of animal biomass observed in the world's oceans potentially due to their prolific ability to swarm. Determining the movement of Antarctic krill within swarms is important to identify drivers of their behaviour and their biogeochemical impact on their environment. We examined vertical
Tarling, Geraint A., Thorpe, Sally E.
openaire   +3 more sources

Uncovering Hidden Predators: Thermal Drone Detection of Antarctic Fur Seals in Tussac Grass at South Georgia

Ecology and Evolution, Volume 16, Issue 3, March 2026.
We demonstrate that fixed‐wing drones equipped with dual thermal and RGB sensors can effectively detect Antarctic fur seals, including those concealed in tussac grass at South Georgia. Thermal imagery significantly improved detection rates compared with RGB alone, while a combined workflow provided the most accurate population estimates.
J. Coleman, N. Fenney, P. N. Trathan, A. Fox, M. A. Collins, P. Hollyman   +5 more
wiley   +1 more source

Soundings: the Newsletter of the Monterey Bay Chapter of the American Cetacean Society. 2013 [PDF]

, 2013
Issues January - November/December 2013.

core  

Salinity–temperature interaction drives metabolic and energetic changes in an Arctic crustacean

Ecosphere, Volume 17, Issue 3, March 2026.
Abstract The Arctic is shifting towards a prevalence of warm and more saline Atlantic‐like waters. These changes in the marine environment pose significant challenges for the ecophysiology of marine invertebrates. Here, we measured the metabolic enzyme activity of citrate synthase and lactate dehydrogenase, as well as the energy content and level of ...
Pauline Bourdin, Giovanna Mottola, Ella von Weissenberg, Malin Daase, Jonna Engström‐Öst, Katja Anttila   +5 more
wiley   +1 more source