Results 41 to 50 of about 2,564 (209)

Interactions between krill and its predators in the western Ross Sea

Frontiers 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, Ilaria Biagiotti, Ilaria Costantini, Giovanni Canduci, Iole Leonori   +4 more
doaj   +1 more source

Nanomaterials' Multigenerational Effects by Single and Joint Exposure in Non‐mammalian Models

Environmental Toxicology, EarlyView.
ABSTRACT Nanotoxicology has mainly focused on single‐generation studies, leaving multigenerational toxicity underexplored. Having animal welfare recently gained importance, we aimed to provide the state‐of‐the‐art of knowledge about multigenerational effects in non‐mammalian models in the case of nanomaterials (NM) single and joint exposure to other ...
Andy Joel Taipe Huisa, Analía Ale, Azael Francisco Silva Neto, Lorena De Mendonça Lucena, Marcelo Estrella Josende, Milena Ferreira de Lima, Rhayanny Kethylly Pereira Santos, Martín Federico Desimone, Priscila Gubert, José María Monserrat   +9 more
wiley   +1 more source

A study on the multi-frequency acoustic target strength of krill using a stochastic distorted-wave born approximation (SDWBA) model

Fisheries and Aquatic Sciences
We examined the dB difference in target strength at multiple frequencies (ΔTS) for the identification of Antarctic krill (Euphausia superba) and ice krill (Euphausia crystallorophias) using a stochastic distorted-wave Born approximation model.
Wuju Son, Wooseok Oh, Hyoung Sul La, Kyounghoon Lee   +3 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

KrillDB: A de novo transcriptome database for the Antarctic krill (Euphausia superba).

PLoS ONE, 2017
Antarctic krill (Euphausia superba) is a key species in the Southern Ocean with an estimated biomass between 100 and 500 million tonnes. Changes in krill population viability would have catastrophic effect on the Antarctic ecosystem.
Gabriele Sales, Bruce E Deagle, Enrica Calura, Paolo Martini, Alberto Biscontin, Cristiano De Pittà, So Kawaguchi, Chiara Romualdi, Bettina Meyer, Rodolfo Costa, Simon Jarman   +10 more
doaj   +1 more source

Trace element concentration in Antarctic krill reflecting their distribution in the Weddell Sea

Russian Journal of Earth Sciences, 2021
Distribution of Al, As, Cd, Co, Cu, Fe, Mn, Mo, Ni, Pb, Rb, and Zn in the main body parts and total samples of juvenile Antarctic krill Euphausia superba was examined in the northeastern Weddell Sea.
Solomatina A S, Demina L L, Spiridonov V A   +2 more
doaj   +1 more source

The opsin repertoire of the Antarctic krill Euphausia superba [PDF]

Marine Genomics, 2016
The Antarctic krill Euphausia superba experiences almost all marine photic environments throughout its life cycle. Antarctic krill eggs hatch in the aphotic zone up to 1000m depth and larvae develop on their way to the ocean surface (development ascent) and are exposed to different quality (wavelength) and quantity (irradiance) of light.
BISCONTIN, ALBERTO, Frigato, Elena, SALES, GABRIELE, MAZZOTTA, GABRIELLA MARGHERITA, Teschke, Mathias, DE PITTA', CRISTIANO, Jarman, Simon, Meyer, Bettina, COSTA, RODOLFO, Bertolucci, Cristiano   +9 more
openaire   +4 more sources

Projected Warming of the Southern Ocean Disrupts Embryonic Development and Hatch Timing in Antarctic Fish

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, Nathalie R. Le François, Thomas Desvignes, Jacob Grondin, John H. Postlethwait, H. William Detrich III, Jacob M. Daane   +6 more
wiley   +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, Chang‐Uk Hyun, Youmin Kim, Yongsik Jeong, Joo‐Eun Yoon, Supratim Guha, Jong‐U Kim, Seong‐Hui Lee, Jeong‐Hoon Kim, Hyun‐Cheol Kim   +9 more
wiley   +1 more source

Improving the Accuracy of Krill Target Strength Using a Shape Catalog

Frontiers in Marine Science, 2021
Antarctic krill are subject to precautionary catch limits, based on biomass estimates, to ensure human activities do not adversely impact their important ecological role.
Fiona Bairstow, Sven Gastauer, Sven Gastauer, Luke Finley, Tom Edwards, C. Tom A. Brown, So Kawaguchi, Martin J. Cox   +7 more
doaj   +1 more source