Results 51 to 60 of about 16,537 (223)

A new Activity Monitor for Aquatic Zooplankter (AMAZE) allows the recording of swimming activity in wild-caught Antarctic krill (Euphausia superba)

Scientific Reports
Antarctic krill (Euphausia superba, hereafter krill) is a pelagic living crustacean and a key species in the Southern Ocean ecosystem. Krill builds up a huge biomass and its synchronized behavioral patterns, such as diel vertical migration (DVM ...
Lukas Hüppe, Dominik Bahlburg, Michael Busack, Johannes Lemburg, Laura Payton, Nils Reinhard, Dirk Rieger, Charlotte Helfrich-Förster, Bettina Meyer   +8 more
doaj   +1 more source

Super-aggregations of krill and humpback whales in Wilhelmina Bay, Antarctic Peninsula. [PDF]

PLoS ONE, 2011
Ecological relationships of krill and whales have not been explored in the Western Antarctic Peninsula (WAP), and have only rarely been studied elsewhere in the Southern Ocean.
Douglas P Nowacek, Ari S Friedlaender, Patrick N Halpin, Elliott L Hazen, David W Johnston, Andrew J Read, Boris Espinasse, Meng Zhou, Yiwu Zhu   +8 more
doaj   +1 more source

Divergent exploratory‐avoidant behavioural strategies may drive niche differentiation in juvenile Antarctic fishes

Journal of Fish Biology, EarlyView.
Abstract We used an ecological niche theory framework integrating physiological and behavioural ecology to understand interspecific differentiation of juveniles of four Antarctic fishes: Trematomus bernacchii, Trematomus pennellii, Trematomus nicolai and Pagothenia borchgrevinki.
Amanda J. Frazier, Andrew W. Naslund, Milica Mandic, Kenneth W. Zillig, Bryant C. Siu, Anne E. Todgham   +5 more
wiley   +1 more source

Estimating Patagonian toothfish (Dissostichus eleginoides) length at first maturity from their age, sex and temperature experience around South Georgia

Journal of Fish Biology, EarlyView.
Abstract Patagonian toothfish (Dissostichus eleginoides) are a long‐lived, slow‐growing deep‐sea species endemic to the Southern Hemisphere and the focus of longline fisheries managed to ensure sustainable exploitation. Managing the fisheries relies on accurate stock assessments that include pertinent biological and exploitation processes.
Jessica E. Marsh, Sarah R. Alewijnse, Stephen D. Gregory, Philip R. Hollyman, Marta Söffker   +4 more
wiley   +1 more source

Krill Oil Improves Mild Knee Joint Pain: A Randomized Control Trial.

PLoS ONE, 2016
BackgroundKrill oil is an edible oil extracted from krill, a small red-colored crustacean found in the Antarctic Ocean. The administration of krill oil is reported to mitigate inflammation in patients with cardiac disease, rheumatoid arthritis, or ...
Yoshio Suzuki, Minoru Fukushima, Keishoku Sakuraba, Keisuke Sawaki, Kazuaki Sekigawa   +4 more
doaj   +1 more source

Adaptation to extreme environments: A review of Antarctic fish physiology

Journal of Fish Biology, EarlyView.
Abstract Having evolved in the chronically cold and thermally stable waters of the Southern Ocean (SO) for millions of years, Antarctic fish possess a suite of physiological specializations that enable them to survive at temperatures near the freezing point of seawater. Adaptations include the evolution of antifreeze proteins, modifications of membrane
Seungyeon Lee, Sachithra Amarin Hettiarachchi, Il‐Chan Kim, Jae‐Seong Lee, Thomas Desvignes, Julia M. York, Laura Ghigliotti, Jilda Alicia Caccavo, Jin‐Hyoung Kim   +8 more
wiley   +1 more source

Images as proximity sensors : the incidence of conspecific foraging in Antarctic fur seals [PDF]

, 2015
Background: Although there have been recent advances in the development of animal-attached ‘proximity’ tags to remotely record the interactions of multiple individuals, the efficacy of these devices depends on the instrumentation of sufficient animals ...
Staniland, Iain J, Jessopp, Mark J, Hooker, Sascha K., Barychka, Tatsiana, Hooker, Sascha Kate, Sascha K. Hooker, Tatsiana Barychka, Iain J. Staniland, Staniland, Iain J., Jessopp, Mark J., Mark J. Jessopp   +10 more
core   +1 more source

A method to estimate prey density from single-camera images: A case study with chinstrap penguins and Antarctic krill.

PLoS ONE
Estimating the densities of marine prey observed in animal-borne video loggers when encountered by foraging predators represents an important challenge for understanding predator-prey interactions in the marine environment. We used video images collected
Victoria R Hermanson, George R Cutter, Jefferson T Hinke, Matthew Dawkins, George M Watters   +4 more
doaj   +1 more source

Seascape genomics reveals high genetic diversity and apparent panmixia in endemic Southern Ocean phytoplankton

Limnology and Oceanography Letters, Volume 11, Issue 6, November 2026.
Abstract The adaptive potential and resilience of cold‐adapted phytoplankton to climate change have the potential to impact polar marine food webs and global biogeochemical cycles. Two central but poorly constrained facets of adaptive potential in polar phytoplankton are standing genetic diversity and its spatial structure. Here, we partially sequenced
Ian W. Bishop, Tatiana A. Rynearson
wiley   +1 more source

Krill of the Ross Sea: distribution, abundance and demography of Euphausia superba and Euphausia crystallorophias during the Italian Antarctic Expedition (January-February 2000)

Scientia Marina, 2002
Net samples data from the 15th Italian Antarctic Oceanographic Cruise (Jan-Feb 2000) were analysed to obtain a general picture of the summer distribution pattern, abundance and demography of krill in the western Ross Sea (Antarctica).
Antonello Sala, Massimo Azzali, Aniello Russo   +2 more
doaj   +1 more source