Results 81 to 90 of about 108,346 (277)

How does Drake Passage Oscillation Index (DPOI) effect on variability of the Antarctic krill ecosystem in the Antarctic Peninsula region? [PDF]

, 2016
Antarctic krill, Euphausia superba Dana, is a keystone species of the Antarctic ecosystem. Environmental and ecological change in Antarctica is one of key issues for the global climate change.

core   +1 more source

Ground‐truthing of satellite imagery to assess seabird colony size: A test using Adélie penguins

Remote Sensing in Ecology and Conservation, EarlyView.
Adélie penguin colony size can be estimated from space using very high‐resolution (VHR; 0.3–0.6 m resolution) satellite imagery due to the contrast between their guano stain and the surrounding terrain. Our study assessed the utility of VHR imagery for making indirect assessments of changes in colony size.
Alexandra J. Strang, Dean P. Anderson, Esme Robinson, Grant Ballard, Annie E. Schmidt, David G. Ainley, Kerry Barton, Fiona Shanhun, Elissa Z. Cameron, Michelle A. LaRue   +9 more
wiley   +1 more source

Environmental drivers of the physiological condition of mature female Antarctic krill during the spawning season: implications for krill recruitment

Marine Ecology Progress Series, 2021
Southern Ocean pelagic productivity relies on the abundance of Antarctic krill Euphausia superba, which fluctuates on a 5-7 yr cycle and is driven by interannual variability in recruitment.
KB Steinke, K. Bernard, R. Ross, L. Quetin   +3 more
semanticscholar   +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

Record phenological responses to climate change in three sympatric penguin species

Journal of Animal Ecology, EarlyView.
This paper is impressive because we managed to monitor extensively a really difficult place to reach and operate in. We deployed 77 cameras across Antarctica and the Sub Antarctic islands to monitor three different species of penguins. We found that they are the fastest advancing vertebrates with respect to their timing of breeding.
Ignacio Juarez Martinez, Alex Kacelnik, Fiona M. Jones, Jefferson T. Hinke, Michael J. Dunn, Andrea Raya Rey, Heather J. Lynch, Kate Owen, Tom Hart   +8 more
wiley   +1 more source

Determination of fluoride in Antarctic krill (Euphausia superba) using ion chromatography and its pretreatments selection

Czech Journal of Food Sciences, 2015
A rapid, sensitive and reliable method to quantify fluoride in Antarctic krill has been established. Four different pretreatment methods were used for the extraction of fluoride: double-deionised water extraction, sulphuric acid distillation ...
Yan-Ling ZHAO, Lan-Lan ZHU, Yong SUN, De-Qing ZHOU   +3 more
doaj   +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
core  

Reviewing seas of data: Integrating image‐based bio‐logging and artificial intelligence to enhance marine conservation

Methods in Ecology and Evolution, EarlyView.
Abstract Conservation of marine ecosystems can be improved through a better understanding of ecosystem functioning, particularly the cryptic underwater behaviours and interactions of marine predators. Image‐based bio‐logging devices (including images, videos and active acoustic) are increasingly used to monitor wildlife movements, foraging behaviours ...
Marianna Chimienti, Akiko Kato, Vahid Seydi, Stefan Schoombie, Jefferson T. Hinke, Ruth Joy, Damian C. Lidgard, W. Chris Oosthuizen, Yannis P. Papastamatiou, Yan Ropert‐Coudert, Akinori Takahashi, Jean‐Baptiste Thiebot, Muriel Visani, Mickael Coustaty, Tiphaine Jeanniard‐du‐Dot   +14 more
wiley   +1 more source

Antarctic krill habitat suitability variation in the Southern Ocean over 20 years

Frontiers in Marine Science
Antarctic krill (Euphausia superba) is a key species that sustains the biodiversity of the Southern Ocean and is a protected and restricted fishing target in this region. Considering the significant impacts of climate change on the ecological environment
Yiyang Tan, Yiyang Tan, Yiyang Tan, Yan Bai   +3 more
doaj   +1 more source

Phytogenic food of Euphausia superba Dana caught in the southern Drake Passage and the Bransfield Strait, February—March 1981 (BIOMASS-FIBEX) [PDF]

, 1982
These studies were carried out on board of the r/v "Profesor Siedlecki" within the Programme MR-I-29A of the Polish Academy of Sciences, during the Antarctic Expedition headed by Dr. S. Rakusa-Suszczewski.
Ligowski, Ryszard
core