Results 21 to 30 of about 52,716 (313)

The Interplay of Mycosporine-like Amino Acids between Phytoplankton Groups and Northern Krill (Thysanoessa sp.) in a High-Latitude Fjord (Kongsfjorden, Svalbard)

Marine Drugs, 2022
We investigated pigment and mycosporine-like amino acid (MAA) concentrations of phytoplankton and Northern krill (Thysanoessa sp.) in sub-Arctic Kongsfjorden. Chlorophyll a (Chl-a) concentrations in the surface and middle-layer water were 0.44 μg L−1 (±0.
Bo Kyung Kim, Mi-Ok Park, Jun-Oh Min, Sung-Ho Kang, Kyung-Hoon Shin, Eun Jin Yang, Sun-Yong Ha   +6 more
doaj   +1 more source

A surplus no more? Variation in krill availability impacts reproductive rates of Antarctic baleen whales

Global Change Biology, 2023
The krill surplus hypothesis of unlimited prey resources available for Antarctic predators due to commercial whaling in the 20th century has remained largely untested since the 1970s.
L. Pallin, N. Kellar, D. Steel, N. Botero‐Acosta, C. S. Baker, J. A. Conroy, Daniel P. Costa, Chris M. Johnson, D. Johnston, Ross C. Nichols, Doug P. Nowacek, Andrew J. Read, O. Savenko, Oscar M. Schofield, S. Stammerjohn, D. K. Steinberg, A. Friedlaender   +16 more
semanticscholar   +1 more source

The Effect of Krill Oil Supplementation on Exercise Performance and Markers of Immune Function [PDF]

, 2015
Date of Acceptance: 08/09/2015 Acknowledgments We thank the technical support of the Institute of Medical Sciences Musculoskeletal Programme and the Iain Fraser Cytometry Centre.Peer reviewedPublisher ...
Brazaite, Goda, Da Boit, Mariasole, Gray, Stuart Robert, Mastalurova, Ina, McGovern, Niall, Thompson, Keith   +5 more
core   +13 more sources

The impact of salps (Salpa thompsoni) on the Antarctic krill population (Euphausia superba): an individual-based modelling study

Ecological Processes, 2023
Background Krill (Euphausia superba) and salps (Salpa thompsoni) are key macrozooplankton grazers in the Southern Ocean ecosystem. However, due to differing habitat requirements, both species previously exhibited little spatial overlap.
Bruno Walter Pietzsch, Aaron Schmidt, Jürgen Groeneveld, Dominik Bahlburg, Bettina Meyer, Uta Berger   +5 more
doaj   +1 more source

Organic or junk food? Microplastic contamination in Antarctic krill and salps

Royal Society Open Science, 2023
Microplastics (MP) have been reported in Southern Ocean (SO), where they are likely to encounter Antarctic zooplankton and enter pelagic food webs. Here we assess the presence of MP within Antarctic krill (Euphausia superba) and salps (Salpa thompsoni ...
Laura Wilkie Johnston, E. Bergami, Emily Rowlands, C. Manno   +3 more
semanticscholar   +1 more source

Distribution and biomass estimation of Antarctic krill (Euphausia superba) off the South Orkney Islands during 2011–2020

ICES Journal of Marine Science, 2023
Antarctic krill is a key species in the Southern Ocean and subject to the most extensive fishery in the Antarctic. The Norwegian Institute of Marine Research has conducted acoustic-trawl monitoring of krill off the South Orkneys annually since 2011 in ...
G. Skaret, G. Macaulay, R. Pedersen, X. Wang, T. Klevjer, L. Krag, B. Krafft   +6 more
semanticscholar   +1 more source

An intercomparison of models predicting growth of Antarctic krill (Euphausia superba): The importance of recognizing model specificity

bioRxiv, 2023
Antarctic krill is a key species of the Southern Ocean, impacted by climate change and human exploitation. Understanding how these changes affect the distribution and abundance of krill is crucial for generating projections of change for Southern Ocean ...
Dominik Bahlburg, S. Thorpe, B. Meyer, Uta Berger, E. Murphy   +4 more
semanticscholar   +1 more source

Hypoxia Tolerance of 10 Euphausiid Species in Relation to Vertical Temperature and Oxygen Gradients

Frontiers in Physiology, 2020
Oxygen Minimum Zones prevail in most of the world’s oceans and are particularly extensive in Eastern Boundary Upwelling Ecosystems such as the Humboldt and the Benguela upwelling systems.
Nelly Tremblay, Kim Hünerlage, Thorsten Werner   +2 more
doaj   +1 more source

Optimal frequency control in microgrid system using fractional order PID controller using Krill Herd algorithm [PDF]

, 2020
This paper investigates the use of fractional order Proportional, Integral and Derivative (FOPID) controllers for the frequency and power regulation in a microgrid power system. The proposed microgrid system composes of renewable energy resources such as
Gabbar, Hossam, Helaimi, M’hamed, Othman, Ahmed, Regad, Mohamed, Taleb, Rachid   +4 more
core   +1 more source

Relative changes in krill abundance inferred from Antarctic fur seal. [PDF]

PLoS ONE, 2011
Antarctic krill Euphausia superba is a predominant species in the Southern Ocean, it is very sensitive to climate change, and it supports large stocks of fishes, seabirds, seals and whales in Antarctic marine ecosystems.
Tao Huang, Liguang Sun, John Stark, Yuhong Wang, Zhongqi Cheng, Qichao Yang, Song Sun   +6 more
doaj   +1 more source