Results 41 to 50 of about 10,005 (267)

Continual Day–Night eDNA Detectability Amidst Diel Reef Species Fluctuations on Diver Transects

Environmental DNA
Recent research into the spatiotemporal dynamics of eDNA in marine environments indicates that eDNA signals are highly localized and may dissipate beyond detection levels within a few hours of production.
Katrina M. West, Tyson R. Jones, Lara Denis‐Roy, Olivia J. Johnson, Ella Clausius, Graham Edgar, Bruce Deagle   +6 more
doaj   +1 more source

Different shape but the same topographical complexity—The lingual gross anatomy of the Saimaa (Pusa saimensis) and Baltic ringed seals (Pusa hispida botnica)

The Anatomical Record, EarlyView.
Abstract Despite the distinctly different shapes of their tongues, the tongue gross anatomy of Saimaa ringed seal closely resembled that of Baltic ringed seal. There were no differences in the extrinsic and intrinsic tongue muscles or their associated vascularization and innervation between Saimaa and Baltic ringed seals.
Juha Laakkonen, Heini Nihtilä
wiley   +1 more source

Isolation and characterization of the mitochondrial genome of Gymnodraco acuticeps (Perciformes: Bathydraconidae) with phylogenetic consideration

Mitochondrial DNA. Part B. Resources, 2017
Gymnodraco acuticepsis is an Antarctic fish living in the Southern Ocean. Until now, studies on G. acuticeps are still limited. As an Antarctic fish, obtaining and characterization of the mitochondrial genome of G.
Wei Song, Lingzhi Li, Hongliang Huang, Fenfang Chen, Ming Zhao, Keji Jiang, Fengying Zhang, Chunyan Ma, Xuezhong Chen, Lingbo Ma   +9 more
doaj   +1 more source

Variation in Antarctic Petrel Foraging Ecology: Not All Individuals Specialize on Krill

Frontiers in Marine Science, 2022
Individual heterogeneity in foraging behaviour determines how individuals and populations respond to changes in the availability and distribution of resources.
S. Descamps, S. M. Harris, J. Fluhr, P. Bustamante, P. Bustamante, Y. Cherel, A. M. Trevail, M. Brault-Favrou, S. C. Patrick   +8 more
doaj   +1 more source

Changes in acanthocephalan infection of the Antarctic fish Notothenia coriiceps in Admiralty Bay, King George Island, over 29 years [PDF]

, 2012
A comparison between the levels of infection with Acanthocephala of the fish Notothenia coriiceps in Admiralty Bay (South Shetland Islands, Antarctic) in 1978/79 and 2007/08 is presented. The same eight acanthocephalan species, three echinorhynchids ma−
Zdzitowiecki, Krzysztof, Zdzitowiecki, Krzyszof, Laskowski, Zdzisław, Korczak-Abshire, Małgorzata   +3 more
core  

Counting cases, conserving species: addressing highly pathogenic avian influenza in wildlife

Biological Reviews, EarlyView.
ABSTRACT Highly pathogenic avian influenza (HPAI) has become a critical threat to wildlife, shifting from a seasonal epizootic to a persistent, year‐round panzootic with global consequences. Here, we summarise the origin, evolutionary mechanisms, and expanding host range of the current H5N1 virus (clade 2.3.4.4b) and assess its impact on wildlife. Over
Ulrich Knief, Sandra Bouwhuis, Anja Globig, Anne Günther, Wouter Courtens   +4 more
wiley   +1 more source

Fish from the Southern Ocean: biodiversity, ecology and conservation challenges

Frontiers in Marine Science, 2015
According to the most recent census, the modern fauna of the Southern Ocean (SO) includes 374 fish species. Among them, a single group of closely related species, the suborder Notothenioidei, dominates, in terms of diversity, biomass and abundance ...
Marino Vacchi
doaj   +1 more source

Estimating the distribution of demand for Antarctic krill (Euphauisa superba) from land-based predators at South Georgia [PDF]

, 2007
South Georgia is renowned for the abundance of Antarctic krill (Euphausia superba) and a range of krill predators. Variability in krill availability at a range of scales, and the consequences of this for predator-prey interactions, mean that quantifying ...
Swarbrick, Matthew Lewis
core  

Distribution of abundance, biomass, production and productivity of macrozoobenthos in the sub-Antarctic Magellan Province (South America) [PDF]

, 1999
Distribution of abundance, biomass, productivity and production of macrozoobenthos was investigated in four study areas in the Magellan region (South Patagonian Ice-Field, Strait of Magellan, Beagle Channel, Continental Shelf).
Thatje, S., Mutschke, E.
core   +1 more source

Partners or passengers? Revisiting the association between diatoms and aquatic animals

Biological Reviews, EarlyView.
ABSTRACT Numerous studies have revealed the importance of research on the communities capable of colonizing animal surfaces (epibionts) and the animals on which they live (basibionts). Very few studies have considered epizoic diatoms, and there are gaps and biases in our knowledge, including the choice of basibionts, the methods used, and the habitats ...
Gianluca Vacca, Elisa Falasco, Francesca Bona   +2 more
wiley   +1 more source