Results 51 to 60 of about 131,629 (294)

Cytogenetic study of the giant otter Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae)

open access: yesGenetics and Molecular Biology, 2007
The giant otter, Pteronura brasiliensis Zimmermann 1780 (Carnivora, Mustelidae, Lutrinae), was widely distributed in South America but stable populations are now only found in the Pantanal and Amazon regions and the species is classified as endangered ...
Jorge Felipe Oliveira Franco-de-Sá   +2 more
doaj   +1 more source

2018 State-of the Science of Dispersants and Dispersed Oil (DDO) in U.S. Arctic Waters: Eco-Toxicity and Sublethal Impacts [PDF]

open access: yes, 2018
Chemical dispersants were employed on an unprecedented scale during the Deepwater Horizon oil spill in the Gulf of Mexico, and could be a response option should a large spill occur in Arctic waters. The use of dispersants in response to that spill raised
Coastal Response Research Center (CRRC)
core   +1 more source

Energetic Extremes in Aquatic Locomotion by Coral Reef Fishes [PDF]

open access: yes, 2015
Underwater locomotion is challenging due to the high friction and resistance imposed on a body moving through water and energy lost in the wake during undulatory propulsion.
Fulton, Christopher J.   +2 more
core   +1 more source

Two Novel S‐methyltransferases Confer Dimethylsulfide Production in Actinomycetota

open access: yesAdvanced Science, EarlyView.
This study identifies two novel S‐adenosine‐methionine‐dependent methyltransferases, MddM1 and MddM2, in actinomycetes from the Mariana Trench. These enzymes can convert toxic hydrogen sulfide (H2S) and methanethiol (MeSH) into dimethylsulfide (DMS), serving as a cellular detoxification and oxidative stress response.
Ruihong Guo   +11 more
wiley   +1 more source

A Forest of Blue - Canada's Boreal Forest, the World's Waterkeeper [PDF]

open access: yes, 2011
Describes how the lakes, rivers, and wetlands comprising the boreal forest preserve biodiversity, mitigate global climate change effects, and offer food and cultural benefits to rural communities.

core  

Remote Modulation of Single‐Atom Catalyst Boosts High‐Valent Cobalt–Oxo Species Generation for Water Purification and Detoxification

open access: yesAdvanced Science, EarlyView.
This study develops a phosphorus‐doped cobalt single‐atom catalyst that enhances high‐valent cobalt–oxo species generation for water purification. This atomic‐level tuning boosts the catalyst's activity by 3.5 times, enabling efficient pollutant degradation. A continuous‐flow reactor achieves high, long‐term removal efficiency, producing water with low
Wen‐Min Wang   +4 more
wiley   +1 more source

TLR4 and TLR8 variability in Amazonian and West Indian manatee species from Brazil [PDF]

open access: yesGenetics and Molecular Biology
Amazonian (Trichechus inunguis) and West Indian (Trichechus manatus) manatees are aquatic mammals vulnerable to extinction found in the Amazon basin and the coastal western Atlantic.
Tatiana Maia de Oliveira   +10 more
doaj   +2 more sources

Climate change and body size trends in aquatic and terrestrial endotherms: Does habitat matter? [PDF]

open access: yesPLoS ONE, 2017
Several studies have claimed that reduction in body size comprises a nearly universal response to global warming; however, doubts about the validity of this pattern for endothermic species have been raised recently.
Daniel E Naya, Hugo Naya, Joseph Cook
doaj   +1 more source

Relations of environmental contaminants, algal toxins, and diet with the reproductive success of American alligators on Florida Lakes [PDF]

open access: yes, 2001
(113 page ...
Arnold, Beverly S.   +3 more
core  

What goes in, must come out:combining scat-based molecular diet analysis and quantification of ingested microplastics in a marine top predator [PDF]

open access: yes, 2019
Context: Microplastics (plastic particles <5 mm in size) are highly available for ingestion by a wide range of organisms, either through direct consumption or indirectly, via trophic transfer, from prey to predator.
Bennett, Kimberley A.   +6 more
core   +4 more sources

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