Results 111 to 120 of about 28,986 (305)

Organic and Inorganic Pollutants, Oxidative Stress Biomarkers, and Electrophoretic Protein Profiles in an Endangered Thresher Shark (Alopias vulpinus) From Southeastern Brazil: A Case Study

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT A comprehensive screening of different environmental contaminants (total metals, thermostable metal fractions associated with detoxification, and persistent organic pollutants) was conducted in an endangered common thresher shark (Alopias vulpinus ) individual incidentally captured in southeastern Brazil.
Sidney Fernandes Sales Junior   +10 more
wiley   +1 more source

DNA identification of sharks and rays.

open access: yes, 2012
262 p. : ill. (some col.) ; 26 cm.In an effort to provide a framework for the accurate identification of elasmobranchs, driven in large part by the needs of parasitological studies, a comprehensive survey of DNA sequences derived from the mitochondrial ...
Rosana, K. A. M.   +5 more
core  

Trace Element Contamination in Top Predatory Elasmobranchs From the Southern Black Sea: Implications for Ecosystem Health and Risk Assessment

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Environmental pollution resulting from the rapid increase in human population, urbanization, intensive use of chemicals in agriculture, and industrial development has reached a level that threatens natural life today. Trace elements are one of the most important factors causing significant levels of pollution in the environment and are added ...
Levent Bat   +3 more
wiley   +1 more source

The impact of White Shark (Carcharodon carcharias) sightings and attacks on recreational water use patterns in False Bay

open access: yes, 2013
White sharks (Carcharodon carcharias) are apex predators that play an important role in the structure and functioning of marine ecosystems. However, despite both their ecological importance and threatened conservation status this species is still subject
Engelbrecht, Tamlyn
core  

Scientists concerned over juvenile fishing of sharks, manta Business Standard dated 9th September 2016 [PDF]

open access: yes, 2016
Expressing concern over juvenile fishing of sharks and manta rays, scientists, experts and fishermen in a meeting today emphasised on the need to curb the practice of unsustainable fishing of endangered marine resources.
CMFRI, Library
core  

Den attendance by Arctic foxes experiencing 10 years of increasing tourism

open access: yesWildlife Biology, EarlyView.
Wildlife tourism is a growing industry, and an increasing number of people seek to observe and interact with wild animals in their natural surroundings. In Iceland, the native Arctic fox Vulpes lagopus is widespread and has been under heavy hunting pressure for centuries.
Ester Rut Unnsteinsdóttir   +2 more
wiley   +1 more source

A framework for the ethical use of animal‐borne devices in post‐release monitoring following rehabilitation

open access: yesWildlife Biology, EarlyView.
Rehabilitation and release contribute to conservation efforts for threatened species. Ensuring that these efforts are effective requires a good understanding of the factors which determine survival and integration of released animals into wild populations.
Jessica Harvey‐Carroll   +3 more
wiley   +1 more source

Carbonated Fluorapatite‐Gelatin‐Composites: Morphogenesis and Structure of Kniep's Dumbbells

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
Inspired by the pioneering work of Prof. Rüdiger Kniep on fluorapatite‐gelatin nanocomposites also known as “Kniep's Dumbbells,” this study investigates carbonated fluorapatite‐gelatin aggregates synthesized by the double diffusion technique within a gelatin gel.
Elena V. Sturm   +6 more
wiley   +1 more source

Behaviour and conservation of whale sharks on the Belize Barrier Reef [PDF]

open access: yes, 2003
EThOS - Electronic Theses Online ServiceGBUnited ...
Graham, Rachel T
core  

Opportunities and Alliances: The Relational Dynamics of Criminal Collusion in Latin America

open access: yesThe British Journal of Sociology, EarlyView.
ABSTRACT Based on ethnographic fieldwork in Mexico and judicial wiretap analysis in Argentina, this paper shows that collusion between state actors and violent non‐state actors operates through fluid and competitive relational networks rather than stable hierarchies or fixed institutional arrangements.
Eldad J. Levy, Javier Auyero
wiley   +1 more source

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