Results 81 to 90 of about 1,598 (178)

A new Oligocene site with terrestrial mammals and a selachian fauna from Minqar Tibaghbagh, the western Desert of Egypt [PDF]

open access: yes, 2017
A new fossil site at Minqar Tibaghbagh, east of Siwa, in the Egyptian Western Desert is described. This represents the first place in Egypt outside the Fayum Depression yielding Paleogene, terrestrial mammals.
Bosselaers, M.   +5 more
core   +4 more sources

Abundance patterns of reef sharks and predatory fishes on differently zoned reefs in the offshore Townsville region final report to the Great Barrier Reef Marine Park Authority [PDF]

open access: yes, 2008
Sharks were counted in six 500 x 20 m transects on the slope of each reef during late March 2008. Densities of whitetip reef sharks (Triaenodon obesus) were twice as high on green reefs as on blue reefs but were twice as high on pink reefs as on green ...
Ayling, A.M., Choat, J.H.
core  

New evidences on the distribution of predatory pelagic sharks in the tuna grounds of the Indian Ocean [PDF]

open access: yes, 1969
Since the commencement of the exploitation of oceanic tuna resources of the Indian Ocean seventeen years ago, the hooked rates for the tuna species have declined in many areas of the Ocean but there are no evidences of such a trend in the case of the ...
Sivasubramaniam, K.
core  

Field Observations of the Behaviour of Blackfin Reef Sharks (Carcharhinus melanopterus)

open access: yes, 2022
The chondrichthyan lineage diverged from the osteichthyan line 440 million years ago, resulting in a vast evolutionary gulf between modern elasmobranchs and other vertebrates. Though this has supported the assumption that sharks are ancient, dangerous, and binary-minded, the few ethological studies done have noted intelligent actions including social ...
openaire  

Using local ecological knowledge to identify shark river habitats in Fiji (South Pacific) [PDF]

open access: yes, 2017
Local ecological knowledge (LEK) and traditional ecological knowledge (TEK) have the potential to improve community-based coastal resource management (CBCRM) by providing information about the presence, behaviour and ecology of species.
BRUNNSCHWEILER, JUERG M.   +2 more
core  

Breeding status and review of conservation of Carcharhinus melanopterus in captivity

open access: yes, 2021
Le requin pointe-noire (Carcharhinus melanopterus) est une espèce pélagique fréquentant les eaux tropicales du monde entier. Son élevage est réalisé dans de nombreux aquariums, s’inscrivant dans des programmes de conservation gérés conjointement. Leur but est d’étudier la reproduction de cette espèce en captivité, pour mieux en comprendre les enjeux et
openaire   +1 more source

Identification of Species Composition in the Hong Kong Shark Fin Trade using Genetic Techniques and Trader Records [PDF]

open access: yes, 2001
Trade in shark fins represents one of the most serious threats to shark populations worldwide. Previous studies have indicated that certain types of fins are more valued than others, but due to the largely unregulated and often covert nature of the trade,
Clarke, Shelley C.   +2 more
core   +1 more source

Microenvironments of black-tip reef sharks (Carcharhinus melanopterus) provide niche habitats for distinct bacterial communities

open access: yesCoral Reefs
Abstract Animal holobionts constitute diverse yet interconnected landscapes of microenvironments that harbor specific bacterial communities with distinct functions. An increasing body of literature suggests a partitioning and distinct functional profiles of bacterial communities across shark microenvironments, which has led to the proposition
Claudia Pogoreutz   +5 more
openaire   +1 more source

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