Results 71 to 80 of about 1,619 (182)

Role, importance and vulnerability of top predators on the Great Barrier Reef: a review [PDF]

open access: yes, 2010
The purpose of this review is to evaluate the ecological role of predators on the Great Barrier Reef (GBR), their vulnerability to human activities and their contribution to ecosystem and economic values.
Ayling, T., Ceccarelli, D.
core  

Using citizen science photographs to identify reproductive events in an oviparous elasmobranch

open access: yesJournal of Fish Biology, Volume 107, Issue 2, Page 419-430, August 2025.
Abstract Identifying critical habitats is important for the effective management of vulnerable species. Critical habitats, such as mating or nursery grounds, support populations during key life stages and help to maximise reproductive output and population growth. In elasmobranchs, mating often happens over a defined season, suggesting sites associated
Rachel Mawer   +4 more
wiley   +1 more source

Shark landings at Kakdwip in West Bengal [PDF]

open access: yes, 1994
From 1992 onwards 8 hooks and line units master hooks only and 6 units using gillnet in combination with hooks and line started operation from Kakdwlp base. These units are operated in regions 80 - 100 km from shore and at a depth of 40 - 45 m.
Burman, Bijoy Krishna
core  

Mission ornithologique à l'îlot Loop (îles Chesterfield) et transects en mer de Corail et dans le bassin des Loyauté, 20-28 octobre 2008 [PDF]

open access: yes, 2008
IRD, NouméaAbstract – Seabird survey of Ilot Loop (Chesterfield islands) and at-sea transects, 20-28 October 2008. A census of the birds of Ilot Loop (Chesterfield Atoll, Coral Sea) was taken during a trip of patroller ship La Glorieuse of the French ...
Borsa, Philippe
core   +2 more sources

Fine-scale movements of juvenile blacktip reef sharks Carcharhinus melanopterus in a shallow nearshore nursery

open access: yesMarine Ecology Progress Series, 2019
Limited information is available on the fine-scale movements and habitat use of juvenile sharks in very shallow (
George, Lachlan W.   +3 more
openaire   +2 more sources

Simulated ocean acidification affects shark tooth morphology

open access: yesFrontiers in Marine Science
Changing ecological factors pose a challenge to many organisms. Global changes and the associated environmental changes have major impacts on marine organisms and threaten the biodiversity of marine ecosystems.
Maximilian Baum   +5 more
doaj   +1 more source

Population genetics of four heavily exploited shark species around the Arabian Peninsula. [PDF]

open access: yes, 2015
The northwestern Indian Ocean harbors a number of larger marine vertebrate taxa that warrant the investigation of genetic population structure given remarkable spatial heterogeneity in biological characteristics such as distribution, behavior, and ...
Berumen, ML   +4 more
core   +2 more sources

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

Comparative Space Use of Sympatric Sharks at a Remote Island in the South Pacific Ocean

open access: yesEcology and Evolution, Volume 15, Issue 6, June 2025.
The space use of 34 dusky (Carcharhinus obscurus), 32 Galapagos (C. galapagensis), 47 tiger (Galeocerdo cuvier), and 20 sandbar (C. plumbeus) sharks was monitored with acoustic telemetry between 2021 and 2024 in coastal waters around Norfolk Island, Australia, a remote small island in the southwestern Pacific Ocean.
Jordan K. Matley   +8 more
wiley   +1 more source

Pelagic sharks by-catch in the tuna longline fishery of the Indian EEZ [PDF]

open access: yes, 2002
Several species of pelagic and oceanic sharks are caught by the tuna longliners of FSI while surveying the oceanic tuna resources in the Indian EEZ. Though the sharks are not targeted species in tuna longlining, they constitute a major share of the ...
Bhargava, A K   +2 more
core  

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