Results 51 to 60 of about 389 (135)

Taxonomic assessment of sharks occurring in Pakistan (northern Arabian Sea)

open access: yesThe European Zoological Journal
We described the Sharks of Pakistan on the basis of external morphology represented by 41 species belonging to 10 families. Family Pseudocarchariidae (Pseudocarcharias kamoharai), family Alopidae (Alopias pelgicus, A.
P. J. A. Siddiqui, A. Javed
doaj   +1 more source

Zero‐shot shark tracking and biometrics from aerial imagery

open access: yesMethods in Ecology and Evolution, Volume 16, Issue 9, Page 2023-2035, September 2025.
Abstract The recent widespread adoption of drones for studying marine animals provides opportunities for deriving biological information from aerial imagery. The large scale of imagery data acquired from drones is well suited for machine learning (ML) analysis.
Chinmay K. Lalgudi   +4 more
wiley   +1 more source

Visual Target Discrimination in Blacktip Sharks (Carcharhinus melanopterus) and Grey Sharks (C. menisorrah)

open access: yes, 1966
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
Tester, Albert L., Kato, Susumu
openaire   +2 more sources

Speed‐dependent locomotor patterns during steady swimming in a demersal shark

open access: yesJournal of Fish Biology, Volume 107, Issue 2, Page 394-405, August 2025.
Abstract Swimming ability is critical for navigating complex benthic habitats, yet the biomechanical strategies demersal sharks employ to modulate body and fin movements across varying speeds remain largely unexplored. This study examines speed‐dependent kinematic patterns in the small‐spotted catshark (Scyliorhinus canicula), a benthic species with ...
Fidji Berio   +2 more
wiley   +1 more source

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

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

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

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

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

Insights into the Ecology and Movements of the Blacktip Reef Shark (Carcharhinus melanopterus)

open access: yes
A challenge in studying the natural behaviour of wild animals is the need for detailed observations spanning extended periods of time, which are particularly difficult to obtain in the case of sharks. As a result, tagging and remote sensing technologies are usually employed.
Ila France Porcher, Brian W. Darvell
openaire   +1 more source

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