Results 51 to 60 of about 458 (119)
Speed‐dependent locomotor patterns during steady swimming in a demersal shark
Journal 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
Frontiers in Marine ScienceBlacktip sharks (Carcharhinus limbatus) are a circumglobal species that rely on nearshore nursery habitats during their early years. Movement patterns and habitat use of blacktip sharks in the Hawaiian Islands is poorly understood, and no nursery ...
Lauren A. Moe +6 more
doaj +1 more source
How Fragmented Is eDNA? A Case Study on Shark DNA in Tropical Reef Seawater
Environmental DNA, Volume 7, Issue 4, July–August 2025.This study quantified mitochondrial eDNA fragment lengths in offshore tropical seawater using qPCR assays targeting amplicons from 119 to 15,727 bp in tiger shark (Galeocerdo cuvier). Copy numbers steeply declined with increasing fragment size, with successful amplification up to 1518 bp and a calculated mean undamaged fragment size of 256 bp.
Katrina M. West, Bruce Deagle
wiley +1 more source
Scaling of bite force corresponds with ontogenetic niche shifts in coastal elasmobranchs
Frontiers in Marine ScienceIntroductionPredators, such as sharks, play important ecological roles in coastal ecosystems when abundant and these roles change over ontogeny. However, these shifts in ecological role are often not evaluated in light of feeding performance.
Joshua A. Cullen +3 more
doaj +1 more source
Ciencias Marinas, 2001 The spatial pattern of the fauna associated with floating objects in the eastern tropical Pacific (ETP) was analyzed. Different presence indexes for the groups of species caught incidentally in log sets were estimated, using information from the Inter ...
R Solana-Sansores
doaj +1 more source
Shark fisheries in Central America a review and update.
Uniciencia, 2000 La demanda por derivados del tiburón, especialmente aletas y cartílago, ha llevado a una expansión de las pesquerías y del comercio a través de la región. El incremento en el esfuerzo pesquero, las escasas referencias biológicas y la falta de manejo, son
José Rodrigo Rojas M. +5 more
doaj
Tecnociencia, 2015 El presente trabajo tuvo como finalidad caracterizar la pesca de tiburones en los manglares de David. Para ello se realizaron giras mensuales a bordo de embarcaciones artesanales entre septiembre de 2010 y junio de 2011.
Yolani A. Robles P. +2 more
doaj
Taxonomic assessment of sharks occurring in Pakistan (northern Arabian Sea)
The European Zoological JournalWe 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
Environmental DNA detection tracks established seasonal occurrence of blacktip sharks (Carcharhinus limbatus) in a semi-enclosed subtropical bay. [PDF]
Sci Rep, 2020 Postaire BD +4 more
europepmc +1 more source
Using DNA Metabarcoding of Cloacal Swabs to Elucidate the Diets of Four Coastal Shark Species
WildThe Atlantic sharpnose (Rhizoprionodon terraenovae), blacknose (Carcharhinus acronotus), blacktip (Carcharhinus limbatus), and bonnethead (Sphyrna tiburo) sharks are commonly encountered large mobile consumers found in the estuaries along the western ...
Savannah J. Ryburn +5 more
doaj +1 more source