Results 31 to 40 of about 1,619 (182)

The Phenomenon of Piebaldism in Sharks: A Review of Global Sightings and Patterns. [PDF]

Ecol Evol
Chromatic disorders like piebaldism—a rare form of leucism causing partial pigment loss—have been documented in 25 wild shark cases across 17 species and 11 families, with varying anatomical distribution. This study compiles published and unpublished records to better understand the taxonomic and geographical spread of piebaldism and its potential ...
Whitehead DA, Parmegiani A, Gobbato J, Mizyan M, Askin A, Scroglieri S, Galli P, Seveso D, Montano S, Gayford JH.   +9 more
europepmc   +2 more sources

Behaviour of mesopredatory coral reef fishes in response to threats from sharks and humans

Scientific Reports, 2023
Both sharks and humans present a potentially lethal threat to mesopredatory fishes in coral reef systems, with implications for both population dynamics and the role of mesopredatory fishes in reef ecosystems.
A. Asunsolo-Rivera, E. Lester, T. Langlois, B. Vaughan, M. I. McCormick, S. D. Simpson, M. G. Meekan   +6 more
doaj   +1 more source

At the Turn of the Tide: Space Use and Habitat Partitioning in Two Sympatric Shark Species Is Driven by Tidal Phase

Frontiers in Marine Science, 2020
Coexistence of ecologically similar species occupying the same geographic location (sympatry) poses questions regarding how their populations persist without leading to competitive exclusion.
James S. E. Lea, James S. E. Lea, James S. E. Lea, Nicolas E. Humphries, Jenny Bortoluzzi, Jenny Bortoluzzi, Ryan Daly, Ryan Daly, Ryan Daly, Rainer G. von Brandis, Ela Patel, Evan Patel, Christopher R. Clarke, David W. Sims, David W. Sims, David W. Sims   +15 more
doaj   +1 more source

Parasitic nematodes of marine fishes from Palmyra Atoll, East Indo-Pacific, including a new species of Spinitectus (Nematoda, Cystidicolidae) [PDF]

ZooKeys, 2019
Here, we present the results of a taxonomic survey of the nematodes parasitizing fishes from the lagoon flats of Palmyra Atoll, Eastern Indo-Pacific. We performed quantitative parasitological surveys of 653 individual fish from each of the 44 species ...
David González-Solís, Lilia C. Soler-Jiménez, M. Leopoldina Aguirre-Macedo, John P. Mclaughlin, Jenny C. Shaw, Anna K. James, Ryan F. Hechinger, Armand M. Kuris, Kevin D. Lafferty, Víctor M. Vidal-Martínez   +9 more
doaj   +3 more sources

Carcharhinus melanopterus

, 2019
Carcharhinus melanopterus (Quoy & Gaimard 1824) — Blacktip reef shark (Fig. 4) Status at New Ireland. First recorded from New Ireland as Carcharias melanopterus by Peters (1877: 853); reported as Carcharhinus spallanzani (non Péron & LeSueur in LeSueur, 1822) by Munro (1958: 112).
Andréfouët, Serge, Chen, Wei-Jen, Kinch, Jeff, Mana, Ralph, Russell, Barry C., Tully, Dean, White, William T.   +6 more
openaire   +2 more sources

Effects of protection on large-bodied reef fishes in the western Indian Ocean. [PDF]

Conserv Biol
Abstract Predatory and large‐bodied coral reef fishes have fundamental roles in the functioning and biodiversity of coral reef ecosystems, but their populations are declining, largely due to overexploitation in fisheries. These fishes include sharks, groupers, Humphead wrasse (Cheilinus undulatus), and Green Humphead parrotfish (Bolbometopon muricatum).
Samoilys M, Osuka KE, Roche R, Koldewey H, Chabanet P.   +4 more
europepmc   +2 more sources

Carcharhinus melanopterus

, 2018
Carcharhinus melanopterus (Quoy & Gaimard, 1824) Blacktip Reef Shark Carcharias melanopterus Quoy & Gaimard, 1824: 194, pl. 43 (figs 1, 2). Lectotype: MNHN 0000-1129; lectotype designation by Eschmeyer (1998). Type locality: Pulau Waigeo, West Papua, Indonesia. Local synonymy: Carcharias melanopterus— Peters, 1877: 853 (New Ireland).
White, William T., Ko'Ou, Alfred
openaire   +2 more sources

On the Movements of the Blacktip Reef Shark (Carcharhinus melanopterus)

, 2023
One challenge in studying the natural behaviour of wild animals is the requirement of detailed observations spanning extended periods of time, which is particularly difficult in the case of sharks. As a result, remote sensing technologies are increasingly employed in which the data received is considerably simplified.
openaire   +1 more source

The repulsive and feeding-deterrent effects of electropositive metals on juvenile sandbar sharks (Carcharhinus plumbeus) [PDF]

, 2009
Reducing shark bycatch and depredation (i.e., damage caused by sharks to gear, bait, and desired fish species) in pelagic longline fisheries targeting tunas and swordfish is a priority. Electropositive metals (i.e., a mixture of the lanthanide elements
Brill, Richard, Bushnell, Peter, Smith, Leonie, Speaks, Coley, Stroud, Eric, Sundaram, Rumya, Wang, John   +6 more
core   +1 more source

Spatial and temporal analysis of juvenile blacktip reef shark (Carcharhinus melanopterus) demographies identifies critical habitats

Journal of Fish Biology, 2023
AbstractReef shark species have undergone sharp declines in recent decades, as they inhabit coastal areas, making them an easy target in fisheries (i.e., sharks are exploited globally for their fins, meat, and liver oil) and exposing them to other threats (e.g., being part of by‐catch, pollution, and climate change). Reef sharks play a critical role in
Kim B. Eustache, Emiel van Loon, Jodie L. Rummer, Serge Planes, Isabel Smallegange   +4 more
openaire   +3 more sources