Results 41 to 50 of about 391 (136)
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
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ABSTRACT Climate vulnerability in sharks and rays is unevenly distributed across habitats and ecological groups, reflecting differences in exposure pathways and biological constraints. Using an updated application of the Integrated Risk Assessment for Climate Change (IRACC) framework, we conducted a global reassessment of climate vulnerability for 95 ...
Ava Graham, Daniel M. Moore
wiley +1 more source
Field Observations of the Behaviour of Blackfin Reef Sharks (Carcharhinus melanopterus)
The chondrichthyan lineage diverged from the osteichthyan line around 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, intelligent actions including social interactions have been noted in the ...
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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 +4 more
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This study developed and validated the first genus‐specific eDNA assay for epaulette sharks (Hemiscyllium spp.), targeting the NADH4 gene. Field application in Raja Ampat detected H. freycineti at six of seven locations, including one location (Dayan) where daytime visual surveys failed, demonstrating this tool's value for monitoring protected species.
Danang Ambar Prabowo +10 more
wiley +1 more source
Ecological insights to inform management of shark catches in Muncar, Indonesia
Shark populations face global declines, primarily as a result of overfishing. These declines threaten marine ecosystems and require urgent conservation attention.
Osmaleli Osmaleli +8 more
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This study presents a comprehensive eDNA metabarcoding protocol optimized for monitoring fish biodiversity in coral reefs and other remote marine environments. By combining an autonomous underwater filtration system, Oxford Nanopore sequencing, and a 12S reference database specifically developed for French Polynesia, the method enables efficient and ...
Lucie Cartairade +5 more
wiley +1 more source
Drone-Based High-Resolution Tracking of Aquatic Vertebrates
Determining the small-scale movement patterns of marine vertebrates usually requires invasive active acoustic tagging or in-water monitoring, with the inherent behavioural impacts of those techniques.
Vincent Raoult +2 more
doaj +1 more source
The Overlooked Threat of Global Warming on Elasmobranch Fertility
ABSTRACT Climate change is increasingly recognised as a critical threat to global biodiversity, yet its impacts on reproductive processes remain poorly understood in many marine taxa. Elasmobranchs (sharks, skates and rays) represent a particularly vulnerable group due to their peculiar life histories, low fecundity, and diverse reproductive modes.
Noémie Coulon +3 more
wiley +1 more source
Similar bacterial communities on healthy and injured skin of black tip reef sharks
Background Sharks are in severe global decline due to human exploitation. The additional concern of emerging diseases for this ancient group of fish, however, remains poorly understood. While wild-caught and captive sharks may be susceptible to bacterial
Claudia Pogoreutz +7 more
doaj +1 more source

