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Extinction risk and conservation of the world’s sharks and rays
Overall chondrichthyan extinction risk is substantially higher for sharks, rays, and chimaeras than for most other vertebrates, and only one-third of species are considered safe.
Shark nursery areas: concepts, definition, characterization and assumptions
A new more quantitative definition of shark nursery areas is proposed that requires 3 criteria to be met for an area to be identified as a nursery: sharks are more commonly encountered in the area than other areas; sharks have a tendency to remain or return for extended periods; and the area or habitat is repeatedly used across years.
Automated acoustic tracking of aquatic animals: scales, design and deployment of listening station arrays
Data management and analysis techniques are in their infancy and few standardised techniques exist, but they provide many advantages for studying aquatic animal movement patterns, but also has limitations and provides unique difficulties for users.
Adaptive management of the Great Barrier Reef: A globally significant demonstration of the benefits of networks of marine reserves
Comprehensive review of available evidence shows major, rapid benefits of no-take areas for targeted fish and sharks, in both reef and nonreef habitats, with potential benefits for fisheries as well as biodiversity conservation.
Microsatellite and mitochondrial DNA analyses of the genetic structure of blacktip shark (Carcharhinus limbatus) nurseries in the northwestern Atlantic, Gulf of Mexico, and Caribbean Sea
Differences in the magnitude of maternal vs. biparental genetic differentiation support female philopatry to northwestern Atlantic, Gulf of Mexico, and Caribbean Sea natal nursery regions with higher levels of male‐mediated gene flow.
Evidence of Philopatry in Sharks and Implications for the Management of Shark Fisheries
Evidence of philopatric behavior in diverse species of sharks is accumulating through various sources of data, including studies of shark behavior, genetics and fisheries. If sharks display natural
A review of detection range testing in aquatic passive acoustic telemetry studies
This study presents a comprehensive review of how acoustic detection range has been considered and assessed to date, summarizes important variables to monitor when determining the detection range of a receiver array, and provides recommendations to account for detection range during experimental design, analysis and data interpretation.
Estimation of short-term centers of activity from an array of omnidirectional hydrophones and its use in studying animal movements
The utility of the method was assessed using data from a study of neonate blacktip sharks, with results equivalent to a short-term center of activity rather than a precise estimate of location at a single time.
Sharks in nearshore environments: models, importance, and consequences
How different species utilise nearshore areas and how they overcome the challenges they face in inhabiting these areas are reviewed to provide a better understanding of how sharks use nearshore environments and assist in making conservation and management decisions for these regions.
Estimation of mortality of juvenile blacktip sharks, Carcharhinus limbatus, within a nursery area using telemetry data
The results suggest that young sharks are most vulnerable to all types of mortality during this period, and that Sharks that survived beyond the first 15 weeks successfully left the nursery and were presumed to have migrated southward during fall months.