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Extinction risk and conservation of the world’s sharks and rays
The rapid expansion of human activities threatens ocean-wide biodiversity. Numerous marine animal populations have declined, yet it remains unclear whether these trends are symptomatic of a chronicExpand
Shark nursery areas: concepts, definition, characterization and assumptions
The concept of elasmobranch species using nursery areas was introduced in the early 1900s and has been an accepted aspect of shark biology and behavior for several decades. Despite severalExpand
Diagnosing the dangerous demography of manta rays using life history theory
Background. The directed harvest and global trade in the gill plates of mantas, and devil rays, has led to increased fishing pressure and steep population declines in some locations. The slow lifeExpand
Foraging ecology of the early life stages of four sympatric shark species
Sharks may have an important role in marine ecosystems in relation to populations of fish and invertebrates at lower trophic levels. Fishery management plans stress the need for an ecosystemExpand
Ghosts of the coast: global extinction risk and conservation of sawfishes
Sawfish are arguably the world's most imperilled marine fishes. All five species are classified as highly threatened with extinction: three are Critically Endangered (smalltooth sawfish PristisExpand
Life history and population dynamics of the finetooth shark (Carcharhinus isodon) in the northeastern Gulf of Mexico
The life history and population dynamics of the finetooth shark (Carcharhinus isodon) in the north-eastern Gulf of Mexico were studied by determining age, growth, size-at-maturity, natural mortality,Expand
Is the collapse of shark populations in the Northwest Atlantic Ocean and Gulf of Mexico real
Abstract Increasing fishing pressure on sharks stocks over recent decades has resulted in declines of many populations and led to increasing concerns for their conservation. The extent of theseExpand
Do differences in life history exist for blacktip sharks, Carcharhinus limbatus, from the United States South Atlantic Bight and Eastern Gulf of Mexico?
SynopsisWe examined life history traits (e.g., mean length-at-age, growth rate, age-at-maturity) for blacktip sharks collected from two separate geographical areas (eastern Gulf of Mexico and SouthExpand
Oxygen Consumption Rate and Swimming Efficiency of the Blacknose Shark, Carcharhinus acronotus
Oxygen consumption rates and swimming efficiency of 10 blacknose sharks (4787 cm total length and 0.45-3.51 kg weight), Carcharhinus acronotus, were determined using a closed, circular respirometer.Expand