PORT ROPER (Australia)- Charles Darwin University (CDU) researchers and First Nations Yugul Mangi Rangers have discovered a new population of a rare and threatened Speartooth Sharks in the Northern Territory’s Roper River. The Speartooth Shark or Glyphis glyphis is currently listed as Critically Endangered under Australia’s national environmental legislation, with a veryContinue Reading
BURNABY (Canada)- One in seven species of deepwater sharks and rays are threatened with extinction due to overfishing, according to a new eight-year study released today in the journal Science. Specifically, the analysis found that sharks and rays are caught as incidental bycatch in fisheries targeting more commercially valuable species.Continue Reading
VICTORIA (SEYCHELLES)- A first report of grey reef sharks resting under reef ledges in Seychelles, by Save Our Seas researchers changes what we know about how they breathe (they don’t need to swim continuously to stay alive) – and re-opens the case for the science of sleeping sharks. Predators inContinue Reading
PERTH (Australia)- Open ocean sharks are elusive and mysterious. They undertake vast journeys that span hundreds to thousands of kilometres across immense ocean basins. We know very little about the secret lives of ocean sharks, where they live and why they are there. Like silky sharks. By Shona Murray, The UniversityContinue Reading
GENEVA (Switzerland)- Scientists have sequenced the genomes of two endangered sharks. Low genetic diversity and signs of inbreeding ring alarm bells for great hammerheads, but there may be hope for shortfin makos that showed higher genetic diversity and limited inbreeding. The first chromosome level genome sequences for great hammerhead andContinue Reading
How do sharks and tuna react to being caught by hook-and-line and then released? Well, they swim twice as fast as their normal cruising speed, according tot researchers at The Royal Society. Sharks and tuna normally swim at elevated speeds relative to cruising speeds only during strenuous activity, such asContinue Reading
GENEVA (Switzerland)- Tracking silky sharks has revealed them to be swift swimmers. But they’re also one of the most heavily fished sharks globally. Will expanded marine protection in the Tropical Eastern Pacific go far enough to protect these long-distance swimmers? Smooth, slender and swift. Enter the silky shark, one ofContinue Reading