Tag Archives: catch-and-release

Scientists find Bluefin tuna quick to swim away after catch and release

Early results of a new study show catch and release has little impact on tuna. Gary Melvin, a research scientist with Fisheries and Oceans Canada, and a team of researchers are catching, tagging, releasing and tracking the mortality and movements of bluefin tuna throughout the Gulf of St. Lawrence. Last week, the research team was tagging tuna off of Tignish, P.E.I. “It’s always the big question when you hook a fish and they fight, what happens? And it’s common thought that they recover and swim away,” Melvin said. click here to read the story 10:21

Do sharks survive after the hook?

160623150856_1_540x360Fitbit-like sensors are the best tools for monitoring whether sharks survive catch-and-release fishing — essential data for fisheries management — according to a peer-reviewed study published June 23 by scientists from Mote Marine Laboratory in Sarasota, Florida. The study, published online in the scientific journal Fisheries Research, is the first to show that motion-sensing accelerometer tags detect whether a shark has survived and how it recovers from capture stress with much greater certainty than other prevailing technologies. Usually scientists fit sharks with satellite or acoustic transmitters to infer whether a shark has survived using indirect signals like location or depth. In contrast, accelerometers measure sharks’ fine-scale movements directly and with high resolution, including every tail beat, body tilt, ascent and descent. Read the rest here 16:41