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Can These Hedge Trimmers With Fins Avoid a Brush With Extinction?


Can These Hedge Trimmers With Fins Avoid a Brush With Extinction?
Scientists have found that sawfish are thriving in some habitats while vanishing from others.
A largetooth sawfish released into waters in northern Australia after being rescued from a drying floodplain waterhole.Credit.Peter Kyne
By Lesley Evans Ogden
Feb. 10, 2021
Sawfish look something like hedge trimmers with fins and can reach lengths of 17 feet. To Jasmin Graham, president and chief executive of Minorities in Shark Sciences, it’s sometimes hard to believe such weird fish exist.
“They look so intimidating if you look at them from the top down,” she said. But from the bottom, “they have these cute, adorable little gray mouths that kind of look like they’re smiling.” ....

United States , United Kingdom , El Salvador , East Timor , Sri Lanka , Jasmin Graham , Peter Kyne , Colin Simpfendorfer , John Carlson , Nick Dulvy , Helen Yan , Simon Fraser , Sonja Fordham , Minorities In Shark Sciences , Species Research , James Cook University , Simon Fraser University , International Union For The Conservation Of Nature , Atmospheric Administration Fisheries , National Oceanic , Shark Advocates International , Shark Sciences , British Columbia , International Union , Endangered Species Research , International Trade ,

Whale threats from fishing gear 'underestimated'-534824


Whale threats from fishing gear underestimated
BBC
9th February, 2021 12:14:27
The risk that whales can get entangled in fishing nets appears to have been underestimated, according to a new study.
As many as 60% of blue whales in Canada s Gulf of St Lawrence have come into contact with fishing ropes and nets, based on scarring seen on photographs snapped by drones.
Entanglement rates were similar in another ocean giant, the fin whale.
Whales can suffocate or starve after getting tied up in fishing gear.
An estimated 300,000 whales, dolphins and porpoises a year die after being injured in nets or lines designed to target other species. ....

Species Research , University Of St Andrews , Endangered Species , Whale Threats From Fishing Gear Underestimated , Whale Threats , Canadas Gulf Of St Lawrence , Endangered Species Research , இனங்கள் ஆராய்ச்சி , பல்கலைக்கழகம் ஆஃப் ஸ்டம்ப் ஆண்ட்ரூஸ் , அருகிவரும் இனங்கள் , திமிங்கிலம் அச்சுறுத்தல்கள் , கனடாஸ் வளைகுடா ஆஃப் ஸ்டம்ப் லாரன்ஸ் , அருகிவரும் இனங்கள் ஆராய்ச்சி ,