Water Wire

Wildlife

Research by the University of Exeter, University of Lancaster, Fiji Shark Lab, and Beqa Adventure Divers found that bull sharks at Fiji's Shark Reef Marine Reserve have active social preferences and form friendships similar to humans. Lead researcher Natasha D. Marosi's six-year study of 184 sharks revealed complex social behaviors, with adult sharks forming the network's core and preferring partners of similar size.

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The Chesapeake Bay Program's Invasive Catfish Workgroup is using research from the Maryland Department of Natural Resources, Virginia Tech, Salisbury University, and the Virginia Institute of Marine Science to manage invasive blue and flathead catfish. Studies reveal these species prey on economically important native species including blue crabs, river herring, and striped bass, threatening the Bay's ecosystem.

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Researchers at UNC Chapel Hill Institute of Marine Sciences, led by Chelsea Black, PhD, conducted an experiment demonstrating that satellite tags can transmit signals from inside a shark's stomach. The study was prompted by unusual tracking data from a tagged red drum named Swim Shady, suggesting the fish may have been consumed by a large predator.

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Unseasonably warm weather in Arizona is increasing rattlesnake encounter risks this spring. The Arizona Game and Fish Department's Audrey Owens advises staying on marked trails, watching your step, and backing away if you encounter one of Arizona's 13 rattlesnake species. Most bites occur when people attempt to capture snakes rather than leaving them alone.

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A drawdown of Marsh Lake in the Lac qui Parle Wildlife Management Area is planned for spring and summer 2026 to improve fish and wildlife habitat. Water levels will be lowered from 938 feet to 936 feet, with area wildlife manager Walt Gessler noting that a previous 2019-2020 drawdown successfully increased emergent vegetation and improved water quality.

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