National Fisherman


TRAVERSE CITY, Mich. (AP) — Scientists said Monday they have documented for the first time that an Asian carp species has successfully reproduced within the Great Lakes watershed, an ominous development in the struggle to slam the door on the hungry invaders that could threaten native fish.
 
An analysis of four grass carp captured last year in Ohio's Sandusky River, a tributary of Lake Erie, found they had spent their entire lives there and were not introduced through means such as stocking, according to researchers with the U.S. Geological Survey and Bowling Green State University.
 
Grass carp are among four species imported from Asia decades ago to control algae and unwanted plants in controlled settings such as sewage treatment lagoons. They escaped into the wild and have spread into the Mississippi and other rivers and lakes across the nation's heartland.
 
Of greatest concern in the Great Lakes region are bighead and silver carp, prolific breeders that gobble huge amounts of plankton — tiny plants and animals that are vital to aquatic food chains. Scientists say if they gain a foothold in the lakes, they could spread widely and destabilize a fishing industry valued at $7 billion.
 
Read the full story at Bloomberg Businessweek>>

Inside the Industry

Ray Hilborn, a University of Washington professor of aquatic and fishery sciences, recently received the 2016 International Fisheries Science Prize at the World Fisheries Congress in Busan, South Korea.

The award was given to Hilborn by the World Council of Fisheries Societies’ International Fisheries Science Prize Committee in recognition of his 40-year career of “highly diversified research and publication in support of global fisheries science and conservation.”

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Legislators from Connecticut and Massachusetts complained about the current “out-of-date allocation formula” in black sea bass, summer flounder and scup fisheries in a letter to the U.S. Department of Commerce earlier this week.

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