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NOAA designates critical habitat for Atlantic sturgeon

Published by FiskerForum, 07-09-2017 · info@fiskerforum.dk

NOAA Fisheries has designated critical habitat for Atlantic sturgeon as an important step to ensuring their recovery.

The critical habitat designation will require federal agencies to consult NOAA Fisheries if they operate or fund activities that may affect designated critical habitat in more than 3968 miles of coastal river habitat from Maine to Florida.

Atlantic sturgeon was listed under the Endangered Species Act in 2012 and is comprised of the threatened Gulf of Maine distinct population segment and the endangered New York Bight, Chesapeake Bay, Carolina, and South Atlantic distinct population segments. The ESA requires that NOAA Fisheries designate critical habitat when a species is listed as threatened or endangered.

‘We look forward to working with our federal partners to reduce potential impacts to Atlantic sturgeon critical habitat,’ said Samuel D. Rauch III, deputy assistant administrator for regulatory programs at NOAA Fisheries. ‘Our focus now will be on providing guidance to federal agencies to help them carry out their actions efficiently and effectively while minimising impacts to habitat that is critical to these endangered and threatened populations of sturgeon.’

Atlantic sturgeon are anadromous and use coastal and estuarine waters throughout their lives, and travel to rivers to spawn or lay their eggs. Unlike some anadromous fish, sturgeon do not die after spawning and will repeatedly return to spawn. They can grow up to 14 feet long, weigh up to 800lb, and live up to 60 years.

Historically, Atlantic sturgeon inhabited approximately 38 rivers in the United States spanning from Maine to Florida. Scientists identified 35 of those as spawning rivers. Atlantic sturgeon can now be found in approximately 32 of these rivers, and spawn in at least 20 of them.

Critical habitat areas in coastal rivers were identified based on physical and biological features, such as substrate type in the river bed, water temperature and salinity, that are essential to the conservation of Atlantic sturgeon, particularly for spawning and development.

Atlantic sturgeon were harvested heavily in the twentieth century, particularly for their roe, which was used for caviar. With a decline in abundance of Atlantic sturgeon, in 1998 the Atlantic States Marine Fisheries Commission issued a coast-wide moratorium on the harvest of Atlantic sturgeon, and NOAA Fisheries followed with a similar moratorium in federal waters.

Source: NOAA

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