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#02-18-2013 - ComFish News Roundup

alaska.fws.gov
Aquatic invasion: Asexual weed reproducing like crazy in Kenai Peninsula lakes
Joseph RobertiaRedoubt Reporter
February 17, 2013
Hearing about invasive terrestrial plants is, unfortunately, getting to be routine on the central Kenai Peninsula, as residents are asked year after year to do their part to prevent invasives, such as dandelions, bird vetch and purple loosestrife, from spreading across the land. Now a newly discovered invader — the first submerged aquatic — has set off alarms. It can cause so much damage so quickly that a small army of biologists are soliciting help to combat its spread. “This is a really bad one. This is the one we were worried about because it could hurt the fisheries of the entire Peninsula. It’s a really big deal,” said John Morton, supervisory wildlife biologist with the Kenai National Wildlife Refuge. The aquatic invader is known as “elodea” and has recently been discovered in Stormy and Daniels lakes in Nikiski, as.... http://www.alaskadispatch.com/article/aquatic-invasion-asexual-weed-reproducing-crazy-kenai-peninsula-lakes

Posted: 12:00 a.m. Monday, Feb. 18, 2013
Types of fish to eat, avoid
While fish offers many health benefits, choose your fish carefully to avoid contaminants
By Jacqui Boyle
Staff Writer
During this season of Lent, many people will follow tradition and make fish a bigger part of their diets.
While fish can offer many health benefits, as it is low-fat and packed with protein, vitamins and nutrients that can lower blood pressure and help reduce the risk of heart attack or stroke, fish also can offer risks, including exposure to mercury and polychlorinated biphenyls (PCBs). We asked Dave Clark, a clinical dietitian at Good Samaritan Hospital in Dayton, who specializes in cardiovascular health..... 2. “Salmon (wild-caught, Alaska and freshwater coho): Alaskan salmon and the waters it travels are strictly monitored by biologists making this wild-caught fish a low mercury and PCB choice. Coho salmon are raised in closed freshwater pens that minimize contaminants. Salmon contains... http://www.daytondailynews.com/news/lifestyles/types-of-fish-to-eat-avoidwhile-fish-offers-many-h/nWQQc/

Next-Generation Fish-Farming Techniques Aim For 'Sustainability'
BY Roxanne Palmer | February 17 2013 8:44 PM
By midcentury, mankind must double food production to fill the bellies of an exploding population of humans, according to the United Nations (link to doc at un.org). A big part of that growth is likely to come from farmed seafood. “With Earth’s burgeoning human population to feed, we must turn to the sea with new understanding and new technology,” famed oceanographer Jacques Cousteau said in 1973. “We need to farm it as we farm the land.” Balancing accelerated food production with sustainability is a tricky act, but on Sunday scientists at the American Association for the Advancement of Science annual meeting in Boston described how aquaculture could possibly pull it off -- and what challenges lie on the road ahead. U.S. Department of Agriculture, or USDA, aquaculture program leader Jeffrey Silverstein pointed out that 70 percent of the Earth is covered in water, yet only 1.5 percent of human food is drawn from it...... http://www.ibtimes.com/next-generation-fish-farming-techniques-aim-sustainability-1090528


















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