Fish

Peter Bowyer, the facility manager at AquaBounty Technologies, holds one of the last batch of conventional Atlantic salmon raised at the commercial fish farm in Albany, Ind., Wednesday, June 19, 2019. AquaBounty will be producing the first genetically modified animals approved for human food in the U.S. and one way companies are pushing to transform plants and animals, as consumer advocacy groups call for greater caution. (AP Photo/Michael Conroy)

FILE - In this May, 22, 2019, file photo, a woman walks with her dogs at Newcomb Hollow Beach, where a boogie boarder was bitten by a shark in 2018 and later died of his injuries, in Wellfleet, Mass. Researchers on Cape Cod are launching a new study focused on the hunting and feeding habits of the region's great white sharks following two attacks on humans in 2018, including the state's first fatal one in more than 80 years. (AP Photo/Charles Krupa, File)

FILE - In this Wednesday, July 8, 2015 file photo, herring are unloaded from a fishing boat in Rockland, Maine. A study published Tuesday, June 11, 2019 finds a warmer world may lose a billion tons of fish and other marine life by the end of the century. The international study used computer models to project that for every degree Celsius the world warms, the total weight of life in the oceans drop by 5%. (AP Photo/Robert F. Bukaty, File)

FILE - In this Wednesday, July 8, 2015 file photo, herring are unloaded from a fishing boat in Rockland, Maine. A study published Tuesday, June 11, 2019 finds a warmer world may lose a billion tons of fish and other marine life by the end of the century. The international study used computer models to project that for every degree Celsius the world warms, the total weight of life in the oceans drop by 5%. (AP Photo/Robert F. Bukaty, File)

This April 2019 photo provided by Audrey Velasco-Hogan shows a dragonfish during a specimen collection session along the coast of San Diego, Calif. The deep-sea creature's teeth are transparent underwater - virtually invisible to prey. According to research released on Wednesday, June 5, 2019, they are made of the same materials as human teeth, but the microscopic structure is different. And as a result, light doesn’t reflect off the surface. (Audrey Velasco-Hogan via AP)

Photo Courtesy: Boulder City Parks and Recreation Department

FILE - This Thursday, Aug. 2, 2018, file photo shows the U.S. Food and Drug Administration building behind FDA logos at a bus stop on the agency's campus in Silver Spring, Md. The Food and Drug Administration’s first broad testing of food for a worrisome class of nonstick, stain-resistant industrial compounds found high levels in some grocery store meats and seafood and in off-the-shelf chocolate cake, according to unreleased findings FDA researchers presented at a scientific conference in Europe. (AP Photo/Jacquelyn Martin, File)

U.S. first lady Melania Trump talks with children during a visit to a digital art museum in Tokyo Sunday, May 26, 2019. (Pierre-Emmanuel Deletree/Pool Photo via AP)

FILE - In this June 13, 2012, file photo, Asian carp, jolted by an electric current from a research boat, jump from the Illinois River near Havana, Ill. The U.S. Army Corps of Engineers' commanding officer has endorsed a $778 million plan for upgrading a lock-and-dam complex near Chicago to prevent Asian carp from invading the Great Lakes. Lt. Gen. Todd Semonite signed the final report Thursday, May 23, 2019. It now goes to Congress, which would need to give authorization and funding for the project to proceed. (AP Photo/John Flesher, File)