594 a salmon modified with an extra growth hormone gene
Andrew Pollack, "Panel Leans in Favor of Engineered Salmon," New York Times, September 20, 2010.
595 as fast as a normal salmon
Randy Rieland, "Food, Modified Food," Smithsonian, June 29, 2012.
596 about the possibility of increased levels of insulin-like growth factor
Storrs, "Hormones in Food: Should You Worry?"
597 changing the species in an unintended way
Pollack, "Panel Leans in Favor of Engineered Salmon"; Bill Chameides, "Genetically Modified Salmon: The Meta-Question," New Scientist, November 23, 2010.
598 to reduce the amount of phosphorus in their feces
Andrew Pollack, "Move to Market Gene-Altered Pigs in Canada Is Halted," New York Times, April 4, 2012.
599 They called their creation Enviropigs
University of Guelph, "Enviropig," http://www.uoguelph.ca/enviropig/index.shtml.
600 because phosphorus is a source of algae blooms
University of Guelph, "Environmental Benefits," http://www.uoguelph.ca/enviropig/environmental_benefits.shtml.
601 abandoned their project and euthanized the pigs
Pollack, "Move to Market Gene-Altered Pigs in Canada Is Halted."
602 because scientists elsewhere engineered an enzyme, phytase
Clive Cookson, "Agrochemicals: Innovation Has Slowed Since Golden Age of the 1990s," Financial Times, October 13, 2011.
603 which, when added to pig feed
Pollack, "Move to Market Gene-Altered Pigs in Canada Is Halted."
604 genetically engineer insects, including bollworms
Henry Nicholls, "Swarm Troopers: Mutant Armies Waging War in the Wild," New Scientist, September 12, 2011.
605 and mosquitoes
Michael Specter, "The Mosquito Solution," New Yorker, July 9 and 16, 2012, pp. 3846.
606 species of mosquito that carries dengue fever
Nicholls, "Swarm Troopers."
607 The larvae, having no access to tetracycline
Andy Coghlan, "Genetically Altered Mosquitoes Thwart Dengue Spreaders," New Scientist, November 11, 2010; Nicholls, "Swarm Troopers."
608 proposed the release of large numbers of their mosquitoes
Specter, "The Mosquito Solution."
609 potentially disruptive effects on the ecosystem
Nicholls, "Swarm Troopers"; Specter, "The Mosquito Solution."
610 small number of the offspring do in fact survive