06
Aug
(Beyond Pesticides, August 6, 2024) Factory fish farming companies sinched a win in Scotland in July after the Scottish government announced it would not put forward restrictions on emamectin (aka emamectin benzoate)—a toxic pesticide used to kill parasitic sea lice that also kills various nontarget marine life up and down the trophic ladder—until 2028. As reported over many years by The Ferret, an independent journalism cooperative based in Scotland, seafood corporations lobbied the Scottish government in a multiyear campaign to weaken environmental protection standards to advance their economic interests. Health and environmental advocates in the United States acknowledge the parallels of agribusiness, pesticide manufacturers, and their allies in undermining science-based policy and continue to call for intercontinental coordination on organic principles and standards that would render the use of toxic pesticides like emamectin obsolete. Emamectin benzoate is a derivative of avermectin, a family of macrocyclic lactone compounds often used as the primary active ingredient in insecticides targeting parasites. The U.S. Environmental Protection Agency (EPA) considers emamectin benzoate a restricted-use pesticide that is toxic to fish, mammals, and aquatic organisms. Avermectins act as poisons to the nervous system of target pests, stimulating the gamma-aminobutyric acid (GABA) system (a chemical “transmitter” produced […]
Posted in Aquaculture, azamethiphos, Bakkafrost, emamectin, Mowi, Pesticide Regulation, Resistance, Scottish Sea Farms, Water | No Comments »
06
May
(Beyond Pesticides, May 6, 2022) A December 2021 report commissioned by the trade group Salmon Scotland concludes that the use of pesticide products by the nation’s salmon farms represents potential risk to “wild” swimmers (those who swim in open ocean waters). The report’s primary finding is that the use of insecticide products containing azamethiphos (an organophosphate), deltamethrin, and hydrogen peroxide to control sea lice in farmed fish contaminates sea water and, thus, threatens swimmers in the areas around the farms. Beyond Pesticides has reported on pesticide use in aquaculture, and most recently, on developing resistance — in the parasitic lice (Lepeophtheirus salmonis) that endanger both wild and farmed fish populations in the North Atlantic — to some of the chemical treatments used by aquaculturists to combat the parasite. The intense exploitation of wild fish and other marine creatures for human food (and as an ingredient in animal feeds) has caused, in recent decades, depletion of fish and seafood stocks across the world. The aquaculture industry — in which various aquatic species (fish, shellfish, and some plants) are bred, raised, and harvested in the open ocean — has grown rapidly as a response. Since the 1960s, the farming of salmon in the […]
Posted in azamethiphos, farmed fish, fish, Uncategorized | No Comments »
17
Apr
(Beyond Pesticides, April 17, 2020) As the novel coronavirus pandemic upends much of human activity, some governments are acting to loosen environmental regulations — purportedly, in the interests of public health in the face of Covid-19 threats, and/or in deference to economic concerns of certain industrial sectors. There has been little analysis, to date, of what the “on the ground” impacts of these relaxed rules may be, but news out of Scotland illustrates some kinds of concerns critics and advocates have about such loosening of regulations. The Scottish Environment Protection Agency (SEPA) has issued new, temporary rules that allow some salmon farms both to ignore newly established limits on the amount of emamectin, an insecticide used to control sea lice that plague the salmon, and to boost use of azamethiphos, another insecticide used against the lice, beyond previous 24-hour limits. SEPA says the relaxed rules will endure only as long as the Covid-19 “lockdown” remains in place (perhaps the end of June), and apply only to new or expanding enterprises, which to date total approximately 14 of the country’s 200+ salmon farms. The farmed salmon industry represents a huge domestic and export commodity worth approximately $2.5 billion annually. In addition […]
Posted in azamethiphos, emamectin, fish, International, Uncategorized | 1 Comment »
