Aquaculture may be one of the culprits of the decline in wild Atlantic salmon populations
A new study is underway by the Atlantic Salmon Trust (AST) to determine why wild Atlantic salmon numbers are declining. The study intends to produce the most thorough investigation yet into the threats faced by the species. Some early research indicates some likely culprits such as, climate change and aquaculture (seafood farming)—noting sea lice, disease and pollution from these environments.
Salmon are a key indicator for the health of our oceans, as they are quite sensitive to environmental changes. The concerning drop in wild salmon numbers, which were once prolific has led to the new study, Suspects Framework, to evolve. Three decades ago, one in four wild salmon would find their way back to the rivers in which they were born, while today only one in twenty salmon are returning. The fish were so plentiful at one time they were considered a staple diet in the UK and Europe.
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