GoKawiil
Tech News
New research led by USDA scientists shows that farmed salmon now contain significantly lower levels of heart-healthy Omega-3 fatty acids than in the past. The decline stems from producers replacing wild fish-based feed, once heavily depleted from overfishing, with land-based ingredients like soy and canola oil. The findings echo a similar 2016 study that flagged the same feed-driven nutritional drop.
Researchers combined 2019 reconstructed marine fisheries landings from Sea Around Us with FAO inland fisheries and aquaculture data to measure how much invertebrates such as mollusks, crustaceans, sea cucumbers and jellyfish contribute to global seafood production. They standardized species names using the ASFIS taxonomic system and checked their findings across multiple years from 2014 to 2019 to confirm consistency. The analysis treated marine and inland fisheries separately due to gaps in reconstruction data for freshwater systems.