Conservation Physiology · 8 authors, 11 centres
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In a laboratory experiment exposing Downs herring larvae to combined ocean warming, acidification, and reduced food quality, no direct lethal effects were observed, but larvae developed smaller size-at-stage under warming and acidification, associated with induction of stress-response genes.
No direct lethal effects were observed from the combined environmental stressors. However, larvae reared under warming and acidification scenarios (OWA and OWA+) exhibited smaller size-at-stage compared to controls. This reduction in size was associated with molecular-level physiological disturbances, specifically the induction of stress-response genes. The effects of the abiotic environmental treatments were most pronounced during the transition between developmental stages 2 and 3, previously identified as a potential critical period for Downs herring larvae.
