California sea lion population recovery from domoic acid toxicosis events requires long-term welfare monitoring of neurologically affected individuals and assessment of population-level impacts.
Sea lion population recovery from repeated domoic acid events requires understanding not just acute mortality but the long-term welfare of survivors with neurological damage. Animals released after rehabilitation may appear physically recovered while carrying hippocampal lesions that impair the spatial memory critical for efficient foraging across large ocean territories. These animals may face chronic nutritional stress that is invisible to stranding data unless individuals are tracked over years. The population welfare perspective recognizes that repeated bloom events affecting the same geographic areas create cumulative welfare burdens on sea lion communities whose recovery capacity is finite.