Which slow-maturing fish is listed as a sustainability concern due to slow maturity and absorption of environmental contaminants like PCBs?
Answer
Eel
Eel is specifically flagged in discussions concerning sustainability and ecological impact, despite potential freezing mitigation for parasites. The issue is twofold: Eels are slow to mature, meaning their populations recover slowly from fishing pressure. More importantly, due to their feeding habits and slow growth, they are prone to accumulating environmental contaminants, notably Polychlorinated Biphenyls (PCBs), within their tissues. This makes them a questionable choice for any conscientious eater, regardless of intended preparation style, placing them on avoidance lists based on ecological and chemical accumulation factors.
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