Volta

The effects of pyridine hydrochloride on sublethal behavioural endpoints in the common shore crab, Carcinus maenas

Pyridine is a by-product of several industrial processes and is traditionally extracted from coal tar. In October 2021, a mass stranding of dead, twitching and moribund crustaceans, including edible crabs and lobsters, were observed off the northeast coast of England leading to speculation that pyridine released from dredging was the causal agent. This led to campaign groups asking for a cessation of dredging activity in the Tees estuary until the matter had been resolved. Over the past few years, considerable debate and scepticism have remained among the UK press and the public regarding the potential role of pyridine in this event. To determine the effects of pyridine on juvenile common shore crabs (Carcinus maenus) we conducted a four-day static renewal …

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