From Gerald Legg
I was intrigued to read Michael Tennesen’s report on Humboldt squid (12 September, p 32). What must be a fear is their potential spread from the Eastern Pacific into the Caribbean Sea and the Atlantic and Indian oceans.
One voracious predator that is already having a powerful influence on coastal marine ecosystems is the lionfish Pterois volitans from the Western Pacific. It has , where reef fish have not evolved to deal with this predator, with disastrous results.
Hurstpierpoint, West Sussex, UK
