An increase in snake pipefish (Entelurus aequoreus) in the northeast Atlantic: possible causes and effects

Johns, DG and Halliday, N (2007) An increase in snake pipefish (Entelurus aequoreus) in the northeast Atlantic: possible causes and effects. GLOBEC Newsletter, 13 (1). pp. 20-21.

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Abstract

Climate induced changes in the planktonic community have been reported in the North Atlantic in recent years (Beaugrand et al., 2002), and similar responses has been seen in higher trophic levels (eg fish, Brander et al., 2003). Many of these responses have been identified by the use of the Continuous Plankton Recorder (CPR), and here we discuss recent results from the survey concerning pipefish, numbers of which have increased dramatically around the UK in recent years. This has also been reported in both the scientific and popular press, and anecdotally by many divers. Pipefish are easily recognized, being vermiform with a long slender ‘snout’ and an armoured outer layer, much like an elongated seahorse. This increase has raised many questions, why has it happened and what affects will it have on the ecosystem?

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