Exceptional abundance of the snake pipefish (Entelurus aequoreus) in the north-eastern Atlantic Ocean

Lindley, J.A. and Kirby, R.R. and Johns, D.G. and Reid, P.C. (2006) Exceptional abundance of the snake pipefish (Entelurus aequoreus) in the north-eastern Atlantic Ocean. ICES C.M. Papers, C:06. 8pp.

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Abstract

Pipefish (Syngnathidae) have occurred with unprecedented frequency in Continuous Plankton Recorder (CPR) samples to the west of the British Isles from 2003 to 2005. Identification by mtDNA sequencing established that they were snake pipefish, Entelurus aequoreus. The geographical range of the records were from the outer continental shelf of the Celtic Sea and north-west of Ireland to the mid-Atlantic Ridge between 40° and 57°N, with the greatest abundance near the shelf edge and adjacent oceanic waters south of Ireland and west of Brittany. There were records in every month from February to November but most were in late spring and summer. A proposed mechanism for the increase in abundance of the species is that recent climate change has had beneficial impacts on the reproduction of adults and the survival of larvae and juveniles.

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