Affiliation:
1. School of Biological Sciences, University of PlymouthDrake Circus, Plymouth PL4 8AA, UK
2. Sir Alister Hardy Foundation for Ocean Science, The Laboratory, Citadel HillThe Hoe, Plymouth PL1 2PB, UK
Abstract
We report unprecedented numbers of juvenile snake pipefish,
Entelurus aequoreus
, in continuous plankton records of the Northeastern Atlantic since 2002. Increased sea surface temperatures (SSTs) in the Northern Hemisphere, linked to global warming, are a likely cause. Analysis of a long-term time-series of SST data in the Northeastern Atlantic shows a rise in winter, spring and summer sea temperatures (January–September), when the eggs of
E. aqueoreus
, which are brooded by the male, are developing and the larvae are growing in plankton. From what is known of the reproductive biology of closely related species, we suggest that the increased abundance of larval and juvenile
E. aequoreus
in the plankton as far west as the Mid-Atlantic Ridge may reflect the impact of temperature on abundance, through its effects on the operational sex ratio and potential reproductive rate, the onset of the breeding season and juvenile survival in this sex role reversed fish.
Subject
General Agricultural and Biological Sciences,Agricultural and Biological Sciences (miscellaneous)
Cited by
56 articles.
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