Funding for this research was provided by:
National Oceanic and Atmospheric Administration (NA14OAR4320106)
Received: 20 October 2016
Accepted: 19 December 2016
First Online: 18 January 2017
Compliance with ethical standards
: All authors contributed to the design of the study, discussion of the results, and writing of the manuscript. G.A.V. set up the model experiments. K.v.d.W. performed the analyses.
: The authors declare that they have no conflict of interests.