Mar. Drugs 2013, 11(7), 2486-2500; doi:10.3390/md11072486
Article

Effect of Grazing-Mediated Dimethyl Sulfide (DMS) Production on the Swimming Behavior of the Copepod Calanus helgolandicus

Received: 11 April 2013; in revised form: 17 June 2013 / Accepted: 28 June 2013 / Published: 15 July 2013
(This article belongs to the Special Issue Bioactive Compounds from Marine Plankton)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: Chemical interactions play a fundamental role in the ecology of marine foodwebs. Dimethyl sulfide (DMS) is a ubiquitous marine trace gas that acts as a bioactive compound by eliciting foraging behavior in a range of marine taxa including the copepod Temora longicornis. Production of DMS can rapidly increase following microzooplankton grazing on phytoplankton. Here, we investigated whether grazing-induced DMS elicits an increase in foraging behavior in the copepod Calanus helgolandicus. We developed a semi-automated method to quantify the effect of grazing-mediated DMS on the proportion of the time budget tethered females allocate towards slow swimming, typically associated with feeding. The pooled data showed no differences in the proportion of the 25 min time budget allocated towards slow swimming between high (23.6 ± 9.74%) and low (29.1 ± 18.33%) DMS treatments. However, there was a high degree of variability between behavioral responses of individual copepods. We discuss the need for more detailed species-specific studies of individual level responses of copepods to chemical signals at different spatial scales to improve our understanding of chemical interactions between copepods and their prey.
Keywords: chemical ecology; chemical interactions; marine plankton; dimethyl sulfide (DMS); Calanus helgolandicus; copepod behavior
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MDPI and ACS Style

Breckels, M.N.; Bode, N.W.F.; Codling, E.A.; Steinke, M. Effect of Grazing-Mediated Dimethyl Sulfide (DMS) Production on the Swimming Behavior of the Copepod Calanus helgolandicus. Mar. Drugs 2013, 11, 2486-2500.

AMA Style

Breckels MN, Bode NWF, Codling EA, Steinke M. Effect of Grazing-Mediated Dimethyl Sulfide (DMS) Production on the Swimming Behavior of the Copepod Calanus helgolandicus. Marine Drugs. 2013; 11(7):2486-2500.

Chicago/Turabian Style

Breckels, Mark N.; Bode, Nikolai W.F.; Codling, Edward A.; Steinke, Michael. 2013. "Effect of Grazing-Mediated Dimethyl Sulfide (DMS) Production on the Swimming Behavior of the Copepod Calanus helgolandicus." Mar. Drugs 11, no. 7: 2486-2500.

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