Grazer-induced chain lenght plasticity reduces grazing risk in a marine diatom

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Grazer-induced chain lenght plasticity reduces grazing risk in a marine diatom. / Bergkvist, Johanna; Thor, Peter; Jakobsen, Hans Henrik; Wängberg, Sten-Åke; Selander, Erik.

In: Limnology and Oceanography, Vol. 57, No. 1, 2012, p. 318-324.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

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Author

Bergkvist, Johanna; Thor, Peter; Jakobsen, Hans Henrik; Wängberg, Sten-Åke; Selander, Erik / Grazer-induced chain lenght plasticity reduces grazing risk in a marine diatom.

In: Limnology and Oceanography, Vol. 57, No. 1, 2012, p. 318-324.

Publication: Research - peer-reviewJournal article – Annual report year: 2012

Bibtex

@article{2d9a8a3d17d044348845a7022e076bc3,
title = "Grazer-induced chain lenght plasticity reduces grazing risk in a marine diatom",
publisher = "American Society of Limnology and Oceanography, Inc.",
author = "Johanna Bergkvist and Peter Thor and Jakobsen, {Hans Henrik} and Sten-Åke Wängberg and Erik Selander",
year = "2012",
doi = "10.4319/lo.2012.57.1.0318",
volume = "57",
number = "1",
pages = "318--324",
journal = "Limnology and Oceanography",
issn = "0024-3590",

}

RIS

TY - JOUR

T1 - Grazer-induced chain lenght plasticity reduces grazing risk in a marine diatom

A1 - Bergkvist,Johanna

A1 - Thor,Peter

A1 - Jakobsen,Hans Henrik

A1 - Wängberg,Sten-Åke

A1 - Selander,Erik

AU - Bergkvist,Johanna

AU - Thor,Peter

AU - Jakobsen,Hans Henrik

AU - Wängberg,Sten-Åke

AU - Selander,Erik

PB - American Society of Limnology and Oceanography, Inc.

PY - 2012

Y1 - 2012

N2 - We show that Skeletonema marinoi suppresses chain formation in response to copepod cues. The presence of three different copepod species (Acartia tonsa, Centropages hamatus, or Temora longicornis) significantly reduced chain length. Furthermore, chain length was significantly reduced when S. marinoi was exposed to chemical cues from caged A. tonsa without physical contact with the responding cells. The reductions in chain length significantly reduced copepod grazing; grazing rates on chains (four cells or more) were several times higher compared to that of single cells. This suggests that chain length plasticity is a means for S. marinoi to reduce copepod grazing. In contrast, chain length was not suppressed in cultures exposed to the microzooplankton grazer Gyrodinium dominans. Size-selective predation may have played a key role in the evolution of chain formation and chain length plasticity in diatoms

AB - We show that Skeletonema marinoi suppresses chain formation in response to copepod cues. The presence of three different copepod species (Acartia tonsa, Centropages hamatus, or Temora longicornis) significantly reduced chain length. Furthermore, chain length was significantly reduced when S. marinoi was exposed to chemical cues from caged A. tonsa without physical contact with the responding cells. The reductions in chain length significantly reduced copepod grazing; grazing rates on chains (four cells or more) were several times higher compared to that of single cells. This suggests that chain length plasticity is a means for S. marinoi to reduce copepod grazing. In contrast, chain length was not suppressed in cultures exposed to the microzooplankton grazer Gyrodinium dominans. Size-selective predation may have played a key role in the evolution of chain formation and chain length plasticity in diatoms

U2 - 10.4319/lo.2012.57.1.0318

DO - 10.4319/lo.2012.57.1.0318

JO - Limnology and Oceanography

JF - Limnology and Oceanography

SN - 0024-3590

IS - 1

VL - 57

SP - 318

EP - 324

ER -