Autecology of Limnomysis benedeni Czerniavsky, 1882 (Crustacea: Mysida) in Lake Constance, Southwestern Germany

Gergs, René; Hanselmann, Almut J.; Eisele, Isabelle; Rothhaupt, Karl-Otto

Autecology of Limnomysis benedeni Czerniavsky, 1882 (Crustacea: Mysida) in Lake Constance, Southwestern Germany

Dateien

2008_Gergs_etal_Autecology_of_Limnomysis_benedeni.pdfGröße: 4.73 MBDownloads: 566

Datum

2008

Autor:innen

Gergs, René

Hanselmann, Almut J.

Eisele, Isabelle

Rothhaupt, Karl-Otto

Open Access-Veröffentlichung

Open Access Green

Sammlungen

Biologie

Publikationstyp

Zeitschriftenartikel

Publikationsstatus

Published

Erschienen in

Limnologica. 2008, 38(2), pp. 139-146. ISSN 0075-9511. Available under: doi: 10.1016/j.limno.2007.12.002

Zusammenfassung

The Ponto-Caspian mysid Limnomysis benedeni was first recorded in Lake Constance in summer 2006, and a stable population developed at the site of discovery. Although this mysid is common in the Rhine and Danube rivers, little is known about its ecology and impact in systems of invasion. We investigated the autecology of L. benedeni in habitat-choice and food experiments. In the habitat-choice experiments, highly structured habitats, i.e., stones covered with zebra mussels (Dreissena polymorpha), macrophytes, and especially stonewort, were strongly preferred. In food experiments, L. benedeni fed mostly on food sources with a small particle size, e.g., biofilm on leaf litter, biodeposited material of zebra mussels, epilithon, and phytoplankton. We also compared the L. benedeni population data from Lake Constance with that from rivers. In Lake Constance, female L. benedeni were nearly 30% larger and carried more than three times more eggs in spring (9.4±0.6 mm and 28.4±5.7 eggs) than in summer (6.7±0.8mm and 8.7±2.9 eggs). The mysids present in spring might be the generation that over-wintered; in summer, this generation was probably replaced by a new generation of smaller individuals. The large brood size and the detritivorous feeding strategy might allow L. benedeni to colonize Lake Constance rapidly.

Fachgebiet (DDC)

570 Biowissenschaften, Biologie

Schlagwörter

Mysid, Habitat choice, Food preference, Life cycle, Sex ratio, Invasive species, Laboratory experiments

Zitieren

ISO 690

GERGS, René, Almut J. HANSELMANN, Isabelle EISELE, Karl-Otto ROTHHAUPT, 2008. Autecology of Limnomysis benedeni Czerniavsky, 1882 (Crustacea: Mysida) in Lake Constance, Southwestern Germany. In: Limnologica. 2008, 38(2), pp. 139-146. ISSN 0075-9511. Available under: doi: 10.1016/j.limno.2007.12.002

BibTex

@article{Gergs2008Autec-6813,
  year={2008},
  doi={10.1016/j.limno.2007.12.002},
  title={Autecology of Limnomysis benedeni Czerniavsky, 1882 (Crustacea: Mysida) in Lake Constance, Southwestern Germany},
  number={2},
  volume={38},
  issn={0075-9511},
  journal={Limnologica},
  pages={139--146},
  author={Gergs, René and Hanselmann, Almut J. and Eisele, Isabelle and Rothhaupt, Karl-Otto}
}

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Universitätsbibliographie

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