Experimental effects of large-bodied Daphnia, fish and zebra mussels on cladoceran community and size structure | Научно-инновационный портал СФУ

Experimental effects of large-bodied Daphnia, fish and zebra mussels on cladoceran community and size structure

Тип публикации: статья из журнала

Год издания: 2015

Идентификатор DOI: 10.1093/plankt/fbv022

Ключевые слова: alien species, large- and small-bodied cladocerans, invasion mechanisms, PUFA, C:N:P ratios, alga, aquatic community, bivalve, crustacean, experimental study, fecundity, fish, invasive species, nonmetal, size structure, species diversity, taxonomy, algae, Cyanobacteria, Daphnia, Daphnia magna, Dreissena polymorpha

Аннотация: Understanding the factors that regulate the abundance, size structure and community structure of cladocerans is an important goal of aquatic ecologists. While both top-down and bottom-up factors help to structure cladoceran communities, there may be interactions between these factors. We conducted a mesocosm study to determine how alien large-bodied Daphnia, zebra mussels and fish affected cladoceran community and size structure. We found that large-bodied Daphnia reduced algal resources and the fecundity of smaller bodied cladocerans. Fish removed the large-bodied Daphnia magna from the mesocosms and shifted the cladoceran community to a smaller body size. Fish also appeared to promote increases in cladoceran diversity through the coexistence of several smaller bodied taxa. In contrast, zebra mussels increased cyanobacteria and helped to promote the success of the alien Daphnia, but reduced the biomass of small-bodied cladocerans. Zebra mussels reduced the carbon (C):phosphorus (P) ratio of the phytoplankton in the mesocosms which may have favored the relatively P-limited Daphnia. Combined, our results highlight the complex interactions of multiple factors that help to regulate cladoceran community and size structure.

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Издание

Журнал: JOURNAL OF PLANKTON RESEARCH

Выпуск журнала: Vol. 37, Is. 3

Номера страниц: 611-625

ISSN журнала: 01427873

Место издания: OXFORD

Издатель: OXFORD UNIV PRESS

Авторы

  • Feniova I. (A.N. Severtsov Institute of Ecology and Evolution, Russian Academy of Sciences)
  • Dawidowicz P. (Institute of Zoology, Department of Hydrobiology, University of Warsaw)
  • Gladyshev M.I. (Siberian Federal University)
  • Sushchik N.N. (Siberian Federal University)
  • Kostrzewska-Szlakowska I. (Nencki Institute of Experimental Biology, Polish Academy of Sciences)
  • Rzepecki M. (Nencki Institute of Experimental Biology, Polish Academy of Sciences)
  • Razlutskij V. (Scientific and Practical Center for Bioresources, National Academy of Sciences of Belarus)
  • Majsak N. (Scientific and Practical Center for Bioresources, National Academy of Sciences of Belarus)
  • Dzialowski A.R. (Department of Integrative Biology, Oklahoma State University)

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