Carassius gibelio in Greece: the dominant naturalised invader of freshwaters

Carassius gibelio in Greece: the dominant naturalised invader of freshwaters Ichthyofauna in the Hellenic freshwaters is quite diverse consisted of 161 species (including 28 non-natives), out of the 546 native species in Pan-European level. However, the status of many aquatic ecosystems is currently degraded as a result of a variety of anthropogenic impacts. This has direct reflection on the conservation status of the indigenous and native fish species whose populations are in many cases declining in favor of the invasive ones. Prussian carp (Carassius gibelio) is probably the most dominant invasive species and currently is considered as naturalized in about 26 lake and river basins. Its successful adaptation and proliferation is mainly attributed to its dual reproductive mode (allogynogenetic and gonochoristic), the opportunistic-omnivorous feeding habits and the ability to withstand and flourish in adverse ecological conditions. Accordingly, it exerts competitive, as well as destructive effects upon the indigenous fish species (sperm parasitism, antagonism for food, spawning grounds and spawning substrates) and therefore, efforts are needed to sustain a relative balance of the populations. This review aims to critically discuss the status of C. gibelio in Greece, the intrinsic causes of establishment and the observed impacts on ecosystems. Finally, reasonable actions are proposed related to exploitation of C. gibelio stocks and a path model for the protection of native fish species and their ecosystems. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Reviews in Fish Biology and Fisheries Springer Journals

Carassius gibelio in Greece: the dominant naturalised invader of freshwaters

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Publisher
Springer Journals
Copyright
Copyright © 2011 by Springer Science+Business Media B.V.
Subject
Life Sciences; Zoology; Freshwater & Marine Ecology
ISSN
0960-3166
eISSN
1573-5184
D.O.I.
10.1007/s11160-011-9216-8
Publisher site
See Article on Publisher Site

Abstract

Ichthyofauna in the Hellenic freshwaters is quite diverse consisted of 161 species (including 28 non-natives), out of the 546 native species in Pan-European level. However, the status of many aquatic ecosystems is currently degraded as a result of a variety of anthropogenic impacts. This has direct reflection on the conservation status of the indigenous and native fish species whose populations are in many cases declining in favor of the invasive ones. Prussian carp (Carassius gibelio) is probably the most dominant invasive species and currently is considered as naturalized in about 26 lake and river basins. Its successful adaptation and proliferation is mainly attributed to its dual reproductive mode (allogynogenetic and gonochoristic), the opportunistic-omnivorous feeding habits and the ability to withstand and flourish in adverse ecological conditions. Accordingly, it exerts competitive, as well as destructive effects upon the indigenous fish species (sperm parasitism, antagonism for food, spawning grounds and spawning substrates) and therefore, efforts are needed to sustain a relative balance of the populations. This review aims to critically discuss the status of C. gibelio in Greece, the intrinsic causes of establishment and the observed impacts on ecosystems. Finally, reasonable actions are proposed related to exploitation of C. gibelio stocks and a path model for the protection of native fish species and their ecosystems.

Journal

Reviews in Fish Biology and FisheriesSpringer Journals

Published: May 5, 2011

References

  • Calibration of FISK, an invasiveness screening tool for nonnative freshwater fishes
    Copp, GH; Vilizzi, L; Mumford, J; Fenwick, GV; Godard, MJ; Gozlan, RE
  • Climate change impacts on structure and diversity of fish communities in rivers
    Daufresne, M; Boët, P
  • Towards understanding the impacts of the pet food industry on world fish and seafood supplies
    Silva, S; Turchini, G
  • Sex determination and sex differentiation in fish: an overview of genetic, physiological and environmental influences
    Devlin, RH; Nagahama, Y
  • Endangered freshwater fishes of Greece
    Economidis, P
  • Introduced and translocated fish species in the inland waters of Greece
    Economidis, PS; Dimitriou, E; Pagoni, R; Michaloudi, E; Natsis, L
  • Effects of exotic and translocated fish species in the inland waters of Turkey
    Innal, D; Erk’akan, F
  • Typology, classification and management issues of Greek lakes: implication of the water framework directive (2000/60/EC)
    Kagalou, I; Leonardos, I

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