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Ecological consequences of biological invasions: three invertebrate case studies in the north-eastern Baltic Sea
Kotta, J.; Kotta, I.; Simm, M.; Lankov, A.; Lauringson, V.; Põllumäe, A.; Ojaveer, H. (2006). Ecological consequences of biological invasions: three invertebrate case studies in the north-eastern Baltic Sea. Helgol. Mar. Res. 60(2): 106-112
In: Helgoland Marine Research. Springer: Berlin; Heidelberg. ISSN 1438-387X
Peer reviewed article  

Available in  Authors | Dataset 
    VLIZ: Open Repository 100514 [ MOA ]

Keywords
    Benthos; Collisions; Ecology; Interspecific relationships; Introduced species; Pelagic environment; ANE, Baltic [Marine Regions]; Marine

Authors  Top | Dataset 
  • Kotta, J., more
  • Kotta, I.
  • Simm, M.
  • Lankov, A.
  • Lauringson, V.
  • Põllumäe, A.
  • Ojaveer, H., more

Abstract
    Population dynamics and ecological impacts of the cirriped Balanus improvisus, the polychaete Marenzelleria neglecta and the cladoceran Cercopagis pengoi were investigated in the north-eastern Baltic Sea. After an increase during the first decade of invasion, the density of M. neglecta and C. pengoi declined afterwards. The studied abiotic environmental variables did not explain the interannual variability in the seasonal cycles of M. neglecta and C. pengoi indicating that the species are at their initial phase of invasion. The population dynamics of B. improvisus was best described by water temperature. B. improvisus promoted the growth of the green alga Enteromorpha intestinalis. M. neglecta enhanced the content of sediment chlorophyll a and reduced growth and survival of the polychaete Hediste diversicolor and growth of the amphipod Monoporeia affinis. Concurrent with the invasion of C. pengoi the abundance of small-sized cladocerans declined, especially above the thermocline. C. pengoi had become an important food for nine-spined stickleback, bleak, herring and smelt.

Dataset
  • MarBEF Publication Series data, more

All data in IMIS is subject to the VLIZ privacy policy Top | Authors | Dataset 


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