Academic Journals Database
Disseminating quality controlled scientific knowledge

Factors describing the distribution of the zooplankton community in the Gulf of Finland in the context of interactions between native and introduced predatory cladocerans

ADD TO MY LIST
 
Author(s): Arno Põllumäe | Jonne Kotta

Journal: Oceanologia
ISSN 0078-3234

Volume: 49;
Issue: 2;
Start page: 277;
Date: 2007;
Original page

Keywords: Baltic | Mesozooplankton | Non-indigenous | Food web | Predation

ABSTRACT
Mesozooplankton communities were studied monthlyat six sites in the Gulf of Finland during six ice-free seasons.The abundances of different zooplankton taxa were related totemperature, salinity, eutrophication level (total nitrogen andphosphorus), phytoplankton Chl a and density of predatorycladocerans, including the non-indigenous Cercopagis pengoiand the native Leptodora kindtii. The results indicated thatvariability in the zooplankton communities was correlated notonly with predation by mesozooplankton but also with bottom-upeffects. Predation by the non-indigenous C. pengoi may significantlyaffect the dynamics of Cladocera and Rotatoria in the Gulf ofFinland during the summer season.
     Coupon Page 40% off FileCure