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Sediment trap samples were harvested bimonthly from 1998 to 2000 and examined to better understand the species composition and seasonal variation of dinoflagellate cyst flux in Omura Bay in Japan. Samples’ living cyst flux clearly showed seasonal variation with the higher flux number between...
A simple system of parametrically forced ordinary differential equations is used to model autumn phytoplankton blooms in temperate oceans by a mechanism involving deepening of the upper mixed layer. Blooms are triggered provided the increase in nutrients in the mixed layer is rapid within the...
This work analyses the attributes of the phytoplankton community (species richness, biovolume, diversity, equitability, abundance, dominance and size structure) associated with some physical, chemical and climatic variables of floodplain lakes of the Araguaia River, central Brazil, in the rainy...
A film-based holography system was used in conjunction with instrumentation that detected bioluminescent thin layers to record the spatial distribution of zooplankton and their prey in the Gulf of Maine, USA. The holocamera and instruments were mounted on the Johnson Sea Link (JSL) in a setup...
To estimate the predation effect of the predominant ctenophore Pleurobrachia bachei on the small-copepod community in the upwelling area off Mejillones (23°S), northern Chile, a series of oceanographic cruises and predation experiments were conducted in the austral springs 2000, 2001 and 2002....
We studied the impact of various metazooplanktonic predators (two calanoid copepods and barnacle larvae) on microbial plankton isolated from the Senegal River Estuary. Experiments performed in microcosms were based on size-class fractionation (3, 12, 20 and 60 µm size classes) of the microbial...
Zooplankton tolerant to ultraviolet radiation (UVR) could be indirectly affected by UVR through interactions with UV-sensitive species in the same ecosystem. In Lake Giles, Pennsylvania, USA, the calanoid copepod Leptodiaptomus minutus is more UVR tolerant than the cohabiting species Daphnia...
Analysis of the demographic structure of Calanus species in the North Atlantic presents particular difficulties due to the overlapping spatial distributions of four main congeneric species ( Calanus finmarchicus , Calanus helgolandicus , Calanus glacialis and Calanus hyperboreus ). These species...
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