Titlebook: Eutrophication in Planktonic Ecosystems: Food Web Dynamics and Elemental Cycling; Timo Tamminen,H. Kuosa Book 1998 Springer Science+Busine

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Relations between planktivorous fish abundance, zooplankton and phytoplankton in three lakes of difth depressed crustacean zooplankton biomass, reduced role of calanoids and cladocerans, a low proportion of larger cladocerans (length > 0.5 mm), and a high chlorophyll level. In the lakes Littoistenj?rvi and K?yli?nj?rvi, zooplankton was dependent on both fish and phytoplankton: in spite of dense f

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On the production, elemental composition (C, N, P) and distribution of photosynthetic organic matteomic ratios of C/N, C/P and N/P, derived from the regressions of POM data, ranged between 7.5 and 9.6, 109 and 165, and 11.2 and 16.6, respectively. In the suboxic/anoxic interface, the elemental ratios change substantially due to an accumulation of PP cohering to Fe and Mn oxides. The chemocline bo

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The use of spectral fluorescence methods to detect changes in the phytoplankton community,bacteria relative to total biomass and the lower abundance of small algae. The phycoerythrin fluorescence signal was obviously due to the large cyanobacteria. The basin-wide shift in the shape of chlorophyll . excitation spectra was caused by the variable proportions of differently pigmented cyanoba

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,Biochemical composition of particulate organic matter and bacterial dynamics at the sediment—water le compounds (69.9% of POC). POM temporal patterns were controlled by current speed at the sediment—water interface that resuspended only small particles largely colonised by bacteria after an intensive process of fractionation and aging. In the seagrass system, the POM appears to be dominated by ba

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Eutrophication in Planktonic Ecosystems: Food Web Dynamics and Elemental Cycling