Phytoplankton pigments as ecological state indices of the Cheboksary Reservoir |
| |
Authors: | N M Mineeva N N Abramova |
| |
Institution: | 1.Institute of Inland Water Biology,Russian Academy of Sciences,Yaroslavskaya oblast,Russia;2.Nizhnii Novgorod State University,Nizhnii Novgorod,Russia |
| |
Abstract: | Data on the composition and content of plant pigments in water of the Cheboksary Reservoir collected in 1985–2005 are used
to analyze the seasonal dynamics and spatial distribution of phytoplankton at different stages of reservoir life. A trophic
burst could be distinctly seen in the reservoir in 1985, manifesting itself in exceedingly high (198 ± 41 μg/l) concentrations
of photosynthetic pigment chlorophyll. In the process of ecosystem stabilization, chlorophyll concentration significantly
dropped to vary from 8.2 ± 1.5 to 45.1 ± 21.0 μg/l in 1989–2005. The reservoir, located in a region subject to high anthropogenic
load, has acquired the features of an eutrophic water body immediately after its creation and its trophic status remains unchanged
all over its existence. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|