Main Title |
Eutrophication Management and Ecotoxicology [electronic resource] / |
Type |
EBOOK |
Author |
Scholten, Martin C. Th.
|
Other Authors |
|
Publisher |
Springer Berlin Heidelberg, |
Year Published |
2005 |
Call Number |
GE300-350 |
ISBN |
9783540266716 |
Subjects |
Environmental sciences ;
Environmental management ;
Ecology
|
Internet Access |
|
Collation |
V, 122 p. 75 illus. online resource. |
Notes |
Due to license restrictions, this resource is available to EPA employees and authorized contractors only |
Contents Notes |
Eutrophication and the Ecosystem -- Daphnid Grazing Ecology -- Toxic Reduction of Daphnid Grazing Effectiveness -- Field Observations of Daphnid Grazing -- New Perspectives for Eutrophication Management. Eutrophication of surface waters is generally recognised as a matter for envir- mental concern. Eutrophication is characterised by increased algal growth, with an increased incidence of toxic cyanobacteria blooms and a decrease in the ab- dance of species. Some of the manifest problems brought about by prolific algal biomass include: turbid waters; anoxic conditions; bad smell and chironomid and Culex midge plagues (Vollenweider 1990; Moss et al. 1996a; Carpenter et al. 1998). Such - trophication problems ("eutrophication" sensu lato) are generally considered to be the consequence of enhanced nutrient loadings ("eutrophication" sensu stricto) (Likens 1972; Vollenweider 1990; Reynolds 1992; Moss et al. 1996a; Carpenter et al. 1998). Therefore, the management of eutrophicated water bodies is usually primarily focused on the reduction of nutrient loading, supported by a policy of reduced environmental releases of phosphorus from laundry detergents, sewage and agriculture. However, it became apparent over the past decade, that reduced grazing of - gae by daphnids can be a crucial factor determining whether or not nutrient - richment will lead to eutrophication problems (Moss et al. 1991; Moss et al. 1996b; Reynolds 1994). Biomanipulation of eutrophicated shallow water bodies, thereby improving ecological conditions for daphnids, became a regular tool - plied in eutrophication management practice (Benndorf 1990; McQueen 1998; Harper et al. 1999). Biomanipulation is mainly focussed on the improvement of biological con- tions leading to a higher survival rate for daphnids as part of the aquatic foodweb. |
Place Published |
Berlin, Heidelberg |
Corporate Au Added Ent |
SpringerLink (Online service) |
Title Ser Add Ent |
Environmental Science, |
Host Item Entry |
Springer eBooks |
PUB Date Free Form |
2005 |
Series Title Untraced |
Environmental Science, |
BIB Level |
m |
Medium |
computer |
Content |
text |
Carrier |
online resource |
Cataloging Source |
OCLC/T |
OCLC Time Stamp |
20140517221428 |
Language |
eng |
Origin |
SPRINGER |
Type |
EBOOK |
OCLC Rec Leader |
03541nam a22004935i 45 |