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Spatial distribution of modern dinoflagellate cysts in polluted estuarine sediments from Buzzards Bay (Massachusetts, USA) embayments
- Source :
- Marine Ecology Progress Series. 292:23-40
- Publication Year :
- 2005
- Publisher :
- Inter-Research Science Center, 2005.
-
Abstract
- Analysis of the spatial distribution of the dinoflagellate cyst assemblages in 19 surface sediment samples collected from 3 Buzzards Bay (Massachusetts, USA) embayments revealed the potential applicability of dinoflagellate cysts as biological indicators of environmental conditions in estuarine systems. Sites with the highest levels of toxic pollution and hypertrophic conditions are characterized by the lowest dinoflagellate cyst species-richness and concentrations. Among the abi- otic factors influencing the distribution of dinoflagellate cysts, nutrients and toxic pollution are the major controls, as in these embayments salinity and temperature variability is low. Principal compo- nent analysis, based on the proportions of cyst taxa, indicated that cyst assemblages gradually change when moving away from the sources of nutrient pollution, sewage outfalls in particular.
- Subjects :
- Pollution
geography
geography.geographical_feature_category
Ecology
biology
media_common.quotation_subject
Dinoflagellate
Sediment
Estuary
Aquatic Science
Spatial distribution
biology.organism_classification
Oceanography
Nutrient pollution
Eutrophication
Bay
Ecology, Evolution, Behavior and Systematics
media_common
Subjects
Details
- ISSN :
- 16161599 and 01718630
- Volume :
- 292
- Database :
- OpenAIRE
- Journal :
- Marine Ecology Progress Series
- Accession number :
- edsair.doi...........d670ded3397647e4a816dd8cec327ded