Spatial distribution of modern dinoflagellate cysts in polluted estuarine sediments from Buzzards Bay (Massachusetts, USA) embayments

被引：112
作者：
Pospelova, V
Chmura, GL
Boothman, WS
Latimer, JS
机构：
[1] McGill Univ, Dept Geog, Montreal, PQ H3A 2K7, Canada
[2] McGill Univ, Ctr Climate & Global Change Res, Montreal, PQ H3A 2K7, Canada
[3] Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC V8W 3P6, Canada
[4] US Environm Protect Agcy, NHEERL, Off Res & Dev, Atlantic Ecol Div, Narragansett, RI 02882 USA
来源：
MARINE ECOLOGY PROGRESS SERIES | 2005年 / 292卷
关键词：
dinoflagellate cyst; Eutrophication; heavy metals; sewage; wastewater treatment plant; PCBs; Apponagansett Bay; New Bedford Harbor;
D O I：
10.3354/meps292023
中图分类号：
Q14 [生态学（生物生态学）];
学科分类号：
071012 ; 0713 ;
摘要：
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 abiotic 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 component 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.
引用
收藏
页码：23 / 40
页数：18
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