Eutrophication science: where do we go from here?

Smith, Val H.; Schindler, D. W.

doi:10.1016/j.tree.2008.11.009

Cited by 1,776 publications

(1,080 citation statements)

References 49 publications

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“…Any interbasin water transfer system can result in complex physical, chemical, hydrological and biological implications for the receiving system (Davies et al, 1992). Eutrophication has long been recognized as the primary water quality issue for most of the freshwater and coastal marine ecosystems in the world (Smith and Schindler, 2009). The primary reason for algal bloom is an excess of nutrients, especially nitrogen (N) and phosphorus (P) (Diersing, 2009).…”

Section: Introductionmentioning

confidence: 99%

The potential impact of an inter-basin water transfer project on nutrients (nitrogen and phosphorous) and chlorophyll a of the receiving water system

Zeng

Qin

2015

Science of The Total Environment

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Section: Introductionmentioning

confidence: 99%

The potential impact of an inter-basin water transfer project on nutrients (nitrogen and phosphorous) and chlorophyll a of the receiving water system

Zeng

Qin

2015

Science of The Total Environment

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“…Cultural eutrophication resulting from enhanced anthropogenic nutrient inputs is the greatest stressor affecting freshwater ecosystems (Smith and Schindler 2009;Baulch 2013), especially for lakes with short residence times. Lakes are an important component of natural ecosystems in China, and play crucial roles in regulating floods, supplying drinking water, preserving biodiversity, and providing a freshwater fishery for food (Wang and Dou 1998).…”

Section: Introductionmentioning

confidence: 99%

Evaluating anthropogenic N inputs to diverse lake basins: A case study of three Chinese lakes

Gao

Swaney

Hong

et al. 2015

Ambio

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The environmental degradation of lakes in China has become increasingly serious over the last 30 years and eutrophication resulting from enhanced nutrient inputs is considered a top threat. In this study, a quasi-mass balance method, net anthropogenic N inputs (NANI), was introduced to assess the human influence on N input into three typical Chinese lake basins. The resultant NANI exceeded 10 000 kg N km -2 year -1 for all three basins, and mineral fertilizers were generally the largest sources. However, rapid urbanization and shrinking agricultural production capability may significantly increase N inputs from food and feed imports. Higher percentages of NANI were observed to be exported at urban river outlets, suggesting the acceleration of NANI transfer to rivers by urbanization. Over the last decade, the N inputs have declined in the basins dominated by the fertilizer use but have increased in the basins dominated by the food and feed import. In the foreseeable future, urban areas may arise as new hotspots for nitrogen in China while fertilizer use may decline in importance in areas of high population density.

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“…1999). This additional biomass in primary productivity works its way up the food chain, ultimately leading to increased consumer (including fish) biomass (Hadwen and Bunn 2004; Smith and Schindler 2009). It is possible that this explains the increased total fish community capacity detected here.…”

Section: Discussionmentioning

confidence: 99%

From species to communities: the signature of recreational use on a tropical river ecosystem

Deacon

Shimadzu

Dornelas

et al. 2015

Ecology and Evolution

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Disturbance can impact natural communities in multiple ways. However, there has been a tendency to focus on single indicators of change when examining the effects of disturbance. This is problematic as classical diversity measures, such as Shannon and Simpson indices, do not always detect the effects of disturbance. Here, we instead take a multilevel, hierarchical approach, looking for signatures of disturbance in the capacity and diversity of the community, and also in allocation and demography at the population level. Using recreational use as an example of disturbance, and the freshwater streams of Trinidad as a model ecosystem, we repeatedly sampled the fish communities and physical parameters of eight pairs of recreational and nonrecreational sites every 3 months over a 28‐month period. We also chose the Trinidadian guppy (Poecilia reticulata) as the subject of our population‐level analyses. Regression tree analysis, together with analysis of deviance, revealed that community capacity and community species richness were greater at sites with higher levels of recreational use. Interestingly, measures of community diversity that took into account the proportional abundance of each species were not significantly associated with recreational use. Neither did we find any direct association between recreational use and proportion of guppy biomass in the community. However, population‐level differences were detected in the guppy: Sex ratio was significantly more female‐biased at more disturbed sites. Our findings emphasize the importance of considering multiple levels when asking how disturbance impacts a community. We advocate the use of a multilevel approach when monitoring the effects of disturbance, and highlight gaps in our knowledge when it comes to interpreting these effects.

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Eutrophication science: where do we go from here?

Cited by 1,776 publications

References 49 publications

The potential impact of an inter-basin water transfer project on nutrients (nitrogen and phosphorous) and chlorophyll a of the receiving water system

The potential impact of an inter-basin water transfer project on nutrients (nitrogen and phosphorous) and chlorophyll a of the receiving water system

Evaluating anthropogenic N inputs to diverse lake basins: A case study of three Chinese lakes

From species to communities: the signature of recreational use on a tropical river ecosystem

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