Eutrophication of the Marine Environment

Ménesguen, Alain

doi:10.1002/9781119007647.ch3

Cited by 4 publications

(1 citation statement)

References 163 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…When DIP cannot meet the needs of phytoplankton, heterotrophic bacteria in the ocean supplement DIP by hydrolyzing dissolved organic phosphorus (DOP) using alkaline phosphatase (Zhang et al, 2021). With the rapid development of industry and agriculture, the use of pesticides, fertilizers, and fossil fuels has increased significantly, and a large amount of nitrogen and phosphorus nutrients have been transported to the estuaries and coasts through river flow, atmospheric deposition, and groundwater discharge, resulting in severe eutrophication (Herbeck et al, 2013;Li et al, 2014;Meńesguen, 2014;Wang et al, 2018;Zhang et al, 2019b;Zhang et al, 2020a;Peng et al, 2021). Nutrient criteria representing the enrichment status of surface waters that are minimally impacted by human development maybe defined as the threshold value that supports a particular beneficial designated use (US EPA, 1998;US EPA, 2001).…”

Section: Introductionmentioning

confidence: 99%

Categorizing numeric nutrients criteria and implications for water quality assessment in the Pearl River Estuary, China

Zhang

et al. 2022

Front. Mar. Sci.

View full text Add to dashboard Cite

Coastal eutrophication, the over-enrichment of water with nutrients, has become a global ecological problem. As coastal waters are subjected to great pressure due to anthropogenic influences and climate change, establishing numeric nutrient criteria for coastal waters has been exceedingly complex at present. To control and improve the water quality of the Pearl River Estuary (PRE), based on the data from 2015 to 2020, the nutrient criteria of the PRE and adjacent waters were established using frequency statistical analysis. Based on the spatiotemporal salinity patterns, the coastal waters of the PRE were divided in three subareas namely freshwater (Zone I), mixed (Zone II), and seawater (Zone III) using cluster analysis. The recommended criteria values of dissolved inorganic nitrogen (DIN) were 0.573, 0.312, and 0.134 mg·L-1 in Zones I, II, and III, respectively. The total nitrogen (TN) criterion for Zone III (0.222 mg·L-1) was much lower than those for Zone I (0.902 mg·L-1) and Zone II (0.885 mg·L-1).The dissolved inorganic phosphorus (DIP) criteria were different for the three Zones, ranging from 0.004 to 0.009 mg·L-1, and the total phosphorus (TP) recommended criteria in Zones I, II, and III were 0.039, 0.028, and 0.020 mg·L-1, respectively. In the water quality assessment, the categorizing numeric nutrients criteria can be referred and applied into fresh, mixed, and seawater zones of PRE. The results of this study provide a new nutrient reference condition in the PRE, which could be helpful in establishing integrated land-ocean unified nutrient criteria and water quality assessment, and implementing effective coastal eutrophication control in the future.

show abstract

Section: Introductionmentioning

confidence: 99%

Categorizing numeric nutrients criteria and implications for water quality assessment in the Pearl River Estuary, China

Zhang

et al. 2022

Front. Mar. Sci.

View full text Add to dashboard Cite

show abstract

Biodiversity of Phytoplankton: Responses to Environmental Changes in Coastal Zones

Monaco¹,

Prouzet²

2015

Marine Ecosystems

View full text Add to dashboard Cite

Management of the Marine Environment: Transdisciplinary and Systemic Approach

Prouzet¹,

Monaco

Sébastien³

2019

Encyclopedia of Water

View full text Add to dashboard Cite

Since the beginning of the twentieth century, observations have shown a significant degradation of aquatic environments. This degradation has got worse in the past century in all regions of the Globe. This is observed in many estuarine areas vital for the growth of high‐value species. Given the state of degradation of these coastal environments, their vulnerability to the anthropic effects and the natural hazards has become stronger whereas their resilience capacities have become significantly lower. The same goes for the many human communities living from the exploitation of living resources that can no longer ensure the sustainability of their fishing or farming activities. In addition to all these modifications the impacts, now proven, of climate change alter the temperature of water masses and biogeochemical characteristics of marine ecosystems. This integrated vision of the marine environment and of the aims of research makes it possible to address the issue of environmental governance and the problems involved in coordinating the knowledge and functions of scientific, social, economic and political actors. The three authors who are specialized in different fields of research exchange their points of view, redefine the terms, notions, concepts, and the questions related to the exercise of transdisciplinarity.

show abstract

Eutrophication of the Marine Environment

Cited by 4 publications

References 163 publications

Categorizing numeric nutrients criteria and implications for water quality assessment in the Pearl River Estuary, China

Categorizing numeric nutrients criteria and implications for water quality assessment in the Pearl River Estuary, China

Biodiversity of Phytoplankton: Responses to Environmental Changes in Coastal Zones

Management of the Marine Environment: Transdisciplinary and Systemic Approach

Contact Info

Product

Resources

About