Phytoplankton dynamics in the Bohai Sea—observations and modelling

Wei, Hao; Sun, Jun; Moll, A.; Zhao, Liang

doi:10.1016/j.jmarsys.2003.09.012

Cited by 133 publications

(72 citation statements)

References 11 publications

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“…For example, chlorophyll-a concentrations were correlated positively to silicate concentrations (Gao et al, 2003;Wei et al, 2004). Therefore, it can be inferred that decreases of the amount of these nutrients in the river discharge impaired phytoplankton growth in the study area.…”

Section: Changes In Primary Productivity In the Huanghe River Estuarymentioning

confidence: 95%

Response of coastal marine eco-environment to river fluxes into the sea: A case study of the Huanghe (Yellow) River mouth and adjacent waters

Fan

Huang

2008

Marine Environmental Research

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Section: Changes In Primary Productivity In the Huanghe River Estuarymentioning

confidence: 95%

Response of coastal marine eco-environment to river fluxes into the sea: A case study of the Huanghe (Yellow) River mouth and adjacent waters

Fan

Huang

2008

Marine Environmental Research

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“…The fundamental knowledge of the temporal and spatial variability of physical, chemical and biological components in the Bohai Sea is mainly gained from four comprehensive investigations across the whole area carried out monthly in 1959/1960and 1982/1983, and seasonally in 1984/1985/1993(Wei et al, 2004. Two atlases and one volume of research collection have been published based on the latter three investigations (Editorial Board for Marine Atlas, 1991;Tang and Meng, 1997;Yellow Sea Fisheries Research Institute, 1991).…”

Section: Background Information Of the Bohai Seamentioning

confidence: 99%

Pollution status of the Bohai Sea: An overview of the environmental quality assessment related trace metals

Gao

Zhou

Chen

2014

Environment International

338

170

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It is well recognized that the ecosystem of the Bohai Sea is being rapidly degraded and the Sea has basically lost its function as a fishing ground. Billions of funds have been spent in slowing down, halting and finally reversing the environmental deterioration of the Bohai Sea. Although trace metals are routinely monitored, the data with high temporal resolution for a clear understanding of biogeochemical processes in the ecosystem of the Bohai Sea are insufficient, especially in the western literature. In this review, status of trace metal contamination in the Bohai Sea is assessed based on a comprehensive review of their concentrations recorded in the waters, sediments and organisms over the past decades. Studies show that metal contamination in the Bohai Sea is closely associated with the fast economic growth in the past decades. Concentrations of trace metals are high in coastal areas especially in the estuaries. Alarmingly high metal concentrations are observed in the waters, sediments and organisms from the western Bohai Bay and the northern Liaodong Bay, especially the coasts near Huludao in the northernmost area of the Bohai Sea, which is being polluted by industrial sewage from the surrounding areas. The knowledge of the speciation and fractionation of trace metals and the influence of submarine groundwater discharge on the biogeochemistry of trace metals in the Bohai Sea is far from enough and related work needs to be done urgently to get a better understanding of the influence of trace metals on the ecosystem of the Bohai Sea. A clear understanding of the trace metal pollution status of the Bohai Sea could not be achieved presently for lack of systematic cooperation in different research fields. It is quite necessary to apply the environmental and ecological modeling to the investigation of trace metals in the Bohai Sea and then provide foundations for the protection of the environment and ecosystem of the Bohai Sea.

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“…Observations at different times (Kang, 1991;Wei et al, 2004) have shown that diatom is always the dominant algae species in BS, so silicate may play an important role in the phytoplankton dynamics. Although the silicate stock has decreased a lot since late 1950s, it is still high enough to avoid from becoming the limiting nutrient (Cui et al, 1991;Zhang et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

“…It was found that both nutrients are characterized by the lowest level in summer and the highest level in winter. Previous investigations in BS have shown that the seasonal variation in the phytoplankton community exhibits a double-peak structure, corresponding to spring and autumn bloom, respectively (Fei et al, 1991;Wei et al, 2004). It is the typical feature in the North…”

Section: Validation Of Simulationsmentioning

confidence: 92%

“…It is interesting to note that in BS the most intense algae bloom generally occurs in spring, not in summer when is characterized by the highest level of primary productivity (Wei et al, 2004;Fei et al, 1991;Liu and Yin, 2006a). This phenomenon may be ascribed to the strong grazing pressure from zooplankton (Bai et al, 1991;Zhao et al, 2004).…”

Section: Validation Of Simulationsmentioning

confidence: 99%

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Numerical investigation of nutrient limitations in the Bohai Sea

Liu

Yin

2010

Marine Environmental Research

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River discharges are the important freshwater and nutrient sources for Bohai Sea (BS), and have a profound impact on the local marine environment. In this paper, the annual cycles of nutrient and phytoplankton dynamics in 1980s were reproduced using a coupled biogeochemical-physical model. Based on the validated simulations, the nutrient limitation characters were further investigated by running the model with the riverine nutrient altered, first enriching nitrogen and then phosphorus. It was found that although the riveine N:P ratios in Yellow and Haihe Rivers were much higher than the Redfield number, the nitrogen enrichment was still able to enhance the algae bloom in Laizhou and Bohai Bays. On the other hand, the response of algae growth to phosphorus enrichment was not thus obvious, which suggests the local phytoplankton dynamics was 2 characterized by the nitrogen limitation. Simulations also show that the nitrogen enrichment is generally accompanied by the phosphorus consumption, so a shift from nitrogen limitation to phosphorus limitation may occur if such a trend continues.

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Phytoplankton dynamics in the Bohai Sea—observations and modelling

Cited by 133 publications

References 11 publications

Response of coastal marine eco-environment to river fluxes into the sea: A case study of the Huanghe (Yellow) River mouth and adjacent waters

Response of coastal marine eco-environment to river fluxes into the sea: A case study of the Huanghe (Yellow) River mouth and adjacent waters

Pollution status of the Bohai Sea: An overview of the environmental quality assessment related trace metals

Numerical investigation of nutrient limitations in the Bohai Sea

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