Shandong Provincial Key Laboratory of Fishery Resources and Ecological Environment SFREE

Qingdao, China

Shandong Provincial Key Laboratory of Fishery Resources and Ecological Environment SFREE

Qingdao, China
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Niu M.X.,Chinese Academy of Fishery Sciences | Niu M.X.,Key Laboratory of Sustainable Development of Marine Fisheries | Niu M.X.,Shandong Provincial Key Laboratory of Fishery Resources and Ecological Environment SFREE | Wang J.,Chinese Academy of Fishery Sciences | And 4 more authors.
Shengtai Xuebao/ Acta Ecologica Sinica | Year: 2017

As the main channel of matter exchange between riverine and marine environments, estuarine ecosystems have been subjected to growing environmental interference and disturbance. Anthropogenic activities and the interactions between land and sea considerably affect estuarine ecosystems and health, and they have resulted in challenges for ecosystem management. Ecosystem health assessment, a new method of ecosystem assessment, determines the current ecosystem structure and function, and provides substantial information necessary for effective ecosystem management. Therefore, for the management of the Yellow River Estuary, a pressure-state-response (PSR) method was used to assess the health status of the ecosystem. The estuary and the adjacent marine and terrestrial ecosystems were considered an entity under the broad definition of estuarine ecosystems. An ecosystem health assessment indicator system was developed, taking externalpressure, ecosystem state, and response parameters into consideration to calculate indicators of regional ecosystem health. The health status of the Yellow River estuarine ecosystem was then assessed using a comprehensive evaluation index (CEI), including historical data from 1991. The results showed that the overall index of the Yellow River Estuary was 0.7427 in October 2013. In detail, the response index was 0.9055, which indicates that the Yellow River estuarine ecosystem was “very healthy,” suggesting the policy and behavior of local government, relevant departments, and individuals reduced the pressure on the regional environment to a certain extent. The pressure index was 0.8288, which indicates that the ecosystem was at a “good status,” but has been under growing pressure and its health has deteriorated. The state index was 0.6458, suggesting that the ecosystem is “unhealthy” and is under considerable pressure, requiring improvement. Overall, the current status of the Yellow River estuarine ecosystem was reasonably “healthy” as compared to that in 1991, but it has deteriorated. The state index showed the most serious decline among pressure, state, and response indexes. The main reasons for the health degradation of the Yellow River estuarine ecosystem were investigated by analyzing the index variation and its weight. The factors resulting in the deterioration included overfishing, unreasonable wetland development, over- farming in shallow seawater, and pollution. Therefore, actions should be taken to prevent further deterioration through ecological restoration and appropriate management of the Yellow River estuarine ecosystem. Any future development should be based on scientific planning for the sustainability of the ecosystem. © 2017, Ecological Society of China. All rights reserved.


Niu M.-X.,Key Laboratory of Sustainable Development of Marine Fisheries | Niu M.-X.,Shandong Provincial Key Laboratory of Fishery Resources and Ecological Environment SFREE | Niu M.-X.,Chinese Academy of Fishery Sciences | Wang J.,Key Laboratory of Sustainable Development of Marine Fisheries | And 2 more authors.
Chinese Journal of Ecology | Year: 2014

Estuary ecosystem is usually productive and can provide diverse ecosystem services, however, it is vulnerable to the effects of human activities. Effective assessment of estuary ecosystem health can provide the scientific basis for understanding the status and sustainability of the ecosystem. In this study, we reviewed theories on health assessment of estuary ecosystem, e. g. characteristics, conception and criterion, and summarized the index, technology and evaluation models as well as the rules for index choosing in the present applications. The technology of remote sensing (RS) and geographic information system (GIS) were additionally emphasized. Considering the existing difficulties in the health assessment of estuary ecosystem, we proposed a possible trend of development in this field. New technologies along with the concept, impact mechanism and spatial scale setting were suggested to be further strengthened in the future researches of estuary ecosystem health evaluation. © 2014, Editorial Board of Chinese Journal of Ecology. All rights reserved.


Xue S.,Ocean University of China | Xue S.,Chinese Academy of Fishery Sciences | Xue S.,Shandong Provincial Key Laboratory of Fishery Resources and Ecological Environment SFREE | Fang J.,Chinese Academy of Fishery Sciences | And 9 more authors.
Chinese Journal of Oceanology and Limnology | Year: 2013

The amphipod crustacean Eogammarus sinensis has useful features that make it suitable for use in the aquaculture of fish and large decapod crustaceans. In this study, we investigated the effects of temperature and salinity on the development, fecundity, survival, and growth rate of E. sinensis. The results show that temperature significantly affected E. sinensis development, but salinity. As temperature increased, the duration of E. sinensis embryonic development decreased. Fecundity was affected significantly by temperature and the combination of temperature and salinity, but by salinity alone. In addition, high temperatures accelerated E. sinensis juvenile growth rates, whereas high salinity reduced it. Therefore, our data suggest that E. sinensis tolerates a wide range of salinities and that temperature has more significant effects than salinity on the embryonic development, fecundity, and growth of E. sinensis. Our results shall be useful for mass production of this species for use in aquaculture. © 2013 Chinese Society for Oceanology and Limnology, Science Press and Springer-Verlag Berlin Heidelberg.

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