Hao H.,The Third Institute of Oceanography |
Bin C.,The Third Institute of Oceanography |
Jinlan L.,The Guangxi Academy of Oceanography
Ocean and Coastal Management | Year: 2015
In order to effectively use limited funds and resources for conservation of biodiversity, the most valuable areas and contents have to be identified. Therefore, it is essential to identify the priority conservation areas (PCAs) and to explore the maximum conservation benefits for biodiversity conservation. The Convention on Biological Diversity (CBD) recommends that countries should conduct 'Ecologically or Biologically Significant Marine Areas (EBSAs) identification', and adopt a scheme of using scientific criteria to identify the EBSAs, but in China Offshore Areas, this kind of work almost does not exist. This paper focuses on the method and application of PCAs identification in Offshore China. The first step is to carry out marine spatial classification according to biogeographical factors, and then to discuss the PCAs identification in regard to marine biodiversity in species, community and ecosystem levels, finally to take Offshore China as a case study. Through marine spatial classification, Offshore China is divided into 5 biological regions by climate and geography differences, and 12 ecological regions by typical, ecological and administrative factors, and 98 biogeographical units by biogeographical factors. As a result, among 98 geographical units, 43 units are identified as PCAs, 31 units are PCAs at focal level, 16 units are PCAs at community level, and 15 units are PCAs at ecosystem level. © 2015 Elsevier Ltd.
Chen B.,The Third Institute of Oceanography |
Yu W.,The Third Institute of Oceanography |
Liu W.,Shantou University |
Liu Z.,The Third Institute of Oceanography
Ocean and Coastal Management | Year: 2012
Marine ecosystems are among China's most valuable resources, providing a wide range of services and benefits to human and other species. However, the reclamation since 1950s and the explosion of industrialization and urbanization have created severe environmental problems along China's vast coastline since late 1970s, and consequently marine ecosystems have been seriously stressed and degraded. In recent years, China has launched a series of restoration programs in order to preserve and restore the qualities of these attractive ecosystems. In this paper, three cases in marine ecosystem restoration (i.e. mangrove restoration in Quanzhou bay, bay ecosystem restoration in Wuyuan Bay of Xiamen and eutrophic semi-enclosed bay restoration in Xiamen western waters) were evaluated. The results, together with the brief assessment of practices in other coastal areas, showed that the major barriers for success are: (i) more comprehensive insights into ecological, socio-economic, political factors are necessary for setting-up clear project objectives and targets; (ii) more attention should be paid to ecological functions in order to restore the ecosystem's values and benefits; (iii) more scientific processes need to be conducted to evaluate the causes for ecosystem degradation and predict the probability for natural recovery; and (iv) degradation causes diagnosis, restoration technologies and methods, monitoring strategies and techniques, assessment and evaluation, adaptive management and results dissemination should be all emphasized during the restoration efforts. © 2011 Elsevier Ltd.
Wu R.,Xiamen University |
Lan D.,The Third Institute of Oceanography |
Fang Q.,The Third Institute of Oceanography |
Chen C.,Xiamen University |
And 3 more authors.
Chinese Journal of Oceanology and Limnology | Year: 2012
Diatom taxa in samples collected from the uppermost 1-cm sediment of the South China Sea (SCS) during cruises in 2000, 2001, and 2007 were investigated. Among them, two genera, Rutilaria and Trigonium, and 11 marine taxa (species and varieties) were described for the first time in China. The 11 taxa, Rutilaria radiata, Asterolampra grevillei, Biddulphia turrigera, Cocconeis cyclophora var. decora, Cocconeis ocellata, Dictyoneis marginata, Entogonia davyana, Tryblionella campechiana, Plagiogramma kinkeri, Plagiogramma nankoorense and Trigonium cf. contumax, were mainly extant species, although Rutilaria radiata and Entogonia davyana are fossils. Available data show that these species are mainly present in the eastern and western Pacific Ocean and the Indian Ocean. A large number of taxa newly recorded in this study were previously reported in the Philippines. The presence of these taxa in both locations is likely a result of seawater exchange in the SCS through the Bashi Channel. Taxonomic descriptions, habitats, and distributions of each diatom taxon are provided herein. © 2012 Chinese Society for Oceanology and Limnology, Science Press and Springer-Verlag Berlin Heidelberg.
Wen H.,The Third Institute of Oceanography |
Yang Y.,The Third Institute of Oceanography |
Liu Z.,The Third Institute of Oceanography |
Niu F.,The Third Institute of Oceanography
Shengxue Xuebao/Acta Acustica | Year: 2010
The prediction results showed that the viscous absorption of suspended particles is affected by suspended particle size. Based on reverberation method, the viscous absorption of 0.2~2.0 kg/m3 sediment and glass bead turbid seawater was measured. It is shown that the measurement results were more consistent with the prediction results using particle size distributions. By comparison of the prediction results using particle size distributions with that using average particle radius, it was that the discrepancy is 2.3~2.6 dB every 100 meters for 1.0 kg/m3 of sediment turbid seawater in the scope of experimental frequency. It was suggested that the particle size distributions must be used in the predictions of viscous absorption in coastal turbid water. © Right.
Pan A.J.,The Third Institute of Oceanography |
Wan X.F.,The Third Institute of Oceanography |
Guo X.G.,The Third Institute of Oceanography |
Jing C.S.,The Third Institute of Oceanography
Science China Earth Sciences | Year: 2013
In conjunction with synchronous remotely sensed winds and sea surface temperature (SST), the spatiotemporal features of the Zhe-Min coastal current (ZMCC), especially responses of the ZMCC adjacent to Pingtan Island (PT) to the wintertime monsoon relaxation in 2006 and corresponding mechanism are investigated based on the field observations. In situ data are acquired from Conductivity-Temperature-Depth (CTD) cruise and Bottom-Mounted Moorings (BMM), which are conducted during a comprehensive survey for the Chinese Offshore Investigation and Assessment Project in winter 2006. It is revealed that the ZMCC is well mixed vertically in winter 2006. The ZMCC (<14°C) recedes during the relaxation of the wintertime monsoon and is accompanied by the enhanced northward shift of the warm, saline Taiwan Strait Mixed Water (TSMW, higher than 14°C and is constituted by the Taiwan Strait Warm Water and the Kuroshio Branch Water). And greatly enhanced southward intrusion of the ZMCC can be detected when the wintertime monsoon restores. Correspondingly, the thermal interface bounded by the ZMCC and the TSMW moves in the northwest/southeast direction, leading to periodic warm/cold reversals of the near-seabed temperature adjacent to the PT. By EOF (Empirical Orthogonal Function) analysis of the large-scale wind fields and wavelet power spectrum analysis of the water level, ocean current and the near-seabed temperature, responses of the ZMCC off the PT to wintertime monsoon relaxation are suggested to be attributed mainly to the southward propagating coastally trapped waves triggered by the impeding atmospheric fronts. As a result, ocean current and near-seabed temperature demonstrate significant quasi-5 d and quasi-10 d subtidal oscillations. By contrast, the onshore/offshore water accumulation resulted from Ekman advection driven by the local winds has minor contributions. © 2012 Science China Press and Springer-Verlag Berlin Heidelberg.