|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Water,organic matter,nitrogen and phosphorus contents in sediment of a large-scale mariculture area in the Zhelin Bay of eastern Guangdong Province,China显示文摘The Zhelin Bay is one of the most important bays for large-scale mariculture in Guangdong Province, China. Owing to the increasing human population and the expanding mariculture in the last two decades, the ecological environment has greatly changed with frequent harmful algal blooms. A monthly survey of water content, organic matter (TOM), and various forms of nitrogen and phosphorous in sediment from July 2002 to July 2003 in the bay was conducted. The results showed that the water content was correlated significantly with TOM and various forms of nitrogen and phosphorus and can be used as proxy for quick and rough estimate of these factors in the future surveys. TOM was also correlated significantly with various forms of nitrogen and phosphorus, indicating that it was one of the key factors affecting the concentrations and distributions of nitrogen and phosphorus in the investigated waters. Average total Kjeldhal nitrogen (TkN) content was(1 113.1±382.5)μg/g and average total phosphorus (TP) content was(567.2±223.3)μg/g, and both were much higher than those of similar estuaries in China and elsewhere. Average nitrogen and phosphorus tended to be higher inside than outside the bay, higher at aquaculture than non-aquaculture areas, and higher at fish-cage culture than oyster culture areas, suggesting that large-scale mariculture inside the bay played an important role in the eutrophication of the Zhelin Bay. Various forms of nitrogen and phosphorus concentrations were higher during the warm season (July—September), which was due to the increased decomposition and concentration of organic matter resulted from the fast growth and high mortality of the cultured species. Compared with July 2002, TkN and TP contents were much higher in July 2003, in consonance with the eutrophication of the Zhelin Bay. Because exchangeable phosphorus (Ex-P), iron-bounded phosphorus (Fe-P) and organic phosphorus (OP) combined accounted for 34.3% of the TP and authigenic phosphorus (Au-P) accounted for 49.2% of the TP, biological phosphorus (BP) that includes Ex-P, Fe-P, OP, and a portion of Au-P, thus accounted for 34.3% to 83.5% of the TP in the Zhelin Bay, which was within the percentage range, but with a high absolute value among the estuaries. Au-P was the most important species of phosphorus and accounted for 49.2% of the TP during the investigation. Since eutrophication in the water column can lead to reduction of pH in sediment and release of phosphorus in Au-P combined with authigenic spodiosite and calcium carbonate, high content of Au-P in the sediment maybe act as a time bomb that can trigger a vicious cycle of eutrophication and large-scale harmful algal bloom in the Zhelin Bay. | DONG Qiaoxiang LIN Junda SHANG Xu LI Jin HUANG Changjiang | 2008 | Acta Oceanologica Sinica2008，27，2： | 5 |
| 2 | Taxonomic composition, abundance and biomass of mesozooplankton in the Zhelin Bay—an estuary with intensive aquaculture显示文摘The Zhelin Bay is an estuary that supports intensive aquaculture in South China. Aside from traditional nutrient inputs derived from waste water and agriculture, the increased intensification of aquaculture has accelerated eutrophication during the past decade, jeopardizing aquacultural production. Annual variations of mesozooplankton in the Zhelin Bay were described, providing baseline data for long-term ecological studies. The taxonomic composition, abundance and biomass of mesozooplankton were studied monthly from July 2001 to July 2002 at 19 stations. Collections yielded 73 taxa, including 60 species of copepods, three species of cladocerans, as well as tunicates, chaetognaths, polychaetes, medusae, ostracods, rotatori, amphipods, planktonic mollusks, pelagic larvae, and planktonic shrimps. The Zhelin Bay was dominated by small mesozooplankton, with 76% of the species smaller than 1.4 mm, and 97% of the individuals smaller than 1.0 mm. Dominant species (Paracalanus crassirostris, Oithona brevicornis,and Penilia avirostris) accounting for 60% of the total abundance were less than 0.6 mm in body length. Species diversity, biomass, and total abundance of mesozooplankton were greater in the samples collected outside the bay than inside the bay. Samples from the outer and eastern boundaries of the bay had greater biomass, diversity, and abundance than those from the inner and western boundaries. Total abundance and biomass had a unimodal annual pattern and were the greatest in August 2001 when water temperature was maximum, and the least in February 2002 when water temperature was minimum. Canonical correspondence analysis (CCA) revealed that temperature, turbidity, nutrients and salinity were the main determinants of spatial and temporal distributions of mesozooplankton in the Zhelin Bay, and six distinct zones were identified across the 19 sampling stations. | DONG Qiaoxiang LIN Xiaoping HE Xin KELSO WE HUANG Changjiang | 2006 | Acta Oceanologica Sinica2006，25，5： | 3 |
| 3 | Polycyclic aromatic hydrocarbons in surface sediments of the Zhelin Bay in the South China Sea显示文摘This study examined the concentrations of polycyclic aromatic hydrocarbons (PAHs) in surface sediments collected in July 2004 from eight stations in the Zhelin Bay, one of the most important bays for large-scale mariculture in Guangdong Province. Thirteen individual parent PAH compounds were identified using high performance liquid chromatography with UV detection. The overall average concentration of total PAHs was 477.0 ng/g, ranging from 146.1 to 928.8 ng/g. Low molecular mass PAHs with two to three rings (e.g., acenaphthene) were dominant in each sample. The PAH concentration varied among sampling stations, with the highest concentration observed at bay outlets and the lowest found at stations outside the bay. Ratios of low to high molecular mass PAHs and fluoranthene to pyrene were used to determine the origin of PAHs, and results indicated mainly petroleum-derived contamination. Compared with other bays and harbors around the world, the total concentrations of PAHs in surface sediments at the Zhelin Bay are moderate, but this does not exclude the possibility of potential impact on human consumers because some strong carcinogenic PAHs with high molecular mass were found at the station with a nearby caged-fish and oyster farm. Long-term monitoring of PAH contamination in the Zhelin Bay is recommended to reduce the potential toxicological effects on aquatic organisms and humans. | DONG Qiaoxiang HUANG Hong HUANG Changjiang | 2007 | Acta Oceanologica Sinica2007，26，2： | 2 |
| 4 | BDE-47 disrupts axonal growth and motor behavior in developing zebrafish显示文摘 | Xiaojuan Chen Changjiang Huang Xuechun Wang Jiangfei Chen Chenglian Bai Yuanhong Chen Xiangping Chen Qiaoxiang Dong Dongren Yang | 2012 | Aquatic Toxicology2012，，： | 1 |
| 5 | Sperm cryopreservation in guppies and black mollies—A generalized freezing protocol for livebearers in Poeciliidae显示文摘 | Changjiang Huang Chunli Sun Xinyou Su Xingen Zhao Miao Miao Yueqin Liu Qiaoxiang Dong | 2009 | Cryobiology2009，，3： | 1 |
| 6 | Preparation of magnetic multi-functional molecularly imprinted polymer beads for determining environmental estrogens in water samples显示文摘 | Zhenkun Lin Qiaoya He Lituo Wang Xuedong Wang Qiaoxiang Dong Changjiang Huang | 2013 | Journal of Hazardous Materials2013，，： | 1 |
| 7 | BDE-47 disrupts axonal growth and motor behavior in developing zebrafish显示文摘 | Xiaojuan Chen Changjiang Huang Xuechun Wang Jiangfei Chen Chenglian Bai Yuanhong Chen Xiangping Chen Qiaoxiang Dong Dongren Yang | 2012 | Aquatic Toxicology2012，，： | 1 |
| 8 | The dynamics of murine mammary stem/progenitor cells显示文摘在鼠科的乳腺的干细胞是为在发身,在成年人的动态平衡维护,和在怀孕期间的 lobulo 牙槽的开始的 ductal 延伸负责的房间的一张高度有活力的人口。当这些不同干细胞被察觉是为乳癌的各种各样的子类型的起源的房间,在最近的年理解,在乳腺以内的上皮的房间层次正在变得特别地重要。尽管重要进展被抗体的联合和流动 cytometry 对房间表面蛋白质在干细胞的丰富和隔离,并且在干细胞的鉴定做了,与多系,用乳房的脂肪的区别和自强填体质试金并且在 vivo 基因标记技术,的清楚的理解这些不同茎/祖先在乳腺被安排仍然正在缺乏。这里,我们讨论在 vivo 并且在为茎 / 祖先鉴定,他们的联系警告,和调解不同研究组识别的各种各样的通常认为的干细胞人口的一个可能的新层次模型当前可得到的 vitro 方法不同。 | Qiaoxiang DONG | 2014 | Frontiers in Biology2014，9，3： | 1 |
| 9 | Sperm cryopreservation of yellow drum Nibea albiflora : A special emphasis on post-thaw sperm quality显示文摘 | Tongren Dai Enhui Zhao Gang Lu Kai Che Qiutao He Yonglin Lu Qiongshan Fang Hansheng Wang Leyun Zheng Suping Li Changjiang Huang Qiaoxiang Dong | 2012 | Aquaculture2012，，： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员