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Article ; Online: The distribution of microplastics in water, sediment, and fish of the Dafeng River, a remote river in China.

Liu, Shuo / Chen, Huan / Wang, Jingzhen / Su, Lei / Wang, Xilong / Zhu, Jingmin / Lan, Wenlu

2021 Volume 228, Page(s) 113009

Abstract: ... on remote rivers are rare. Dafeng River is located in Guangxi Province, China, is an important water source ...

Abstract	Although rivers are one of the dominant pathways by which microplastics reach the oceans, reports on remote rivers are rare. Dafeng River is located in Guangxi Province, China, is an important water source and a habitat of a coastal dolphin, Sousa chinensis, which is a first-class national protected animal in China. In this study, we determined the distribution and characteristics of microplastics in the surface water, sediment, and fish of the river. During the dry and rainy seasons, the microplastics content of the surface water ranged from 3 × 10
Language	English
Publishing date	2021-11-19
Publishing country	Netherlands
Document type	Journal Article
ZDB-ID	436536-7
ISSN	1090-2414 ; 0147-6513
ISSN (online)	1090-2414
ISSN	0147-6513
DOI	10.1016/j.ecoenv.2021.113009
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Article: Spatial Distribution of Soil Organic Carbon and Total Nitrogen in a Ramsar Wetland, Dafeng Milu National Nature Reserve

Yao, Xiuying / Yan, Dandan / Li, Jingtai / Liu, Yao / Sheng, Yufeng / Xie, Siying / Luan, Zhaoqing

Water. 2022 Jan. 11, v. 14, no. 2

2022

Abstract: ... representing two land-cover types by implementing an unprecedented high sampling density study in the Dafeng ...

Abstract	The invasion and expansion of Spartina alterniflora in coastal salt marsh wetlands have greatly affected the material cycle of the ecosystem. A total of 372 topsoil samples were collected from 124 sites representing two land-cover types by implementing an unprecedented high sampling density study in the Dafeng Milu National Nature Reserve. Classical statistics and geostatistics were used to quantify soil organic carbon (SOC) and total nitrogen (TN) spatial distribution. Redundancy analysis (RDA) was used to detect correlations between environmental factors, SOC, and TN. The results showed that SOC and TN have moderate variability. The spatial distributions of SOC and TN were similar, and the highest values were observed in the southwest of the study area. In different land cover types, the SOC and TN in the vegetation coverage areas with Spartina alterniflora as the dominant species were significantly higher than those in bare land. RDA showed that TN and aboveground biomass significantly affected the spatial distribution of SOC, while SOC and AGB dominated the spatial distribution of TN.
Keywords	Spartina alterniflora ; aboveground biomass ; conservation areas ; dominant species ; ecosystems ; geostatistics ; land cover ; salt marshes ; soil organic carbon ; topsoil ; total nitrogen ; water
Language	English
Dates of publication	2022-0111
Publishing place	Multidisciplinary Digital Publishing Institute
Document type	Article
ZDB-ID	2521238-2
ISSN	2073-4441
ISSN	2073-4441
DOI	10.3390/w14020197
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: A new Eimeria coccidian species (Apicomplexa: Eimeriidae) from Père David's deer (Elaphurus davidianus Milne-Edwards, 1866) in Dafeng Milu National Nature Reserve in Jiangsu Province, eastern China.

Cai, Weimin / Suding, Zeyang / Wang, Lele / Hou, Zhaofeng / Liu, Dandan / Huang, Siyang / Xu, Jinjun / Tao, Jianping

BMC veterinary research

2022 Volume 18, Issue 1, Page(s) 213

Abstract: ... Therefore, the purpose of this study is to identify an unknown Eimeria genus in the Père David's deer in Dafeng Milu ...

Abstract	Background: Eimeria coccidiosis is a significant intestinal parasitic disease, which can lead to weight loss, disease and even death of many animals. At present, there is no information about the prevalence of Eimeria among the world's endangered species of Père David's deer (Elaphurus davidianus). Therefore, the purpose of this study is to identify an unknown Eimeria genus in the Père David's deer in Dafeng Milu National Nature Reserve, China. Results: A new Eimeria species is described from Père David's deer. Sporulated oocysts (n = 54) are pyriform, with a rough, yellowish brown, 2-layered oocyst wall (2.5 μm thick). A numerous small granules are dispersed randomly on the wall. Oocysts measured 41.2 (39.2-42.8) μm × 29.5 (27.9-30.5) μm, oocyst length/width (L/W) ratio, 1.4. Oocyst residuum, a polar granule and a polar cap are absent. The micropyle (3.5 μm wide) is present. Sporocysts are spindle shaped, 18.2 (16.5-20.0) μm × 10.5 (9.8-11.9) μm, sporocyst L/W ratio, 1.7 (1.5-1.9). A thin convex Stieda body is present and the sporocyst residuum is composed of numerous small granules less than 2.0 μm in diameter dispersed randomly. Each sporocyst contained 2 comma-shaped sporozoites in head-to-tail arrangement. A nucleus is located immediately anterior to the posterior, strong refractive and subspherical refractile body (~ 8 μm). Molecular analysis was conducted at the 18S, ITS-1 and COI loci. Conclusion: Based on the morphological and molecular data, this isolate is a new species of coccidian parasite, which is named Eimeria davidianusi after its host, the Père David's deer (Elaphurus davidianus).
MeSH term(s)	Animals ; Coccidiosis/epidemiology ; Coccidiosis/parasitology ; Coccidiosis/veterinary ; Deer ; Eimeria ; Feces/parasitology ; Oocysts
Language	English
Publishing date	2022-06-03
Publishing country	England
Document type	Journal Article
ZDB-ID	2191675-5
ISSN	1746-6148 ; 1746-6148
ISSN (online)	1746-6148
ISSN	1746-6148
DOI	10.1186/s12917-022-03308-2
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Inter-annual variability of heavy metals pollution in surface sediments of Jiangsu coastal region, China: Case study of the Dafeng Port.

Chen, Ye / Liu, Qing / Xu, Min / Wang, Zaifeng

Marine pollution bulletin

2019 Volume 150, Page(s) 110720

Abstract: ... As, and Hg concentrations in the surface sediment of Dafeng Port during 2011-2017 were analyzed ... of heavy metals were similar, and the highest concentrations were measured near Dafeng Port and coastal river ...

Abstract	The Jiangsu coastal environment in China is affected by pollution, and the Cu, Pb, Cd, Zn, Cr, As, and Hg concentrations in the surface sediment of Dafeng Port during 2011-2017 were analyzed to determine their contamination and ecological risks. The multi-year average of Zn, Cr, Pb, Cu, As, Cd, and Hg concentrations were 50.10, 40.32, 12.41, 11.76, 8.67, 0.08, and 0.04 mg/kg, respectively, which were generally higher than their background values, except for those of Cu and Cr. The spatial distribution of heavy metals were similar, and the highest concentrations were measured near Dafeng Port and coastal river inlets. The geoaccumulation index generally indicated moderate-low ecological risk, except for Cd. Multivariate statistical analyses showed that Pb, Zn, Cr, As, Hg, Cd, and petroleum were strongly influenced by anthropogenic activities, whereas Cu derived from both natural and anthropogenic sources. This study provides important information for the management of heavy metal contamination.
MeSH term(s)	China ; Environmental Monitoring ; Geologic Sediments ; Metals, Heavy ; Risk Assessment ; Water Pollutants, Chemical
Chemical Substances	Metals, Heavy ; Water Pollutants, Chemical
Language	English
Publishing date	2019-11-25
Publishing country	England
Document type	Journal Article
ZDB-ID	2001296-2
ISSN	1879-3363 ; 0025-326X
ISSN (online)	1879-3363
ISSN	0025-326X
DOI	10.1016/j.marpolbul.2019.110720
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Article ; Online: The distribution of microplastics in water, sediment, and fish of the Dafeng River, a remote river in China

Shuo Liu / Huan Chen / Jingzhen Wang / Lei Su / Xilong Wang / Jingmin Zhu / Wenlu Lan

Ecotoxicology and Environmental Safety, Vol 228, Iss , Pp 113009- (2021)

2021

Abstract: ... on remote rivers are rare. Dafeng River is located in Guangxi Province, China, is an important water source ... of microplastics carried by the Dafeng River flow was 8.3 × 108 particles. The microplastics pollution ... in the Dafeng River was closely related with residential activities. The contents of microplastics ...

Abstract	Although rivers are one of the dominant pathways by which microplastics reach the oceans, reports on remote rivers are rare. Dafeng River is located in Guangxi Province, China, is an important water source and a habitat of a coastal dolphin, Sousa chinensis, which is a first-class national protected animal in China. In this study, we determined the distribution and characteristics of microplastics in the surface water, sediment, and fish of the river. During the dry and rainy seasons, the microplastics content of the surface water ranged from 3 × 10−4-2.5 × 10−3 items/L (7 × 10−4-0.12 items/m2) and 4 × 10−5-9 × 10−4 items/L (2 × 10−3-2.8 × 10−2 items/m2), while those in the sediment samples ranged from 9.4 to 50.3 items/kg (dry weight) and 0.0–21.3 items/kg, respectively. The pollution level during the dry season was approximately two to three times higher than that during the rainy season (P < 0.05). The estimated annual load of microplastics carried by the Dafeng River flow was 8.3 × 108 particles. The microplastics pollution in the Dafeng River was closely related with residential activities. The contents of microplastics in the digestive tracts and gills of fish ranged from 8 × 102 to 5.7 × 103 items/kg (0.3–6.7 items/individual) and 2 × 102 to 1.7 × 103 items/kg (0.1–3.0 items/individual), respectively. The proportion of blue particles in fish was significantly higher than that in the water and sediment, which may indicate that they prefer blue-colored items. The microplastics pollution levels in the water, sediment, and fish of the Dafeng River decreased in the following order: fish > sediment > surface water in terms of items/kg. The level of microplastics pollution in the Dafeng River was relatively low; however, that in aquatic organisms was more severe. Our work highlights the requirement for concern towards microplastics pollution in the organisms of remote rivers.
Keywords	Microplastics ; Remote river ; Water ; Sediment ; Fish ; Environmental pollution ; TD172-193.5 ; Environmental sciences ; GE1-350
Subject code	333 ; 550
Language	English
Publishing date	2021-12-01T00:00:00Z
Publisher	Elsevier
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article: Inter-annual variability of heavy metals pollution in surface sediments of Jiangsu coastal region, China: Case study of the Dafeng Port

Chen, Ye / Liu, Qing / Xu, Min / Wang, Zaifeng

Marine pollution bulletin. 2020 Jan., v. 150

2020

Abstract: ... As, and Hg concentrations in the surface sediment of Dafeng Port during 2011–2017 were analyzed ... of heavy metals were similar, and the highest concentrations were measured near Dafeng Port and coastal river ...

Abstract	The Jiangsu coastal environment in China is affected by pollution, and the Cu, Pb, Cd, Zn, Cr, As, and Hg concentrations in the surface sediment of Dafeng Port during 2011–2017 were analyzed to determine their contamination and ecological risks. The multi-year average of Zn, Cr, Pb, Cu, As, Cd, and Hg concentrations were 50.10, 40.32, 12.41, 11.76, 8.67, 0.08, and 0.04 mg/kg, respectively, which were generally higher than their background values, except for those of Cu and Cr. The spatial distribution of heavy metals were similar, and the highest concentrations were measured near Dafeng Port and coastal river inlets. The geoaccumulation index generally indicated moderate–low ecological risk, except for Cd. Multivariate statistical analyses showed that Pb, Zn, Cr, As, Hg, Cd, and petroleum were strongly influenced by anthropogenic activities, whereas Cu derived from both natural and anthropogenic sources. This study provides important information for the management of heavy metal contamination.
Keywords	case studies ; coasts ; heavy metals ; marine pollution ; petroleum ; risk ; rivers ; sediments ; China
Language	English
Dates of publication	2020-01
Publishing place	Elsevier Ltd
Document type	Article
Note	NAL-AP-2-clean
ZDB-ID	2001296-2
ISSN	1879-3363 ; 0025-326X
ISSN (online)	1879-3363
ISSN	0025-326X
DOI	10.1016/j.marpolbul.2019.110720
Database	NAL-Catalogue (AGRICOLA)

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Article ; Online: A new Eimeria coccidian species (Apicomplexa: Eimeriidae) from Père David’s deer (Elaphurus davidianus Milne-Edwards, 1866) in Dafeng Milu National Nature Reserve in Jiangsu Province, eastern China

Cai, Weimin / Suding, Zeyang / Wang, Lele / Hou, Zhaofeng / Liu, Dandan / Huang, Siyang / Xu, Jinjun / Tao, Jianping

BMC Vet Res. 2022 Dec., v. 18, no. 1 p.213-213

2022

Abstract: ... Therefore, the purpose of this study is to identify an unknown Eimeria genus in the Père David’s deer in Dafeng Milu ...

Abstract	BACKGROUND: Eimeria coccidiosis is a significant intestinal parasitic disease, which can lead to weight loss, disease and even death of many animals. At present, there is no information about the prevalence of Eimeria among the world’s endangered species of Père David’s deer (Elaphurus davidianus). Therefore, the purpose of this study is to identify an unknown Eimeria genus in the Père David’s deer in Dafeng Milu National Nature Reserve, China. RESULTS: A new Eimeria species is described from Père David’s deer. Sporulated oocysts (n = 54) are pyriform, with a rough, yellowish brown, 2-layered oocyst wall (2.5 μm thick). A numerous small granules are dispersed randomly on the wall. Oocysts measured 41.2 (39.2–42.8) μm × 29.5 (27.9–30.5) μm, oocyst length/width (L/W) ratio, 1.4. Oocyst residuum, a polar granule and a polar cap are absent. The micropyle (3.5 μm wide) is present. Sporocysts are spindle shaped, 18.2 (16.5–20.0) μm × 10.5 (9.8–11.9) μm, sporocyst L/W ratio, 1.7 (1.5–1.9). A thin convex Stieda body is present and the sporocyst residuum is composed of numerous small granules less than 2.0 μm in diameter dispersed randomly. Each sporocyst contained 2 comma-shaped sporozoites in head-to-tail arrangement. A nucleus is located immediately anterior to the posterior, strong refractive and subspherical refractile body (~ 8 μm). Molecular analysis was conducted at the 18S, ITS-1 and COI loci. CONCLUSION: Based on the morphological and molecular data, this isolate is a new species of coccidian parasite, which is named Eimeria davidianusi after its host, the Père David’s deer (Elaphurus davidianus).
Keywords	Eimeria ; Elaphurus davidianus ; coccidiosis ; conservation areas ; death ; endangered species ; intestines ; new species ; oocysts ; parasites ; sporozoites ; weight loss ; China
Language	English
Dates of publication	2022-12
Size	p. 213.
Publishing place	BioMed Central
Document type	Article ; Online
ZDB-ID	2191675-5
ISSN	1746-6148
ISSN	1746-6148
DOI	10.1186/s12917-022-03308-2
Database	NAL-Catalogue (AGRICOLA)

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Article: [Analysis of incidence of major cancers in Dafeng, Jiangsu Province, 1999 - 2007].

Wang, Yin-Cun / Ming, Heng-Tai / Liu, Ai-Min / Gu, Xiao-Ping / Chen, Juan

Zhonghua yi xue za zhi

2009 Volume 89, Issue 6, Page(s) 412–414

Abstract: Objective: To examine the epidemiologic characteristics of major cancers in Dafeng City, Jiangsu ... Province.: Methods: The cancer registry data 1999 - 2007 of Dafeng were analyzed retrospectively ... in Dafeng. Priority should be paid to prevention and treatment of cancers of the digestive and ...

Abstract	Objective: To examine the epidemiologic characteristics of major cancers in Dafeng City, Jiangsu Province. Methods: The cancer registry data 1999 - 2007 of Dafeng were analyzed retrospectively. Results: Over the 9 years, the crude incidence of cancers was 244.99 persons per 100 thousand and the standard incidence ratio (SIR) was 175.48 persons per 100 thousand. The crude incidence and SIR of cancers of the males was 299.22 persons per 100 thousand and 214.41 persons per 100 thousand respectively, 1.57 and 1.76 times as high as those of the females (190.92 per 100 thousand and 137.34 per 100 thousand respectively). The incidence of cancers increased remarkably since the age group of 509, peaked at the age groups 70 and 80, and decreased remarkably since the age group of 85. Stomach cancer ranked first for incidence among the males while esophageal cancer ranked first for the females. Conclusion: The incidence of cancers, especially the lung cancer, shows a trend to increase in both the males and females in Dafeng. Priority should be paid to prevention and treatment of cancers of the digestive and respiratory systems.
MeSH term(s)	Age Distribution ; Breast Neoplasms/epidemiology ; China/epidemiology ; Esophageal Neoplasms/epidemiology ; Female ; Humans ; Incidence ; Lung Neoplasms/epidemiology ; Male ; Neoplasms/epidemiology ; Registries ; Sex Distribution ; Stomach Neoplasms/epidemiology ; Uterine Cervical Neoplasms/epidemiology
Language	Chinese
Publishing date	2009-02-17
Publishing country	China
Document type	English Abstract ; Journal Article
ZDB-ID	132513-9
ISSN	0376-2491
ISSN	0376-2491
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Article: [Evaluation method and index system of eco-city development: a case study in Dafeng City of Jiangsu Province, China].

Li, Feng / Liu, Xu-Sheng / Hu, Dan / Wang, Ru-Song

Ying yong sheng tai xue bao = The journal of applied ecology

2007 Volume 18, Issue 9, Page(s) 2006–2012

Abstract: ... in measuring the effect of urban ecological planning, construction, and management. Taking the Dafeng City ... Synthesis Illustration method. The results indicated that in 2004, the comprehensive index of Dafeng eco ...

Abstract	City is a kind of social-economic-natural complex ecosystem. How to realize the urban sustainable development is one of the important issues in the world. Eco-city is one of the ideal patterns for urban sustainable development, while the evaluation method and related indices of eco-city development are the main basis in measuring the effect of urban ecological planning, construction, and management. Taking the Dafeng City of Jiangsu Province as a case, the eco-city index system consisting of 58 indices of 4 categories including economic development, ecological construction, environment protection and social progress was established, and the construction effect was evaluated at different urban development phases by using Full Permutation Polygon Synthesis Illustration method. The results indicated that in 2004, the comprehensive index of Dafeng eco-city was 0.24, and the sustainable development ability was belonged to class IV, i.e., be worse, but in 2010, 2015 and 2020, it would reach to 0.45, 0.66 and 0.85, and the sustainable development ability would belong to class III, II and I, i.e., be moderate, better and excellent, respectively. This research could be a reference for decision-making of eco-city development.
MeSH term(s)	China ; City Planning ; Conservation of Natural Resources/methods ; Ecosystem ; Environment Design ; Environmental Monitoring/methods ; Reproducibility of Results ; Socioeconomic Factors ; Soil/analysis
Chemical Substances	Soil
Language	Chinese
Publishing date	2007-09
Publishing country	China
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2881809-X
ISSN	1001-9332
ISSN	1001-9332
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Article ; Online: Structural and Functional Insights into the Stealth Protein CpsY of

Liu, Dafeng / Yuan, Cai / Guo, Chenyun / Huang, Mingdong / Lin, Donghai

Biomolecules

2023 Volume 13, Issue 11

Abstract: Mycobacterium ... ...

Abstract	Mycobacterium tuberculosis
MeSH term(s)	Humans ; Mycobacterium tuberculosis/genetics ; Mycobacterium tuberculosis/metabolism ; Bacterial Proteins/metabolism ; Tuberculosis/microbiology ; Molecular Dynamics Simulation ; Polysaccharides
Chemical Substances	Bacterial Proteins ; Polysaccharides
Language	English
Publishing date	2023-11-03
Publishing country	Switzerland
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	2701262-1
ISSN	2218-273X ; 2218-273X
ISSN (online)	2218-273X
ISSN	2218-273X
DOI	10.3390/biom13111611
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