Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2023, Vol. 39 ›› Issue (6): 144-151.doi: 10.11924/j.issn.1000-6850.casb2022-0184

Special Issue: 生物技术 水产渔业

• Original article • Previous Articles     Next Articles

The Elemental Composition in Water and Sediment of Culture Habitat of Eriocheir sinensis in the Yangcheng Lake

XUE Junren1(), LIU Hongbo2, JIANG Tao2, CHEN Xiubao2, CHEN Yun3, YANG Jian1,2()   

  1. 1 Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, Jiangsu 214081
    2 Laboratory of Fishery Microchemistry, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, Jiangsu 214081
    3 The Sixth Geological Brigade of Jiangsu Geology& Mineral Exploration Bureau, Lianyungang, Jiangsu 222000
  • Received:2022-03-18 Revised:2022-08-07 Online:2023-02-25 Published:2023-02-22

Abstract:

In order to understand the characteristics of elements’ contents in habitat water and sediment of the Chinese mitten crab (Eriocheir sinensis) in the Yangcheng Lake, and explore the correlations between the elements and the Chinese mitten crab, the water and sediment samples were collected monthly from the purse seine culture area of Chinese mitten crabs in the Yangcheng Lake during the year-long period. The concentrations of the elements in water were determined by inductively coupled plasma mass spectrometer (ICP-MS), and the concentrations of the elements in sediment were determined by ICP-MS, inductively coupled plasma atomic emission spectrometry (ICP-AES) and X-ray fluorescence analysis (XRF), respectively. The results showed that the elements’ contents of the water samples could meet Pollution-free Food-Quality of Water for Freshwater Aquiculture and Environmental Quality Standards for Surface Water (Class I). The elements’ contents of the sediment samples were not within the risk screening value range of Soil Environmental Quality Risk Control Standard for Soil Contamination of Agricultural Land. Pearson correlation analysis of the 10 elements (e.g., Na) used for the identification of the origin of Chinese mitten crab indicated that there was a very significantly positive correlation for Ba (P<0.01), and significantly positive correlation (P<0.05) for Mg and Zn between crab and water samples. In contrast, K showed significantly negative correlation (P<0.05) between crab and sediment samples. The aforementioned evidences suggested that no heavy metal contamination was found in both water and sediment habitats of the purse seine culture area of Chinese mitten crabs in the Yangcheng Lake, and certain correlations were observed between the crabs and the culture habitat in the Yangcheng Lake.

Key words: Eriocheir sinensis, water, sediment, Yangcheng Lake, mineral elements