中国水产科学2012，Vol.19Issue(1)：84-93,10.DOI:10.3724/SP.J.1118.2012.00084
长江水系3个湖泊中华绒蟹形态及元素“指纹”特征
A comparative study of morphological characteristics and elemental fingerprints of Chinese mitten crab Eriocheir sinensis from three lakes
摘要
Abstract
Morphological characteristics and elemental fingerprints were compared in Chinese mitten crabs (Eri-ocheir sinensis) from three lakes (Taihu Lake, Shijiu Lake and Gucheng Lake) in Jiangsu Province. Truss network analysis using 16 length measurements suggested that crabs from the three lakes could not be reliably characterized based on morphological characteristics. The accuracy rates yielded by discriminant analysis were 70% for crabs from Taihu Lake, 90% for those from Shijiu Lake, and 80% for those from Gucheng Lake. An Agilent 7500ce ICP-MS was used to measure the concentrations of 21 chemical elements (Na, K, Ca, Fe, Mg, Sr, Ag, Al, As, Ba, Cd, Co, Cr, Cu, Mn, Mo, Ni, Pb, Se, Tl and Zn) in the third pereiopod of the crabs from the three lakes. The concentrations of Cr, Co, As, Se, Cd, Pb, Tl, Ag, Mo, and Ni were below the detection limit. However, in contrast to the morphological analysis, the origin of the crabs from the three lakes could be consistently identified from their elemental fingerprints. The corresponding accuracy rates yielded by discriminant analysis were 100% for crabs from Taihu Lake, 80% for those from Shijiu Lake, and 100% for those from Gucheng Lake. We conclude that the approach of using environmentally determined elemental fingerprints in the third pereiopod of the crabs is a potentially valid method for identifying the geographical origin of Chinese mitten crabs.关键词
中华绒螯蟹/形态/元素"指纹"/原产地/判别分析Key words
Eriocheir sinensis/ morphological characters/ elemental fingerprint/ geographical origin/ discriminant analysis分类
农业科技引用本文复制引用
杨文斌,苏彦平,刘洪波,杨健,徐跑..长江水系3个湖泊中华绒蟹形态及元素“指纹”特征[J].中国水产科学,2012,19(1):84-93,10.基金项目
农业部公益性行业科研专项(nyhyzx07-045) （nyhyzx07-045）
中央级公益性科研院所基本科研业务费专项资金项目(2011JBFA14). （2011JBFA14）
