长江口近岸水域鮻耳石的元素组成

doi:10.13292/j.1000-4890.202009.033

生态学杂志 ›› 2020, Vol. 39 ›› Issue (9): 3043-3047.doi: 10.13292/j.1000-4890.202009.033

长江口近岸水域鮻耳石的元素组成

赵峰^1,2*,纪严¹,杨刚^1,2,王妤^1,2,张涛^1,2,庄平^1,2*

（¹中国水产科学研究院东海水产研究所，农业农村部东海与长江口渔业资源环境科学观测实验站，上海 200090；²上海长江口渔业资源增殖和生态修复工程技术研究中心，上海 200090）

出版日期:2020-09-10 发布日期:2021-03-10

Element composition in the otolith of Liza haematocheila from the nearshore waters of the Yangtze Estuary.

ZHAO Feng^1,2*, JI Yan¹, YANG Gang^1,2, WANG Yu^1,2, ZHANG Tao^1,2, ZHUANG Ping^1,2*

(¹Scientific Observing and Experimental Station of Fishery Resources and Environment of the East China Sea and Yangtze Estuary, Ministry of Agriculture and Rural Affairs; East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200090, China; ²Shanghai Engineering Research Center of Fisheries Resources Enhancement and Ecological Restoration of the Yangtze Estuary, Shanghai 200090, China).

Online:2020-09-10 Published:2021-03-10

摘要/Abstract

摘要： 为了解长江口近岸水域鮻耳石的元素组成特征，采用激光剥蚀电感等离子质谱法对长江口近岸水域1～6年龄的13个鮻样本的耳石进行了检测。结果表明：鮻耳石中共检测到47种元素，含量前10位的元素依次为钙（Ca）、钠（Na）、锶（Sr）、铁（Fe）、钡（Ba）、镁（Mg）、锰（Mn）、铬（Cr）、锌（Zn）和锂（Li）。其中，Ca是含量最高且最稳定的元素，占检出元素总量的98.9%。鮻耳石含量前10位的元素在雌雄间不存在显著性差异（P>0.05），表明雌雄间存在相同的生活履历。基于耳石核心区Sr和Ca的含量比值，推测长江口近岸水域鮻的产卵孵化场位于潮间带淡水和半咸水水域。研究结果为长江口鮻的生境履历重建提供了基础数据和参考。

关键词: 鮻, 耳石微化学, 生境, 长江口

Abstract: To understand the element composition in otolith ofLiza haematocheila from the nearshore waters of the Yangtze Estuary, 13 samples with age from 1 to 6 years were analyzed by laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS). The results showed that 47 elements were detected in the otolith of L. haematocheila, with the top 10 elements being calcium (Ca), sodium (Na), strontium (Sr), iron (Fe), barium (Ba), magnesium (Mg), manganese (Mn), chromium (Cr), zine (Zn) and lithium (Li). Among all the elements, Ca had the highest concentration and stability, accounting for 98.9% of the total elements. There was no significant difference between male and female in the top ten elements of otolith (P>0.05), indicating the same migratory history between them. The ratio of Sr and Ca content in the core area of otolith indicated that the spawning and hatching habitats of this species were located in the fresh and brackish water area in the intertidal zone of the Yangtze Estuary. Our results would provide basic data and reference for the reconstruction of habitat biographical history of L. haematocheila in the Yangtze Estuary.

Key words: Liza haematocheila, otolith microchemistry, habitat, Yangtze Estuary.

赵峰, 纪严, 杨刚, 王妤, 张涛, 庄平. 长江口近岸水域鮻耳石的元素组成[J]. 生态学杂志, 2020, 39(9): 3043-3047.

ZHAO Feng, JI Yan, YANG Gang, WANG Yu, ZHANG Tao, ZHUANG Ping. Element composition in the otolith of Liza haematocheila from the nearshore waters of the Yangtze Estuary.[J]. Chinese Journal of Ecology, 2020, 39(9): 3043-3047.

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长江口近岸水域鮻耳石的元素组成

Element composition in the otolith of Liza haematocheila from the nearshore waters of the Yangtze Estuary.

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