Identification of Stocked Muskellunge and Potential for Distinguishing Hatchery-Origin and Wild Fish Using Pelvic Fin Ray Microchemistry
Identification of Stocked Muskellunge and Potential for Distinguishing Hatchery-Origin and Wild Fish Using Pelvic Fin Ray Microchemistry
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放养的麝香鱼的鉴定以及利用腹鳍射线微化学区分孵化场来源和野生鱼类的潜力
DOI：
10.1111/fme.12081
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发表时间：
2014
影响因子：
2
通讯作者：
G. Whitledge
中科院分区：
文献类型：
--
作者：
N. Rude;Kurt T. Smith;G. Whitledge
本文评价了用腹鳍射线微化学方法鉴别马斯基龙的有效性，并对沿着鉴别自然繁殖鱼类的潜力进行了评价。鱼和水的样品，从一个孵化场和7个湖泊的自然差异，水锶：钙，以确定是否特定位置的环境签名记录在切片muskellunge腹鳍射线，包括已知的环境历史的鱼。水和鳍射线Sr：Ca有很强的相关性。六湖在伊利诺伊州拥有Sr：Ca签名，是不同的孵化场muskellunge提出，导致在Sr：Ca跨节鳍条放养的鱼明显的变化。孵化场和湖泊特定的Sr：Ca签名是稳定的跨年。十六个19个人的鱼已知已被放养的基础上植入的PIT标签放养被正确地确定为孵化场的起源鱼使用鳍射线核心Sr：Ca。结果还表明，孵化Sr：Ca信号可以保留至少7年的鳍条放养的鱼。鳍射线微化学是一种非致命的方法，用于确定muskellunge的环境历史，可用于评估湖泊和河流系统的运动模式和muskellunge种群的自然繁殖和放养的支持程度。
The effectiveness of pelvic fin ray microchemistry of muskellunge, Esox masquinongy Mitchill, to identify stocked individuals along with the potential to identify naturally reproduced fish were evaluated. Fish and water samples were obtained from one hatchery and seven lakes with natural differences in water Sr:Ca to determine whether location-specific environmental signatures were recorded in sectioned muskellunge pelvic fin rays, including fish of known environmental history. Water and fin ray Sr:Ca were strongly correlated. Six lakes in Illinois possessed Sr:Ca signatures that were distinct from the hatchery where muskellunge were raised, resulting in pronounced shifts in Sr:Ca across sectioned fin rays of stocked fish. Hatchery and lake-specific Sr:Ca signatures were stable across years. Sixteen of 19 individual fish known to have been stocked based on PIT tags implanted at stocking were correctly identified as hatchery-origin fish using fin ray core Sr:Ca. Results also indicated that the hatchery Sr:Ca signal can be retained for at least 7 years in fin rays of stocked fish. Fin ray microchemistry is a non-lethal approach for determining environmental history of muskellunge that could be used to assess movement patterns in lake and river systems and the degree to which muskellunge populations are supported by natural reproduction and stocking.