期刊
FISHERIES RESEARCH
卷 89, 期 2, 页码 104-113出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.fishres.2007.09.020
关键词
stock identity; sampling design; observational studies; sampling logistics; horse mackerel; Trachurus trachurus; genetics
类别
Stock identification research can be classified as an observational study, the main characteristic of sampling being that there is no opportunity to repeat the process under similar conditions. To obtain useful information with this limitation, several considerations can be outlined. Time and space sampling require intensive field work. It is necessary to repeat sampling over time (more than 1 year of sampling) to estimate temporal stability of the investigated patterns. The spawning season should also be considered in the sampling process to assure the homogeneity of spawning populations and identify the spawning grounds. The ideal situation would be to sample the whole species' distribution area making an a priori compromise between the effort and-the biological information to be obtained. Inherent genetic variability of biological material is an important source of ecological variability. Therefore, performing all the different stock identification techniques on the same specimen reduces uncertainty when interpreting the results. The sampling logistics, taking into consideration the requirements of the different techniques applied, is, a key-point in any stock identification project. We also considered the experience within the EU-funded project on horse mackerel stock identification research (HOMSIR), which has provided the chance to apply several techniques that play a key role in stock identification. (C) 2007 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据