Stable isotope‐based location in a shelf sea setting: accuracy and precision are comparable to light‐based location methods
Stable isotope‐based location in a shelf sea setting: accuracy and precision are comparable to light‐based location methods
复制标题
陆架海环境中基于稳定同位素的定位：准确性和精度与基于光的定位方法相当
DOI：
10.1111/2041-210x.12651
复制
发表时间：
2017
影响因子：
6.6
通讯作者：
Katie St. John Glew
中科院分区：
文献类型：
--
作者：
C. Trueman;K. MacKenzie;Katie St. John Glew
追溯确定海洋动物的位置将有助于对迁徙、连通性和食物来源的调查。跨陆架海域初级生产中碳和氮同位素的可预测空间变化为稳定的基于同位素的定位提供了基础。在这里，我们评估了通过基于膳食同位素的定位方法可以获得的准确性和精密度。我们从水母组织中建立等值线，并使用这些等值线来指定固定和已知个体位置的扇贝，以及北海众所周知的种群水平分布的鲱鱼。北海基于追溯同位素的定位的准确度和精确度与基于光的定位装置相似，75%的扇贝被正确地分配到代表北海约30%的区域，平均线性误差约为102公里。对另一种迁徙物种(鲱鱼)应用分配方法所产生的生态现实分配与渔业调查数据一致。基于碳和氮等饮食同位素的定位方法可以恢复吸收到组织中的营养物质的空间来源，如果试验动物或其猎物是高度迁徙的，这可能不直接对应于物理位置。稳定的基于同位素的定位可以应用于任何海洋摄食生物或衍生食品，但任何指定区域的生态意义将更难解释为大型、高营养水平、迁徙动物和相对较慢的同位素同化速率。
Retrospective determination of location for marine animals would facilitate investigations of migration, connectivity and food provenance. Predictable spatial variations in carbon and nitrogen isotopes in primary production across shelf seas provide a basis for stable isotope‐based location. Here, we assess the accuracy and precision that can be obtained through dietary‐isotope‐based location methods. We build isoscapes from jellyfish tissues and use these to assign scallops of fixed and known individual location, and herring with well‐understood population‐level distributions in the North Sea. Accuracy and precision for retrospective isotope‐based location in the North Sea were of a similar order to light‐based location devices, with 75% of individual scallops assigned correctly to areas representing c. 30% of the North Sea, with a mean linear error on the order of 102 km. Applying assignment methods to an alternative migratory species (herring) resulted in ecologically realistic assignments consistent with fisheries survey data. Location methods based on dietary isotopes such as carbon and nitrogen recover the spatial origin of nutrients assimilated into tissues, and this may not correspond directly to the physical location if either the test animal or its prey is highly migratory. Stable isotope‐based location can be applied to any marine‐feeding organism or derived food product, but the ecological meaning of any assigned area will be more difficult to interpret for large, high trophic level, migratory animals with relatively slow isotopic assimilation rates.
地质同位素在生态学中的应用
DOI：
--
发表时间：
2009
期刊：
影响因子：
--
作者：
Mizobata;K.;K. Shimada;R. Woodgate;S.-I. Saitoh and J. Wang;中野孝教
通讯作者：
中野孝教
影响因子：
64.8
作者：
Block, B. A.;Jonsen, I. D.;Costa, D. P.
通讯作者：
Costa, D. P.
使用硅稳定同位素作为标记进行过程监控
DOI：
--
发表时间：
2009
期刊：
影响因子：
--
作者：
佐竹正延;他;宮本聡;Todd Tilma;齊藤志郎;Y.Yamamoto;Simon Devitt;S.Clark;H.Nakano;A.Trisetyarso;K.Kakuyanagi;M.D.Fraser;N.Y.Kim;Y.Yamamoto;T.Byrnes;K.De Greve;S.Clark;Y.Yamamoto;S.Clark;M.R.Rahman;W.Akhta;H.Tezuka;石川豊史;K.M.Itoh
通讯作者：
K.M.Itoh