用于检测海洋物种的 eDNA 动态生物物理建模的当前趋势

Q1 Agricultural and Biological Sciences Environmental DNA Pub Date : 2024-10-26 DOI:10.1002/edn3.70021
Ane Pastor Rollan, Craig D. H. Sherman, Morgan R. Ellis, Kate Tuohey, Ross Vennell, Cian Foster-Thorpe, Eric A. Treml
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引用次数: 0

摘要

海洋有害生物的引入不断发生并加速增加,威胁着海洋环境和蓝色经济。环境 DNA(eDNA)是通过检测当地环境中脱落的遗传物质来确定本地和非本地物种是否存在的一种工具。尽管 eDNA 方法在过去十年中得到了广泛应用,但在影响检测概率的因素以及如何优化水生环境中的 eDNA 采样方面,基本知识仍然存在差距。在此,我们将 eDNA 研究分为四大研究主题:eDNA 浓度(脱落和衰变)、迁移(平流和混合)、采样设计策略以及这些动态的建模。我们回顾了每个主题的当前发展和挑战,重点是实地取样策略和生物物理模型的使用,以了解复杂水生环境中 eDNA 的运动模型。然后,我们介绍了来自一个大河湾的三个建模案例研究,在这些案例研究中,我们(1)量化了 eDNA 扩散的空间和时间变异性,(2)使用生物物理模型为实地采样策略提供信息,(3)展示了一种回溯建模技术,以确定现有采样(监测)点的上游 DNA 来源。最后,我们提出了有助于改进未来 eDNA 研究的具体建议。这项工作强调了如何应用生物物理模型来改进早期检测,并为应对和管理决策提供信息。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Current Trends in Biophysical Modeling of eDNA Dynamics for the Detection of Marine Species

Marine pest introductions continue to occur and increase at accelerated rates, threatening the marine environment and blue economy. Environmental DNA (eDNA) is a tool for determining the presence of both indigenous and nonindigenous species, via the detection of genetic material that is shed into the local environment. Although eDNA approaches have gained widespread adoption in the last decade, fundamental knowledge gaps remain around factors that can influence the probability of detection, and how to optimize eDNA sampling in aquatic environments. Here, we partition eDNA research into four major research themes: eDNA concentration (shedding and decay), transport (advection and mixing), sampling design strategies, and the modeling of these dynamics. We review current developments and challenges in each theme with a focus on field sampling strategies and the use of biophysical models for understanding the movement of modeling eDNA in complex aquatic environments. We then introduce three modeling case studies from a large embayment where we (1) quantify the spatial and temporal variability of eDNA dispersion, (2) use biophysical models to inform a field sampling strategy, and (3) demonstrate a backtracking modeling technique to identify upstream DNA sources to an existing sample (monitoring) site. We conclude by identifying specific recommendations to help improve future eDNA studies. This work highlights how biophysical models can be applied to improve early detection and informing response and management decisions.

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来源期刊
Environmental DNA
Environmental DNA Agricultural and Biological Sciences-Ecology, Evolution, Behavior and Systematics
CiteScore
11.00
自引率
0.00%
发文量
99
审稿时长
16 weeks
期刊最新文献
Issue Information Bottom Trawling and Multi-Marker eDNA Metabarcoding Surveys Reveal Highly Diverse Vertebrate and Crustacean Communities: A Case Study in an Urbanized Subtropical Estuary Evaluation of a Nanopore Sequencing Strategy on Bacterial Communities From Marine Sediments Current Trends in Biophysical Modeling of eDNA Dynamics for the Detection of Marine Species Validation of Environmental DNA for Estimating Proportional and Absolute Biomass
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