Investigating fishing strategies and habitat differences in late Holocene Oregon Coast sturgeon (Acipenser spp.) through coupled genetic and isotope analyses
Investigating fishing strategies and habitat differences in late Holocene Oregon Coast sturgeon (Acipenser spp.) through coupled genetic and isotope analyses
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DOI：
10.1016/j.qsa.2022.100062
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发表时间：
2022-09
影响因子：
4.5
通讯作者：
Emma A. Elliott Smith;T. Rick;Courtney A. Hofman
中科院分区：
文献类型：
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作者：
Emma A. Elliott Smith;T. Rick;Courtney A. Hofman
了解人们过去捕鱼的栖息地对于评估沿海环境变化与人类行为之间的关系至关重要。 Researchers often use zooarchaeological identification of fishes and modern ecological data to infer the habitats people fished in the past.然而，这些推论假设环境条件随着时间的推移保持稳定，并且可能会受到考古标本（物种与属或科）识别精确度问题的阻碍。 Here, we integrate genetic and bulk tissue stable isotope data to investigate a late Holocene sturgeon fishery in northern Oregon.古代 DNA 分析表明，人们捕捞的绿鲟和白鲟（Acipenser medirostris 和 Acipenser transmontanus）的数量相当。对这些相同骨骼的稳定同位素分析记录了每个物种的不同同位素值，与物种特定的栖息地偏好相关。这些发现凸显了配对同位素和遗传数据在阐明人类捕捞策略和环境变化方面的价值，并为现代渔业提供基线生态数据。
Understanding the habitats people were fishing in the past is central to evaluating the relationship between coastal environmental change and human behavior. Researchers often use zooarchaeological identification of fishes and modern ecological data to infer the habitats people fished in the past. However, these inferences assume stable environmental conditions through time and can be hindered by precision issues in identification of archaeological specimens (species vs. genus or family). Here, we integrate genetic and bulk tissue stable isotope data to investigate a late Holocene sturgeon fishery in northern Oregon. Ancient DNA analysis indicated that people were fishing for both green and white sturgeon (Acipenser medirostrisandAcipenser transmontanus) in comparable numbers. Stable isotope analyses of these same bones documented distinct isotope values for each species, correlating with species-specific habitat preferences. These findings highlight the value of paired isotope and genetic data to elucidate human fishing strategies and environmental change and provide baseline ecological data for modern fisheries.