Warm water temperatures (≥ 20oC) as a threat to adult Pacific lamprey: Implications of climate change

IF 0.9 4区 环境科学与生态学 Q4 BIODIVERSITY CONSERVATION
Benjamin J. Clemens
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引用次数: 3

Abstract

Interest in the effects of warmwater temperatures (≥ 20oC) on fishes has grown as biologists attempt to understand the impacts of climate change on native species. Clemens et al. (2016) hypothesized that rivers displaying warmwater temperatures and low river flows (such as may become more common with climate change in North America) may select against Pacific lamprey Entosphenus tridentatus migrating and spawning in the upper reaches of some watersheds. I provide new information from different locations that supports Clemens et al.’s hypothesis, including observations of pre-spawn mortalities of Pacific lamprey during a recent heat wave, when daily water temperatures averaged 26.6oC (range: 20.8o – 30.6oC) and additional data from the literature. These observations and data suggest that the continued warming and slowing of rivers pose a threat to Pacific lamprey in some Oregon (USA) rivers, which appears to agree with other research that suggests that lampreys will lose habitats in lower latitudes as climate change progresses.
温水温度(≥20℃)对成年太平洋七鳃鳗的威胁:气候变化的影响
随着生物学家试图了解气候变化对本地物种的影响,人们对温水温度(≥20℃)对鱼类的影响越来越感兴趣。Clemens等人(2016)假设,水温较高、流量较低的河流(如北美气候变化可能变得更常见)可能会阻碍太平洋七鳃鳗(Entosphenus tridentatus)在一些流域上游的迁徙和产卵。我提供了来自不同地点的新信息,支持Clemens等人的假设,包括在最近的热浪中对太平洋七鳃鳗产卵前死亡率的观察,当时的日平均水温为26.6摄氏度(范围:20.80 - 30.6摄氏度),以及来自文献的其他数据。这些观察和数据表明,河流的持续变暖和变慢对俄勒冈州(美国)一些河流中的太平洋七鳃鳗构成了威胁,这似乎与其他研究一致,即随着气候变化的进展,七鳃鳗将在低纬度地区失去栖息地。
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来源期刊
Journal of Fish and Wildlife Management
Journal of Fish and Wildlife Management BIODIVERSITY CONSERVATION-ECOLOGY
CiteScore
1.60
自引率
0.00%
发文量
43
审稿时长
>12 weeks
期刊介绍: Journal of Fish and Wildlife Management encourages submission of original, high quality, English-language scientific papers on the practical application and integration of science to conservation and management of native North American fish, wildlife, plants and their habitats in the following categories: Articles, Notes, Surveys and Issues and Perspectives. Papers that do not relate directly to native North American fish, wildlife plants or their habitats may be considered if they highlight species that are closely related to, or conservation issues that are germane to, those in North America.
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