Sedimentary DNA can reveal the past population dynamics of a pelagic copepod
Sedimentary DNA can reveal the past population dynamics of a pelagic copepod
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沉积DNA可以揭示远洋桡足类过去的种群动态
DOI:
10.1111/fwb.14096
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发表时间:
2023
影响因子:
2.7
通讯作者:
Narumi Tsugeki
中科院分区:
文献类型:
--
作者:
Kai Nakane;Xin Liu;Hideyuki Doi;Gael Dur;Michinobu Kuwae;Syuhei Ban;Narumi Tsugeki
Copepods play a key trophic role as secondary producers, transferring primary production to higher trophic levels such as fish. Copepod production contributes significantly to successful fish recruitment. Despite their importance, knowledge of copepod dynamics over several decades remains limited due to the lack of long‐term data series with adequate sampling and analysis. However, an understanding of long‐term copepod dynamics is urgently required to strive toward better management for sustainable aquatic ecosystems and fish recruitment.Sedimentary DNA (sedDNA) has been developing as a useful tool for reconstructing past plankton dynamics. This study evaluates whether sedDNA targeting the pelagic copepod,Eodiaptomus japonicus, in Lake Biwa (Japan) can be an effective tool for elucidating its past population dynamics.We applied a quantitative polymerase chain reaction method targeting the mitochondrial cytochrome c oxidase subunit I gene on two sediment cores and compared the detected sedDNA concentrations with the unique long‐term dataset of demographic traits, biomass, specific growth rate, production, subitaneous eggs, and resting eggs ofE. japonicus.The sedDNA concentration ofE. japonicusrecovered from sediment layers correlated significantly with in situ production, biomass, and production of immediately hatching eggs but not with resting eggs or specific growth rate. Our study provides evidence for the effective use of sedDNA as a tracking tool for assessing past copepod production dynamics.
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影响因子:
3.1
作者:
Liu Xin;Ban Syuhei;Beyrend Delphine;Dur Gael;Kuwae Michinobu;Makino Wataru;Urabe Jotaro
通讯作者:
Urabe Jotaro
影响因子:
1.6
作者:
Narumi Tsugeki;M. Honjo;Michinobu Kuwae
通讯作者:
Michinobu Kuwae
影响因子:
56.9
作者:
A. Motulsky
通讯作者:
A. Motulsky
DOI:
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发表时间:
2015
期刊:
影响因子:
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作者:
Xin Liu;D. Beyrend;G. Dur;S. Ban
通讯作者:
S. Ban
DOI:
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发表时间:
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期刊:
影响因子:
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作者:
通讯作者:
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