caa a22 4500 445858044 CHVBK 20180317145434.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10592-011-0218-9 doi (NATIONALLICENCE)springer-10.1007/s10592-011-0218-9 Recent microscale disturbance of gene flow in threatened fluvial lamprey, Lethenteron sp. N, living in a paddy water system [Elektronische Daten] [Yuji Yamazaki, Ayumi Yamano, Kaori Oura] We investigated whether the installation of sluice gates hindered gene flow among subpopulations of a fluvial lamprey, Lethenteron sp. N, inhabiting a paddy water system. Individuals were collected from three study sites and were genotyped at six polymorphic microsatellite loci. Our calculations indicated that, historically, gene flow among the subpopulations was frequent and bidirectional; however, contemporary gene flow was unidirectional (upstream to downstream). This indicates that the sluice gates have obstructed the movement of individuals between different subpopulations. Despite this, genetic diversity was similar across all three study sites. Thus, while the fluvial lamprey population does not appear to be in danger of losing genetic diversity, continued isolation is likely to affect gene flow by reducing migration between subpopulations. We recommend a management scheme wherein the sluice gates are periodically opened in order to facilitate migration. Since lampreys are an important part of the ecosystem, this should also help maintain the health of the paddy environment in general. Springer Science+Business Media B.V., 2011 Gene flow nationallicence Habitat fragmentation nationallicence Paddy ecosystem nationallicence Conservation nationallicence Lamprey nationallicence Yamazaki Yuji Graduate School of Science and Engineering for Research, University of Toyama, 930-8555, Toyama, Japan aut Yamano Ayumi Graduate School of Science and Engineering for Research, University of Toyama, 930-8555, Toyama, Japan aut Oura Kaori Graduate School of Science and Engineering for Research, University of Toyama, 930-8555, Toyama, Japan aut Conservation Genetics Springer Netherlands 12/5(2011-10-01), 1373-1377 1566-0621 12:5<1373 2011 12 10592 https://doi.org/10.1007/s10592-011-0218-9 text/html Onlinezugriff via DOI 1 brief-communication jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10592-011-0218-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Yamazaki Yuji Graduate School of Science and Engineering for Research, University of Toyama, 930-8555, Toyama, Japan aut NATIONALLICENCE 700 1- Yamano Ayumi Graduate School of Science and Engineering for Research, University of Toyama, 930-8555, Toyama, Japan aut NATIONALLICENCE 700 1- Oura Kaori Graduate School of Science and Engineering for Research, University of Toyama, 930-8555, Toyama, Japan aut NATIONALLICENCE 773 0- Conservation Genetics Springer Netherlands 12/5(2011-10-01), 1373-1377 1566-0621 12:5<1373 2011 12 10592 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer