naa a22 4500 510762654 CHVBK 20180411083145.0 cr unu---uuuuu 180411e20130101xx s 000 0 eng 10.1007/s11355-011-0171-2 doi (NATIONALLICENCE)springer-10.1007/s11355-011-0171-2 The effectiveness of delineating ecoregions in the Kyushu region of Japan to establish environmental indicators [Elektronische Daten] [Rei Itsukushima, Yukihiro Shimatani, Yôichi Kawaguchi] Throughout Japan, numerous restoration projects and efforts to conserve the river environment are underway. However, in spite of such efforts, effective measures to conserve the river ecosystem or post-evaluation of restoration projects remain insufficient due to a lack of environmental indicators. In many European countries and the United States, a number of biological indicators have been developed and adapted. However, it appears to be difficult to directly apply these indicators to Japan, because its biota is finely classified according to its many islands and peninsulas. The ultimate goal of this study is to comprehensively evaluate indicators of aquatic biodiversity from both physical and biological aspects. We divided the Kyushu region in Japan into several ecoregions as a preliminary step to establish an indicator. We delineated the ecoregions of the Kyushu region using the fish fauna data of 21 rivers within the Kyushu region. Presence-absence (0/1) data for each fish species were used to run a two-way indicator species analysis (TWINSPAN analysis). As a result, the Kyushu region was divided into four ecoregions (A: northwest Kyushu, B1: northeast Kyushu, B2: south Kyushu, and C: Amami-Oshima Island). Each ecoregion was characterized by the following fish species: (A) Cyprinidae, in particular Acheilognathinae, is abundant; (B1) Gobiidae is abundant, while Cyprinidae such as Tanakia limbata (not confirmed in B2) are also present; (B2) Gobiidae is abundant, while Rhingobius sp. DA and Rhingobius sp. CO (not confirmed in B1) are present. These results indicate that the fish fauna of the Kyushu region is finely delineated, and that an assessment standard for biological integrity should be established, based on differences in fish fauna. International Consortium of Landscape and Ecological Engineering and Springer, 2011 Biological integrity nationallicence TWINSPAN nationallicence Segment nationallicence National Census on River Environments nationallicence Fish fauna nationallicence Kyushu Island nationallicence Itsukushima Rei Department of Urban and Environmental Engineering, Kyushu University, 744 Motooka, Nishi-ku, 819-0395, Fukuoka, Japan aut Shimatani Yukihiro Department of Urban and Environmental Engineering, Kyushu University, 744 Motooka, Nishi-ku, 819-0395, Fukuoka, Japan aut Kawaguchi Yôichi Institute of Technology and Science, The University of Tokushima, 2-1 Minami-josanjima, 880-8506, Tokushima, Japan aut Landscape and Ecological Engineering Springer Japan 9/1(2013-01-01), 27-46 1860-1871 9:1<27 2013 9 11355 https://doi.org/10.1007/s11355-011-0171-2 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11355-011-0171-2 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Itsukushima Rei Department of Urban and Environmental Engineering, Kyushu University, 744 Motooka, Nishi-ku, 819-0395, Fukuoka, Japan aut NATIONALLICENCE 700 1- Shimatani Yukihiro Department of Urban and Environmental Engineering, Kyushu University, 744 Motooka, Nishi-ku, 819-0395, Fukuoka, Japan aut NATIONALLICENCE 700 1- Kawaguchi Yôichi Institute of Technology and Science, The University of Tokushima, 2-1 Minami-josanjima, 880-8506, Tokushima, Japan aut NATIONALLICENCE 773 0- Landscape and Ecological Engineering Springer Japan 9/1(2013-01-01), 27-46 1860-1871 9:1<27 2013 9 11355 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer