トミヨ属淡水型のための潜孔付き全面越流型魚道のモニタリング  [in Japanese] Monitoring of Pool and Weir Fishway with Orifices for Freshwater Type of Nine-Spined Stickleback  [in Japanese]

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Abstract

<p>  Two pool and weir fishways with orifices were installed on a trial basis between a spring-fed pond and two agricultural watercourses in Shika, Ishikawa, Japan, where <i>pungitius</i> sp. 1 (nine-spined stickleback) lives. In order to determine the function of fishways installed for migrating nine-spined sticklebacks, fixed net survey in the exit of the fishways and scrape net survey in the entrance of the fishways were conducted. The fixed net survey showed that the total of 6,900 (left fishway: 1,687 ; right fishway: 5,213) nine-spined sticklebacks, including 1,920 immature fish, had passed upstream through the fishways during the period from September 2009 to December 2010. The ascending number of <i>pungitius</i> sp. 1. increased in spring (March-April), early summer (June-July) and fall (September-November). The fish sampling survey showed that nine-spined sticklebacks which were mainly composed of immature fish stagnated in the entrances of fishways during the period of December 2009 to May 2010. The survey results indicated that the fishway had a sufficient function of upstream migration for adult nine-spined stickleback in the reproductive season. </p>

Journal

  • Journal of Rainwater Catchment Systems

    Journal of Rainwater Catchment Systems 20(2), 75-83, 2015

    Japan Rainwater Catchment Systems Association

Codes

  • NII Article ID (NAID)
    130007687940
  • NII NACSIS-CAT ID (NCID)
    AA11657953
  • Text Lang
    JPN
  • ISSN
    1343-8646
  • NDL Article ID
    026091186
  • NDL Call No.
    Z74-B360
  • Data Source
    NDL  J-STAGE 
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