Impact Assessment
Online ISSN : 2424-2268
Print ISSN : 1348-1819
Volume 15 , Issue 1
Showing 1-20 articles out of 20 articles from the selected issue
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Original Paper
  • Akira Tanaka, Ryo Shirasaka
    2017 Volume 15 Issue 1 Pages 61-67
    Published: February 20, 2017
    Released: July 01, 2017

    To identify possibility of biodiversity banking in Japan, we researched banking systems in Germany where the system is very active other than USA. According to results, we found three points which would accelerate introduction of the system into Japan. First point is that “compensation,” as the last resort in mitigation hierarchy, can be paid by money. Second point is that majority of banks are operated by local governments. These points are similar to in-lieu fee program in USA. Third point is that simple quantitative evaluation methods are used to assess “no net loss.” Although it is not appropriate to assess impacts only by vegetation in Japan where habitats are fragmented, simplicity and adaptability will be important.

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  • Case Study of Nairobi Urban Development Master Plan Study in the Republic of Kenya.
    Takanori Hayashida
    2017 Volume 15 Issue 1 Pages 68-76
    Published: February 20, 2017
    Released: July 01, 2017

    Intensive participatory and “consensus-based” Strategic Environmental Assessment Framework is formulated, and then, applied for a JICA-funded “Project on Integrated Urban Development Master Plan (MP) for the City of Nairobi in the Republic of Kenya”. Approximately 100 stakeholder meetings are conducted across Nairobi region, and a broad consensus of the proposed urban development MP is established through a series of discussions held at each stakeholder meeting, in association with the development of the website as well as hot lines, established for the proposed MP development project.

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  • Takao Shima, Kazuyuki Hasegawa, Megumi Shiokari, Motonobu Imasato
    2017 Volume 15 Issue 1 Pages 77-83
    Published: February 20, 2017
    Released: July 01, 2017

    The effect of low-frequency noise on the feeding and growth of 0+ year red sea bream Pagrus major was examined. Four groups (50 fish/group) of fish were reared in separate 600 L circular tanks and fed using self-feeders for 55 days. During day 20 to day 38, each group was exposed to one of four different sound conditions (100 Hz pure tone emitted from underwater speaker system at output sound pressure levels of 100, 120 and 140 dB re 1 μPa @1 m, or ambient noise only). Low-frequency noise exposure did not affect feeding rhythm, feed intake and growth performance. However, 140 dB group fish showed strong startle response at onset of low-frequency noise exposure, and did not stay near underwater speaker through out the low-frequency noise exposure period.

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