Relationships Between Submarine Groundwater Discharge and Coastal Fisheries as a Water-Food Nexus

  • Jun Shoji
  • Osamu Tominaga
Part of the Global Environmental Studies book series (GENVST)


We introduced the results of investigations conducted in Japan (Yamagata, Fukui, Hiroshima and Oita Prefectures) and discussed the contribution of SGD to the production of fishery resources and their prey (meiobenthic communities). Our recent surveys provided evidence of the contribution of SGD to the production of fishes and their prey. These results strongly support the hypothesis that the contribution of nutrients from SGD to the coastal fishery resources production is much higher than previously suggested. The negative ecological impacts of SGD on meiofaunal abundance were confirmed at the high seepage areas of Kamaiso where the small spatial scale presented strong heterogeneity in SGD environmental conditions. However, the meiofaunal abundance was not low at the low seepage area located slightly apart from the high seepage area. Therefore, the effect of SGD on meiofaunal communities could be limited. However, the environmental heterogeneity significantly enhanced the conservation of the meiofaunal diversity. Thus, SGD determined the property of benthic communities.


Submarine ground water Fishery resources Meiofauna Production 


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© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  1. 1.Costal EcologyHiroshima UniversityHigashi-hiroshimaJapan
  2. 2.Marine Science and TechnologyFukui Prefectural UniversityObamaJapan

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