Evaluation for the effect of non-stationary nutrient transport on the coastal seaweed cultivation in western Japan

Mitsuyo Saito, S. Onodera, G. Hidaka, M. Tokumasu

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In order to evaluate the effects of non-stationary nutrient transport on the coastal seaweed cultivation, variations of the seaweed yield, nutrient condition of seawater, rainfall and nutrient transport from the river, observed over the last 40 years were examined to characterize the long-term trends and the influencing factors on the variation of seaweed yield. The results show that seaweed yield increased until 1973, then decreased in recent years. The recent condition of nutrients in seawater is relatively severe for seaweed farming. The results suggest that river-derived nutrient supply to coastal area will decrease further by the decrease of river discharge. For the future prospect, it is important to evaluate the variation of other nutrient supply such as from groundwater, offshore or bottom sediment as well as river discharge.

Original languageEnglish
Title of host publicationIAHS-AISH Proceedings and Reports
PublisherCopernicus GmbH
Pages149-155
Number of pages7
Volume371
DOIs
Publication statusPublished - 2015
EventHS02 � Hydrologic Non-Stationarity and Extrapolating Models to Predict the Future in the 2015 IUGG General Assembly - Prague, Czech Republic
Duration: Jun 22 2015Jul 2 2015

Other

OtherHS02 � Hydrologic Non-Stationarity and Extrapolating Models to Predict the Future in the 2015 IUGG General Assembly
CountryCzech Republic
CityPrague
Period6/22/157/2/15

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

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    Saito, M., Onodera, S., Hidaka, G., & Tokumasu, M. (2015). Evaluation for the effect of non-stationary nutrient transport on the coastal seaweed cultivation in western Japan. In IAHS-AISH Proceedings and Reports (Vol. 371, pp. 149-155). Copernicus GmbH. https://doi.org/10.5194/piahs-371-149-2015