The Validation of the Tidal Flats Ecosystem Model Using by Mesocosm Data and the Nitrogen Cycle Analysis of Isshiki Tidal Flat in Mikawa Bay

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  • メソコスムによる干潟生態系モデルの検証と三河湾一色干潟域の物質循環解析
  • メソコスム ニ ヨル ヒガタ セイタイケイ モデル ノ ケンショウ ト ミカワワン イッシキ ヒガタイキ ノ ブッシツ ジュンカン カイセキ

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Abstract

It is known that the short-necked clam play an important role on the matter cycle in the tidal flats in Mikawa Bay. Therefore, even when modeling suspension feeder that the short-necked clam represented was described in detail based on the indoor experiment results and applied to some tidal flats, excellent reproducibility was obtained. However, we could not obtain the good reproducibility about the Mesocosm data set reproduced by an existing model and the parameter set applied to the tidal flats. Therefore, it verifies and accuracy of an existing tidal flat ecosystem model has improved by using the continuous data set obtained with Mesocosm, and the in existence data set of Isshiki tidal flat in Mikawa Bay calculated in the past was calculated again, and both were compared. In the results of the calculation by the modified model, a higher primary production and a faster matter cycle in the tidal flats are expressible compared with a past model, and, the characteristic of the dynamic matter cycle in the tidal flats is being reproduced. It is become clear that the ecosystem model and the parameter to who improved it by using the data of Mesocosm being able to reproduce the biomass of a different annual in a real sea area, and being able to do the nitrogen circulation analysis.

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