Evaluation of riverine DIN in the nori <i>Pyropia</i> cultivated in coastal sea areas using nitrogen stable isotopes

• TAKAGI SHUZO

  Okayama Prefectural Technology Center for Agriculture, Forestry and Fisheries, Research Institute for Fisheries Science

• SHIMIZU YASUKO

  Okayama Prefectural Technology Center for Agriculture, Forestry and Fisheries, Research Institute for Fisheries Science

• KUSAKA KOJI

  Okayama Prefectural Technology Center for Agriculture, Forestry and Fisheries, Research Institute for Fisheries Science

• KOBAYASHI SHIHO

  Graduate School of Agriculture, Kyoto University

• FUJIWARA TATEKI

  Graduate School of Agriculture, Kyoto University

Bibliographic Information

Other Title

• 窒素安定同位体比を用いた河川からノリ漁場への栄養塩供給の評価
• チッソ アンテイ ドウイタイヒ オ モチイタ カセン カラ ノリ ギョジョウ エ ノ エイヨウエン キョウキュウ ノ ヒョウカ
• Evaluation of riverine DIN in the nori Pyropia cultivated in coastal sea areas using nitrogen stable isotopes

Abstract

  To clarify the influence of nutrient supply from rivers on nori (Pyropia), we investigated the distributions and variance of nitrogen stable isotope (δ¹⁵N) in nori thalli in the Bisan Strait in the eastern part of the Seto Inland Sea. The δ¹⁵N value of nori cultured in low salinity areas was 7.7±0.1‰. On the other hand, the δ¹⁵N value of discolored nori collected in high salinity areas was 11.1±0.1‰. Using these results, the contribution ratios of riverine nitrogen to nori were estimated. The δ¹⁵N value in nori transplanted to an estuarine zone far from the river mouth decreased to the same level as the nori originally growing until 7 days. δ¹⁵N reflected the influence of nitrogen supply from rivers more quickly than the change of color.<br>

Journal

• NIPPON SUISAN GAKKAISHI

  NIPPON SUISAN GAKKAISHI 79 (6), 1002-1008, 2013

  The Japanese Society of Fisheries Science

Keywords

• δ¹⁵N

Details

• CRID: 1390001206417832064
• NII Article ID: 10031196759
• NII Book ID: AN00193422
• DOI: 10.2331/suisan.79.1002
• COI: 1:CAS:528:DC%2BC2cXptVygsw%3D%3D
• ISSN: 1349998X
• ISSN: 00215392
• NDL BIB ID: 025023520
• Web Site: https://agriknowledge.affrc.go.jp/RN/2030870388
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I025023520
• Text Lang: ja
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed