A Mesoscale Iron Enrichment in the Western Subarctic Pacific Induces a Large Centric Diatom Bloom-Reference-Cited by-同舟云学术

A Mesoscale Iron Enrichment in the Western Subarctic Pacific Induces a Large Centric Diatom Bloom

Published:2003-05-09 Issue:5621 Volume:300 Page:958-961
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Tsuda Atsushi¹²³⁴⁵,Takeda Shigenobu¹²³⁴⁵,Saito Hiroaki¹²³⁴⁵,Nishioka Jun¹²³⁴⁵,Nojiri Yukihiro¹²³⁴⁵,Kudo Isao¹²³⁴⁵,Kiyosawa Hiroshi¹²³⁴⁵,Shiomoto Akihiro¹²³⁴⁵,Imai Keiri¹²³⁴⁵,Ono Tsuneo¹²³⁴⁵,Shimamoto Akifumi¹²³⁴⁵,Tsumune Daisuke¹²³⁴⁵,Yoshimura Takeshi¹²³⁴⁵,Aono Tatsuo¹²³⁴⁵,Hinuma Akira¹²³⁴⁵,Kinugasa Masatoshi¹²³⁴⁵,Suzuki Koji¹²³⁴⁵,Sohrin Yoshiki¹²³⁴⁵,Noiri Yoshifumi¹²³⁴⁵,Tani Heihachiro¹²³⁴⁵,Deguchi Yuji¹²³⁴⁵,Tsurushima Nobuo¹²³⁴⁵,Ogawa Hiroshi¹²³⁴⁵,Fukami Kimio¹²³⁴⁵,Kuma Kenshi¹²³⁴⁵,Saino Toshiro¹²³⁴⁵

Affiliation:

1. Hokkaido National Research Institute, Kushiro, Hokkaido 085-0802, Japan.

2. Department of Aquatic Bioscience, University of Tokyo, Bunkyo, Tokyo 113-8657, Japan.

3. Tohoku National Fisheries Research Institute, Shiogama, Miyagi 985-0001, Japan.

4. Central Research Institute of Electric Power Industry, Abiko, Chiba 270-1194, Japan.

5. National Institute for Environmental Studies, Tsukuba, Ibaraki 305-8506, Japan.

Abstract

We have performed an in situ test of the iron limitation hypothesis in the subarctic North Pacific Ocean. A single enrichment of dissolved iron caused a large increase in phytoplankton standing stock and decreases in macronutrients and dissolved carbon dioxide. The dominant phytoplankton species shifted after the iron addition from pennate diatoms to a centric diatom, Chaetoceros debilis , that showed a very high growth rate, 2.6 doublings per day. We conclude that the bioavailability of iron regulates the magnitude of the phytoplankton biomass and the key phytoplankton species that determine the biogeochemical sensitivity to iron supply of high-nitrate, low-chlorophyll waters.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference24 articles.

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