Importance of Nutrients(N, P, and NO3+NO2)in Growth of the Surfgrass, Phyllospadix iwatensis Makino
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- Hossain Md. Faruque
- Akkeshi Marine Biological Station, Hokkaido University
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- Mukai Hiroshi
- Akkeshi Marine Biological Station, Hokkaido University
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Abstract: Indoor experimental transplanting of Phyllospadix iwatensis to three aquaria under conditions of 0g(aq-1), 4g(aq-2), and 8g(aq-3)biweekly nutrient enrichment was conducted in order to quantify the role of nutrients in seagrass production. Nutrient concentrations(total N, total P, and NO3+NO2)in overlying sea water, porewater, and sediment were analyzed using standard chemical methods. Seagrass shoot and rhizome production was measured by a thread marking technique. The growth rates of leaf and rhizome were constant throughout the course of the experiment in aq-1, showed an acceleration in aq-2, and attained their highest levels in aq-3 due to the different nutrient conditions. Similarly, shoot density, in florescence production, reproductive effort, leaf area index(LAI), C, N, and P contents, photosynthetic pigment, and biomass were also varied greatly with nutrient level, in all cases with concentrations or rates remaining constant in aq-1, increasing or accelerating in aq-2, and reaching their highest levels in aq-3. These results show that nutrients are a strong factor influencing Phyllospadix iwatensis production.
収録刊行物
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- BENTHOS RESEARCH
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BENTHOS RESEARCH 55 (1), 23-35, 2000
日本ベントス学会
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詳細情報 詳細情報について
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- CRID
- 1390282680457147776
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- NII論文ID
- 130004997531
- 10005102466
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- NII書誌ID
- AN10565057
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- ISSN
- 18838901
- 02894548
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- NDL書誌ID
- 5452048
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可