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Evidence for phosphorus limitation in carbonate sediments of the seagrass Syringodium filiforme

Authors
Publisher
Elsevier
Publication Date
Keywords
  • Seagrasses
  • Plant Nutrients
  • Geochemistry
  • Phosphorus
Disciplines
  • Chemistry
  • Earth Science
  • Ecology

Abstract

The seagrass Syringodium filiforme was examined in an ecological analysis of plant nutrient requirements and nutrient resource availability. Assessment of the sediment geochemistry in a San Salvador Island seagrass bed indicated that phosphorus was not readily accessible to the plants. Ammonium regeneration in the fine-grained carbonate sediments was high, and interstitial concentrations averaged ca. 100 μM while phosphate replenishment to interstitial water was low, and concentrations were generally less than 2 μM.

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