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Release of dissolved organic matter by some marine macrophytes

โœ Scribed by M. Brylinsky

Publisher
Springer-Verlag
Year
1977
Tongue
English
Weight
742 KB
Volume
39
Category
Article
ISSN
0025-3162

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โœฆ Synopsis

The amount of photoassimilated carbon released as dissolved organic carbon was investigated for 5 species of benthic marine macrophytes (Thalassia testudinum, Diplanthera wrightii, Acanthophora spicifera, Chondria dasyphylla, and Dictyota dichotoma) and I species of pelagic marine macrophyte (Sargassum natans). Release rates ranged between 0.006 and 0.053 mg C g-1 h-1. Percent release values ranged from 1.1 to 3.8%. Spermatophytes had slightly lower percent release values than algae. Investigations performed on the ability of release products to be utilized by heterotrophic organisms showed that 20 to 30% of the released organic carbon was assimilated within a 2-h period.

๐Ÿ“œ SIMILAR VOLUMES

Release of photoassimilated carbon as di
Release of photoassimilated carbon as dissolved organic matter by marine phytoplankton
โœ T. Berman; O. Holm-Hansen ๐Ÿ“‚ Article ๐Ÿ“… 1974 ๐Ÿ› Springer-Verlag ๐ŸŒ English โš– 553 KB

The release of photoassimilated carbon as dissolved organic matter was studied in situ in oligotrophic and eutrophic marine waters and in axenic laboratory cultures. Percentage extracellular release (PER), integrated for the trophogenic zone, ranged from 6 to 12% in eutrophic waters and from 17 to 2