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Significance of carbon dioxide and bicarbonate-carbon uptake in marine biomass production
| Title: | Significance of carbon dioxide and bicarbonate-carbon uptake in marine biomass production. |
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| Name(s): |
Ryther, John H. DeBusk, T. A. Harbor Branch Oceanographic Institute |
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| Type of Resource: | text | |
| Genre: | Article | |
| Date Issued: | 1982 | |
| Publisher: | Institute of Gas Technology. | |
| Place of Publication: | Chicago | |
| Physical Form: | ||
| Extent: | 15 p. | |
| Language(s): | English | |
| Identifier: | FA00007054 (IID) | |
| Note(s): |
The red alga Gracilaria tikvahiae is capable of extremely high rates of biomass production (> 20 g vs/m².day or 74 mt vs/ha.yr), but such yields require rapid seawater exchange rates (25 culture volumes/day) that would be uneconomical and nonenergy cost-effective in a land-based or coastal energy farm based on pumped water. The requirements for high seawater exchange reflect C0₂ limitation which is exacerbated in species such as Gracilaria that cannot utilize bicarbonate as a substrate for photosynthesis, since free C0₂ is almost unavailable at the high pH levels (> 9.0) attained in dense cultures at low exchange rates. Bicarbonate users, such as Ulva are better adapted to growth under such relatively stagnant conditions where ƸC0₂ is not rate-limiting. At extremely low seawater exchange rates (< 1 exchange/day) even ƸC0₂ may become growth limiting and high yields depend upon CO₂ enrichment. Florida Atlantic University. Harbor Branch Oceanographic Institute contribution 254 This manuscript is an author version with the final publication available and may be cited as: Ryther, J. H. and DeBusk, T. A. (1982). Significance of carbon dioxide and bicarbonate-carbon uptake in marine biomass production. In D. L. Klass (Chair), Energy from biomass and wastes VI. Symposium papers presented January 25-29, 1982, Lake Buena Vista, Florida. |
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| Subject(s): |
Biomass Carbon dioxide Bicarbonate Gracilaria Red algae |
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| Persistent Link to This Record: | http://purl.flvc.org/fau/fd/FA00007054 | |
| Host Institution: | FAU |
