Cultivation of Macroscopic Marine Algae and Freshwater Aquatic Needs. Progress Report, May 1, 1979-December 15, 1979

• Main Author: Ryther, J. H.
• Other Authors: United States. Department of Energy.
• Format: Report
• Language: English
• Published: Woods Hole Oceanographic Institution 1980
• Subjects: Aquatic Organisms; Transpiration; Plants 140504* > Solar Energy Conversion > Biomass Production & Conversion > (-1989); Hydrocarbons; Evaporation; Fluids; Nutrients; Organic Compounds; Seaweeds; Cryogenic Fluids; Recycling; Growth; Phase Transformations; Water Hyacinths; Cultivation Techniques; Alkanes; 09 Biomass Fuels; Comparative Evaluations; Orca
• Online Access: https://doi.org/10.2172/5232560; https://digital.library.unt.edu/ark:/67531/metadc1069904/

Progress for the period May 1979 to December 1979 is reported in the following subject areas: (1) the ORCA clone of the red seaweed Gracilaria tikvakiae has now been grown continuously in tank culture for two years; (2) studies were continued on the culture of freshwater plants such as water hyacinth, pennywort, water lettuce, and duckweed; (3) the loss of water from evapotranspiration of freshwater plants was measured and compared with water loss from evaporation from open water; and (4) experiments were conducted to investigate the possibility of recycling the chemicals left in the solid and liquid residues following anaerobic digestion and methane production as a source of nutrients for new plant production. (ACR)