Showing items related by title, author, creator and subject.

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  Book

  The farming of the seaweed Kappaphycus 

  AQ Hurtado & RF Agbayani - 2000 - Aquaculture Department, Southeast Asian Fisheries Development Center
  Series: Aquaculture extension manual; No. 32

  A 24-page manual that introduces the carrageenan-producing seaweed Kappaphycus whose culture has spread from Jolo in Mindanao to at least 14 sites in the Visayas and Luzon. Four culture methods are presented: fixed off-bottom, raft long-line (single or multiple), hanging long line, and polyculture of seaweeds with carnivorous fishes.
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  Conference paper

  Utilization of seaweeds in Thailand 

  K Lewmanomont - In IJ Dogma Jr., GC Trono Jr. & RA Tabbada (Eds.), Culture and use of algae in Southeast Asia. Proceedings of the Symposium on Culture and Utilization of Algae in Southeast Asia, 8-11 December 1981, Tigbauan, Iloilo, Philippines, 1990 - Aquaculture Department, Southeast Asian Fisheries Development Center

  Different seaweeds harvested from natural stocks are utilized in Thailand as human food and animal feed and for medicinal purpose and extraction of crude agar. Gracilaria and Porphyra are the most exploited commercially. Commercial cultivation through seaweed farming is recommended.
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  Article

  Vertical rope cultivation of Gracilaria (Rhodophyta) using vegetative fragments 

  AQ Hurtado-Ponce - Botanica Marina, 1990 - Walter de Gruyter

  Preliminary field culture of Gracilaria using vegetative fragments inserted between braids of ropes suspended vertically inside a floating cage was undertaken to assess the daily growth rate and monthly yield as influenced by three different spacing intervals.

  Daily growth rate of cuttings at 10 cm intervals ranged from 0.6 to 7.2% with yields of 11 to 415 g m^-1 line¹, those at 15 cm from 1.4 to 9.1% with yields of 18 to 502 g m^-1 line^-1, and at 20 cm from 1.7 to 10.5% and with yields of 20 to 379 g m^-1 line^-1. Both growth and yield were minimum in December at all spacing intervals but maximum in April at 10 and 15 cm and in February at 20 cm.

  Results of the analysis of variance (ANOVA) showed a non-significant interaction between spacing interval and culture month on daily yield of Gracilaria. This indicates that the effect of spacing interval on the daily growth rate and monthly yield was not significantly influenced by the culture month; likewise the effect of culture month did not differ significantly with the intervals used. The main effects, however, of spacing interval and culture month to daily growth rate were significant. Yield was significantly affected by the culture month but not by spacing interval.