Gracilaria (Rhodophyta) farming in Panay, Western Visayas, Philippines
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Interviews were conducted among eight Gracilaria growers in Panay, Western Visayas, Philippines from March to July (1990) using a structured questionnaire. The "rice planting" method was employed by farmers growing seaweeds in natural drainage canals and ponds. Initial harvests are made 15–60 days after planting. Higher production [ 7–14 t (dry) ha−1 year−1] are obtained from cultures in canals than in ponds [3–4 t (dry) ha−1 year−1]. The net income derived from culture in ponds is estimated at P698/crop or P6313/year (US$234/year). A higher net income of P4936/crop or P41766/year (US$1547/year) was generated from Gracilaria farming in canals. Returns on investment (ROI) from farming in ponds and canals are 39% and 908%, respectively. Payback period is 2 months in canal farming and 1.8 years in pond farming.
Hurtado-Ponce, A. Q., Samonte, G. P. B., Luhan, M. R. J., & Guanzon, N. G., Jr. (1992). Gracilaria (Rhodophyta) farming in Panay, Western Visayas, Philippines.
Aquaculture, 105(3-4), 233-240. https://doi.org/10.1016/0044-8486(92)90089-4
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