Cultivation of the edible green seaweed Gayralia (Chlorophyta) in southern Brazil

摘要: During the last two decades, monostromatic green seaweed Gayralia sp. has been harvested sporadically by local fishermen on Parana coast of southern Brazil and sold to Japanese restaurants. However, production is erratic its economic impact very small. This paper provides basic information about a technique cultivate this suspended nets in Paranagua Bay, Brazil, aiming develop more reliable sustainable source income for impoverished coastal dwellers. occurs year round region, usually growing mangrove stems roots. Polypropylene (10 m long × 1 wide with 16 cm mesh) were placed close fringe. Recruitment occurred reaching peak 500 recruits m−2 during early spring. Higher recruitment at periods low temperature (21–23°C) high salinity (30–33 psu). Growth rates ranged from 5.75 ± 0.56% 6.50 0.43% day−1 winter 1.43 1.65% 4.65 2.17% day−1, summer. Production 22 6 g DW June 58 21 September 2004 45 days after zooid settlement. The simplicity cultivation method, reasonable growth extensive favorable area suggest that mariculture may become good alternative inhabitants.