Flounder broodstock collection in Ecuador
I worked in Ecuador as JICA ( Japan International Cooperation Agency http://www.jica.go.jp/ ) expert in CENAIM (Centro Nacional de Acuicultura e Investigaciones Marinas "Edgar Arellano M." http://www.cenaim.espol.edu.ec/ ) from 1993 to 1997. The jobs were technical transfer of marine fish seed production, particularly broodstock collection, maturation inducement, seed production and juvenile rearing of snook and flounder. Fine flounder ( Paralichthys woolmani "Lenguado") is one of very popular fish in Ecuador . The fish were fished by gill-net at off-shore where 30 to 50 m depth during winter season, June to September. Water temperature showed 21 to 25C at surface during collection season. The nets, more or less 10 cm mesh and 200 m long, were set in the afternoon and raise in the following morning. We followed the fisherman in the morning and purchased fish which was ideal for brood stock. The conditions for brood stock are the same as robalo. Especially, d...