Tambaqui fingerlings. Jefferson Christoffoletti, EMBRAPA. Arapaima gigas, known locally as pirarucu, is the largest scaled freshwater species in the world and a strong candidate for aquaculture in Brazil. Alongside this giant of the Brazilian rivers, tambaqui (Colossoma macropomum) is the second freshwater species cultivated in the country,
Oyster clasification by image analysis. Photos by Åsa Strand, IVL. By Jens Wilhelmsson, engineer at IVL. One of the most valuable bivalve molluscs in Sweden is the flat oyster, Ostrea edulis. However, domestic production of oysters fails to meet the demand on the local market at the same