The Free Online Aquaculture Dictionary

Eel (Anguilla sp.)

Eels (Anguilla anguilla) showing difference in size (10 - 70 g) only four weeks after grading. (Temperature 26oC). the difference in size leads to a high degree of cannibalism, with the larger animals eating the smaller, especially if feed rates are not correct or stress levels are high

 

European eels (Anguilla anguilla) under automatic feeder

 

See also elver