"An index that expresses the condition of fish in numerical terms, usually reflecting fluctuations of weight in relation to length. "@en . "Glossary of inland fishery terms, EIFAC Occasisonal Paper No. 12, FAO, 1978 (http://www.fao.org/3/ae987b/AE987B01.htm). " . "2021-10-22T10:33:36"^^ .