Safe biological limits are the precautionary thresholds advocated by the International Council for the Exploration of the Sea (ICES). The stocks assessed are classified on the basis of various phases of fishery development: underexploited, moderately exploited, fully exploited, overexploited, depleted and recovering. To capture fisheries in inland and marine waters, including freshwater fish, diadromous fish, marine fish, crustaceans, molluscs and miscellaneous aquatic animals, excludes aquaculture.