An 8-year cycle in krill biomass density inferred from acoustic surveys conducted in the vicinity of the South Shetland Islands during the austral summers of 1991–1992 through 2001–2002
Aquat. Living Resour., 16 3 (2003) 205-213
DOI: https://doi.org/10.1016/S0990-7440(03)00019-6