Harbor seals (Phoca vitulina) appeared to habituate to acoustic harassment devices placed on gillnets in the Oregon salmon fishery. Results, although inconclusive, demonstrate a possible reduction in damaged salmon, at least in the short-term.
Pp. 37-55 in B.R. Mate and J.T. Harvey (eds.): Acoustical Deterrents in Marine Mammal Conflicts with Fisheries. Oregon State University Sea Grant College Program No. ORESU-W-86-001. 116 pp.