Marie P Fish
William H Mowbray
- University of Rhode Island; Narragansett Marine Laboratory
NOTES: Individuals and groups (to 30) segregated in test tanks, wooden and glass aquaria for long periods: spontaneous low knocks and underwater clicking only during night-time activity of groups (e.g., 28 in wooden tank, Sept. 1964). Fish, M.P. and W.H. Mowbray. 1970. Sounds of the Western North Atlantic fishes: a reference file of biological underwater sounds. Johns Hopkins Press. Baltimore. p. 13.