Acoustical Detection of High-Density Krill Demersal Layers in the Submarine Canyons off Georges Bank
- 15 July 1988
- journal article
- research article
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 241 (4863) , 359-361
- https://doi.org/10.1126/science.241.4863.359
Abstract
High-density demersal layers of krill have been detected in the submarine canyons off Georges Bank by means of a high-frequency, dual-beam bioacoustical technique. Krill densities in these demersal layers were observed to be two to three orders of magnitude greater than the highest densities observed in water-column scattering layers. Such abundances may help explain the unusually high squid and demersal fish production estimates attributed to the Georges Bank ecosystem.This publication has 12 references indexed in Scilit:
- Analyzing zooplankton size distributions using high‐frequency soundLimnology and Oceanography, 1988
- Acoustic determination of small-scale distributions of individual zooplankters and zooplankton aggregationsDeep Sea Research Part A. Oceanographic Research Papers, 1985
- Acoustic measurements of zooplankton distributions in the seaICES Journal of Marine Science, 1984
- Population structure of daytime surface swarms of the euphausiid Meganyctiphanes norvegica in the Bay of FundyMarine Ecology Progress Series, 1984
- Daytime surface swarming by Meganyctiphanes norvegica (M. Sars) (Crustacea, Euphausiacea) off Brier Island, Bay of FundyCanadian Journal of Zoology, 1979
- Evaluation of the Dual Beam Acoustic Fish Target Strength Measurement MethodJournal of the Fisheries Research Board of Canada, 1979
- Population densities of euphausiids off Nova Scotia as indicated by net samples, whale stomach contents, and sonarLimnology and Oceanography, 1978
- Migrant Sound Scatterers: Interaction with the Sea FloorScience, 1965
- Food and Habits of Meganyctiphanes norvegicaJournal of the Marine Biological Association of the United Kingdom, 1926
- Notes On EuphausiidsJournal of the Marine Biological Association of the United Kingdom, 1923