Blar i Fiskeridirektoratets skrifter, Serie Havundersøkelser (1900-1990) på forfatter "Foote, Kenneth G."
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Absorption term in time-varied-gain functions
Foote, Kenneth G. (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1981)A potential source of error in acoustic measurements of fish density is the absorption part of time-varied-gain functions. This should be determined from the 1977 Fisher and Simmons equation. Use of its predecessor, the ... -
Analysis of empirical observations on the scattering of sound by encaged aggregations of fish
Foote, Kenneth G. (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1978) -
Angular measures of dorsal aspect target strength functions of fish
Foote, Kenneth G. (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1980)Three angular measures of dorsal aspect target strength functions in the pitch plane are computed for previously gathered acoustic data on three gadoid fishes, two clupeoid fishes, and mackerel. These measures are the ... -
Standard calibration of echo sounders and integrators with optimal copper spheres
Foote, Kenneth G.; Knudsen, Hans Petter; Vestnes, Gudmund (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1983)Calibration of fisheries echo sounders and integrators by means of optimal copper spheres is reviewed. The standard procedure is elaborated. Maintenance of O.1 dB precision is described for a wide range of temperatures ... -
Swimbladder cross sections and acoustic target strengths of 13 pollack and 2 saithe
Foote, Kenneth G.; Ona, Egil (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1985)Data are presented on the swimbladder form and acoustic target strengths of each of 15 surface-adapted gadoids, 13 pollack (POLLACHIUS POLLACHIUS) and 2 saithe (POLLACHIUS VIRENS), of lengths from 31.5 to 44.5 cm. The ... -
Theoretical estimation of the mean echo intensity - fish number density relation for encaged saithe in the dorsal aspect
Foote, Kenneth G. (Fiskeridirektoratets skrifter, Serie Havundersøkelser, Research report, 1978)