JAS002084.pdf (398.1Kb)

We used a viscous-elastic spherical swimbladder model which includes higher modes of backscattering, and hence could explain the observed features of the in situ measured

Observed fish reactions to a surveying vessel with specia1 reference to herring, cod, capelin and polar cod.. In situ observation of swimbladder cornpression in

In order to apply tethered-single-fish measurements to fish in the wild, the dorsal aspect target strength functions of tilt angle are averaged with respect to a specific

Uncertainty (bootstrapped 95 % confidence intervals) in the estimated proportions of fish in different length groups, and of mean fish length, as a function of number of

In developing the present method for correcting measurements of scatterer density for extinction the mean backscattering and extinction cross sections are assumed

Since the back scattering cross section for a particular species and size varies with the aspect angle, and the distribution of aspect angles for the fishes

frequency backscattering characteristics of schools of swimbladder bearing fish. These studies include biological modelling of fish distributions, theoretical modelling

Observations of maximum dorsal aspect target strength on saithe and the regression line.. Observations of maximum dorsal aspect target strength o n pollack and the