Foredrag, lecture (2.285Mb)

• The third international blue whiting spawning stock survey shows a clear increase in stock numbers and biomass (~20–36%), in comparison to the survey in 2005.. The estimates

As the survey produces abundance indices for the mature part of the cod stock these indices should be corrected with proportions mature before they are used in traditional

Absolute abundance of blue crabs in the winter population (N.) are estimated by adjusting survey estimates of relative abundance (e.g., average catch per 1000m 2 swept)

Abundance estimation To estimate the abundance of a fish stock over the entire survey region, it is necessary to integrate the line-transect measurements and

The results of a summer survey initiated in 1996 were investigated as a possible index of stock size to calibrate XSA. The survey showed relatively good internal consistency up to

The survey results include the distribution and the biomass estimate of spawning blue whiting in March-April west of the British Isles, and the distribution, migration and

The assessment is fitted using egg survey estimates of stock size which are treated as absolute measures of abundance, and age disaggregeted Western Approaches survey data, assumed

The vessel time this year allocated to the survey is difficult to compare to that last year, since the coverage of the capelin stock formed part of a multipurpose survey. The weather