WD 6 Saihe-0-gr-observers.pdf (46.70Kb)

An additional objective of the survey was to undertake process studies on herring larvae to map the small scale overlap between the larvae and their prey and predators using

In the present work time series of the following biological variables were taken into consideration (Table 2): Russian larvae index (26 years); Norwegian larvae index

On a previous survey the area south of Stad had been covered, but no herring larvae were found in this area.. High concentrations of herring larvae were found in the whole area

In this paper, the survey index variance is estimated indirectly by cross calibrating time series of VPA estimates and trawl survey indices of abundance.. For

Two alternative survey index series have been calculated, one for 2001-2008 representing the traditional saithe survey area with new course lines and stratification, and one

Figure 4 Average annual indices for the thirteen most stable observers, average of the ten and saithe larvae index for 2000-2008. The mean observed year-class strength does not seem

0-group saithe were scattered in clusters over most of the southern parts of the survey area. No abundance index was calculated, but based on the spatial distribution, it seems

The Herring Survey Planning Group strongly recommends an increase in the coverage in time and space of the herring larvae surveys with first priority given to