Little Sackville River Digger Log Installation 2009 - The Atlantic ...

Table 4. Actual and Projected Atlantic salmon Population Using Elson Norms
Life Stage Elson Norm Actual Estimated Yield
Catch
Egg/unit 240 0 using fry catch 8.28, using parr catch
22.85
Fry/unit 29 1.04 using parr catch 2.76
Parr/unit 38 3.84 using fry catch 1.36
Creek chub
There were a total of 57 Creek chub caught during these three sweeps. The catch
distribution did not sufficiently follow the Zippen model projections so no population estimate
can be performed. This was probably due to the schooling behavior of the species. The only
conclusion that can be arrived at is there is at least 57 Creek chub. There are no previous
comparable results to analyze this data against.
White suckers
There were a total of 33 White suckers caught during these three sweeps. The catch
distribution did not sufficiently follow the Zippen model projections so no population estimate
can be performed. This was probably due to the schooling behavior of the species. The only
conclusion that can be arrived at is there is at least 33 White suckers present. There are no
previous comparable results to analyze this data against.
American eel
There were a total of 51 American eels caught during these three sweeps. These
numbered thirty‐four in sweep one, nine in sweep two and five in sweep three. This catch
distribution allowed interpretation through the Zippen model (see Figure 5.) The projected
total population was 53± 4.22 at a 95% confidence limit. This gave a per unit distribution of 5.5.
There are no previous comparable results to analyze this data against.
Figure 5. American eels caught During Respective Electrofishing Sweeps
27 | D igger Log Installation 2009