wolffish


The <code>wolffish</code> data frame has 25 rows and 2 columns.
The  mean catch per tow values were digitized from Figure 4 of Helser and Hayes (1995) and back-transformed to the original scale.


datasets

Fishery science methods and models from published literature and contributions from colleagues.

Gary A Nelson

fishmethods

Fishery Science Methods and Models in R

wolffish function

This data frame contains the following columns:
<dl>
<dt>year</dt><dd>survey year of catch per tow</dd> <dt>index</dt><dd>mean catch per tow value (untransformed)</dd> </dl> 

Format

Helser, T. E. and D. B. Hayes. 1995.  Providing quantitative management advice from stock abundance 
indices based on research surveys. Fishery Bulletin 93: 290-298.

wolffish: Spring untransformed mean catch per tow for wolffish (Anarhichas lupus)

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