0 wtcpue, >0 cntcpue

[rBatt]

Sometimes the weight is 0, even though the count is positive.

Could fix with length/ weight regressions, particularly for neus (which has length data).

Would need to update spp.key by adding parameter columns, and getting parameters from rfishbase. Then in clean.columns could add a step to fill in these cases using the regression.

Instead of relying on fishbase, could also just find average weight per individual, or the regression, from the trawl data itself.

[bselden]

@mpinsky I seem to remember from looking at your scripts that you estimated catch weights from length-weight regressions for NEUS in some of your previous analyses. If so, do you have a file for these parameters for the NEUS species you included in your analyses that you could share to get us jumpstarted on this?

[mpinsky]

Hmm, not sure what you're remembering. Once upon a time (can't remember what project), I used Fishbase parameters for von Bertalanffy growth curves to estimate weight from length.

On Wed, Jan 13, 2016 at 4:44 PM, bselden notifications@github.com wrote:

@mpinsky https://github.com/mpinsky I seem to remember from looking at your scripts that you estimated catch weights from length-weight regressions for NEUS in some of your previous analyses. If so, do you have a file for these parameters for the NEUS species you included in your analyses that you could share to get us jumpstarted on this?

— Reply to this email directly or view it on GitHub https://github.com/rBatt/trawlData/issues/41#issuecomment-171445572.