dc.contributor.author | Fryer, F. J. | |
dc.contributor.author | Zuur, Alain F. | |
dc.contributor.author | Graham, Norman | |
dc.date.accessioned | 2007-06-06T07:33:37Z | |
dc.date.issued | 2003 | |
dc.identifier.issn | 0706-652X | |
dc.identifier.uri | http://hdl.handle.net/11250/108649 | |
dc.description | Publisher pdf: http://dx.doi.org/10.1139/F03-029 | en |
dc.description.abstract | Parametric size-selection curves are often combined over hauls to estimate a mean selection curve using a
mixed model in which between-haul variation in selection is treated as a random effect. This paper shows how the
mixed model can be extended to estimate a mean selection curve when smooth nonparametric size-selection curves are
used. The method also estimates the between-haul variation in selection at each length and can model fixed effects in
the form of the different levels of a categorical variable. Data obtained to estimate the size-selection of dab by a
Nordmøre grid are used for illustration. The method can also be used to provide a length-based analysis of catchcomparison
data, either to compare a test net with a standard net or to calibrate two research survey vessels. Haddock
data from an intercalibration exercise are used for illustration. | en |
dc.format.extent | 944196 bytes | |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | en |
dc.subject | bifangst | en |
dc.subject | bycatch | en |
dc.subject | cod | en |
dc.subject | trawl | en |
dc.subject | gill net | |
dc.subject | torsk | |
dc.subject | trål | |
dc.subject | garn | |
dc.title | Using mixed models to combine smooth size-selection and catch-comparison curves over hauls | en |
dc.type | Journal article | en |
dc.type | Peer reviewed | |
dc.source.pagenumber | 448-459 | en |
dc.source.volume | 60 | en |
dc.source.journal | Canadian Journal of Fisheries and Aquatic Sciences | en |