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RFishBC (version 0.2.3)

Back-Calculation of Fish Length

Description

Helps fisheries scientists collect measurements from calcified structures and back-calculate estimated lengths at previous ages using standard procedures and models. This is intended to replace much of the functionality provided by the now out-dated 'fishBC' software ().

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Version

Install

install.packages('RFishBC')

Monthly Downloads

280

Version

0.2.3

License

GPL-3

Maintainer

Derek Ogle

Last Published

December 12th, 2019

Functions in RFishBC (0.2.3)

Collect radial measurements from a calcified structure by interactively selecting annuli

findScalingFactor

Find scaling factor from object of known length

Converts between types of measurements.

Returns the notes from the chosen R Data files

showDigitizedImage

Show points selected on a structure image and saved in an R data file

Creates a function for a specific model.

Fish-specific data for West Bearskin Lake Smallmouth Bass.

Combines radii data from multiple files into one data.frame

List files with a specific extension in a folder/directory

Extracts a fish identification from a vector of image file names

Add a note to an existing RData file

Finds standard intercept (a) for Fraser-Lee back-calculation model for a particular species.

Radial measurements for for West Bearskin Lake Smallmouth Bass.

Standard intercepts for Fraser-Lee model by species.

Internal functions.

See or set arguments for common RFishBC functions

Add total radius-at-capture to wide increments data.

Back-calculate length at previous ages from standard data format.