A function to find estimates length-weight relationship parameters available on fishbase. It returns a list of means and standard deviations of a and b obtained from: *Froese, R., J. Thorson and R.B. Reyes Jr., 2013. A Bayesian approach for estimating length-weight relationships in fishes. J. Appl. Ichthyol. (2013):1-7.* Please cite Froese et al. (2013), when using these values. The default mirror for fishbase is set to "de", please change this if needed for your location
find_lw(sp, mirror = "us")A charachter value containing the species name
Mirror for fishbase (eg. "de", "org", "us", etc.) Default is "us".
A dataframe with means and standard deviations of length-weight parameters
library(fishflux)
library(plyr)
# find length-weight relationship parameters for one species
find_lw("Lutjanus griseus")
#> species lwa_m lwa_sd lwb_m lwb_sd
#> 1 Lutjanus griseus 0.01479 0.001086735 2.98 0.01530612
# find length-weight relationship parameters for multiple species and return in dataframe
ldply(lapply(c("Chlorurus spilurus","Zebrasoma scopas"), find_lw))
#> species lwa_m lwa_sd lwb_m lwb_sd
#> 1 Chlorurus spilurus 0.01445 0.008438776 3.03 0.08673469
#> 2 Zebrasoma scopas 0.02512 0.002709184 2.98 0.02551020