sizeMat - Estimate Size at Sexual Maturity
Estimate morphometric and gonadal size at sexual maturity for organisms, usually fish and invertebrates. It includes methods for classification based on relative growth (using principal components analysis, hierarchical clustering, discriminant analysis), logistic regression (Frequentist or Bayes), parameters estimation and some basic plots. Optional ggplot-style graphics are available for selected plot methods.
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allometric-variablesgonad-maturitymorphometric-maturity
4.85 score 4 stars 35 scripts 249 downloadsgnomonicM - Estimate Natural Mortality for Different Life Stages
Estimate natural mortality (M) throughout the life history for organisms, mainly fish and invertebrates, based on gnomonic interval approach proposed by Caddy (1996) <doi:10.1051/alr:1996023> and Martinez-Aguilar et al. (2005) <doi:10.1016/j.fishres.2004.04.008>. It includes estimation of duration of each gnomonic interval (life stage), the constant probability of death (G), and some basic plots.
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fisheriesgnomonicnatural-mortality
3.70 score 1 stars 4 scripts 173 downloads