PATRONES DE HISTORIAS DE VIDA DE PELÁGICOS MAYORES

Abstract

The traits of the life history of marine organisms are essential in the diversification of strategies deployed to use the available resources allocated for growth, development, feeding and reproduction. The present work constitutes an integrated approach to life history traits about aspects of population biology (growth coefficient K, natural mortality, M, L ∞ infinite length, maximum length Lmax, Tmax longevity, length and age at first maturity, Lm and Tm, reproductive life cycle, CVR), distribution and habitat, feeding habits and reproductive strategies, to identify and explore patterns relating to the life history of the families Scombridae, Istiophoridae, Xhipiidae and coryphaenidae. Data was exhaustively collected using literature from several databases ASFA (Aquatic sciences and Fisheries Abstracts) EBSCOhost and FishBase. Information reported in the literature was examined with a Principal Components Analysis (PCA) to identify groups of species with similar strategies bases. One of the most important parameters and that was more closely correlated with most variables in the life history was the maximum length. The optimal temperature, the depth to which are distributed and food habits allowed discriminate between the habitat preferences of species of four families. Was possible to identify four groups of reproductive strategies. The principal components analysis with all variables of the life history and ecological variables allowed to classify four distinct groups of species, the most important variables categories of prey, temperature, age at first reproduction, the rate of growth, longevity and natural mortality, which further explain the patterns of variation. The attributes of longevity, reproduction and growth are those that determine the processes of life history