Open AccessNegative binomial distribution to describe the presence of Trifur tortuosus (Crustacea: Copepoda) in Merluccius gayi (Osteichthyes: Gadiformes)
Author(s) -
Giselle Garcia-Sepulveda
Publication year - 2017
Publication title -
safer
Language(s) - English
Resource type - Journals
ISSN - 0719-3726
DOI - 10.7770/safer-v5n2-art1215
Subject(s) - negative binomial distribution , biology , distribution (mathematics) , fishery , host (biology) , ecology , statistics , mathematics , mathematical analysis , poisson distribution
This paper describes the frequency and number of Trifur tortuosus in the skin of Merluccius gayi, an important economic resource in Chile. Analysis of a spatial distribution model indicated that the parasites tended to cluster. Variations in the number of parasites per host can be described by a negative binomial distribution. The maximum number of parasites observed per host was one, similar patterns was described for other parasites in Chilean marine fishes