Desempeño de dos diseños de muestreo empleados en la evaluación de crustáceos demersales mediante el método de área barrida

Cristian Canales, Patricio Arana

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

4 Citas (Scopus)

Resumen

Herein, we simulate the theoretical density of the variable catch per unit area (CPUA) for demersal crustaceans distributed over the continental shelf in a pre-determined geographic location. This density was used to simulate two sampling designs traditionally used in Chile for evaluating crustaceans with the swept area method. The performances of systematic and stratified random samplings were evaluated considering different scenarios in terms of the number of strata, transects, and the number of hauls per transect or stratum. As an indicator of efficiency, we measured the mean squared error and the relative error of the estimator of average density. The results indicate that, for a resource that is aggregated in space, is correlated spatially, and has important density gradients, the systematic sampling design presents lower indices of error than does the stratified sampling design.

Título traducido de la contribuciónPerformance of two sampling designs used to evaluate demersal crustaceans with the swept area method
Idioma originalEspañol
Páginas (desde-hasta)211-219
Número de páginas9
PublicaciónLatin American Journal of Aquatic Research
Volumen37
N.º2
DOI
EstadoPublicada - 2009
Publicado de forma externa

Palabras clave

  • Biomass determination
  • Demersal resources
  • Simulation
  • Stratified sampling
  • Swept area method
  • Systematic sampling

Huella

Profundice en los temas de investigación de 'Desempeño de dos diseños de muestreo empleados en la evaluación de crustáceos demersales mediante el método de área barrida'. En conjunto forman una huella única.

Citar esto