Distribución espacial de Hyalella patagonica Cunningham, 1871 (Amphipoda) en un río Andino Patagónico (río Truful-Truful, 38°S, Región de la Araucanía, Chile)

Patricio De los Rios-Escalante; Carlos Esse; Alejandro Espinosa; Affef Baaloudj

doi:10.30550/j.azl/1864

Authors

Patricio De los Rios-Escalante Departamento de Ciencias Biológicas y Químicas, Facultad de Recursos Naturales, Universidad Católica de Temuco https://orcid.org/0000-0001-5056-7003
Carlos Esse Instituto Iberoamericano de Desarrollo Sostenible IIDS, Unidad de Cambio Climático y Medio Ambiente UCCMA, Universidad Autónoma de Chile https://orcid.org/0000-0002-5030-3275
Alejandro Espinosa Universidad de la Frontera, Facultad de Ciencias Agropecuarias y Medio Ambiente https://orcid.org/0000-0003-4722-8443
Affef Baaloudj Université 8 Mai 1945 Guelma, Faculté SNV-STU, Laboratoire Biologie, Eau et Environnement – LBEE https://orcid.org/0000-0002-6932-0905

DOI:

https://doi.org/10.30550/j.azl/1864

Keywords:

Hyalella patagonica, Patagonia, littoral, aggregated distribution

Abstract

The amphipod Hyalella patagonica is widespread in Andean inland waters in Argentinean and Chilean Patagonia, this species inhabits in littoral zones of rivers, streams, lakes and lagoons, that have mainly aggregated patterns of spatial distribution in according to the literature. The aim of the present study is to apply different kinds of aggregation models for explain spatial distribution of H. patagonica collected in a North Andean Patagonian stream. It was applied different kind of dispersion coefficient for understand H. patagonica spatial pattern. The results revealed that H. patagonica population have aggregated distribution, but not necessary negative binomial distribution that is frequent probabilistic model associated to aggregated spatial distribution. The results would be similar to patterns observed for Hyalella genus in Patagonian inland waters.

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