Spatial patterns of Pisidium chilense (Mollusca Bivalvia) and Hyalella patagonica (Crustacea, Amphipoda) in an unpolluted stream in Navarino island (54° S, Cape Horn Biosphere Reserve)

• Published in: Journal of King Saud University - Science
• Main Authors: Patricio De Los Ríos Escalante, Andrés Mansilla
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2017
• Subjects: Pisidium chilense; Hyalella patagonica; Species association; Negative binomial distribution; Science (General); Q1-390; Antarctic; Cape Horn; Antarc*
• Online Access: https://doi.org/10.1016/j.jksus.2016.07.003; https://doaj.org/article/e75bfe8bbdfd43609f0509338e8e68bc

The southern South American inland waters have many endemic species and some of them are considered as endangered for IUCN, that inhabits in unpolluted ecosystems, one of these ecosystems are the sub-Antarctic perennial forests located in the Cape Horn Biosphere Reserve at 54° S. The aim of the present study is to analyze the spatial patterns of Pisidium chilense Ituarte, 1999 (Mollusca Bivalvia) and Hyalella patagonica (Cunningham, 1871) (Crustacea, Amphipoda) in an unpolluted stream. Both species had aggregated spatial distribution, both have a negative binomial distribution pattern, and both are associated. The present results would agree with similar patterns in Patagonian rivers where both species coexist.