Showing papers by "Universidad del Norte, Colombia published in 1989"
TL;DR: Enterobius vermicularis eggs were found in human coprolites collected from the archaeological site of San Pedro de Atacama, North of Chile, in occupational layers dated from 1,000 BC, amplifying the knowledge about the distribution of human oxyuriasis in Pre-Columbian America.
Abstract: Enterobius vermicularis eggs were found in human coprolites collected from the archaeological site of San Pedro de Atacama, North of Chile, in occupational layers dated from 1,000 BC. Agricultures and herding were begining at this period of time in this region of South America. The paleoparasitological data amplifies the knowledge about the distribution of human oxyuriasis in Pre-Columbian America.
14 citations
TL;DR: Growth, mortality and recruitment were determined for a loco population from Huasco (Northern Chile) six weeks after suspension of a two years closed fishing season, indicating a faster growth and a smaller asymptotic size than reported in the literature.
Abstract: Growth, mortality and recruitment were determined for a loco (Concholepas concholepas) population from Huasco (Northern Chile) six weeks after suspension of a two years closed fishing season. The study was based on a shellmound sample of 2103 specimens that came from a processing plant. The von Bertalanffy growth parameters obtained (Loo = 152–160 mm, k = 0.38–0.52) indicate a faster growth and a smaller asymptotic size than reported in the literature. Recruitment seems to occurr during most of the year being strongest over a period of 4–6 months, probably during winter and spring. Total mortality was estimated as approx. 75% per year, about 10% lower than reported for loco populations of Central Chile previous to the closed fishing season.
10 citations