In this work, the cultivation of river shrimp was implemented through intensive use of solar radiation for the sustainable development of the Camarones, a village in Chile. An aquaculture production plant was built under water recirculation to produce 8000 k of river shrimp and rainbow trout per year, in a 25:75 ratio, respectively. This was developed taking into account (1) the concept of how to help resilient communities, considering the principles of the circular economy; (2) that the cultivation of these species will use solar water treatment technology to reduce arsenic content present in the natural waters of the Camarones River; and (3) how to add value to the residues obtained from the production plant for better agriculture and to have water to preserve the ecosystem. In addition, this initiative will rely on solar energy and radiation to produce electrical energy and a photochemical reaction to remove arsenic from the water. This work complies with 10 of the 11 principles of the Circular Economy, making it a potential alternative for all areas of the world that have similar characteristics.

La utilización de óxidos de manganeso se evidencia en el extremo norte de Chile desde el periodo Arcaico (ca. 10.500-4.000 cal. a.p.) en tierras bajas (costa y valles) y tierras altas (precordillera y altiplano). En tierras bajas aparece en contextos de cazadores-recolectores y pescadores Chinchorro, en los procesos de momificación artificial y en cuerpos momificados de forma natural. En tierras altas se encuentra en aleros ocupados por cazadores-recolectores terrestres altoandinos. Adicionalmente, la información geológica existente apunta a que las fuentes de los óxidos de manganeso se encuentran sólo en sectores altoandinos. Con toda esta información, sumado a nuestros resultados obtenidos a partir de análisis físico-químicos de los pigmentos y pinturas de contextos arqueológicos se discute sobre la producción o cadena operativa del color negro a partir del mineral de manganeso, la criptomelana. Adicionalmente, se proponen alternativas interpretativas en torno al abastecimiento y movilidad de los óxidos de manganeso desarrollados por las sociedades arcaicas de la región.

The Camarones (CB) and Vitor (VB) Bays are situated in the middle of Atacama Desert, and their economies are based on activities entirely associated with the extraction of marine produce. The aim of this study was to determine the total arsenic content in three species of fish and seven species of shellfish from these two bays. The quantification of the total arsenic content in these products was performed by Hydride-Generation Atomic Absorption Spectrometry, HG-AAS. The results showed that marine species associated with the CB sector had higher total arsenic levels than the same species in the area of VB, a finding attributed to much higher total arsenic concentrations in the water and soils of CB than VB. The species with the highest total arsenic concentration was the Venus antique (7.50 mg kg ⁻¹) from the CB, and the lowest total arsenic content was found in Cheilodactylidae variegatus (0.34 mg kg⁻¹) from VB.