Dissertação
Pesca artesanal no Rio Vacacaí, RS: influências da orizicultura irrigada e os potenciais territórios de conflitos
Fecha
2015-08-13Registro en:
MORAES, Tiago Rossi de. ARTISAN FISHING IN VACACAÍ RIVER, RS: INFLUENCES OF IRRIGATED RICE CULTIVATION AND POTENTIAL CONFLICTS OF TERRITORIES. 2015. 144 f. Dissertação (Mestrado em Geociências) - Universidade Federal de Santa Maria, Santa Maria, 2015.
Autor
Moraes, Tiago Rossi de
Institución
Resumen
This research has as its central theme the artisanal fishing practiced in Vacacaí
River, RS. In the course of the study it was sought to characterize this activity,
identifying its relationship with other economic activities that also use the river water,
especially irrigated rice cultivation, from the vision of artisanal fishermen, and with the
contribution of bibliographical and documentary research. From information obtained
through official data of rice production and planted area, rainfall and altitudes of
Vacacaí River, in the years 2004 to 2013, it was established the relationship between
excessive consumption of water from irrigated rice cultivation and the decrease in the
level of the river, one of the main problems pointed out by fishermen. Through three
expeditions in which was traveled over 200 kilometers of Vacacaí Riverbed, where
the water level allows navigation, it was mapped 64 rice fields irrigation pumps and
another 24 disabled facilities. To identify Vacacaí fishing sites it was used
participatory mapping, in which those interviewed artisanal fishermen made the
recognition of their fishing grounds with the help of satellite images mosaics. That
way seventeen fishing sites were mapped by Vacacaí fishermen, ten of which have
irrigation pumps. These sites were considered potential areas of conflict between the
two activities analyzed. Due to the size of the study area and the need to
demonstrate the elements of analysis in detail, the final map containing this
information had to be divided into three parts.