Banca de DEFESA: LEONARDO SILVA PEREIRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : LEONARDO SILVA PEREIRA
DATE: 10/06/2022
TIME: 10:00
LOCAL: Presidente Médici - UNIR
TITLE:

GEOSPATIAL EVALUATION OF PIRARUCUS INVASIONS IN DAMS WATER AREAS AND THEIR EFFECTS ON THE NATIVE FISHING STOCKS IN THE STATE OF RONDÔNIA

KEY WORDS:

Fish assembly; Arapaima spp.; amazon biome, invasive species, fish farming.

PAGES: 65
BIG AREA: Outra
AREA: Ciências Ambientais
SUMMARY:

Much has been written about the negative impacts of large hydroelectric dams on fish species diversity in the Amazon River basin, especially as physical barriers to the movement of migratory fish to areas upstream of these dams, where lower rates of species diversity and abundance have been noted. On the other hand, little is known about the cumulative impacts of thousands of small fish dams built on streams throughout the state of Rondônia, which act as dispersal structures for exotic or invasive fish species in the environment, and even less, which deleterious effects these individuals cause on the native fish assemblages that compose the fishing stocks used by the artisanal and sport fishing fleets, particularly in the Abunã, Madeira, Machado, Roosevelt, Mamoré and Guaporé river basins, distributed throughout the state. In this sense, the present research project has as its main goal to evaluate the geospatial distribution of the pirarucu, its biology and feeding preference, as an invasive species, in the areas of river barring and fish farming, evaluating its impacts on native fish stocks in the river basins of Rondônia. Therefore, this research is justified by the importance of understanding the origin, dispersion and colonization processes of the pirarucu in the floodable environments of the state, as well as estimates of growth and adaptability of these individuals to new environments, verifying mainly through analysis of stomach contents which fish populations are being preyed upon by these animals, and if these species (prey) are of interest to the fisheries of the study region.

BANKING MEMBERS:
Presidente - 1692690 - RANIERE GARCEZ COSTA SOUSA
Externo ao Programa - 3122885 - DONOVAN FILIPE HENRIQUE PINTO
Externo ao Programa - 3066115 - MARCONDES AGOSTINHO GONZAGA JUNIOR
Externo ao Programa - 3066639 - SEVERINO ADRIANO DE OLIVEIRA LIMA