Banca de DEFESA: BRUNA LUCIENY TEMPONI SANTOS

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : BRUNA LUCIENY TEMPONI SANTOS
DATE: 17/05/2024
TIME: 09:00
LOCAL: Campus de Rolim de Moura- sala 21
TITLE:

Nuclear erythrocyte anomals in tambaquis (colossoma macropomum) and frogs Leptodactylus fuscus and L. petersii, Physical- chemical and planktonic impacts caused by AMPA, Glyphosate and microplastics combined in the water of fish farmings.

KEY WORDS:

Colossoma macropomum; Neoechinorhynchus buttnerae; Parasite fauna; Vale do Jamari microregion; Zooplankton.

PAGES: 76
BIG AREA: Outra
AREA: Ciências Ambientais
SUMMARY:

The main aims of this Dissertation were, in Chapter 1, to determine the spatial and seasonal distribution of the zooplankton community in fish farm freshwater in the microregions of the Vale do Jamari and Centro Leste microregions, Rondônia state; in Chapter 2, to determine the incidence of acanthocephalan infestation in tambaqui (Colossoma macropomum) and its relationship with Ostracods and Copepods. The zooplankton community was measured at two hydrological seasons (rainy and dry seasons) in the water of 30 fish farms in Rondônia state. The experimental development was organized following a completely randomized factorial scheme, where species were considered in composition, richness, frequency of occurrence, abundance, relative abundance, and in diversity indices, such as Shannon-Weaver (H'), Pielou's evenness (J), and species richness (S), considering spatial distribution (microregions) and seasonality. The diversity indices were somewhat dissimilar among the sampling points, with a greater diversity of Ostracoda populations recorded in the Vale do Jamari and Copepoda in the Centro-Leste, especially during the rainy season. The observed zooplankton communities exhibit distinctive spatial and seasonal heterogeneity. The incidence of acanthocephalans was measured in 41 fish farms belonging to two microregions of Rondônia, the Vale do Jamari and Centro Leste, during the Amazonian hydrological seasons, rainy (November to March) and dry (April to October), from November 2021 to September 2023. Epidemiological data were collected through a semi-structured questionnaire during visits, where water and zooplankton samples from the culture tanks were collected, and tambaquis were captured, using a triple-sample collection and a completely randomized factorial scheme. Of the visited properties, 97% (40) had occurrences of fish infected by Neoechinorhynchus buttnerae. Georeferencing showed that in the Vale do Jamari, the highest densities (in simulated graphical estimates) of Acanthocephalan infestations were in Ariquemes, Monte Negro, Machadinho do Oeste, and Buritis, while in the Centro-Leste, they were in Urupá, Ji-Paraná, Ouro Preto do Oeste, Mirante da Serra, and Teixeirópolis, with emphasis on the municipalities of Ji-Paraná, Ouro Preto do Oeste, Urupá, and Teixeirópolis, with a cluster of heat islands of 500 ha^-1 in 889 km². The values found for water quality variables were in accordance with parameters suitable for tambaqui raised. The presence of Ostracods and Copepods can be used to predict potential parasitic infestations in tambaquis.

COMMITTEE MEMBERS:
Externa à Instituição - TATIANE BANCA DA BRUNA - UFAL
Externo à Instituição - ED JOHNNY DA ROSA PRADO
Externo à Instituição - FRANCISCO CARLOS DA SILVA - São Lucas
Externo à Instituição - JERONIMO VIEIRA DANTAS FILHO - UNIR