Banca de DEFESA: ANDRESSA TAVARES SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : ANDRESSA TAVARES SILVA
DATA : 30/04/2019
HORA: 14:00
LOCAL: Caraíva 1 - https://mconf.rnp.br/webconf/csc-2
TÍTULO:

Study of the sensitivity and tolerance to the increase of the concentration of nutrients in coral larvae


PALAVRAS-CHAVES:

Dissolved inorganic nutrients, marine microcosm, ammonium, nitrate, reactive species.


PÁGINAS: 65
GRANDE ÁREA: Outra
ÁREA: Ciências Ambientais
RESUMO:

Anthropogenic activities strongly affect aquatic ecosystems, causing changes in their form, original composition, and compromising the existing communities. In addition, environmental stressors are important bioindicators of the health of numerous organisms, such as reefs, since they respond physiologically to these conditions. In this way, the objective of this work was to study the effects of the increase of dissolved inorganic nutrients and the temperature in the tolerance of larvae of Agaricia humilis. The study was conducted in the microcosm of the Projeto Coral Vivo, simulating nutrient concentration conditions of 8.5 and 46 μmol L-1 for ammonium and 1 and 8 μmol L-1 for nitrate, as well as the mixtures in solutions prepared with water saline, and temperature of 32° C and 26 ° C, to which we subjected the larvae. As a response, there was a significant effect of temperature (up to 78% at 32 ° C). However, surviving free larvae presented higher oxidative damage at high concentrations of nutrients and low temperatures. Thus, this study highlights the importance of monitoring reef environments, as well as the need for a more detailed study of the physiological health of corals, since only mortality rates do not express the consequence of global and local stressors in coral survival.


MEMBROS DA BANCA:
Presidente - 962.287.925-04 - ALLISON GONÇALVES SILVA - IFBA
Interno - 1148721 - CARLOS WERNER HACKRADT
Externo à Instituição - LAURA FERNANDES DE BARROS MARANGONI - FURG
Interno - 548.407.245-04 - MARCUS LUCIANO SOUZA DE FERREIRA BANDEIRA - IFBA
Notícia cadastrada em: 25/04/2019 10:19
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