Banca de DEFESA: MARCELLE STEPHANNE BARBOSA DA SILVA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : MARCELLE STEPHANNE BARBOSA DA SILVA
DATE: 30/05/2022
TIME: 14:00
LOCAL: Google Meet (https://meet.google.com/hjc-hrbx-wqr)
TITLE:

Projected impact of future climate change on cultivation of seaweed Gracilaria birdiae on coast of Brazil


KEY WORDS:

Seaweed; Gracilaria birdiae; Species Distribution Model; Global Warming; MaxEnt.


PAGES: 40
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUMMARY:

Currently, there’s still a knowledge gap on how climate change will affect marine ecosystems and organisms. This knowledge gap is also valid to economically important sectors, such as aquiculture, which cultivates marine organisms. One of the most cultivated organisms in aquiculture is the seaweeds, which the production has been increasing annually, being one of the most promising sectors of aquaculture. The Ecological Niche Modeling (ENM) has currently been applied as a tool to predict the future distribution of species with economic potential regarding environmental and chemical impacts driven by climate change. In this context, this study aimed to evaluate how the projected scenario of future climate change (RCP 8.5) will impact the cultivation of the seaweed Gracilaria birdiae in the Brazilian coast based on the ENM. The modeling was carried out by integrating the MaxEnt algorithm to the RStudio software. The species occurrence data were obtained from the literature. Bioclimatic data were acquired through the Bio-ORACLE database. To validate whether there were significant differences among site suitability at each period, a Friedman test was also performed. The results revealed that the species site suitability will expand in the future and the species distribution was not limited by the temperature. Studies have reported that the genus Gracilaria exhibits a broad range of temperature tolerance, which may explain why the increased superficial seawater temperature will not affect G. birdiae in the RCP 8.5 scenario. In conclusion, the seaweed Gracilaria birdiae shows a great potential for seaweed cultivation in the coast of Brazil, which could lead the country tobecome a major producer of this species.


BANKING MEMBERS:
Interno - ***.178.178-** - EDSON APARECIDO VIEIRA FILHO - UFRN
Presidente - 1279472 - ELIANE MARINHO SORIANO
Externo à Instituição - MARCELO FRANCISCO DE NÓBREGA - UFRN
Notícia cadastrada em: 19/05/2022 09:01
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