Banca de DEFESA: ALEX BARBOSA DE MORAES

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
STUDENT : ALEX BARBOSA DE MORAES
DATE: 13/06/2022
TIME: 07:30
LOCAL: Google Meet
TITLE:
KEY WORDS:

modeling; biological invasion; Dendrobranchiata; Whiteleg Shrimp; Pacific White Shrimp; shrimp farming.

PAGES: 203
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUMMARY:

The Penaeidae shrimp represents one of the most economically profitable fishing resources in the world. Therefore, in several regions of the world there is a large investment in shrimp farms for the production of cultivated shrimp. Currently, the P. vannamei species, originally from the American Pacific Ocean, appears as one
of the most productive species in the world industry. However, the intense use of this species for cultivation has led to increasingly frequent records of its presence in natural marine ecosystems, far from their native geographic distribution. Recent studies show that the scarcity of information and research does not allow to indicate the establishment of natural populations of this exotic species or determine its invasive potential. Having that in mind, this thesis investigated the climate compatibility of the Americas’ West Atlantic Coast, in the present and future scenarios, considering different climate change predictions for the colonization and natural dispersion of this exotic species of shrimp. The invasive potential of exotic shrimp was also assessed through a comparative approach of climatic niche with related and native species of the Atlantic. Modern consensual multi-modal niche techniques applied to geographic space were used in conjunction with an Environmental PCA approach to assess the ecological niche in the environmental space. The results indicate that the receiving range of the exotic species presents a wide area with climate compatibility for survival and expansion of possible self-sustaining populations (establishment) of P. vannamei in a natural environment, encompassing areas around the main shrimp farming centers in the Americas. Analyses of the occurrences already recorded in the exotic range suggest changes in the realized niche of the specimens. Future Habitat Suitability analysis indicates stability in potential areas of invasion. Additionally, niche overlap analyses reveal potential overlap of the environmental space used by P. vannamei in relation to other marine shrimps from the Atlantic coast. Therefore, it is concluded that there is an invasive potential of P. vannamei throughout the West Coast of the Americas.

BANKING MEMBERS:
Externa à Instituição - LUISA MARIA DIELE VIEGAS COSTA SILVA - UFAL
Externo à Instituição - Adilson Fransozo
Externa à Instituição - FLAVIA LUCENA FRÉDOU - UFRPE
Presidente - 1545394 - FULVIO AURELIO DE MORAIS FREIRE
Externo à Instituição - ROGÉRIO CAETANO DA COSTA