Banca de QUALIFICAÇÃO: CACILDA MICHELE CARDOSO ROCHA CELA

Uma banca de QUALIFICAÇÃO de DOUTORADO foi cadastrada pelo programa.
STUDENT : CACILDA MICHELE CARDOSO ROCHA CELA
DATE: 06/10/2022
TIME: 09:00
LOCAL: Remoto
TITLE:

Reef fish, fisheries and humans in the Anthropocene.

KEY WORDS:

Referential Change Syndrome; Local Ecological Knowledge; Ecosystem Services; Tropical Island; Coral reefs.

PAGES: 27
BIG AREA: Ciências Biológicas
AREA: Ecologia
SUMMARY:

The Anthropocene is era where the acceleration and intensification of multiple stressors such as overfishing are affecting the resilience and biodiversity of coral reefs unprecedentedly. Reef fish such as piscivore and herbivore trophic groups balance processes and functions through trophic interactions, and their depletion reduces predation and herbivory rates inducing trophic cascades and increased competition of macroalgae by the reef substrate. Understanding whether the Change of Reference Syndrome is occurring is essential for proposing conservation, management and maintenance measures for Ecosystem Services (ESs: provision, work and income) in these environments. We investigated, through local ecological knowledge, the perception of fishers from different generations on a tropical island about the changes that occurred in the fisheries, best days, years of capture of the largest individuals, trophic groups, ESs, main stressors. We interviewed 45 fishers and detected changes since 1952 in the decline of fisheries and catches of trophic groups in shallow and deep reefs. We evidenced declines of species such as Epinephelus itajara, Lutjanus cyanopterus, and Scarus trispinosus, which was abundant and became rare. Fisheries are sources of food, work and economic security for thousands of people. Stressors such as climate change, overfishing and the increase in tourist activities were reported to induce changes in the reefs. The creation of marine protected areas represents an important step towards the conservation of the ecosystem biodiversity of coral reefs. Fisheries management includes measures such as size selectivity of large breeding fish, protection of key species and monitoring of fishing activities. There is a wide avenue to be covered by society, public authorities and educational institutions at the global, regional and local scales to promote the sustainable development of coral reefs.

BANKING MEMBERS:
Presidente - 1639893 - CLAUDIO LUIS SANTOS SAMPAIO
Interno - 1756620 - MARCIO AMORIM EFE
Interna - 1544255 - TACIANA KRAMER DE OLIVEIRA PINTO
Externo à Instituição - ALEXANDRE SCHIAVETTI - UESC-BA
Externo à Instituição - IGOR CRISTINO SILVA CRUZ - UFBA