Banca de DEFESA: NIVALDO PATRICIO DA COSTA JUNIOR

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
STUDENT : NIVALDO PATRICIO DA COSTA JUNIOR
DATE: 30/09/2025
TIME: 08:00
LOCAL: Laboratório de Informática - NECLIM
TITLE:

FLYING FISH (HIRUNDICHTHYS AFFINIS) FISHERY AND ITS RELATIONSHIP WITH THE OCEAN-ATMOSPHERE SYSTEM ON THE NORTHERN COAST OF RIO GRANDE DO NORTE

KEY WORDS:

artisanal fishery, flying fish, remote sensing

PAGES: 88
BIG AREA: Ciências Exatas e da Terra
AREA: Geociências
SUBÁREA: Meteorologia
SPECIALTY: Climatologia
SUMMARY:

The artisanal fishery of the flying fish (Hirundichthys affinis) constitutes an activity of significant socioeconomic importance for the northern coast of Rio Grande do Norte, with its roe being the main product of commercial value. This study investigated the relationship between the fishery's output and the ocean-atmosphere system variables in the region, utilizing fish landing data from 2011-2023, fleet spatial data from 2018-2023, and time series of oceanographic (sea surface temperature - SST, chlorophyll-a, carbon, fluorescence) and atmospheric (wind, precipitation) data. The methodology integrated the zoning of fishing areas, correlation analyses, and the application of PCA followed by multiple linear regression to identify the environmental patterns that influence fishery production. The results indicated a 336% increase in fishing effort from 2011 to 2023, along with an 80% decline in Catch Per Unit of Effort (CPUE) since its peak in 2014. Multivariate analysis demonstrated that in the more remote oceanic areas (Areas 1 and 2), conditions associated with higher primary productivity and certain wind and rainfall patterns had a negative impact on fishing efficiency. In contrast, this relationship was inverted in the most coastal area (Area 3). It is concluded that the flying fish fishery may be facing signs of over-exploitation within a context of environmental change, such as the 0.5°C SST warming observed during the period. These results reinforce the necessity for adaptive management strategies that account for climatic influences to guarantee the sustainability of the activity.

 

COMMITTEE MEMBERS:
Interna - ***.212.764-** - DANIELE TÔRRES RODRIGUES - UFPI
Interno - 2276514 - MARCIO MACHADO CINTRA
Interno - 3217859 - PEDRO RODRIGUES MUTTI
Externa à Instituição - RAYANNE LEITÃO CLAUDINO