Banca de DEFESA: MAURO SERGIO PINHEIRO LIMA

Uma banca de DEFESA de DOUTORADO foi cadastrada pelo programa.
DISCENTE : MAURO SERGIO PINHEIRO LIMA
DATA : 18/08/2017
HORA: 08:30
LOCAL: Anfiteatro das Aves, CB
TÍTULO:

COMPLEMENTARY KNOWLEDGE OF THE SPACE-TEMPORAL DISTRIBUTION OF FISHERY RESOURCES CONSTITUTED BY SCIENCE AND FISHERMEN

PALAVRAS-CHAVES:

Small scale fisheries, local ecological knowledged, scientific knowledged, spatial distribution of resources

PÁGINAS: 118
GRANDE ÁREA: Outra
ÁREA: Ciências Ambientais
RESUMO:

The loss of human connection with nature is observed in fishing with the reversal of ethical values of food security, driven by the development of the economic market, which has resulted in unsustainability of fish stocks worldwide. The fisheries science in recent decades has highlighted the effectiveness of the ecosystem approach, which integrates the fishers' local ecological knowledge (LEK) and scientific knowledge (SK), the construction of adequate and additional information to reduce time, social costs and conflicts. This study investigated the spatial and seasonal distribution of fishing resources through two distinct approaches to knowledge of fishing in an interdisciplinary way. In the first, SK was used in direct observations on board the bottom gillnet fishing fleet, for records of species composition and environmental variables. In the second approach, the application of interviews with fishing masters sought to understand in LEK the dynamics of fishing with this type of gillnet and the common patterns of fishers' perception of fishing resources distribution. Chapter 1 provides a general understanding of the catches observed by the SK approach, with attention to spatial distribution of biomass and species diversity in both shallow and deep areas. In Chapter 2, the influence of environmental factors on the occurrence and spatial distribution of the adult blue runner in the reproductive life stage was analyzed, being this species the most observed in the captures with the bottom-set gillnet in the SK approach. Chapter 3, the fishers' LEK was analyzed the different dynamics of use boats, net and fishing areas, throughout the year, in order to understand what most influences the choices of fishing areas and the impacts of these options. In Chapter 4, the integrated approach of SK and LEK with information common to the dynamics of fishing and distribution of the three main species caught with this fishing gear, showed similar and complementary patterns in the distribution of these species. The two approaches (SK and LEK) showed that gillnet launches are concentrated in shallow areas up to 20m deep, with low species diversity and biomass, mainly near the metropolitan region of the State, where the fishing effort was higher. The deepest and most distant areas of the coast were the most productive and diverse. However, access to these areas is limited by environmental factors for most of the year, with effects in the greatest impact on discards and accidents with sea turtles. Ecosystem management of bottom-set gillnet fisheries should take into account both the distribution of fish resources as a function of fishing effort and the influence of fishers' choices on fishing areas that are admittedly less productive.

MEMBROS DA BANCA:
Interno - 1279472 - ELIANE MARINHO SORIANO
Presidente - 1149351 - JORGE EDUARDO LINS OLIVEIRA
Externo à Instituição - JOSE DA SILVA MOURÃO - UEPB
Externo à Instituição - JOSE GARCIA JUNIOR - IFRN
Externo ao Programa - 1177742 - RONALDO ANGELINI