Teses em Ecologia Aquática e Pesca (Doutorado) - PPGEAP/NEAP

URI Permanente para esta coleçãohttps://repositorio.ufpa.br/handle/2011/3501

O Doutorado Acadêmico iniciou em 2007 e pertence ao Programa de Pós-Graduação em Ecologia Aquática e Pesca (PPGEAP) do Núcleo de Ecologia Aquática e Pesca da Amazônia (NEAP) da Universidade Federal do Pará (UFPA).

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Acesso aberto (Open Access)
Comunidade de meiofauna e associações de nematoda em praias arenosas Amazônicas de macromaré: variações espaciais e sazonais
(Universidade Federal do Pará, 2016-10-27) MELO, Tatianne Pereira Gomes de; VENEKEY, Virág; http://lattes.cnpq.br/1106411624280455
Considering benthic communities few studies are related to meiobenthic communities of tropical regions with macrotidal regime. This thesis is divided in two chapters. In chaper 1 the space temporal variations of meiofauna structure and Nematoda associations were analysed in beaches with different hydrodynamics at Algodoal Island. (Para). The samplings were made during one year (September/2011, December 2011, March/2012 and June/2012) in three beaches of the island: Caixa d’Agua, Farol and Princesa. The meiofauna was composed by 14 taxons, with Nematoda and Tardigrada as dominant groups. The mean density of meiofauna at Princesa beach was significantly different from Farol beach. The result was attributed to the higher disponibility of food in the intermediate beach (Farol) and the lower disponibility of food and higher waves action in the oceanic dissipative beach (Princesa). All Nematoda descripts (density, richness, eveness and diversity) presented higher values in the protected estuarine beach Caixa d’Agua and lower in the oceanic beach. Considering stations in the beaches, higher densities occured in the middle intertidal zone and lower values in the upper intertidal zone, however richness, eveness and diversity presented maximum values on the lower intertidal zone. 131 Nematoda genera were identified. The nematofauna was significantly different between months and stations in all beaches. Water content, subtrate temperature and proportion of sand were the enviromental variables more related to Nematoda genera. In chapter 2 was verified a taxonomic review and analysys were done to identify the diversity patterns of meiofauna and Nematoda from macrotidal sandy beaches, considering different morphodynamic states and different latitudes: a literature review. Until now 46 Nematoda genera were identified in dissipative beaches, 103 in beach dominated by semi-exposted tide, 82 in protected beach, 80 in beach modified by tide and 82 in ultradissipative beaches. Concerning latitudes, 139 genera were recorded in tropical region and 107 in temperate region.
Acesso aberto (Open Access)
Conflito e enfrentamento diante das mudanças ambientais decorrentes da construção de barragem: memória coletiva e pesca artesanal no Lago da UHE de Tucuruí/PA
(Universidade Federal do Pará, 2016-04-26) SOUZA, Cleide Lima de; RAVENA CAÑETE, Voyner; http://lattes.cnpq.br/9961199993740323
This study investigates the artificial lake of the Tucuruí/PA hydroelectric power plant. The main problem is the memory about access and use of fishing resources. Some of the research questions are: does knowledge about the ecosystem prior to the construction of the reservoir allow the confrontation of the local population, that is, the artisan fishermen in relation to the highly modified environment? To what extent knowledge about water resources are incorporated to new knowledge so that different strategies of access and use of fishing resources are created? Which socioenvironmental changes interfere in the collective memory? With these questions in mind, the study aims to identify and analyze collective memory taking into consideration the changes in the natural environment due to the strong impacts of the Tucuruí/PA hydroelectric power plant, in order to identify and analyze the dynamic between the old actors (native) and new (immigrants) and possible scenarios of conflict involving artisanal fishing. The methodology include the choice of 3 of the main fish landing ports (Santa Rosa, Polo Pesqueiro and Porto do Onze) and the use of quanti-qualitative techniques and the application of 80 questionnaires and 50 semi-structured interviews as well as the gathering of documental and bibliographic information prior to the creation of the lake. The theoretical reference refers to society and nature, collective memory and artisanal fishing. The results highlight the dimension of the socioenvironmental impact caused, marked in the collective memory that allows remembering the environment before the construction of the dam (Tocantins river), in the process of confronting the new environment (artificial lake) that allows artisanal fishing in another territory, now (re) constructed by people´s collective memory. The study concludes that the way of living of these fishermen in face of the changes, which involve the transformation of a river into a lake, represents a rupture in their knowledge and in their relation with nature. Collective memory represents an essential tool for continuity, although uncertain, as it links past and present in the reconstruction of a new fishing territory.
Acesso aberto (Open Access)
Saberes da pesca em unidade de conservação: os pescadores da RDS Alcobaça no Lago da Usina Hidrelétrica de Tucuruí/PA
(Universidade Federal do Pará, 2016-09-26) ALMEIDA, Neila de Jesus Ribeiro; RAVENA CAÑETE, Voyner; http://lattes.cnpq.br/9961199993740323
This thesis deals the relationship between human beings and the environment Conservation Unit (CU). It uses, as an analytical tool, the approaches of traditional knowledge applied to the fishing population in the lake of the Tucuruí Hydroelectric Plant in the state of Pará. The work deals specifically with the fishermen everyday in the Alcobaça Sustainable Development Reserve who residing in the area after reservoir formation. The thesis analyzes how, on the fluctuation of reservoir waters originate in human action (open and close the gates of UHT), knowledge and practices of the RDS Alcobaça fishermen define, redefine and redesign in the process of access and use of fisheries resources . Search also understand and describe the various forms of interactions of the fishing population with the environment. The research methodology made use of a qualitative approach based on direct observation procedures and survey from semi-structured informal interviews. The paper concludes that fishermen can adapt the artificial environment from the redefinition of their traditional knowledge built and forged in natural environments and that even in the face of strong changes created in the Lake environment and the pressures of management of UC, the population of Alcobaça reservation can readjust their knowledge to develop their skills in fishing.

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