• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 1
  • Tagged with
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • 1
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Geotecnologia aplicada ao estudo das artes fixas da pesca artesanal na zona costeira do Baixo Sul da Bahia e Rec?ncavo baiano

Souza, Ivonice Sena de 30 January 2018 (has links)
Submitted by Ricardo Cedraz Duque Moliterno (ricardo.moliterno@uefs.br) on 2018-07-11T20:09:12Z No. of bitstreams: 1 DISSERTA??O_IVONICE_SENA_SOUZA_VERS?O_FINAL.pdf: 8972488 bytes, checksum: 6bf18b2a06a00a2f8151129893cfa992 (MD5) / Made available in DSpace on 2018-07-11T20:09:12Z (GMT). No. of bitstreams: 1 DISSERTA??O_IVONICE_SENA_SOUZA_VERS?O_FINAL.pdf: 8972488 bytes, checksum: 6bf18b2a06a00a2f8151129893cfa992 (MD5) Previous issue date: 2018-01-30 / Artisanal fishing is gaining prominence in the world scenario and is responsible for much of the fish production, especially in the tropical regions. The small-scale fishing industry benefits little from geotechnology. The objective of this work was to test the use of geotechnologies in the study of fixed fishing gears in the Coastal Zone of the Southern Bahia and Rec?ncavoBaiano Regions. We used high resolution remote sensing images of Google Earth in the identification, mapping, classification and measurement of fixed fishing gear, specifically the fishing rods and the fishing grounds. The structures of these fishing gear have been identified in the best available images and flagged with the Google Earth markers. In the Southern Lowlands, 152 camboas were identified. In the Rec?ncavoBaiano Region, 589 fixed fishing gears were identified for two different types of fishing gear, the fishing fence and the V-shaped cambo. 163 camboas were located in the area of the Marine Extractive Reserve of Bay of Iguape and 426 fishing grounds in the western region of the Bay of All Saints. From the images of Google Earth, it was possible to identify 16 types (different arrangements of the components, with recurrent geometries) for the Southern Lowlands. For the study area of the Lower South, to facilitate the structuring of the data, the area was subdivided into three subareas. For the subarea two were conducted semi-structured interviews with fishermen and camboas owners for the characterization of fishing and the different types of shrimp. There was also the follow-up of some fisheries (fishing) of shrimp. The structures of some samples of the fixed fishing gear types were measured, considering the following measures: the maximum length of the spy the entrance of the room, hallway or camarinha. The use of Google Earth images has enabled a good result in the identification, mapping, classification and measurement of fixed gears of artisanal fishing. The results show that the recent advances in geotechnology and the free access to high resolution satellite images have great potential for aid in the process of recognition and delimitation of artisanal fisheries, as well as in the study of fixed fishing gear, the use of natural resources and the occupation of marine and coastal areas by fishing activity. / A pesca artesanal vem ganhando destaque no cen?rio mundial e ? respons?vel por boa parte da produ??o do pescado, sobretudo nas regi?es tropicais. O setor da pesca artesanal pouco se beneficia com as geotecnologias. O objetivo do trabalho foi testar o uso das geotecnologias no estudo de artes fixas de pesca na Zona Costeira das Regi?es do Baixo Sul da Bahia e Rec?ncavo Baiano. Foram utilizadas imagens de sensoriamento remoto de alta resolu??o do Google Earth na identifica??o, mapeamento, classifica??o e mensura??o das artes fixas de pesca, especificamente as camboas (currais) de pesca e os cercos de pesqueiros. As estruturas destes apetrechos de pesca foram identificados nas melhores imagens dispon?veis e sinalizados com os marcadores do Google Earth. Na regi?o do Baixo Sul foram identificadas 152 camboas. Na Regi?o do Rec?ncavo Baiano foram identificadas 589 artes fixas de pesca de dois tipos de apetrechos diferentes, o cerco de pesqueiro e a camboa em forma de ?V?. Foram localizados 163 camboas na ?rea da Reserva extrativista Marinha da Ba?a do Iguape e 426 cercos de pesqueiros na regi?o oeste da Ba?a de Todos os Santos. A partir das imagens do Google Earth foi poss?vel identificar 16 tipos (diferentes arranjos das componentes, com geometrias recorrentes) de camboas para a Regi?o do Baixo Sul. Para a ?rea de estudo da regi?o do Baixo Sul, para facilitar ? estrutura??o dos dados, a ?rea de estudo foi subdividida em tr?s sub?reas. Para a sub?rea dois foram realizadas entrevistas semiestruturadas com pescadores e donos de camboas para a caracteriza??o de pesca e dos diferentes tipos de camboas. Tamb?m foi realizada o, acompanhamento de algumas pescarias (despesca) de camboas. Foram medidas as estruturas de algumas amostras dos tipos de arte fixa de pesca, considerando as seguintes medidas: o comprimento m?ximo da espia a entrada da sala, morredor ou camarinha. O uso das imagens do Google Earth possibilitou um bom resultado na identifica??o, mapeamento, classifica??o e mensura??o das artes fixas da pesca artesanal. Os resultados alcan?ados permitem afirmar que os recentes avan?os das geotecnologias e o acesso gratuito a imagens de sat?lite de alta resolu??o apresentam grande potencial de aux?lio no processo de reconhecimento e delimita??o dos territ?rios da pesca artesanal, assim como no estudo das artes fixas de pesca, monitoramento do uso dos recursos naturais e da ocupa??o dos espa?os marinhos e costeiros pela atividade pesqueira.

Page generated in 0.1047 seconds