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Artisanal fishing and the franciscana (Pontoporia blainvillei) in Southern Brazil: ethnoecology from the fishing practice

Published online by Cambridge University Press:  28 December 2016

Camilah Antunes Zappes ,
Renata Montalvão Gama ,
Camila Domit ,
Carlos Eduardo Novo Gatts  and
Ana Paula Madeira Di Beneditto
Camilah Antunes Zappes*
Affiliation:
Laboratório de Geografia Física, Departamento de Geografia de Campos, Universidade Federal Fluminense, Rua José do Patrocínio, 71, Campos dos Goytacazes/RJ 28010-385, Brasil
Renata Montalvão Gama
Affiliation:
Associação MarBrasil, Rua Ingá, s/n, Pontal do Paraná, PR, Caixa Postal 48, Brasil
Camila Domit
Affiliation:
Laboratório de Ecologia e Conservação, Centro de Estudos do Mar, Universidade Federal do Paraná, Av. Beira Mar, s/n, Pontal do Sul, PR, Caixa Postal 61, Brasil
Carlos Eduardo Novo Gatts
Affiliation:
Laboratório de Ciências Físicas, Centro de Ciência e Tecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, RJ 28013-602, Brasil
Ana Paula Madeira Di Beneditto
Affiliation:
Laboratório de Ciências Ambientais, Centro de Biociências e Biotecnologia, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Av. Alberto Lamego, 2000, Parque Califórnia, Campos dos Goytacazes, RJ 28013-602, Brasil
*
Correspondence should be addressed to: C.A. Zappes, Laboratório de Geografia Física, Departamento de Geografia de Campos, Universidade Federal Fluminense, Rua José do Patrocínio, 71, Campos dos Goytacazes/RJ 28010-385, Brasil email: [email protected]
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Abstract

This study aimed to describe the ethnoecology of the franciscana (Pontoporia blainvillei) using the traditional knowledge of artisanal fishermen in the villages of Peças Island (VPI) and Superagui Island (VSI) in the World Heritage listed Paranaguá Estuarine Complex, Brazil. Between March and September 2012, 90 fishermen were interviewed (VPI – 40; VSI – 50) using a semi-structured questionnaire. Using Fuzzy logic (MATLAB 7.6) it was verified the species is easily recognized by body size, colour and occurrence area (VPI – 87.5%; VSI – 38.0%). Fishermen most frequently identified adults and young franciscanas in groups of two to five individuals (VPI – 40.0%; VSI – 58.0%). Adults were sighted throughout the year, while the young were restricted to summer and winter. Five common behavioural ethno categories were described: ‘eat’ (VPI – N = 15; VSI – N = 1); ‘float/sink/dive’ (VPI – N = 34; VSI – N = 12); ‘breathe’ (VPI – N = 11; VSI – N = 5); ‘mothers surrounding the shoal, play caught up and the youth captures’ (suggesting care parental related with feeding of infant) (VPI – N = 1; VSI – N = 2); and ‘to play’ (VPI – N = 6; VSI – N = 1). The information from the fishermen highlights the use of the area by franciscana for feeding and reproduction and these data are comparable with the literature. These results extend the knowledge about the species in an area of ecological interest and the traditional knowledge, but also illustrate the benefits of engaging fishermen to promote collaboration in scientific and management processes.

Keywords

Artisanal fishingdolphinimpactsprotected areastraditional knowledgefishermenSouth-west Atlantic Ocean
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 98 , Issue 4 , June 2018 , pp. 867 - 877
Copyright
Copyright © Marine Biological Association of the United Kingdom 2016 

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