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The century-old mangrove crab Ucides cordatus Linnaeus, 1763 harvesting is a traditional activity of Northeastern Brazilian coastal communities, who use it as food, source of income and cultural reference. The extractivism and marketing of this crustacean is essential for the socio-economic development of the states of Maranhão, Piauí and Ceará. The aim of this study was to carry out the monitoring of harvesting and landing of the mangrove crab in Ilha Grande, PI. Interviews were conducted with crab gatherers and transporters to obtain information about harvesting, landed volume, market price and destination of commercialized crab. The main capture spots were located at the Maranhão part of the Parnaíba River Delta. Crab gatherers are active 5.07 times a week and spend an average of 6 hours in mangrove. The average number of crabs collected per gatherer/day was 77.0. The quantity landed in daytime period was 63,628 crabs/month, totalizing 714,543 crabs/ year. The average price traded was USD 0.19/crab. The production chain original arTiCle Nauplius, 26: e2018020 CORRESPONDING AUTHOR Fabiola Helena dos Santos Fogaça fabiola.fogaca@embrapa.br SUBMITTED 03 October 2017 ACCEPTED 13 March 2018 PUBLISHED 01 November 2018 DOI 10.1590/2358-2936e2018020 All content of the journal, except where identified, is licensed under a Creative Commons attribution-type BY. orcid.org/0000-0001-8055-4406

nauplius

Monitoring mangrove crab Ucides cordatus Linnaeus, 1763 (Crustacea: Ucididae) landing in the Parnaíba River Delta: fishing characteristics, social and economic aspects