Departamento de Ciências Biológicas, Programa de Pós Graduação em Ciências Biológicas (Biologia Animal), Universidade Federal do Espírito Santo, Mucuri, Brazil.
Departamento de Ciências Agrárias e Biológicas, Programa de Pós Graduação em Biodiversidade Tropical (Ecologia), Universidade Federal do Espírito Santo/Centro Universitário Norte do Espírito Santo-UFES/CEUNES, São Mateus, Brazil.
J Ethnobiol Ethnomed. 2017 Aug 23;13(1):46. doi: 10.1186/s13002-017-0174-7.
Brazilian mangrove forests are widely distributed along the coast and exploited by groups of people with customs and habits as diverse as the biology of the mangrove ecosystems. This study identifies different methods of extracting crabs that inhabit the mangrove belts; some of these activities, such as catching individual crabs by hand, are aimed at maintaining natural stocks of this species in Mucuri (south Bahia), Brazil.
In the studied community, illegal hunting activities that violate Brazilian legislation limiting the use of tangle-netting in mangrove ecosystem were observed.
According to our observations, fishermen, to catch individual crabs, use the tangle-netting technique seeking to increase income and are from families that have no tradition of extraction.
This analysis leads us to conclude that catchers from economically marginalised social groups enter mangroves for purposes of survival rather than for purposes of subsistence, because the catching by tangle-netting is a predatory technique. Tangle-netting technique increase caught but also increases their mortality rate. We emphasise that traditional catching methods are unique to Brazil and that manual capturing of crab should be preserved through public policies aimed at maintaining the crab population.
巴西的红树林森林广泛分布于沿海地区，并被具有多样习俗和习惯的人群所利用，这些习俗和习惯与红树林生态系统的生物学一样多样化。本研究确定了从红树林带中提取栖息蟹类的不同方法；其中一些活动，如徒手捕捉单个螃蟹，旨在维持巴西巴伊亚南部穆库里（Mucuri）地区该物种的自然种群数量。
在研究社区中，观察到了非法狩猎活动，这些活动违反了巴西立法，限制了在红树林生态系统中使用缠绕网。
根据我们的观察，渔民为了捕捉单个螃蟹，使用缠绕网技术，旨在增加收入，并且来自没有提取传统的家庭。
这项分析使我们得出结论，来自经济边缘化社会群体的捕捞者进入红树林是为了生存而不是为了生计，因为用缠绕网捕捉是一种掠夺性技术。缠绕网技术增加了捕获量，但也增加了死亡率。我们强调，传统的捕捞方法是巴西特有的，应通过旨在维持螃蟹种群的公共政策来保护手工捕捉螃蟹的方法。
