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Description of catching methods for deepsea-living shrimps, in Northern Brazil, through the Proarrasto project The industrial fishing for shrimps has been on the increase since the 1950’s. At the same time, conditions for commercialization, local market prices and increase of the demand of fish products by richer countries (particularly, USA and Japan) accounted for the quick growth of the fishing pressure on exploited stocks. The main objective of this paper is to describe the catching methods applied to deepsealiving shrimp populations through experimental trawl fishing carried out on the 1 Pesquisador Cepnor/Ibama. Email: mutsuo7@hotmail.com Bol. Téc. Cient. Cepnor, Belém, v. 5, n. 1, p. 141-154, 2005 DESCRIÇÃO DOS MÉTODOS DE CAPTURA DOS CAMARÕES DE PROFUNDIDADE... 142 continental shelf and slope off Northern Brazil, in depths from 236 m to 1,246 m. Two fishing boats, named Mar Maria and Noé, made use of five types of nets and three types of otter boards. Net # 1 was rigged to drag over most bottom substrates. Net # 2 was rigged for catching demersal resources, showing the same features and dimensions as the nets used by the Spanish fleet. Net # 3 was made after the features of the nets used for catching the deep-sea shrimp off French Guiana and Suriname. Net # 4 was also planned with the same features as those used by the Spanish fleet, but 25% smaller. Net # 5 was planned for the fishing activities by vessels rigged for stern otter trawling operations and having the same characteristics as Net # 4. The net with better revenue (CPUE) was the # 2 one, with a catch rate almost twice as large as the second more productive one (4 SM net).

DESCRIÇÃO DOS MÉTODOS DE CAPTURA DOS CAMARÕES DEPROFUNDIDADE, NA COSTA NORTE DO BRASIL, DURANTE O PROJETOPROARRASTO