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Deep-sea shrimps (Decapoda: Aristeidae): new targets of the deep-water trawling fishery in Brazil


 
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1. Title Title of document Deep-sea shrimps (Decapoda: Aristeidae): new targets of the deep-water trawling fishery in Brazil
 
2. Creator Author's name, affiliation, country Paulo Ricardo Pezzuto; Universidade do Vale do Itajaí; Centro de Ciências Tecnológicas da Terra e do Mar;
 
2. Creator Author's name, affiliation, country José Angel Alvarez Perez; Universidade do Vale do Itajaí; Centro de Ciências Tecnológicas da Terra e do Mar;
 
2. Creator Author's name, affiliation, country Roberto Wahrlich; Universidade do Vale do Itajaí; Centro de Ciências Tecnológicas da Terra e do Mar;
 
3. Subject Discipline(s)
 
3. Subject Keyword(s) deep-sea fisheries;deep-sea shrimps;bottom trawling;Aristeidae;Brazil
 
4. Description Abstract Following the recent expansion of the Brazilian fishery to slope fishing grounds, a new directed trawl fishery for aristeid shrimps emerged since mid 2002. Aristaeopsis edwardsiana has been the main component of the catches attaining 88.4% of total shrimp production. Aristaeomorpha foliacea and Aristeus antillensis have composed significantly smaller fractions of the landings (9.8 % and 1.8 % respectively). Two main grounds were located in the southeastern region (ca. 19º - 25ºS) and one in the northern border of the Brazilian EEZ (ca. 4º30' - 5ºN). Catches have been extremely concentrated between the 700 and 750 m isobaths. Mean catch rates of A. edwardsiana oscillated between 6.5 and 9.7 kg.h-1. The other species have been caught at considerably lower rates (0.1 - 0.6 kg.h-1 and 0.1 - 1.3 kg.h-1, respectively). A seasonal pattern in A. edwardsiana catches is suggested, with maximum values obtained between July and December. While largely directed to the shrimps, incidental catches of the royal crab (Chaceon ramosae) attained, on average, 22 % of the total landings.
 
5. Publisher Organizing agency, location Universidade de São Paulo. Instituto Oceanográfico
 
6. Contributor Sponsor(s)
 
7. Date (YYYY-MM-DD) 2006-09-01
 
8. Type Status & genre Peer-reviewed Article
 
8. Type Type
 
9. Format File format PDF
 
10. Identifier Uniform Resource Identifier https://www.revistas.usp.br/bjoce/article/view/38442
 
10. Identifier Digital Object Identifier (DOI) http://dx.doi.org/10.1590/S1679-87592006000200003
 
11. Source Title; vol., no. (year) Brazilian Journal of Oceanography; Vol 54, No 2-3 (2006)
 
12. Language English=en
 
13. Relation Supp. Files
 
14. Coverage Geo-spatial location, chronological period, research sample (gender, age, etc.)
 
15. Rights Copyright and permissions Copyright (c)