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|Title:||Profitability and sustainable use of traps for amazon shrimp (Macrobrachium amazonicum) from the Amazon River.|
|Authors:||MELO, O. de A.|
SILVA, L. M. A. da
SOUSA, P. H. C.
SILVA, S. L. F.
LIMA, J. de F.
SANTOS JÚNIOR, L. C. F. dos
FERNANDES, L. G.
SILVA, K. C. de A.
CINTRA, I. H. A.
|Affiliation:||ODAIR DE ALMEIDA MELO, UFRA; LUÍS MAURICIO ABDON DA SILVA, IEPA; PEDRO HENRIQUE CAMPOS SOUSA, UFRA; SIRLEY LUZIA FIGUEIREDO SILVA, IEPA; JO DE FARIAS LIMA, CPAF-AP; LUIZ CLAUDIO FEITOZA DOS SANTOS JÚNIOR, UEAP; LIBNA GOMES FERNANDES, UEAP; KÁTIA CRISTINA DE ARAÚJO SILVA, UFRA; ISRAEL HIDENBURGO ANICETO CINTRA, UFRA.|
|Citation:||Journal of Agricultural Studies, v. 8, n.3, p. 616-632, 2020.|
|Description:||The objective of this study was to evaluate the profitability, productivity and selectivity of traps used for the capture of freshwater prawn using different spacings between the laths. This study was developed in the estuary of the Amazon River near Santana island, Amapá, Brazil. Collections were conducted using traps called "matapi", which are cylindrical shrimp traps made with wooden slats or laths, with funnel shaped entrances at both sides, and the spacings between the laths ranged between 1 to 10mm in 1mm increments. Each trap was covered with a net called a "matapi", or trap cover. The length of carapace in centimeters and the weight in grams were measured for all specimens. The shrimp were categorized into small, medium, and large size classes. Selectivity curves were used to determine selectivity for the dif ferent lath spacings. Traps with lath spacing below 7mm should be considered as being predatory because they allow for the capture of small individuals, with more than 50% of these being captured using spacings from 1 to 5mm. Despite the fact that spacings between 8 and 10mm captured lower quantities of shrimp, this enabled the capture of larger specimens with a similar total biomass yield, and this spacing is considered to be the most ecologically and economically viable. In order to minimize the capture of young shrimp without drastically affecting economic yield, it is suggested that shrimp trap lath spacings be above 6mm.|
Small scale fishery
|Type of Material:||Artigo de periódico|
|Appears in Collections:||Artigo em periódico indexado (CPAF-AP)|
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