A software tool for monitoring legal minimum lenght of landings: Case study of a fishery in sourthern Spain

Identificadores
URI: http://hdl.handle.net/10498/14765
DOI: 10.1016/j.marpol.2011.12.002
ISSN: 0308-597X
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2012-01-24Department
Biología; Ciencias y Técnicas de la Navegación, Máquinas y Motores Térmicos y Teoría de la Señal...; Estadística e Investigación OperativaSource
Marine Policy 36 (2012) 895 - 902Abstract
The regulation of minimum legal size(MLS) of catches is a tool widely applied in the management of fisheries resources, although the MLS does not always coincide with the length at first maturit(LFM). The optimization of this management tool requires a series of quality control in fish markets and transportation. A software application has been developed to make the control of the landings of several target species easier and faster. In order to test and make this tool operational,six species of commercial interest were selected: four species of fish hand two species of bivalves. It is proposed to estimate the proportion of illegal specimens in the studied lot from the proportion of illegal individuals found in the samples taken from this lot.The input data for the application are the minimum legal size(MLS) of the species and the total length(TL)of each specimen sampled. The out put data is a statistical summary of the percentage of specimens of size less than the legal minimum(TL<=MLS)within
different confidence intervals(90%,95% and 99%). The software developed will serve as a fast,efficient and easy to manage tool that allows inspectors to determine the degree of compliance on MLS control and to make a decision supported by statistical proof on fishing goods.
Subjects
Minimum legal size; Fisheries management; Sample size; Control of landings; Small scale fisheries; Sourthern Spain; Regulación y gestión de pesquerías; Tallas mínimas; Tallas primera maduraciónCollections
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