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

Author

Listed:
  • Cabrera, R.
  • Valero-Franco, C.
  • Piniella, F.
  • Díaz, C.
  • Gómez-Cama, M.C.
  • Soriguer, M.C.
  • Hernando, J.A.

Abstract

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 maturity (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 and 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 output 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.

Suggested Citation

  • Cabrera, R. & Valero-Franco, C. & Piniella, F. & Díaz, C. & Gómez-Cama, M.C. & Soriguer, M.C. & Hernando, J.A., 2012. "A software tool for monitoring legal minimum length of landings: Case study of a fishery in southern Spain," Marine Policy, Elsevier, vol. 36(4), pages 895-902.
    • Handle: RePEc:eee:marpol:v:36:y:2012:i:4:p:895-902
    DOI: 10.1016/j.marpol.2011.12.002
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