Applying length-based assessment methods to fishery resources in the Bay of Biscay and Iberian Coast ecoregion: Stock status and parameter sensitivity.
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AuthorsCousido-Rocha, M. (Marta); Cerviño, S. (Santiago); Alonso-Fernández, A. (Alexandre); Gil, J. (Juan); González-Herraiz, I. (Isabel); Rincón-Hidalgo, M. (Margarita); Ramos, F. (Fernando); Rodríguez-Cabello, C. (Cristina); Sampedro-Pastor, P. (Paz); Vila, Y. (Yolanda); Pennino, M.G. (María Gracia)
Length-based methods have been widely applied to estimate biological parameters and understand the dynamics of marine resource populations within data-limited stocks. However, to date few studies have tested the sensitivity of parameters in length-based methods examining stocks with different traits and fishery contexts. In the Bay of Biscay and the Iberian Coast ecoregion, SE Europe (International Council for the Exploration of the Sea - ICES, Divisions 8 and 9a), many commercial resources are considered data-limited, and either little is known about their fisheries stock statuses or gaps remain in currently available assessments. Therefore, this study focuses on two of the most used length-based methods, which ICES considers to be the most appropriate to evaluate data-limited stocks, namely length-based indicators (LBI) and the length-based spawning potential ratio (LBSPR). Both methods have been applied to assess the stock statuses of various relevant species in the study area, such ...
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