Seasonality in the condition of megrim and its somatic growth in Cantabrian Sea and Galician waters
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AuthorsLanda, J. (Jorge); Fontenla-Giráldez, J. (Jorge); Gancedo, R.M. (Rosa María); Reparaz, M. (María); Rodríguez-Fernández, L. (Lorena); Castro-Loehmann, B. (Begoña); Loureiro-Caride, M.I. (María Isabel); Antolínez, A. (Ana); Hernández, C. (Carmen)
weight conversion factor
The megrim (Lepidorhombus whiffiagonis) is a bottom-living species, important part of the benthic community in the Cantabrian Sea, and commercially exploited by the European fisheries. Robust and updated biological information of megrim is required for a deeper knowledge of its life history traits and an adequate stock assessment process and management. Condition factor, weight conversion factors and length-weight relationships are analyzed in Cantabrian Sea and Galician waters based on 7458 specimens from a time-series of 22 years (1998-2019) of commercial landings and from a research survey (2017). The influence of factors as the season, year, multi-year period, fish sex and maturity in the Le Cren’s condition factor (K) were analyzed. A clear seasonal pattern in K, more prominent in females was found, with the lowest condition in April (after the spawning period), and a progressive increase to the highest values from November to February, showing the relevance of K as indicator of the ...
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