
To standardize false king crab catch rates and transform them into abundance indices it is essential to count on a model that adequately describes the relation between catch per trap and fishing time. Considering data derived from research surveys carried out on board of the artisanal fleet in the Beagle Channel, assuming an asymptotic catch trend and absence of escape, to describe the relation an exponential model was applied. The Coo (asymptotic catch) and a (income rate) parameters of the model allowed to build a correction factor to transform the catches obtained with different fishing times into relative abundance indices. The model provides, besides, the optimum time to maximize catches. Para estandarizar las tasas de captura de centollón y transformarlas en índices de abundancia es esencial contar con un modelo que describa adecuadamente la relación entre captura por trampa y tiempo de pesca. Considerando los datos derivados de campañas de investigación realizadas a bordo de la flota artesanal en el Canal Beagle, asumiendo una tendencia asintótica de las capturas y ausencia de escape, se aplicó un modelo exponencial para describir la relación. Los parámetros Coo (captura asintótica) y a (tasa de ingreso) del modelo permitieron construir un factor de corrección para transformar las capturas obtenidas con diferentes tiempos de pesca en índices de abundancia relativos. Del modelo surge, además, el tiempo óptimo para maximizar las capturas. Published épocas de pesca trampas estadísticas de captura modelos relevamientos pesqueros centollón abundancia Parolamis granulosa
Abundance, Models, Paralomis granulosa, Fishery surveys, Marine environment, Catch statistics, Fishing time, Trap nets
Abundance, Models, Paralomis granulosa, Fishery surveys, Marine environment, Catch statistics, Fishing time, Trap nets
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