Argentina: They suggest closing part of Management Unit B for a year to ensure the survival of scallop cohorts

Published 2022년 3월 10일

Tridge summary

Researchers Silvana Campodónico and Mariana Escolar have recommended not enabling fishing in certain areas of Management Unit B in the Patagonian scallop fishery for 2022, due to recruitment failures and the need to protect non-commercial specimens. The researchers suggest limiting catches in the short term to allow for medium-term catches and the evolution of cohorts, while also ensuring the survival of the 2017-2018 and 2018-2019 cohorts. They have made their recommendations based on data obtained in an evaluation campaign in 2021, which indicated a slight increase in total and commercial biomass but also indicated unsuccessful recruitment in the 2019-2020 and 2020-2021 periods.

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Original content

Researchers from the INIDEP Benthic Program suggested closing a zone of the polygon that makes up Management Unit B in the Patagonian scallop fishery during the current year. The suggestion is part of the maximum allowable catch recommendations for 2022 made by Silvana Campodónico and Mariana Escolar, after evaluating the biomass and describing the structure of lengths that were analyzed with data obtained in the evaluation campaign in said MU on board the ship Víctor Angelescu between last August 21 and September 13. Management Unit B is located in a diagonal area between 38º and 39º30´ S and 56º30´ and 55º W. The results of the evaluation shaped the Technical Report 25/22. The Patagonian scallop is a bivalve mollusk that is distributed throughout the Magellanic biogeographical province. In the Southwest Atlantic, the highest densities are distributed along the 100-meter isobath from Cape Horn at 56º South latitude to the Río de la Plata, 36º 15' South latitude, coinciding with ...

Source: Revistapuerto