WKAEPM

WKAEPM

Workshop on Adult Egg Production Methods Parameters estimation in Mackerel and Horse Mackerel

 

 

WKAEPMWKAEPMTrueMaria KortaEOSGmkorta@azti.esWorkshop on Adult Egg Production Methods Parameters estimation in Mackerel and Horse Mackerel

22-26 November 2021
San Sebastian, Spain

​​​​​​​​​​​​​​​​​​​​​​Adult reproductive parameters estimation is fundamental for conversion of egg production into spawning stock biomass of western and southern mackerel and horse mackerel stock components. Both (batch) fecundity and atresia estimation as well as spawning fraction estimation are carried out using histological and image analysis methods, and the analysis and interpretation of these materials requires standardization across participating institutes.  

The standardization in this aspect has been carried out in workshops since 2001 which have been extremely helpful for agreed practices among institutes. The experiences gathered during these workshops will be extended during WKAEPM. This workshop will refine the developed methodologies and clarify established calculations for adult parameters estimation to obtain unbiased biomass output from the egg surveys.

The workshop will update the survey manual with regards to any new findings in the fecundity, atresia, and spawning fraction estimation from sampling as well as the evaluation procedures and final calculations, for appropriate quality assurance purposes.​

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