International Council for the Exploration of the Sea
WKMSEL 2010.pdf (18.41 MB)

Report of the Workshop on Sexual Maturity Staging of Elasmobranchs (WKMSEL)

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posted on 2022-11-01, 09:04 authored by ICESICES

The European Union requires member states to collect maturity data under the Data Collection Framework (DCF) but there is no international agreement on the maturity scales to be applied to elasmobranchs. Therefore, this workshop was proposed by the Planning Group on Commercial Catches, Discards and Biological Sampling and the Planning group for the Mediterranean (PGCCDBS & PGMed 2009) as part of ongoing ICES and DCF work to improve data collection, methodology and quality assurance. The objectives were to agree on a common maturity scale for elasmobranchs (sharks, skates and rays), oviparous and viviparous species, across laboratories and compare existing scales and standardize maturity determination criteria. A system was developed to convert the current scales being used in various laboratories into the proposed maturity scales developed during this workshop. The proposed macroscopic maturity scale was validated by examining results from microscopic determinations. Guidelines were developed in order to propose an optimal sampling strategy to esti-mate accurately the maturity ogives for elasmobranchs.


Published under the auspices of the following ICES Steering Group or Committee

  • ACOM

Published under the auspices of the following ICES Expert Group or Strategic Initiative

WKMSEL; Workshops - ACOM


ICES Expert Group Reports

Recommended citation

ICES. 2010. Report of the Workshop on Sexual Maturity Staging of Elasmobranches (WKMSEL), 11-15 October 2010, Valetta, Malta. ICES CM 2010/ACOM:48. 32 pp.