Martin Pastoors

PFA horse mackerel research

27/6/2017

Develop new information on horse mackerel

Stock identity

Stock indicators

Genetic analysis

Chemical analysis

Vessel quality analysis

Vessel catch rates

New survey data

Genetic samples during spawning time (2015-2016)

Genetic plan 2017

• Collect one more year of genetic samples

• Analyse genetic material, based on HER6a techniques

Can we use commercial CPUE as indicator of abundance for horse mackerel?

Data: skipper’s ‘diaries’ (haul by haul)

Vessels involved

Decoding the diary entries

Conclusions

• More work needed on analysis of commercial catch rates

• To do:

– Hire post-doc to carry out geospatial analysis (2017)

Conclusions

Stock identity

Stock indicators

Genetics

Potentially powerful method; One more year of dataCarry out analysis

Chemical analysis

Discontinued

Batch analysis

Check progress.

Vessel catch rates

Increasing number of catch histories available. Hire geospatial modeller

New survey data

French CGFS included in assessment.

mpastoors@pelagicfish.eu

Working with industry to improve science and management