SLU news

Tagging project a key in stock assessment of the cod in the Baltic Sea

Published: 03 September 2018

Monica Mion, PhD student at the Department of Aquatic Resources, who just published her doctoral student’s essay, will extract both new and old data on growth and mortality of Eastern Baltic cod. Monica Mion will use the results from historical tagging experiments and a new international tagging program to provide the necessary information on growth and mortality of Eastern Baltic cod to aid solving the issues with stock assessment.

In addition, Monica Mion will investigate the effects of the changes in growth and condition on cod reproductive potential. Finally, she will try to integrate all the gained biological knowledge in new assessment models for a better management of the Baltic Sea cod.

Cod management in the Eastern Baltic Sea is currently hampered by the lack of proper assessment of the stock´s status. This is mainly caused by unreliable information of key biological parameters such as true age and growth rates in combination with changes in environmental and ecological conditions. 

Read more in Monica Mions doctoral essay Mion, M. (2018). Increasing biological knowledge for a better management of the Eastern Baltic Sea cod.

 


Contact

Monica Mion, Environmental analyst
Department of Aquatic Resources, Institute of Marine Research, SLU
monica.mion@slu.se, +46 10 478 40 87