Workshop on estimation of mortality of marine mammals due to bycatch (WKMOMA)

• Main Authors: Bigey, Fiona, Brasseur, Sophie, Ferreiro, Lucía Cañas, Carruel, Guillaume, Couperus, Bram, von Dorrien, Christian, Dubroca, Laurent, Kavanagh, Ailbhe, Kindt-Larsen, Lotte, Kingston, Al, Lyssikatos, Marjorie, Macleod, Kelly, Marçalo, Ana, Mugerza, Estanis, Northridge, Simon, Peltier, Hélène, Penas, Camilo Saavedra, Taylor, Nikki, Tobin, Declan
• Other Authors: Königson, Sara, Sigurðsson, Guðjón Már
• Format: Book
• Language: English
• Published: International council for the exploration of the sea (ICES)/Conseil international pour l'exploration de la mer (CIEM) 2022
• Subjects: Harbour porpoise; Phocoena phocoena
• Online Access: https://research-portal.st-andrews.ac.uk/en/publications/522a9fe8-c322-459f-927b-a8439bc2568d; https://doi.org/10.17895/ices.pub.9257

The Workshop on estimation of MOrtality of Marine MAmmals due to Bycatch (WKMOMA) addressed a special request from OSPAR regarding the bycatch mortality of marine mammals (harbour porpoise Phocoena phocoena; common dolphin Delphinus delphis; and grey seal Halicho-erus grypus) within the OSPAR maritime area. The objective of the workshop was to generate bycatch rates and associated confidence intervals for static and towed gears for relevant species within the three species assessment areas defined by OSPAR. Subsequently, the species-specific bycatch mortality estimates in the defined assessment area were requested. OSPAR provided thresholds for the relevant species/assessment units and ICES were tasked to compare the mortality estimates to the provided thresholds and identify any critical issues relevant for the comparison.