Setting thresholds for management Advice – Environmental indicators as a tool for an integrated assessment of Eastern Baltic cod (Gadus morhua). ...

• Main Authors: Kroll, Muriel‐Marie, Möllmann, Christian, Diekmann, Rabea, Jacob, Ute, Gårdmark, Anna
• Format: Conference Object
• Language: unknown
• Published: ASC 2013 - Theme session H 2024
• Subjects: Fisheries and aquaculture; The sea and human culture and societies; Gadus morhua
• Online Access: https://dx.doi.org/10.17895/ices.pub.24753426.v1; https://ices-library.figshare.com/articles/conference_contribution/Setting_thresholds_for_management_Advice_Environmental_indicators_as_a_tool_for_an_integrated_assessment_of_Eastern_Baltic_cod_Gadus_morhua_/24753426/1

No abstracts are to be cited without prior reference to the author. Supplementing fish stock assessment with environmental indicators is the core of ecosystem‐based fisheries management. Indicator based approaches are important for fish populations that are strongly affected by climate‐induced changes in the environment, such as Baltic cod (Gadus morhua). Besides the effects of over‐fishing, reproductive success is a crucial process in cod population dynamics; hence, indicators that reliably contribute to forecast recruitment are candidates for integrated advice. Our study focuses on the identification of potential environmental indicators for cod recruitment success, including the setting of thresholds discriminating between good and bad environmental conditions for recruitment. The present study shows that (i) biotic and abiotic indicators explain variation in recruitment success of Eastern Baltic cod (BE) after accounting for the effect of spawning stock size, and that for this case study (ii) spatially ...