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Incorporating Spatial Heterogeneity and Environmental Impacts Into Stock-Recruitment Relationships for Gulf of Maine Lobster

January 19, 2022

A study of how spatial diversity and environmental effects can be incorporated into functional stock-recruitment relationships (SRRs).


Functional stock-recruitment relationships (SRRs) are often difficult to quantify and can differ over space. Additionally, climate change adds to the complexity of recruitment dynamics. 

This paper's aim was to incorporate spatial heterogeneity and environmental effects on productivity in SRRs with American lobster in the Gulf of Maine (GOM) as a case study. 

Results showed that temperature significantly impacted recruitment. Changes in temperature mediated productivity differed between the eastern and western GOM. Our study demonstrated that the incorporation of spatial heterogeneity and environmental effects impacts our understanding of SRRs. These methods can be applied to other species to understand recruitment dynamics influenced by climate change.

Mazur MD, Tanaka KR, Shank B, Chang J, Hodgson CT, Reardon KM, Friedland KD, Chen Y. 2022. Incorporating spatial heterogeneity and environmental impacts into stock-recruitment relationships for Gulf of Maine lobster. ICES Journal of Marine Science.0:1-11.  https://doi.org/10.1093/icesjms/fsab266.

Last updated by Pacific Islands Fisheries Science Center on 01/25/2022

Recruitment Processes Program