Global Crustacean Stock Assessment Modeling Reconciling Available Data and Complexity

A paper in the journal Fish and Fisheries takes a deeper look across models being used to assess crustacean stocks at a global scale. Researchers aimed to better understand how data availability influences model use, and how the use of these models evolved over time for four case study fisheries: American lobster in the Gulf of Maine, red king crab of Bristol Bay, northern shrimp of Skagerrak and Norwegian Deep, and Tasmanian giant crab in Australia.

Researchers found that crustacean stocks are only assessed well in a few geographical hotspots, and that the use of stock assessment models varies by both region and species. Going forward, factors such as confidence in life history processes in addition to data availability for fished species should inform model choice. In addition, collaboration and data sharing between established and emerging fisheries can further improve model choices. Such information is vital to developing global best practices for crustacean stock assessments.

Read the full paper here.

Reference

• Hodgdon, C.T., Khalsa, N.S., Li, Y., Sun, M., Boenish, R., Chen. Y. (2022) Global Crustacean Stock Assessment Modeling: Reconciling Available Data and Complexity. Fish and Fisheries. https://doi.org/10.1111/faf.12642