Neubauer, P.; Kim, K.; Middleton, D.A.J.; Cook, D.; A’mar, T. (2025). Investigating length-based management procedures for Trachurus novaezelandiae in the Bay of Plenty purse-seine fishery. New Zealand Fisheries Assessment Report 2025/49. 78 p.
This study evaluated using fish length to adjust catch limits for a jack mackerel species in New Zealand waters, with a view to developing simple length metrics to help manage this species. The effectiveness of length-based management depended greatly on biological factors like recruitment, growth, and natural mortality. Current uncertainties about these factors make length-based rules less reliable than expected. Alternative approaches using age data might provide a better way to support sustainable management of this species.
If you are having problems opening this file, you may not have the software on your computer needed to view it. Click the link below to download and install a suitable program.
