Inshore trawl surveys off the west coast North Island using RV Kaharoa resumed in 2018 after nearly 20 years. Where inshore strata areas now overlap a commercial trawl exclusion zone as part of the Māui dolphin Threat Management Plan they are excluded from the new survey area. Historical survey data were analysed to assess the impact of these changes on the ability to monitor adult biomass of target species. The utility of the time series was reviewed for target and some non-target species.
