This project, funded by the Ministry for Primary Industries (MPI), sought to help New Zealand Plant Producers Incorporated (NZPPI) develop a structured approach for optimising use of fungicides against myrtle rust in nurseries.

Fishing for oysters in Foveaux Strait does not allow for tow-by-tow reporting of bycatch and oyster discards. These data were estimated from stratified sampling (by region and fishing effort) in February 2021. Oyster discards above and below legal size during the 2020 season were relatively low. Live bycatch, 25.0% of all dredge contents, represented 81 taxa (most of negligible weight). Non-QMS species (47.9%) mostly 4 species, bryozoans-sponges (33.4%), and QMS species (4.9%, SUR and SSC).

The Integrated Electronic Monitoring and Reporting System regulations require information on oyster catch, bycatch, and oyster discards from the Foveaux Strait oyster fishery (OYU 5) to be reported daily, at a spatial scale of 1 nm based on fishers’ logbook grid cells. Fishery independent bycatch sampling was undertaken after the February 2020 oyster and Bonamia exitiosa survey. This report describes the data on oyster discards and quantification of bycatch to fulfil the reporting requirements.

Data on the overlap and possible interaction between hoiho (yellow-eyed penguin, Megadyptes antipodes) distribution and commercial fishing activities in the South Island were compiled. Data included: species landings, and catch and effort data for the 2008–09 to 2019–20 fishing years; east coast South Island winter trawl survey data from 1991 to 2021; observer data for the fishing years 1999–2000 to 2020–21.

This report describes market sampling of swordfish and large tunas during 2014–15 to 2016–17. The programme is effective in collecting processed weights for most of the swordfish and large tunas caught in northern fisheries by domestic longliners. The percentage of fish sampled is adequate to avoid the need for scaling for the key species. Seasonal sampling of catch and spatial coverage of effort appears to be reasonably representative of the domestic fleet.

Swordfish and tunas caught by tuna longline vessels are processed at sea, preventing the measurement of lengths in port samples, but individual processed weights of the catch are kept by fish processors that export, in a relatively whole state, these fish. Processed weights can be converted to lengths so that this project effectively augments observer length frequency data with estimates based on individual processed weights of fish landed by the domestic fleet for 2017-18 to 2019-20.

The commercial eel (longfin, Anguilla dieffenbachii; shortfin, A. australis) monitoring programme captures processor recorded data from individual landings throughout New Zealand on eel catch weights, species composition, size grades, and catch location at the catchment level. This report provides detailed results from the 2018–19 to 2020–21 fishing years and also examines trends in the North Island and South Island time series from 2003–04 to 2020–21.