MPI publishes a diverse range of publications on all aspects of the primary industries, biosecurity, animal welfare, food safety, and our work.
This database contains MPI publications – mostly from the past 3 years. Use the filter function to find the publication you're looking for.
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This report describes the results of blue cod (Parapercis colias) fixed- and random-site potting surveys carried out concurrently in Marlborough Sounds in September/October 2017. Estimates are provided for population abundance, size and age structure, sex ratio, total mortality (Z), and spawner-per-recruit ratio. This is the eighth survey in the fixed-site survey time series that began in 1995, and the second full random-site survey.
For seven lobster stocks (Jasus edwardsii), surplus production was calculated from total catch, standardised CPUE and catchability and their errors. Production declined in all stocks, 1979–2015. A parabolic model predicted production from biomass and sea temperature with various lags between temperature and production. Temperature and biomass explained some but not all variability in annual production. Declining lobster productivity has implications for industry, stock assessment and management.
This document presents the documentation for the collation of data used in the 2017 stock assessment of rock lobsters in CRA 2. Data sets described include catch estimates from the commercial, recreational, customary and illegal components of the fishery, standardised catch per unit of effort (CPUE), size data (LFs) from observer catch sampling and voluntary commercial fishery logbooks, and tag-recapture data.
This report updates the available data on striped marlin catch, CPUE and movement from fish caught in New Zealand. Information from the commercial fishery is limited as all marlin must be released. Recreational catch of marlin has been well recorded by sport fishing clubs since the 1920’s and CPUE data has been collected since 1975. Movement data from striped marlin with conventional and satellite tags is described. These data are available.
We used Observer data to assess the species composition of the New Zealand tuna longline fisheries, and to estimate CPUE and the number of fish caught by observed vessels during 2010–11 to 2014−15 fishing years. Data were summarised by fishing fleet and area. Reported catches were presented. Discard practices and life status were summarised for the main non-target species. The size distribution, and sex and maturity composition of blue, porbeagle, and mako sharks and Ray’s bream were determined.
updated 6 July 2018
keywords: contamination charts, single posters
Effective April 2015, this is a printer-friendly summary of recreational fishing rules for the Challenger area.
- Food Safety in Pregnancy [PDF, 1786 KB]
- Food safety for seafood gatherers [PDF, 654 KB]
- Food safety for hunters [PDF, 1142 KB]
- Food Safety in the Home [PDF, 1715 KB]
- Food safety tips for event organisers [PDF, 527 KB]
- Food Safety practices in preparing and cooking a hāngi: He whakatairanga i ngā ahuatanga mahi mō te tunu hāngi [PDF, 1721 KB]
Pregnant women have lower levels of immunity than usual and may be more at risk of getting diseases carried by food. This quick pullout guide to food safety provides advice and guidance on what pregnant women can do to avoid dangerous food bugs.
The primary industries are changing. To meet the challenges and opportunities of today – and tomorrow – we will need to attract people from diverse backgrounds, who bring different capabilities to the sector.
Recently, MPI took a closer look at how the primary industries workforce is changing in terms of numbers, qualifications and diversity. MPI also looked at new entrants to the industry, who are they, where they came from, and how long they stayed in the industry. In this fact sheet we share some of the key findings from this analysis.
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