Atmospheric analysis

Tangata whenua in the North and Chatham Islands may customarily fish under Regulation 27A, Fisheries (Amateur Fishing) Regulations 1986 in areas that are not yet covered by the Fisheries (Kaimoana Customary Fishing) Regulations 1998.

From about the 1840s, willows (Salix spp.) were introduced to New Zealand by early settlers.

This is a special series of stories put out to the media in the 2011/2012 summer.

A project funded by West Coast Regional Council has increased our knowledge of the role of phosphorus in determining water quality in Lake Brunner.

It is thought freshwater eels were originally marine fish which adapted to live most of their lives in fresh water, and that the present distribution of the 18 species of freshwater eel is largely a result of continental drift.

The main aim of the surveys is to estimate the abundance of hoki and other commercially important species (such as hake and ling), but during the 20 consecutive surveys NIWA scientists have also been able to study other aspects of deepwater biodiversity on the Chatham Rise, including fish distribution, abundance, and ecology.

Showcasing tuna research and restoration initiatives being undertaken around New Zealand.

Finding and collating information that already may exist for the lake, river or stream you are interested in, choosing the right sampling methods, and making sure that the data you work hard to collect is stored safely are all important things to consider in your monitoring programme.

There are a range of different sampling methods which can be used, including electric fishing, fyke nets, Gee-Minnow traps, scoop nets, whitebait nets and observation.

Site selection and timing are important factors to consider when designing a representative sampling strategy .