-
Acoustic and radio telemetry
Radio and acoustic tracking of fish (or any animal) allows the movement and activity of animals to be recorded over the life of the transmitter (battery size dependent). -
Summer Series 4: Life in the (ex) stream - exploring New Zealand's fabulous freshwater fauna
News article15 January 2013Our freshwater fauna are wonderfully diverse and, according to NIWA Freshwater Ecologist Dr Richard Storey, there's nothing among them that we need to be afraid of. -
LakeSPI method summary
A summary of the LakeSPI method. -
Reporting guidelines
LakeSPI delivers information that is directly applicable to lake-ecosystem conservation and management. -
Uses of LakeSPI
LakeSPI can be used in many ways depending on what the interests or management needs are for a lake. -
How LakeSPI works
LakeSPI (Lake Submerged Plant Indicators) is based on the principle that New Zealand lakes can be characterised by the composition of native and invasive plants growing in them, and the depths to which these plants grow. -
Staying ahead of water weed invasions
Research ProjectAquatic systems are under threat due to the introduction of invasive exotic species such as water weeds. Modelling work by NIWA has provided new information on which water bodies may be at greatest risk. -
Formal identification keys
Formal identification keys are the scientifically accepted way to identify species. These will allow the identification of species which are unclear when using quick guides. -
An Overview of New Zealand's Freshwater Fish Fauna
Compared to other countries, New Zealand has a sparse freshwater fish fauna of just over fifty species. But it is unique and comprises at least thirty-five native species of which thirty-one are found only in New Zealand.
