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What are whitebait?
Whitebait are the juveniles of five species of galaxiidae, a family of fish confined to the Southern Hemisphere. -
Guidelines for sampling freshwater fisheries
We have prepared a breakdown of the different guidelines that are available for sampling freshwater fisheries. The overview provides links to key documents that explain what should be considered when designing fish monitoring studies and how to implement the various sampling techniques. -
Scholarships
Scholarships available to both Masters and undergraduate students in the fields of fisheries science and marine biology. -
Trawl fisheries bycatch
Accurate reporting on the amount of fish and invertebrates that are caught and discarded by New Zealand’s commercial fishing industry is vital to effective management of these fisheries. -
Biological limitations
Identifying biological factors that may be limiting fish numbers requires sampling to ensure that key invertebrate prey species are not scarce and that pest fish, especially predators, are not abundant. -
Estimated bycatch
View data that show reported target catch and estimated bycatch. -
Tuna - freshwater eels in New Zealand
Tuna is a generic Māori word for freshwater eels. The word will be used interchangeably in this resource. -
New Zealand's Marine Realm
News article06 June 2017NIWA has transformed 1.5 million square kilometres of data into the most accurate and detailed map yet of the land underneath the sea around New Zealand. -
Tuna - age and methods of ageing
Currently, the most reliable method to estimate the age of tuna is by examination of their otoliths or "ear bones" -
Population modelling software
Casal2 is an advanced software package developed by NIWA for modelling the population dynamics of marine species. -
Rig shark
Research ProjectRig shark is an important inshore commercial fish species in New Zealand, and we need to understand more about their habitats, movements, nursery grounds and vulnerability to human impacts to ensure they are managed sustainably and their productivity is enhanced. -
Questions and answers about oyster disease Bonamia ostreae
Media release06 June 2017NIWA is today issuing some scientific information on the parasite Bonamia ostreae, recently discovered in Big Glory Bay, Stewart Island, and the risk it poses to the Bluff oyster fishery.
