Fisheries

The Otolith is the earbone of the fish and like the rings on a tree it can tell us about the story of the fish's life.

After 40 years of work, retired NIWA fisheries scientist Larry Paul has just published a 793-page bibliography of references to New Zealand marine fishes. Everything known and ichthyological that appears in our waters is referenced in the voluminous tome.

Developing innovative, non-invasive alternatives for surveying scallops and harvesting.

Some of the first research into how microplastics are affecting New Zealand fish species has revealed that microplastic fragments can find their way through the gut lining and into muscle tissue.

Researchers are working their way through a wealth of new Antarctic marine data after RV Tangaroa successfully completed its five week scientific voyage to the Ross Sea.

A lack of information about New Zealand oceanic shark populations is making it difficult to assess how well they are doing, says a NIWA researcher.

NIWA’s flagship research vessel Tangaroa leaves soon on a six-week voyage to Antarctica, making it one of the few full scientific expeditions to the continent since the global outbreak of COVID-19.

A NIWA researcher has found the first evidence that female deep sea sharks store sperm as a strategy to preserve the species and possibly avoid aggressive mating encounters.

Hoki is New Zealand's largest finfish fishery. Their eggs reveal a few secrets that surprise scientists.

Marine ecology technician Mark Fenwick takes us onboard a fishing vessel for a day of catch sampling.

This month-long fisheries trawl survey on the RV Tangaroa, aims to estimate the relative abundance of hoki, hake, ling and other middle depth fish species in the Southland and subantarctic areas.

A global survey involving 123 scientists from 58 nations raises concerns about the global status of reef sharks.