Scientists from NIWA have developed the first fisheries assessment for Antarctic toothfish, and the first for any exploratory Antarctic fishery. The 2005–06 quota for the Ross Sea Antarctic toothfish fishery, which opened on 1 December, has taken account of this new assessment.
Forty years ago anglers in New Zealand were actively encouraged to ‘kill eels on sight’. Although the attitude towards eels has changed significantly since then, it has not stopped our native longfinned eel stocks declining, mirroring the global downward trend in freshwater eel recruitment.
A new programme underway at NIWA is researching the potential for byproducts and bycatch from the fishing industry, which are currently discarded or used for low-value products such as fishmeal, to be used in the production of skin-care products.
A technique that collects chemical ‘fingerprints’ from the ear bones of fish to help scientists identify which estuaries they originated from could have important implications for the management of New Zealand’s local fisheries, said an article in the latest issue of Fisheries & Aquaculture Update, published by NIWA’s National Centre for Fisheries and Aquaculture.
During the first week of March NIWA will be conducting experimental work to assess survivorship amongst snapper tagged with its newly developed electronic tag. Snapper will be caught using commercial trawl and long-line vessels from waters close to Kawau Island. The snapper will then be tagged, placed into a large sea cage and monitored for two weeks.
An agreement in principle has been reached for the sale of the Glenariffe Salmon Hatchery currently owned by NIWA, to Rakaia Salmon Limited. The new company wishes to raise salmon for the market by using the hatchery raceways. Initial concerns by environmental groups over potential capture of young salmon for the farm from the Rakaia River will not be an issue.