Antarctic trawl nets deep data

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Source: NIWA – National Institute of Water and Atmospheric Research – Press Release/Statement:

Headline: Video: Antarctic trawl nets deep data

NIWA scientists aboard RV Tangaroa have been trawling the central Ross Sea calculating the abundance of the prey species.

The trawl through the Antarctic waters at about 72 degrees south, concentrates on the area where about 3000 tonnes of toothfish are harvested each year. The catch revealed rattails, icefish, glacial squid, and silverfish and a number of unusual fish and inverterbrates.

While the scientists are less interested in the toothfish than in the health and abundance of the fish they feed on, they did catch a healthy specimen during the trawl. The fish was measured, tagged and released according to CAMLAR protocols.

Tangaroa is four weeks into a six-week research voyage investigating the foodwebs that support the oceans top predators – humpback whales, blue whales and toothfish.

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Selwyn Manning, BCS (Hons.) MCS (Hons.) is an investigative political journalist with 23 years media experience. He specializes in reportage and analysis of socioeconomics, politics, foreign affairs, and security/intelligence issues. Selwyn has extensive experience as a commentator and has provided live political analysis to a wide range of television and radio organizations broadcasting in New Zealand, Australia and globally including the BBC (Five Live, London) and BBC (World Service). He is currently a correspondent to Australia's FiveAA radio, and is a regular live-on-air panelist on Radio New Zealand's The Panel with broadcaster Jim Mora.

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