
A study completed by the Department of Conservation shows that seals in Tasman Bay around the Tonga Island Marine Reserve eat primarily anchovy, pilchard, jack mackerel and squid. The study analysed seal faeces and 15 regurgitations collected in winter and spring of 2007 and was carried out by the National Institute of Water and Atmospheric Research (NIWA). Blue moki and especially blue cod have increased in abundance and size since Tonga Island Marine Reserve was established in 1993, DOC says. Studying faeces, however, doesn’t indicate the amounts of fish that are eaten by seals.
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Protecting Māori fisheries assets for future generations