Story: Open ocean All images & media From page 1 – Plankton: the key to ocean life Neocalanus tonsus Basking shark Neocalanus tonsus life cycle From page 2 – Larger plankton in the food chain Open ocean food chain Jellyfish life cycle A salp chain Buller’s albatross chick From page 3 – Fish larvae and the ocean environment Hoki catch Hoki fisheries and spawning grounds Hoki larvae and their food Seasonal changes in ocean temperature, south-eastern New Zealand Rising temperatures in the Tasman Sea, 1992–2004