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… other countries of the Pacific. Post-war exploration of the oceans provided a new view of the earth: the ocean floor is not as old as the continents. It lies on much … plates, moving independently but driven by convection currents deep within the earth. Understanding the New …
Type: Story Page
Part of story: Geological exploration
… are more exposed than the eastern and northern coasts. Currents Warm, salty, sub-tropical currents bathe the north … capital city, their nests are sometimes found under houses. Ocean deep The deep waters beyond the continental shelf are … . These are underwater deserts. But even in the deep oceans there are oases, areas of higher land known as …
Type: Story Page
Part of story: Natural environment
… the millions of free-floating organisms living in the ocean and other aquatic ecosystems. Many kinds of organisms … some spend their entire life drifting in the upper ocean, others are members of the plankton community for a … and wastes pass. These photosynthetic organisms live in the ocean, with some species common in fresh waters. About 620 …
Type: Story Page
Part of story: Plankton
… water from the planet’s ice caps poured back into the oceans and their level rose. Sea level reached a maximum … eroded from the land has been carried by rivers to the ocean. Waves and currents have distributed this sediment along the coast. …
Type: Story Page
Part of story: Geology – overview
… influence where and how many animals live on the sea floor. Ocean depth and animal distribution There is usually a … They are also areas of high productivity and have strong currents sweeping through them. These factors are probably …
Type: Story Page
Part of story: Sea floor
… throughout the atmosphere. Their limited coverage over oceans is compensated for by satellite-borne instruments, … southern hemisphere, where there are large areas of open ocean. These satellites make tens of thousands of …
Type: Story Page
Part of story: Weather forecasting
… River’s 12-km course southwards before reaching the ocean, and that of the Hope Fault in the alignment of the … Te Hau) is an old bay that has become cut off from the ocean due to uplift (found along the whole Kaikōura coast). …
Type: Story Page
Part of story: Marlborough region
… from 250 to 650 kilograms. They live in all the temperate oceans of the world. Pod size can be from 2 to 60 or more. … have been identified: pelagic (living mainly in the open ocean) and coastal. Elsewhere, the coastal dolphin is … move to the warmer outer reaches of the fiords and the open ocean, and do not produce their offspring until mid-summer. …
Type: Story Page
Part of story: Dolphins
… in tropical and subtropical coastal waters and the open ocean, and some venture into New Zealand waters on their … seen from the coast swimming slowly near the surface of the ocean. Basking sharks open their mouths wide to catch … world in temperate and sub-polar seas, excluding the Indian Ocean. Although considered a coastal species, they have been …
Type: Story Page
Part of story: Sharks and rays
… known to breed on the Crozet Islands in the south Indian Ocean. Dipping numbers In the past, albatrosses were hunted … New Zealand islands, as well as all around the southern ocean. Grey-headed albatrosses About 11,800 pairs of … they breed on other islands all around the Southern Ocean. Buller’s albatrosses Buller’s albatrosses or …
Type: Story Page
Part of story: Albatrosses
… and organic compounds) tend to sink to the dark sea floor, oceans are much less productive than the ecosystems on land. … created where nutrients are stirred towards the surface by currents, convergences, wind, abrupt changes in depth, or … and are restricted to feeding in the top few metres of the ocean. Albatrosses, the most adept of the seabirds at …
Type: Story Page
Part of story: Seabirds – overview
… emerging renewable technologies such as harnessing the ocean’s waves and currents are expected to become more economic. Ocean waves are produced by wind. The powerful ocean swells …
Type: Story Page
Part of story: Wind and solar power
… flow is likely to be south-west, originating over the cold ocean near Antarctica. As this cold air moves over the … or gale force. Low-pressure centres Lows form when the air currents in the middle and upper atmosphere of a trough … There are several reasons for this: There is a warm ocean current running down the coast, which feeds heat and …
Type: Story Page
Part of story: Weather
… other areas far from land are scoured by powerful bottom currents, which sweep the ocean floor. These conditions provide a range of … cobalt, form on the exposed slopes of seamounts – elevated oceanic plateaus and ridges at depths of 1,000–3,000 metres. …
Type: Story Page
Part of story: Marine minerals
… magnetic field is thought to be due to circulating electric currents in the iron-rich liquid outer core, some 3,000 … in 2002 the magnetic north pole was in the Canadian Arctic Ocean, 950 kilometres south of the geographic north pole. … magnetic storm. Intense magnetic storms produce circulating currents in electricity supply. Several major power …
Type: Story Page
Part of story: Magnetic field
… makes a one- to two-year journey out into the South Pacific Ocean, where it floats about feeding and undergoing numerous … this form, the larva spends an extended period floating in ocean currents that carry it far from shore. The final phyllosoma …
Type: Story Page
Part of story: Crabs, rock lobsters and other crustaceans
… essentially unbroken, around the margins of the Pacific Ocean – the so-called Pacific Ring of Fire. This immense … formed above the subduction zone by melting of the oceanic Australian Plate. Close to New Zealand, the Australian Plate changes from oceanic to continental crust and the Kermadec Ridge merges …
Type: Story Page
Part of story: Volcanoes
… arrive on northern beaches, swept down from the Pacific on ocean currents. Octopus and squid bodies All species of octopus … of their skin to perfectly match the surrounding seabed. Ocean-dwelling squid and a few octopus species have …
Type: Story Page
Part of story: Octopus and squid
… main island, and also on the Forty Fours (Motuhara) in the ocean to the east. It also forms the basement to the younger … continued under water. Sedimentary rocks also formed on the ocean floor. Less than four million years ago tectonic … the Chatham Islands are invigorated as subtropical ocean currents meet and mix with colder, less saline, water from …
Type: Story Page
Part of story: Chatham Islands
… estuaries and coastal shores to the deepest depths of the ocean floor. The characteristic spiral shell ranges from the … of bubbles that keeps them afloat as they drift with the currents, and feed on jellyfish and Portuguese man-of–war …
Type: Story Page
Part of story: Shellfish