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Life under the Ice Floes: The Shiretoko Peninsula in Hokkaido: UNESCO Culture Sector
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Life under the ice flows, the Shiritoko Peninsula in Hokkaido.
00:00:00
In Hokkaido, the sea of Okhotsk starts freezing from the north and ice flows drift into Shiritoko.
00:00:07
The Shiritoko Peninsula juts into the sea and collects drifting sea ice brought in by sea currents and the north wind.
00:00:14
How could sea water freeze?
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The water here is diluted by the fresh water from the Amura River in Russia.
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The Amura is the largest river in northeast Eurasia.
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The river basin stretches across a large forested area.
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The river water is rich in nutrients from the forest.
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In the spring, the sea ice, known as the cradle of life, starts melting.
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Once it does that, the nutrients inside disperse into the sea, then small shrimp-like missids feed on them and greatly increase in number.
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Missids are a popular food for fish.
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But the water temperature is still low.
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Wolffish are still inactive.
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Fringed bennies look sleepy.
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As the water temperature rises, the fight for existence begins.
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A crab is trying to eat a baby giant Pacific octopus.
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This octopus could grow up to three meters in length.
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Every winter, shoals of walleye pollock stay under the ice.
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Ataka mackerel look for plankton 300 meters below the surface.
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When the ice melts, smooth lumpsuckers rise up from the depths to spawn in the nutrient-rich shallows.
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It is the male fishes' role to hatch the eggs.
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They have to keep sending fresh sea water to their eggs and cannot eat anything for a month during the procedure.
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A squid from the Gonitidae family.
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They also come up from deep sea in the spring.
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Large ones can measure a meter in length.
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Between their tentacles is what looks like lace.
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It is where they store their eggs.
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The baby squid hatch while their parents swim around.
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There is a cycle of life and death.
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The ice flows are the key source of rich sea life around Shiritoko.
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- Idioma/s:
- Niveles educativos:
- ▼ Mostrar / ocultar niveles
- Nivel Intermedio
- Autor/es:
- NHK World Heritage 100 Series - UNESCO
- Subido por:
- EducaMadrid
- Licencia:
- Reconocimiento - No comercial - Sin obra derivada
- Visualizaciones:
- 247
- Fecha:
- 1 de junio de 2007 - 10:52
- Visibilidad:
- Público
- Enlace Relacionado:
- UNESCO
- Duración:
- 02′ 45″
- Relación de aspecto:
- 4:3 Hasta 2009 fue el estándar utilizado en la televisión PAL; muchas pantallas de ordenador y televisores usan este estándar, erróneamente llamado cuadrado, cuando en la realidad es rectangular o wide.
- Resolución:
- 480x360 píxeles
- Tamaño:
- 16.48 MBytes