Blue planet. Episode 4, Frozen seas /

Life on the edge of a frozen sea is tough. Pack-ice at both poles is constantly on the move, and in winter it freezes solid. Only in spring, does life begin again. Witness the plankton bloom and how this feeds vast hordes of migrating fish, birds, whales, seals and polar bears. Walruses also rake th...

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Bibliographic Details
Other Authors:	Attenborough, David, 1926- (Narrator)
Format:	Video
Language:	English
Language Notes:	In English with English subtitles.
Published:	London : BBC Worldwide, 2001.
Series:	Academic Video Online
Subjects:	Oceanography. Marine biology. Marine ecology. Marine biodiversity. Ocean. Arctic Ocean. Antarctic Ocean. Océanographie. Biologie marine. Biodiversité marine. Mer. Arctique, Océan. Austral, Océan. Science television programs. Nature television programs. Internet videos. Documentary television programs. Documentaires télévisés. Émissions télévisées sur la nature. Émissions scientifiques télévisées. Vidéos sur Internet.
Online Access:	Connect to this streaming video (Alexander Street Press)

Description
Summary:	Life on the edge of a frozen sea is tough. Pack-ice at both poles is constantly on the move, and in winter it freezes solid. Only in spring, does life begin again. Witness the plankton bloom and how this feeds vast hordes of migrating fish, birds, whales, seals and polar bears. Walruses also rake the seabed for clams during this time. But it is a brief respite, for the ice soon returns.
Item Description:	Title from resource description page (viewed May 18, 2018).
Physical Description:	1 online resource (1 video file (49 min.)) : sound, color
Playing Time:	00:48:44
Production Credits:	Producer, Alastair Fothergill.