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Phytoplankton Off Coast of Iran

27.8N 51.6E

January 31st, 2012 Category: Phytoplankton

Iran - January 19th, 2012

A green phytoplankton bloom can be seen in the Persian Gulf near sediments trailing off the coast of Iran. Although the amount of phytoplankton – tiny marine plants – in the top layers of the oceans has declined markedly over the last century, there are phytoplankton increases in coastal zones where fertiliser run-off from agricultural land is increasing nutrient supplies.

Scientists say the decline in the oceans appears to be linked to rising water temperatures. The decline – about 1% per year – could be ecologically significant as plankton sit at the base of marine food chains.
The decline is seen in most parts of the world, one marked exception being the Indian Ocean.

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