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Friday 30 March 2012

Ada Air Laut Merah di Sabah


Tengok warna merah tu cukup menggerunkan. Apa yang pasti elakkan makan seafood.

4 comments:

  1. errrrr mcm mana leh jadi mcm tu yer?

    ReplyDelete
  2. Red tide is a common name for a phenomenon also known as an algal bloom (large concentrations of aquatic microorganisms), an event in which estuarine, marine, or fresh water algae accumulate rapidly in the water column and results in discoloration of the surface water. It is usually found in coastal areas.

    These algae, known as phytoplankton, are single-celled protists, plant-like organisms that can form dense, visible patches near the water's surface. Certain species of phytoplankton, dinoflagellates, contain photosynthetic pigments that vary in color from green to brown to red.

    When the algae are present in high concentrations, the water appears to be discolored or murky, varying in color from purple to almost pink, normally being red or green. Not all algal blooms are dense enough to cause water discoloration, and not all discolored waters associated with algal blooms are red. Additionally, red tides are not typically associated with tidal movement of water, hence the preference among scientists to use the term algal bloom.

    Some red tides are associated with the production of natural toxins, depletion of dissolved oxygen or other harmful effects, and are generally described as harmful algal blooms. The most conspicuous effects of these kind of red tides are the associated wildlife mortalities of marine and coastal species of fish, birds, marine mammals, and other organisms. In the case of Florida red tides, these mortalities are caused by exposure to a potent neurotoxin called brevetoxin which is produced naturally by the marine algae Karenia brevis.

    sumber http://en.wikipedia.org/wiki/Red_tide

    ReplyDelete
  3. Nak copy yer..Rosniena ni orang Sabah eh?

    ReplyDelete
  4. sila2..saya orang Johor..hehe

    ReplyDelete

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