Wednesday, January 24, 2007

ALLAH- The Creator, The sustainer

Surely it is Allah who is the giver of all sustenance,
the Lord of Power, the Invincible. Qur’an (51:58)

In the sunlit, upper surface waters, life is most abundant. Here, microscopic phytoplankton and other plants photosynthesize like mad, forming the base of a complex food. But Sunlight cannot penetrate below a depth of about 660 feet; around the start of what's known as the bathyal zone (it ends where the water temperature drops to 4 degrees Celsius -- at about 6600 feet). Some fish and crustaceans at these depths are blind; other animals -- as many as half of the creatures in the deep oceans -- have become bioluminescent, producing their own light in specialized organs called photophores.

Without sunlight, there is no photosynthesis, and without phytoplankton to kick start the food web, animal life is sparse. Because of the scarcity of food in the deep sea, many fish have evolved bizarre adaptations to help them get what they can. Some fish -- gulpers and swallowers, for example -- have huge mouths or enormous guts, so they can gobble up as much food as they can when it is available; other fish, like anglerfish, have modified part of their dorsal fin to take the shape of a dangling lure, to entice potential prey.

Many deep sea fish are bioluminescent, with extremely large eyes adapted to the dark, and they can have long feelers to help them locate prey or attract mates in the pitch dark of the deep ocean. The deep sea angler fish in particular has a long fishing-rod-like adaptation protruding from its face, on the end of which is a bioluminescent piece of skin that wriggles like a worm to lure its prey. The lifecycle of deep sea fish can be either permanently deeply submerged or they are sometimes born in shallower water and sink on becoming adults.
Below the bathyal zone, and extending to depths of about 20,000 feet -- where the region of the still-mysterious ocean trenches begins -- is the abyssal zone. The abyssal is the world's largest environment, comprising some 115 million square miles, or 60 percent of the surface of the Earth. Pressures here range from 200 to 600 atmospheres; the waters are cold, dark, and -- far removed from surface storms and currents – serenely.In those calm waters, animals often have delicately-structured, unstreamlined bodies. (In part, this occurs because the water is deficient in calcium, which is necessary for spines and other appendages. It also lacks sunlight-produced vitamin D, which is crucial for proper bone growth. This may explain why deep-sea fishes have such grotesque forms.)
Some bottom-dwelling crustaceans have long, spiny legs to prop themselves above, and probe into, the soft ooze; other benthic animals are attached to the substrate with long stalks that carry their bodies up above the bottom water, which is often depleted in oxygen.
Really ALLAH's artistry in creature help many creatures to sustain in any climate condition. Thus ALLAH is the sustainer of all creatures.


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