Tides have such an effect that they can even change living
conditions in some regions of the Earth. People, who resume their lives
after the withdrawal of tides, arrange their entire lives according to
tides. By the Will of Allah, oceans rise up to a certain level. This way,
they never become a threat for local people.
Think of a water molecule in the ocean. This molecule is under the influence
of the force of gravity. However, the Moon also exerts a weaker gravitational
pull on this molecule. The distance between the Moon and the Earth and
the Moonâ€™s small mass are the principal causes of this weaker pull
of the Moon. This force of gravity of the Moon is not only influential
on this water molecule, but also on all objects on the Earth. Yet, because
all objects are not fluid like liquids, there exists no apparent changes.
Every region of the Earth does not respond to this rise and fall of oceans
at the same rate. That is because the Moonâ€™s force of gravity changes
from place to place; the distance between the Moon and the various points
of the Earth is not the same. As a result of this effective force on oceans,
the water rises towards a certain direction. As the Moonâ€™s position
in relation to the Earth and the Sun changes, this force diminishes and
tidal regions occur where water withdraws.
The Sunâ€™s gravitational pull also brings about a rise in the oceans.
However, this force affects the Earth by a rate of 1/3.
Because the Moon is nearer to the Earth than the Sun, despite the Sunâ€™s
big mass, the Moonâ€™s gravitational pull is two and a half times
stronger than the Sun.
No doubt, a tide is only one of the systems in the universe that our
All-Mighty Allah has created with flawless miracles. The sensitive balance
in the tide is not limited to these. As the gravity of the Moon causes
oceans to rise, with a second force, oceans are also pulled in the opposite
direction of the Moon that is towards the Earth. While all of these occur
, Earth continues to rotate around itselfs, so there are two tides happen
everyday. The times of tides vary in each region as the position of the
Sun, the Moon and the Earth changes. For instance in Northern California,
tides come in twice a day, while in the Mexican Gulf, it happens only
once, in the form of just one rise and fall.
LIFE STORIES FROM TIDAL REGIONS
97% of the water that covers more than 70% of the Earth is oceans. According
to data provided by the World Resources Institution (WRI), 40% of the
worldâ€™s population lives on the coasts surrounding this water and
from time to time, these people experience tsunamis, storms, or tides
that come into existence with the rise and fall of water.
Especially at regions where natural events such as tides happen, with
respect to the position of the Moon, local people take many precautions
and develop various forms of living in order to survive.
- In tidal regions, sometimes highways are built upon places where water
recedes. However, when water comes back, these highways turn into areas
where local people fish and very interesting scenes occur. This activity,
which is called street fishing, is a way through which the All-Mighty
Allah offers food from the sea, one of His blessings, to people. In the
Qurâ€™an, our Lord states that He is the One Who bestows His blessings
in the sea:
“It is He Who made the sea subservient to you so that you can eat
fresh flesh from it and bring out from it ornaments to wear. And you see
the ships cleaving through it so that you can seek His bounty, and so
that hopefully you will show thanks.” (Qurâ€™an, 16: 71)
The rapid movement of water also causes extraordinary situations such
as falls that flow horizontally.
Flawless Design Well-Matched with Circumstances
Most of the fish living in tidal regions have a structure resistant
to shallow and running water. While water recedes, they need to hide in
small holes so that they are not drifted with the water. They can accomplish
this by their thin structure and height smaller than 20 cm.
Fins of fish in tidal regions have the design most suitable for their
living conditions. By the fins on their chests, they can hold onto rocks.
Their skin, on the other hand, is created to resist the constant currents.
Some of them have very few scales, whereas some have none. Instead, various
fish secrete a mucus-like fluid that minimizes friction likely to happen
Aside from these flawless traits, fish living in tidal regions have an
amazing ability of camouflage. Some species constantly change color where
as some others, wherever they may be, can instantly gain the color and
patterns matching the environment.
Another miracle of design in the bodies of fish living in tidal regions
is the mechanism highly resistant to water loss. Thanks to this mechanism,
even if they lose 60% of their body water, they can survive. The thick
skin they have and the mucus they secrete, are the components of this
mechanism slowing down the water loss.
The Miraculous Respiration in Air With Gills …
For fish living in tidal regions, one of the most important problems
is the need for oxygen. Outside of water, gills do not function. But,
their short and thick gill fibers can take the oxygen they need directly
from the air by the blood vessels concentrating around their mouth and
their skin. For this reason, fish that remain in ponds can surface and
thus meet their urgent oxygen needs.
Another miraculous trait of tidal fish is their ability to find their
nest under every condition. Generally, most fish species choose a certain
place and live there. However, if they leave this place for one reason
or another, they can also turn back. Older fish have more of this talent.
Research has shown that fish kept in the laboratory for as long as 6 months
could find their nests back when they were left at sea.
No doubt, living beings having body designs matching the conditions in
tidal regions are only one of the evidences indicating that the All-Mighty
Allah created them. The All-Knowing Allah reveals the evidence of His
unique creation in every corner of the universe. Our Lord states in the
Qurâ€™an as follows:
“The Originator of the heavens and Earth. When He decides on something,
He just says to it, ‘Be!â€™ and it is.” (Qurâ€™an,
What if the water recedes?
The answer to this question no doubt affects the lives of fish living
in tidal regions. The design of fish living in tidal regions is perfectly
adapted to the conditions in these areas. These extraordinary designs
are only one of the obvious evidences of the fact that the All-Mighty
Allah, Who created all the heavens and the Earth, creates them in this
Tidal regions where ocean water covers twice a day and then recedes offer
very harsh conditions to the fish to survive. When water recedes, fish
that survive under rocks, in puddles, and muddy areas, are generally well
camouflaged by their colors matching with the ground. Besides, with the
receding of water, they often become utterly unnoticeable, for they hide
under rocks or in-between plants. Until recently, these fish were thought
to be drifted to these regions with waves. However, recent research has
revealed that they were created with designs appropriate to these tidal
In Australiaâ€™s Carumba region, water rises up to 4.78 m. In Broadsound
town, on the other hand, this rise reaches up to 8 m. However these figures
are rather insignificant next to Australiaâ€™s highest figures, for
in Derby, water rises up to an average of 11-12 m.