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Salinity vs. depth profiles are different in different parts of the ocean, so there is really no one correct answer to this question.

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14y ago
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13y ago

It is because that salt is rarer than the water & below because of the green plants & fishes.

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10y ago

It is saltier at the bottom of the ocean because saltier water is more dense and sinks to the ocean floor.

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Q: Why is salinity higher in the top layer of the oceans?
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Related questions

Which layer of the ocean has higher salinity?

The top most layer has more salinity. But ignoring thermo-haline currents.


Where is the densest water in all the oceans formed?

the most dense part of the water is in the pacific ocean. it is located near the middle of the ocean. go 50 miles past the middle and you there. Make sure you go north though. It's an ocean trench. HOPE THIS HELPS>>>>>EVEN THOUGH IS'T WRONG...


The oceans crust is composed of what?

The oceanic crust composed of sima, mafic rocks and basalt. This is the top layer of the lithosphere which is found in the ocean floor.


Why would there generally be a higher salinity near the north and the south poles near the glaciers?

Because of the solidification of the water under low temperatures. The water is "turned" into ice, leaving the salt behind. So the salt is left in the water, with the freshwater turned into ice floating on top. If the glaciers melt, the salinity will decline, because this new freshwater will dilute the salty waters.


In sedimentation what order does the layers goes?

In sedimentation the thickest layer goes to the bottom,and the thinner they are the higher to the top it is layered.


Does water with higher salinity sink below water with lower salinity?

The higher the saline content in water the heavier the water. This causes it to sink towards the bottom and water with lower levels will rise to the top. It will remain so unless stirred vigoriouly and often. Many animals live, and thrive in this setting, such as salt marshes, springs, also some ponds and lakes.


How does salinity affect the density of the ocean water?

Dissolving salts in water increases the density slightly. Ocean waters have an average density about 2.5% greater than fresh water. The Dead Sea has a much higher density, somewhere roughly near 20% greater than fresh water due to its 30% salinity level.


Why is it harmful to waste the top layer of soil?

The top layer of soil is the most fertile layer. It is the best for growing crops.


What runs on the top of the troposphere?

That would be the 2nd layer, the stratosphere layer with the ozone at top.


What is the average density of seawater?

The density of surface seawater ranges from about 1.020 to 1.029 g·cm-3, depending on the temperature and salinityThe average density of seawater at the surface of the ocean is 1.025 g/ml; seawater is denser than freshwater (which reaches a maximum density of 1.000 g/ml at a temperature of 4°C) because of the added mass of the salts.


What is they layer of tissue underneath epidermis and hypodermis?

The skin layers from top to bottom are the epidermis (top layer), dermis (middle layer), and hypodermis (bottom layer).


Why does the bottom layer of the rainforest receive less sunlight than the top layer?

Because the leaves and branches of the top layer block sunlight from reaching the bottom layer.