Salinity and Ocean waters.

[dpr112yme]

Although the salinity within a contained amount of water may not change too much with different temperatures, the salinity content may change in a larger water mass. The salinity of the Ocean's higher temperature zones may decrease as heat increases as the salt is dispersed into other regions of the Ocean. As the water temperature increases, the amount of material in the waters can become more diffused than if they were in colder waters. And as the minerals start to break apart from one another, they will travel into other areas of the Ocean where there is less salinity. If the Ocean is suffering from heat rises, the zones where the temperature of the water is rising will lose its' salinity and density which would make the life within those places have to look for other places more like the original.

 

[Dekster]

If you are commenting on the dead zones, it is more an oxygen saturation issue than a salinity issue.

 

[Crick]

Although the salinity within a contained amount of water may not change too much with different temperatures, the salinity content may change in a larger water mass. The salinity of the Ocean's higher temperature zones may decrease as heat increases as the salt is dispersed into other regions of the Ocean. As the water temperature increases, the amount of material in the waters can become more diffused than if they were in colder waters. And as the minerals start to break apart from one another, they will travel into other areas of the Ocean where there is less salinity. If the Ocean is suffering from heat rises, the zones where the temperature of the water is rising will lose its' salinity and density which would make the life within those places have to look for other places more like the original.

I'm sorry to say but that is complete nonsense. Heat does not force salt to move to other regions. There are no "minerals" in sea water. There are lots of various ionic solutes, but nothing that will "break apart" and then "travel into other areas of the Ocean". Increasing water temperature does not cause a loss of salinity. Salinity is generally expressed as mass per mass (grams per kilogram) and thus is not affected by changes in density. If something WERE to significantly alter the salinity in a region, it would have a detrimental effect on the local biota.

 

[dpr112yme]

Although the salinity within a contained amount of water may not change too much with different temperatures, the salinity content may change in a larger water mass. The salinity of the Ocean's higher temperature zones may decrease as heat increases as the salt is dispersed into other regions of the Ocean. As the water temperature increases, the amount of material in the waters can become more diffused than if they were in colder waters. And as the minerals start to break apart from one another, they will travel into other areas of the Ocean where there is less salinity. If the Ocean is suffering from heat rises, the zones where the temperature of the water is rising will lose its' salinity and density which would make the life within those places have to look for other places more like the original.

I'm sorry to say but that is complete nonsense. Heat does not force salt to move to other regions. There are no "minerals" in sea water. There are lots of various ionic solutes, but nothing that will "break apart" and then "travel into other areas of the Ocean". Increasing water temperature does not cause a loss of salinity. Salinity is generally expressed as mass per mass (grams per kilogram) and thus is not affected by changes in density. If something WERE to significantly alter the salinity in a region, it would have a detrimental effect on the local biota.

And if there was a negative effect, would that mean more death in that place and less liveable things?

 

[Unkotare]

Perhaps more interesting is the research currently being done to develop plants - including food crops - that can thrive with water of higher salinity levels. Now THAT could be a game changer.

 

[dpr112yme]

The reason why I brought this up is because the oceans are going through a climate increase.. temperature increase. If the ocean temperature of the waters are going up, then i guess the salinity would remain the same as well as the density, which would mean that nothing is changing.

 

[Crick]

What is changing is that the ocean's temperature is going up and it's pH is going down (becoming more acidic).

 

[dpr112yme]

What is changing is that the ocean's temperature is going up and it's pH is going down (becoming more acidic).

even that is bad for ocean life.

 

[Crick]

Of course. The absolute temperature change is small and the pH change seems small to folks with no chemistry experience. The latter will have the greatest effect. The problem there is that the pH is changing so quickly compared to past variations. There have been occasions in the Earth's past where the Earth's atmosphere has had enormous levels of CO2 but yet the ocean's pH remained relativelyy stable. In those cases, the changes took place over hundreds of thousands or millions of years. That allowed time for the erosion of limestone around the planet to buffer the change and pH never took the sort of swing it's taking now. Well, not never. In the Permian-Triassic extinction event, pH changed rapidly, likely due to massive volcanic eruptions. 96% of all marine species, 70% of all land species and large numbers of insect species went extinct. Here, from Wikipedia:

The Permian–Triassic (P–Tr) extinction event, colloquially known as the Great Dying, the End Permian or the Great Permian Extinction,[2][3] occurred about 252 Ma (million years) ago,[4] forming the boundary between the Permian andTriassic geologic periods, as well as the Paleozoic and Mesozoic eras. It is the Earth's most severe known extinction event, with up to 96% of all marine species[5][6] and 70% of terrestrial vertebrate species becoming extinct.[7] It is the only known mass extinction of insects.[8][9] Some 57% of all families and 83% of all genera became extinct. Because so muchbiodiversity was lost, the recovery of life on Earth took significantly longer than after any other extinction event,[5] possibly up to 10 million years.[10]

There is evidence for one to three distinct pulses, or phases, of extinction.[7][11][12][13] Suggested mechanisms for the latter include one or more large bolide impact events, massive volcanism, coal or gas fires and explosions from theSiberian Traps,[14] and a runaway greenhouse effect triggered by sudden release of methane from the sea floor due tomethane clathrate dissociation or methane-producing microbes known as methanogens;[15] possible contributing gradual changes include sea-level change, increasing anoxia, increasing aridity, and a shift in ocean circulation driven by climate change.