the salt content of the pacific ocean is 35.
the salt content of the pacific ocean is 35.
what is the salt content of the pacific ocean?
35
gulf hagfish









































the gulf hagfish ("eptatretus springeri") is the only known species with the ability to enter brine pools, or pools of extremely high salt content, unharmed. these pools resemble lakes on the ocean floor. they exist in both the gulf of mexico and the mediterranean sea. the high salt content, approximately 200 ppt compared to 35 ppt for standard seawater, creates a buoyant surface which renders oceanic submersibles unable to descend into the pool. often, other species can be seen floating lifelessly on the surface. it is believed that the pools only support bacterial life.









































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bullet::::- hagfish
gulf hagfish
the density of salt water depends on the dissolved salt content as well as the temperature. ice still floats in the oceans, otherwise they would freeze from the bottom up. however, the salt content of oceans lowers the freezing point by about 1.9 °c (see here for explanation) and lowers the temperature of the density maximum of water to the former freezing point at 0 °c. this is why, in ocean water, the downward convection of colder water is "not" blocked by an expansion of water as it becomes colder near the freezing point. the oceans' cold water near the freezing point continues to sink. so creatures that live at the bottom of cold oceans like the arctic ocean generally live in water 4 °c colder than at the bottom of frozen-over fresh water lakes and rivers.
properties of water