Send to a Friend

rebbel's avatar

What is the situation/consistence of the water on the border of salt water to fresh water?

Asked by rebbel (35550points) January 8th, 2012

Rivers end up in oceans.
River water is fresh water, whereas sea water is saline.
What is the water like at the point where the river ends up in the sea?
Is there a physical/steady border (where the river stops being a river), or is the border there where the consistency of the water reached a certain level of salinity (or freshness)?
As a side question: do fresh water fishes feel/taste/notice that the river reached its end, and will they then turn around asap?

Using Fluther

or

Using Email

Separate multiple emails with commas.
We’ll only use these emails for this message.