11-17-2014, 09:51 AM
quote:
Originally posted by Kapohocat
quote:
Originally posted by HereOnThePrimalEdge
So the fish in the tide pools could have been affected by too much fresh (rain) water?
My uneducated guess is yes in the shallow inside ponds.
In the open ocean the rain would mix better and allow room for a halocline that is not in the tide pools.
Halocline defination - (I had to look it up so yes Wikipedia) - "In oceanography, a halocline is a subtype of chemocline caused by a strong, vertical salinity gradient within a body of water. Because salinity (in concert with temperature) affects the density of seawater, it can play a role in its vertical stratification. Increasing salinity by one kg/m3 results in an increase of seawater density of around 0.7 kg/m
I remember scuba diving on a beach in Carmel where a small river was flowing into a bay. When we were descending you could definitely see a horizontal layer of cloudy water (blurry seems more accurate) for the first few feet. Below that it cleared up. I always assumed it was fresh/brackish water on top and "pure" seawater below and thought "halocline". Interesting that the article says "verticle" as this was definitely horizontal. Think of a container that has oil and water: horizontal layers.
Edit: Ok, I went back, re-read it and understand what they meant. Soooo nevermind!