Elwha River

#7
Another question in my mind. I was watching a video on Youtube, about the silt from the second dam. According to the vid, the silt was a good thing for sand lance and other salmon food. I was under the impression that silt was bad for the redds. Where am I going wrong?
 
#9
So the plan is that once the silt is in place, the flushing action of the river will open the raceways for the redds to develop?

Will the silt not hamper the fish for some time?
 
#11
Well that is good news. Thanks for the info, guys.
Silt for the sand lance to lay eggs, food for the salmon to lay eggs, food for the steelhead.

It is all good. Ain't Mother Nature Grand.
 
#14
Another question in my mind. I was watching a video on Youtube, about the silt from the second dam. According to the vid, the silt was a good thing for sand lance and other salmon food. I was under the impression that silt was bad for the redds. Where am I going wrong?
Yes, the silt is good for the Sand Lance and the silt they are talking about is the silt that is being deposited at the river's mouth. The delta is getting built up and creating more habitat for the Sand Lance to lay their eggs.
 

Smalma

Active Member
#15
Sand lance and surf smelt spawn high up on the intertidal portions of the beaches. They deposit their eggs among the very small pebbles found on the upper reaches of the beach. Because those eggs are so high on the beach they are exposed for extended periods of time as the tide is out. Those eggs are vulnerable to being dried out. Having a sediments mixed in with those spawning pebbles helps to retain the moisture the eggs need to develop and successfully hatch. When one thinks about it is amazing how the various fish found in the area have adapted to natural processes of the area and each species carving out special niches in those dynamic processes.

BTW -
The source of those critical sediments typically are inputted from eroding bluffs or river sediments. That is way the hardening of Puget Sound beaches and bluffs with rip-rap etc. has such negative impacts on the forage fish base of the region.

curt