Northeast Fish Ladders/Elevators

[Solid]

"Scientists and engineers set targets for the transport capacity of fish passages. And yet, the study lays bare that those targets are being missed by orders of magnitude. For instance, the first Merrimack River dam aims to let 300,000 river herring pass through; the mean number for the years 2008 to 2011 was 706 per year."

READ MORE HERE

[s2ary]

That's funny, because if you ask the NMFS they claim their fish 'swim right up them'. There is no need to structure a ladder to actually look like a river or shade it with trees...'that stuff is all cosmetics and means nothing to me'.

I think somewhere I saw that of the fish that actually find the ladder, only 1 in 11 actually enter it.

And don't get me going on elevators and traps...they catch the stupid fish...'You...Out Of The Gene Pool.'

[wet_fly_action]

It looks like they are seeing the writing on the wall.
What amazes me is that they got away with running things the way they have been for as long as they have.
The Penobscot will be the new model and this is a great thing.

[natefish]

Interesting. I know from experience that the Alwife population in the Lamprey river made good use of the fish ladder there, wonder what the major difference is. River size? Species? Not sure what numbers the Lamprey had but there were way more than 700 fish swarming around Wiswall dam each spring when I used to fish there.

[HarrisRobin]

I guess lamprey river is good for fishing. Which season is good for going out fishing ?

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