Fly Fishing for Trout Home
User Password
or register.
Scientific name search:

> > Flood effects on trout?

RogueratApril 20th, 2013, 8:24 am
Posts: 472
we've experienced record rain-falls and subsequent flooding of W Michigan rivers the past 2 weeks, as of today I don't plan on getting in a river for the next 2 weeks as well.
does anyone have experience or information for extreme flood-effects on trout? do they just try to hold and survive, get washed downstream, ??

my home stream, the Rogue, is flowing more than 3x it's normal CFS for this time of year, and the Muskegon is way up there too.

The Roguerat

I Peter 5:7 'Cast your cares upon Him..'
The3PsApril 20th, 2013, 9:02 am
Norway, Maine

Posts: 3
Quite sure they will hunker down and stay put in a deep hole with less current. Some will wash down but will come back just as soon as water levels go down. Not to worry,flood waters are normal and been going on from the beginning of time.
Patience, persistence, presentation!
SayfuApril 20th, 2013, 9:41 am
Posts: 560Here is one that I bantered around, and has been speculated on for sometime now. I discussed it with Bob Jacklin. Why have we had a poor terynarcys californica emergence for a handful of years now? It appears the riparian zone destruction caused by rising waters can have an effect. Authorities out here don't want to attribute it to the extreme raising of the water levels in order to negatively effect rainbow spawning, and protect the cutthroat that spawn about a month later. The water can be say 10,000 cfs, and they bump it up to 23,000 cfs right around the time the big bugs are starting their nymph migration towards the banks. That doesn't effect rivers in Bob's Yellowstone area, but he did mention riparian destruction that are readily evidenced in some of their stretches of river on the Madison.
PaulRobertsApril 23rd, 2013, 1:20 pm

Posts: 1776
Here's a previous thread:
MontanaMikeApril 29th, 2013, 4:27 pm
Posts: 4
The Gallatin and Yellowstone blow out every year and the trout populations stay normal. Its incedible how they can hold to rocks in such turbid currents. I wouldnt worry too much unless it displaces fish in places they could get trapped. However, trout seek out the right temperatures and have a good feel on where they are. With irrigation canals here always rising and drying up, the trout tend to just go with the flow.
My Trout Fishing Adventure
JesseApril 29th, 2013, 10:17 pm
Posts: 378
Okay flooding, especially in an extreme fashion such as yours, is both good and bad. It is bad because depending on the spawning fish (im going to go with brown trout), their eggs/babies most likely won't be able to survive that type of water environment. The muddy, high pressuring flows aren't good for young trout. As for larger trout, i have found that it could be a good thing for many reasons. One being that it takes away fishing pressure. Two being that a lot of food is activated such as other smaller fish. Three being that it allows fish to move to areas they normally wouldn't - such as small tributary streams. After flooding you could find fish in very unlikely places, which will most likely keep them stranded until the next high water, movable opportunity. With all this good, however, the bad side (other than effects on young trout), is that flooding is no longer a natural process. Sure rivers come up as they always have, but now instead of natural riparian areas surrounding a stream as they once did, humans have ruined that. Whatever we may be doing upstream will get washed down. Flooding now means chemicals possibly being in the river, along with numerous other negative potentials. So... There is good and bad. Hope that helps.
Most of us fish our whole lives..not knowing its not the fish that we are after.

Quick Reply

You have to be logged in to post on the forum. It's this easy:
Username:          Email:

Password:    Confirm Password:

I am at least 13 years old and agree to the rules.

Related Discussions

TitleRepliesLast Reply
Re: new member
In General Discussion by Epeirce
1Mar 5, 2008
by Jjlyon01
Re: Site updates from September 13, 2019
In Site Updates by Troutnut
3Sep 22, 2019
by Troutnut
Re: Chilly Day in Pennsylvania
In Fishing Reports by Martinlf
4Mar 29, 2018
by Adirman
Re: Neophyte questions...
In Beginner Help by Coralrives
5Sep 19, 2013
by Crepuscular
Re: warming streams
In General Discussion by Ike
3Oct 3, 2013
by Entoman
Re: Flooding Effects?
In General Discussion by Jesse
8Feb 15, 2012
by Jesse
Re: Epic Streamer Crushing!
(4 more)

In the Photography Board by Wbranch
4Nov 22, 2016
by PaulRoberts
Re: New tech.
In the Photography Board by Chris_3g
3Jul 29, 2008
by Trtklr
Re: Spotting Trout
In General Discussion by TimCat
2Mar 28, 2016
by TimCat
My trip to the San Juan River (part 3)
In General Discussion by Mcflyangler
Most Recent Posts
Re: Rod and reel suggestion?
In Gear Talk by 87North (Erallommakr replied)