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11-21-06 In southern Detroit


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#21 Guest_farmertodd_*

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Posted 07 February 2007 - 12:27 PM

I heard Brian mention this last trip and it just didn't register until later, which I forgot to bring up :)

Where did you get the northern madtoms? I've been watching for them in the Raisin as well, but have only seen brindled.

Todd

#22 Guest_daveneely_*

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Posted 07 February 2007 - 01:52 PM

If there's the potential of them being deepwaters, yeah, I wouldn't mind taking a look at them. There's some weird things going on with bairdii up there too, and now that the gobies are knocking them down, it's made it difficult to figure out where the natural break between the two things formerly occurred.

Drop me an email and I'll send you a mailing address.

we do, if you want to look at them Dave I could mail them to you.



#23 Guest_smbass_*

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Posted 07 February 2007 - 01:54 PM

They just about all came from the river rouge powerplant, there may have been a couple from trenton channel both of which are directly on the detroit river. So it appears there is still a decent population of them in the detroit. I'd be very interested in what a botom traul would drag up in some of the swifter areas that have some gravel on the botom of that river.

#24 Guest_farmertodd_*

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Posted 07 February 2007 - 02:45 PM

Yeah I think we should try and talk Bob Hrabik into taking his trawl up there too when he brings it out this summer. I think he's doing the Wabash (Simon) and Scioto (Yoder), maybe the Kanawah? I bet the USGS guys in Motown would love to have him make a stop on their tour!

Did you guys survey any of the "klinker" beds they're laying down to start giving the channel some morph? The big piles of spent coal? I thought that was pretty ingenious. Apparently whitefish are already spawning on them. May be too fast for an e-boat though.

Todd

#25 Guest_smbass_*

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Posted 07 February 2007 - 03:03 PM

These powerplant samples are mainly just impingement samples (fish that got stuck on the intake screens) nothing done with boats, and the only netting is some limited use in front of the intake screens not out in the main channel at all.

#26 Guest_farmertodd_*

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Posted 07 February 2007 - 04:44 PM

You have to be kidding me. That needs night trawled, that could be a huge population. We'll see if Bob picks up this thread. If not, I'll get ahold of him. Are you guys working with the USGS people at all? One of them is adjunct faculty to our department somehow. When is Jeff's study done?

#27 Guest_smbass_*

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Posted 07 February 2007 - 05:10 PM

Nate probably knows better when the current study is suposed to end since I am not actually working on it right now. This study is through a canadian consulting company and is just for recertification of how much the plants are killing. They are required (I beleive by the EPA) to be recertified every 15 or 20 years (something like that) and then till it is assessed again they pay for that amount of fish killing anually till they are recertified again. I beleive this is the first re-certification so this has only been done once before and I think the extended work that Nate is working on now is only because they were alarmed and did not want to pay for as much as we found last year and they are redoing the winter samples and they got lucky and probably will replace our original data because they are not finding as much this time around. Basically they weasled their way out of it with the help of milder weather for a large part of the winter.

And I agree when you think how small our sample is compared to the size of that river it could indeed be a huge population of the northern madtoms.

#28 Guest_Skipjack_*

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Posted 07 February 2007 - 05:32 PM

If I am not mistaken, Brooklamprey has been in contact with Bob concerning the deepwater trawl.

#29 Guest_Brooklamprey_*

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Posted 07 February 2007 - 07:27 PM

If I am not mistaken, Brooklamprey has been in contact with Bob concerning the deepwater trawl.


I have permits secured for using the benthic trawl in the Northern part of the Detroit river. I have however been a bit stymied with unexpected funding and time constraints at the moment to come up with a good plan to bring Bob here to work this thing.

If Manny and Co. with USGS would be interested in having him out this would be great....They have a bit better funding and staff to pull off a really good sample of the corridor from one end to the other. I have not talked with Bruce about this but if either of you (Todd or Brian) would be interested in approaching him I'm sure he would go for it. Please keep me in the loop on this should you wish to proceed..



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