Does anyone have a dichotomous key to help identify non-native crayfish in trade? We are specifically interested in marbled crayfish through a broad key will be useful.
Thanks
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On Jan 15, 2021, at 3:44 PM, Zachary Loughman <zlou...@westliberty.edu> wrote:
Not that I am aware of.
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On Fri, Jan 15, 2021 at 3:33 PM Ferry, Maureen M - DNR <Mauree...@wisconsin.gov> wrote:
Does anyone have a dichotomous key to help identify non-native crayfish in trade? We are specifically interested in marbled crayfish through a broad key will be useful.
Thanks
We are committed to service excellence.
Visit our survey at http://dnr.wi.gov/customersurvey to evaluate how I did.
Maureen Ferry
Aquatic Invasive Species Monitoring Lead – Bureau of Water Quality/Division of Environmental Management
Wisconsin Department of Natural Resources
101 S. Webster StreetP.O. Box 7921
Madison, Wisconsin 53703
Cell Phone: (608) 381-3231
Office Phone: (608) 261-6450
Mauree...@Wisconsin.gov
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Sorry meant to reply all -
Yes, there is the Crayfish of Missouri by William Pflieger still in print. And the Illinois Natural History survey released one field guide to crayfish of the Midwest by Chris Taylor (2015), and they do have a few invasive species listed, I believe, but can’t remember if they included the marbled crayfish?
From: invasive-crayfi...@googlegroups.com <invasive-crayfi...@googlegroups.com>
On Behalf Of Brown, Paul B
Sent: Friday, January 15, 2021 3:51 PM
To: Zachary Loughman <zlou...@westliberty.edu>
Cc: Ferry, Maureen M - DNR <Mauree...@wisconsin.gov>; Invasive Crayfish Collaborative <invasive-crayfi...@googlegroups.com>; Bunk, Heidi J - DNR <Heidi...@wisconsin.gov>; Nehls, Daniel T - DNR <Daniel...@wisconsin.gov>; Van Egeren,
Scott J - DNR <Scott.V...@wisconsin.gov>
Subject: Re: dichotomous key for crayfish?
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This is a bit dated but might be useful:
Crayfishes And Shrimp Of Wisconsin Cambaridae, Palaemonidae Paperback
Pat
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Patrice M. Charlebois
Interim Associate Director & Outreach Program Leader
Illinois-Indiana Sea Grant, University of Illinois Extension
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From: <invasive-crayfi...@googlegroups.com> on behalf of "Brown, Paul B" <p...@purdue.edu>
Date: Friday, January 15, 2021 at 2:51 PM
To: Zachary Loughman <zlou...@westliberty.edu>
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Egeren, Scott J - DNR" <Scott.V...@wisconsin.gov>
Subject: Re: dichotomous key for crayfish?
There are at least two keys. One from the Missouri department of conservation for species residing west of the Mississippi River by Bob Piper and another from the Illinois natural history survey for species east of the river. Larry Page author. Both are old and probably out of print unless they have been digitized.
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Dear Maureen Ferry,
One problem here is that all marbled crayfish are going to be females, and most of the keys we use are based on characters of the male gonopods.
My suggestion would be to sex the crayfish. If they’re male, you can already rule out a marbled crayfish. From there, use the figures in the attached manuscript (pages 548-549) to help you. Some of the more prominent characters are the open areola, the single cervical spine, the shape of the annulus ventralis, and the blotchy (marbled) coloration along the sides.
If you are looking for characters to differentiate between P. virginalis and one or more specific other species (i.e., P. clarkii) please let me know and I can whip up a little key.
Thanks,
Mael
Mael Glon, M.S.
PhD Candidate
Department of Evolution, Ecology, and Organismal Biology
Museum of Biological Diversity, Room 1308
1315 Kinnear Road, Columbus, Ohio 43212
(801) 864-2316
glo...@osu.edu
www.maelglon.com
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Look like INHS Manual 15: Field Guide to Crayfishes of the Midwest (Taylor et al, 2015) is back in stock per the INHS publications website. The dichotomous key is also available as a separate, spiral bound document.
https://shop.inrs.illinois.edu/inhs-man.html
Holly Hudson | Sr. Aquatic Biologist | Local
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Thanks for all the input on crayfish everyone!
Dr. Glon, we’d really appreciate a key for females if it’s not too much time. Thank you!
Take care,
Maureen
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From: Glon, Mael <glo...@buckeyemail.osu.edu>
Sent: Friday, January 15, 2021 3:09 PM
To: Ferry, Maureen M - DNR <Mauree...@wisconsin.gov>; Invasive Crayfish Collaborative <invasive-crayfi...@googlegroups.com>
Cc: Bunk, Heidi J - DNR <Heidi...@wisconsin.gov>; Nehls, Daniel T - DNR <Daniel...@wisconsin.gov>; Van Egeren, Scott J - DNR <Scott.V...@wisconsin.gov>
Subject: Re: dichotomous key for crayfish?
Dear Maureen Ferry,