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Ron Dimock's Home Page

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Ronald V. Dimock, Jr.

Thurman D. Kitchin Professor of Biology

Department of Biology
Wake Forest University
Winston-Salem, NC 27109


Director, Wake Forest University Mussel Research Center

Current Research:

Recent Publications from My Lab on Adult and Juvenile Unionid Mussels

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MUSSELS: guardians of your water quality!! Design by: W. Rebergen,Delta Consult,Kapelle, The Netherlands. On the right is a commercial water pollution monitor based on mussel gaping. (Delta Consult, Kapelle, NL)

The aquarium facility for housing adult and juvenile mussels in my laboratory:

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Chambers housing juveniles in a down-welling system (left) and adult U.imbecillis releasing glochidia larvae (visible as mucous strands from exhalant siphons).

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Glochidia larvae of the mussel Utterbackia imbecillis with the adductor muscle stained with a fluorochrome that binds to actin filaments. The valves are fully open. Larvae are about 280 microns in length (axis parallel to the hinge).

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Larva at day-4 of metamorphosis (upper left), with adductor muscle gone. Juvenile (upper right) 7 days post-metamorphosis showing new anterior and posterior adductor muscles. The first 3 pairs of gills filaments are partially visible (especially to the right of the mid-central foot). Lower image is of a juvenile 10 days post-metamorphosis, showing brightly fluorescing adductor muscles, some pedal musculature (center) and the heart within the pericardial sinus (toward 4 o'clock, just right of center of image, near posterior adductor).

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3-week old juvenile Pyganodon cataracta : anterior to the right, total length about 450 microns; subtriangular part of shell is original larval shell; brownish-green is silt and algae in stomach and digestive glands.

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Juvenile P. cataracta : about 5 weeks old. Individual on right is about 700 microns. Note new shell growth flanking foot on animal at right.

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10 week old P. cataracta approximately 3.5 mm long, showing well developed inhalant and exhalant siphons. Animal is in process of rejecting a mass of yellow latex beads that it has filtered out of suspension.

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Same juvenile as above showing a plume of latex beads in the flow from the exhalant siphon.

Recent Publications from My Lab on Unionicolid Mites

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The water mite U. formosa on the gill of its host mussel P. cataracta

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Photo by Ginger Fisher -- Female U. formosa

Web site devoted to Arachnology which of course includes the study of the Acari, the Order of mites, ticks, etc.

Mussel/mollusc related web sites:

Check out UNIO, a Listserver for anyone interested in the biology of freshwater mussels.

The Freshwater Mussel Conservation Society web site is an excellent source of information, with a lot of great links to useful resources on the web.

A nice molluscan resource site developed by Deborah Wills

A terrific gallery of mussel images maintained by Chris Barnhart, Unio Gallery

Home Page of the American Microscopical Society AMS, a great place for Invertebrate Biologists to gather.

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An isocrinid crinoid at a depth of 800 feet near the wreck of the "Kirks Pride", Grand Cayman Island. The pinnate arms are extended in feeding posture. Current is flowing from right to left.

Description: lettuce coralDescription: ChaetopterusDescription: Polyonyx
Description: mud crabDescription: millipedeDescription: Tube Sponge
Assorted Invertebrates (Upper left and lower right photos by Craig Nelson)

Courses I Regularly Teach at Wake Forest University:


Home pages of a few of my former MS or PhD students

The Who and Where of My Former Graduate Students

Department of Biology Home Page

Ronald V. Dimock,



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