An SEM image of an armored (thecate) freshwater dinoflagellate, Peridinium limbatum; copyright 1997 Susan Carty

The Freshwater Dinoflagellates

. . . and other algae


Susan Carty, Ph.D.* and Victor W. Fazio III

*Susan Carty, Dept. of Biology, Heidelberg College, Tiffin OH 44883

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At Left: Peridinium limbatum: an SEM of a cell from culture; in 2003 we saw our first "wild" limbatum as the species proved moderately common in samples from the Upper Peninsula of Michigan.

List of the Freshwater Dinoflagellates in Ohio
. . . with county distribution maps

Freshwater Dinoflagellate Image Archive

. . . please contact Susan Carty regarding the use of these images.

Recent Publications & Research

In 2003, Academic Press published the "Freshwater Algae of North America: Ecology and Classification". Includes the Chapter "Dinoflagellates" by Susan Carty.
Check here for availability


Year 2001 trip to Ecuador resulted in this presentation at Botany 2002; abstract online

Desmids and dinoflagellates of Ecuador . . . by Susan Carty and John D. Hall II.

1996 & 1998 trips to Belize resulted in this 2001 publication presenting a new species of freshwater dinoflagellate; whole article online
A New Species of Peridinium and New Records of Dinoflagellates and Silica-Scaled Chrysophytes from Belize . . . by Susan Carty and Daniel E. Wujek

Latest Images -
Winter 2003-04

from the . . . .

Collection in 2003

The 2003 field season saw us trek across the United States twice in an effort to flesh out the biogeography of the freshwater dinoflagellates. In March, we travelled 4500 miles to the Lower Rio Grande Valley of Texas via the oxbow lakes of the Mississippi River through Kentucky, Tennessee, Mississippi, and Louisiana. We returned via west-central Texas, southwest Oklahoma, and Arkansas. Despite the early season, we met with success, especially in Arkansas. This August we put some 6700 miles behind us via Nebraska, Wyoming, Utah, Idaho, Washington, returning via Montana, North Dakota, Minnesota, Wisconsin, and Michigan. In addition to dozens of reservoirs and marshes, we sampled high altitude (above 7000 ft.) playa lakes in WY, a glacial lake in WA, prairie potholes in ND, black water (peat) of MN, and the brown water of the Upper Peninsula of MI. The UP was every bit as diverse as anticipated while the alkali conditions of the prairie potholes may have contributed to a dearth of specimens there. More recently in September, we obtained our first Dinos from West Virginia.

Links to Freshwater Dinoflagellate Resources
Review of WWW Images of Freshwater Dinoflagellates

Page established 22 Nov. 1997 ; graphic design/construction/maintenance by Victor W. Fazio III ( / last modified 23 October 2003

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