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ARS Home » Southeast Area » Stoneville, Mississippi » Warmwater Aquaculture Research Unit » Research » Publications at this Location » Publication #152329
Title: IDENTIFICATION OF EUGLENOIDS THAT PRODUCE ICHTHYOTOXIN(S)(EUGLENOPHYTA)

Author
item TRIEMER, R - MICHIGAN STATE UNIV.
item Zimba, Paul
item ROWAN, M - N.C. STATE UNIV.

Submitted to: Phycological Society of America
Publication Type: Abstract Only
Publication Acceptance Date: 4/1/2003
Publication Date: 6/1/2003
Citation: Triemer, R.E., Zimba, P.V., Rowan, M. 2003. Identification of euglenoids that produce ichthyotoxin(s)(euglenophyta). Phycological Society of America Annual Meeting. Abstract #24.

Interpretive Summary:

Technical Abstract: Diatoms, dinoflagellates, pelagiophytes, prymnesiophytes, and cyanobacteria are the only divisions of microalgae known to produce toxins. We now report toxin production by freshwater members of the genus Euglena. Fish mortalities (sheepshead minnows, catfish, striped bass, and tilapia) have been observed following exposure in the field to Euglena blooms and in the laboratory when exposed to unialgal isolates of two species of Euglena (E. sanguinea Ehrenberg and E. granulata (Klebs) Lemm). Three toxic fractions have been isolated from unialgal isolates of both species, and include both water soluble and lipophilic compounds having ichthyotoxic activity.