Aphanomyces invadans in Atlantic menhaden along the East Coast of the United States

Vicki Suzette Blazer, J. H. Lilley, W. B. Schill, Y. Kiryu, C. L. Densmore, V. Panyawachira, S. Chinabut

Research output: Contribution to journalArticle

40 Citations (Scopus)

Abstract

The cause of deeply penetrating ulcers of Atlantic menhaden Brevoortia tyrannus has been the subject of significant research efforts in recent years. These lesions and the associated syndrome termed ulcerative mycosis have been observed along the East Coast of the United States since at least the early 1980s. Although Aphanomyces spp. were isolated from these lesions in the mid to late 1980s, similar lesions could not be reproduced by experimental infections of Atlantic menhaden with these isolates. The identical characteristic histologic appearance of granulomatous inflammation surrounding the penetrating fungal hyphae occurs in fish with epizootic ulcerative syndrome (EUS), as reported throughout South Asia, Japan, and Australia. Aphanomyces invadans has been found to be the causative agent of EUS in all of these countries. Using methods developed for the study of EUS, we successfully isolated an organism for which the DNA sequence, morphology, temperature and salinity growth characteristics, and infectivity of chevron snakehead Channa striata are identical to A. invadans. Using the polymerase chain reaction assay for A. invadans, we were able to demonstrate the presence of the organism from Atlantic menhaden lesions collected in U.S. estuarine waters from Delaware to South Carolina. In addition, the organism was present in lesions on a bluegill Lepomis macrochirus from a farm pond in Georgia and channel catfish Ictalurus punctatus from a farm pond in Louisiana.

Original languageEnglish (US)
Pages (from-to)1-10
Number of pages10
JournalJournal of Aquatic Animal Health
Volume14
Issue number1
DOIs
StatePublished - Jan 1 2002

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Brevoortia tyrannus
Aphanomyces
lesion
lesions (animal)
coasts
Channa striata
farm ponds
coast
Lepomis macrochirus
Ictalurus punctatus
organisms
pond
farm
South Asia
mycoses
infectivity
brackish water
polymerase chain reaction
hyphae
pathogenicity

All Science Journal Classification (ASJC) codes

  • Aquatic Science

Cite this

Blazer, V. S., Lilley, J. H., Schill, W. B., Kiryu, Y., Densmore, C. L., Panyawachira, V., & Chinabut, S. (2002). Aphanomyces invadans in Atlantic menhaden along the East Coast of the United States. Journal of Aquatic Animal Health, 14(1), 1-10. https://doi.org/10.1577/1548-8667(2002)014<0001:AIIAMA>2.0.CO;2
Blazer, Vicki Suzette ; Lilley, J. H. ; Schill, W. B. ; Kiryu, Y. ; Densmore, C. L. ; Panyawachira, V. ; Chinabut, S. / Aphanomyces invadans in Atlantic menhaden along the East Coast of the United States. In: Journal of Aquatic Animal Health. 2002 ; Vol. 14, No. 1. pp. 1-10.
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Blazer, VS, Lilley, JH, Schill, WB, Kiryu, Y, Densmore, CL, Panyawachira, V & Chinabut, S 2002, 'Aphanomyces invadans in Atlantic menhaden along the East Coast of the United States', Journal of Aquatic Animal Health, vol. 14, no. 1, pp. 1-10. https://doi.org/10.1577/1548-8667(2002)014<0001:AIIAMA>2.0.CO;2

Aphanomyces invadans in Atlantic menhaden along the East Coast of the United States. / Blazer, Vicki Suzette; Lilley, J. H.; Schill, W. B.; Kiryu, Y.; Densmore, C. L.; Panyawachira, V.; Chinabut, S.

In: Journal of Aquatic Animal Health, Vol. 14, No. 1, 01.01.2002, p. 1-10.

Research output: Contribution to journalArticle

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