A unique symbiosis in the gut of tropical herbivorous surgeonfish (acanthuridae: teleostei) from the red sea

Lev Fishelson, W. Linn Montgomery, Arthur A. Myrberg

Research output: Contribution to journalArticle

76 Scopus citations


Herbivorous surgeonfish (Acanthurus species) in the Red Sea harbor gut symbionts that include bacteria, trichomonadid flagellates, and a peculiar putative protist that attains densities of 20,000 to 100,000 cells per milliliter of gut contents. The structure, mode of reproduction, and within-gut distribution of the latter are described. This may be the first report of an organism of this type and the first evidence of a consistent endosymbiosis in the gut of a herbivorous marine fish.

Original languageEnglish (US)
Pages (from-to)49-51
Number of pages3
Issue number4708
StatePublished - Jan 1 1985


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