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Journal Article

A Unique Symbiosis in the Gut of Tropical Herbivorous Surgeonfish (Acanthuridae: Teleostei) from the Red Sea

Lev Fishelson, W. Linn Montgomery and Arthur A. Myrberg
Science
New Series, Vol. 229, No. 4708 (Jul. 5, 1985), pp. 49-51
Stable URL: http://www.jstor.org/stable/1695432
Page Count: 3
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A Unique Symbiosis in the Gut of Tropical Herbivorous Surgeonfish (Acanthuridae: Teleostei) from the Red Sea
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Abstract

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.

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