961 resultados para Clean hands
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Title varies slightly.
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Shipping list no.: 98-0052-P (pt. 1), 98-0155-P (pt. 2).
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Mode of access: Internet.
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Mode of access: Internet.
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"DE95009205"--P. [4] of cover.
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Prepared for the use of the Senate Committee on Labor and Public Welfare and the House Committee on Interstate and Foreign Commerce.
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Apart from cleaner fish, there are many reports on cleaning by shrimps, yet whether shrimps actually 'clean', i.e. eat parasites in the wild, has not been demonstrated. For the first time, we show that, conclusively, cleaner shrimp in the wild do clean. We found crustacean ectoparasites from the Family Gnathiidae and the Class Copepoda in the gut contents of wild cleaner shrimp, Urocaridella sp. and Periclimenes holthuisi. In addition, they ate parasitic monogenean flatworms, Benedenia sp., offered to them in the laboratory. Finally, P. holthuisi, significantly reduced monogenean, Benedenia sp., loads by 74.5% on captive surgeonfish Ctenochaetus striatus within 48 h. Such large reductions in parasite loads are likely to benefit individual fish. These results emphasise the need for more information on the ecological role of cleaner shrimp on coral reefs.