Feeding preferences of two seagrass grazing monacanthid fishes

Blackwell Publishing
Publication Type:
Journal Article
Journal Of Fish Biology, 2007, 71 (1), pp. 272 - 278
Issue Date:
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Two seagrass grazing fishes, Meuschenia freycineti and Meuschenia trachylepis (Monacanthidae), were offered three choices of Posidonia australis seagrass blades of different epiphyte coverage and leaf age to determine whether these fishes exhibit a preference for epiphyte covered seagrass blades. Both species removed significantly more biomass f the epiphyte-covred blades than of the two other blade types un multiple-choice tests. this clear preference for epiphyte-covered seagrass blades results in a preferred removal of older blades within the seagrass shoot of P. australis.
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