Aquarium Sciences and Conservation

, Volume 3, Issue 1, pp 215–223

Feeding Electivity Indices in Surgeonfish (Acanthuridae) of The Florida Keys

Authors

  • G. Christopher Tilghman
    • Fisheries and Aquatic Sciences, Institute of Food and Agricultural SciencesUniversity of Florida
  • RuthEllen Klinger-Bowen
    • Fisheries and Aquatic Sciences, Institute of Food and Agricultural SciencesUniversity of Florida
  • Ruth Francis-Floyd
    • Large Animal Clinical Sciences, Institute of Food and Agricultural SciencesUniversity of Florida
Article

DOI: 10.1023/A:1011338716923

Cite this article as:
Tilghman, G.C., Klinger-Bowen, R. & Francis-Floyd, R. Aquarium Sciences and Conservation (2001) 3: 215. doi:10.1023/A:1011338716923

Abstract

Three species of surgeonfish Acanthurus coeruleus (blue tang) (Block and Schneider), A. bahianus (ocean surgeonfish) (Castelnau), and A. chirurgus (doctorfish) (Block) were captured in the waters of the Florida Keys (24°03′N, 81°40′W). In total, 39 of these fish were captured between March and December of 1999. Items found in the stomachs of these fish were identified and analyzed for percent occurrence. These values were compared to percent occurrence values of the same items from random bottom transects taken at the point of capture to quantify any forage selectivity or avoidance behavior of these fish. A. bahianus selected for sand and chlorophytes and avoided phaeophytes. A. chirurgus also showed selection for sand and chlorophytes, while 58% of those sampled selected for phaeophytes and 42% avoided them. A. coeruleus avoided sand and selected for rhodophytes and chlorophytes. Phaeophytes were also selected for in 80% of A. coeruleus sampled. Understanding food preferences of free-ranging Florida surgeonfish may provide insight to improve nutritional management of captive herbivorous reef fish.

surgeonfish tangs diet behavior Acanthuridae

Copyright information

© Kluwer Academic Publishers 2001