Synopsis
The terminal phase/initial phase ratios of four common Bahamian parrotfishes were determined by visual censuring in a variety of coral reef habitats. In general, greater environmental differences among habitats were associated with more variable phase ratios. The phase ratios of the four species remained stable over a 12 months period in the single habitat in which this was tested, These results suggest that environmental factors strongly affect the phase (and therefore sex) ratios maintained by breeding groups of parrotfishes.
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Alevizon, W., Landmeier, D. Variability in the population structures of four western Atlantic parrotfishes. Environ Biol Fish 10, 149–158 (1984). https://doi.org/10.1007/BF00001122
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DOI: https://doi.org/10.1007/BF00001122