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Journal Article

Distributional patterns and community structure of Caribbean coral reef fishes within a river-impacted bay

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Mallela,  J.
Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Harrod,  C.
Department Ecophysiology, Max Planck Institute for Limnology, Max Planck Institute for Evolutionary Biology, Max Planck Society;
Department Evolutionary Genetics, Max Planck Institute for Evolutionary Biology, Max Planck Society;

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Citation

Mallela, J., Roberts, C., Harrod, C., & Goldspink, C. R. (2007). Distributional patterns and community structure of Caribbean coral reef fishes within a river-impacted bay. Journal of Fish Biology, 70(2), 523-537. doi:10.1111/j.1095-8649.2007.01323.x.


Cite as: https://hdl.handle.net/11858/00-001M-0000-000F-D7DA-D
Abstract
This study examined how riverine inputs, in particular sediment, influenced the community structure and trophic composition of reef fishes within Rio Bueno, north Jamaica. Due to river discharge a distinct gradient of riverine inputs existed across the study sites. Results suggested that riverine inputs (or a factor associated with them) had a structuring effect on fish community structure. Whilst fish communities at all sites were dominated by small individuals (< 20 cm), diversity and total biomass were reduced with increased proximity to the river mouth. The abundance of all fishes, but particularly small-bodied, juvenile and herbivorous fishes was reduced in turbid water when compared to clear-water sites. Results strongly suggest that fluvial sediment inputs may play an important role in structuring fish assemblages even under intense fishing pressure.