Fukunaga et al. 2017

scientific article | Coral Reefs

Changes in mesophotic reef fish assemblages along depth and geographical gradients in the Northwestern Hawaiian Islands

Fukunaga A, Kosaki RK, Wagner D

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Mesophotic coral ecosystems (MCEs) extend from 30 to 150 m in depth and support diverse communities of marine organisms. We investigated changes in the structure of mesophotic reef fish assemblages (27–100 m) in the Northwestern Hawaiian Islands (NWHI) along depth and geographical gradients using open- and closed-circuit trimix diving. There were clear changes in the assemblage structure from the southeastern to the northwestern end of the NWHI and from shallow to deep waters. Interactive effects of depth and location were also detected. MCEs in the NWHI can be treated as three regions: southeastern and mid regions primarily separated by the presence and absence, respectively, of the introduced species Lutjanus kasmira, and a northwestern region where fish assemblages are largely composed of endemic species. These spatial patterns may be explained, at least in part, by differences in temperature among the regions.

10.1007   s00338 017 1569 6
Meta-data (pending validation)
Depth range
27- 100 m

Mesophotic “mentions”
24 x (total of 3114 words)

Biodiversity Community structure Ecology

Research focus

USA - Hawaii

Research platforms
Diving - Technical Open-Circuit Diving - Technical Rebreather
Author profiles
Atsuko Fukunaga ( 3 pubs)
Randall Kosaki ( 12 pubs)
Daniel Wagner ( 21 pubs)