A Deeper Look at Hawaiian Coral Reef Fish Assemblages: A Comparison of Survey Approaches and Assessments of Shallow to Mesophotic Communities

This PhD provides a comparative analysis between underwater visual censuses, and provides new information on shallow to mesophotic reef fishes/predator communities in the Hawaiian Archipelago. Results show that 1.) 60-minute, baited surveys were most effective in capturing overall populations, 2.) f...

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Bibliographic Details
Main Author: Asher, Jacob
Format: Thesis
Published: Curtin University 2017
Online Access:http://hdl.handle.net/20.500.11937/59686
Description
Summary:This PhD provides a comparative analysis between underwater visual censuses, and provides new information on shallow to mesophotic reef fishes/predator communities in the Hawaiian Archipelago. Results show that 1.) 60-minute, baited surveys were most effective in capturing overall populations, 2.) functional group composition shifts between shallow water, upper, and lower-mesophotic zones in the MHI, as do top-level predators in both the MHI and NWHI, and 3.) predator abundances remain inconsistent between diver and video-based methodologies.