Please use this identifier to cite or link to this item: http://hdl.handle.net/10125/67576

PHYLOGEOGRAPHY AND EVOLUTION OF MESOPHOTIC CORAL ECOSYSTEMS

File Size Format  
Copus hawii 0085A 10528.pdf 8.93 MB Adobe PDF View/Open
File under embargo until 2020-09-24

Item Summary

Title:PHYLOGEOGRAPHY AND EVOLUTION OF MESOPHOTIC CORAL ECOSYSTEMS
Authors:Copus, Joshua M.
Contributors:Bowen, Brian R. (advisor)
Zoology (department)
Keywords:Zoology
Biological oceanography
Biology
Coral Reefs
Marine Biology
show 4 moreMarine Fishes
Mesophotic Reef Ecosystems
Phylogeography
Taxonomy
show less
Date Issued:2020
Publisher:University of Hawai'i at Manoa
Abstract:In this dissertation, I begin to address the phylogeography and evolution of the unique reef fish fauna of the mesophotic zone, generally regarded as beginning at 30 - 150 m depth. Chapter 1 is an introduction to the topic and background for subsequent chapters. As the field of mesophotic research matures, we can move beyond descriptive studies and begin to construct hypotheses for the origins and evolution of mesophotic reef fishes. Accordingly, Chapter 2 describes the habitat persistence hypothesis (HPH), which postulates that mesophotic reef fish communities are older and more stable than their shallow water counterparts. This hypothesis is based on two fundamental observations; 1) Mesophotic communities are extend below the surface waters that are subject to glacial sea level changes on a scale of 106 years, and 2) The shallow water biodiversity gradient, extending from the Coral Triangle (between Philippines, Indonesia, and New Guinea) to Rapa Nui in the eastern Pacific, may not apply to mesophotic communities. This chapter is a formal description of the HPH, and outlines a set of testable hypotheses to evaluate the validity of the HPH. Chapter 3 is a description of the mesophotic fish species Neoniphon pencei. Chapter 4 is a description of the mesophotic fish species Luzonichthys seaver, and Chapter 5 is a description of the mesophotic fish species Prognathodes geminus. These data will provide some of the first descriptions of MCE fishes, and provide a beginning point for testing phylogenetic hypotheses about the origins of mesophotic fishes. Chaper 6 provides a brief conclusion.
Pages/Duration:132 pages
URI:http://hdl.handle.net/10125/67576
Rights:All UHM dissertations and theses are protected by copyright. They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission from the copyright owner.
Appears in Collections: Ph.D. - Zoology (Ecology, Evolution and Conservation Biology)


Please email libraryada-l@lists.hawaii.edu if you need this content in ADA-compliant format.

Items in ScholarSpace are protected by copyright, with all rights reserved, unless otherwise indicated.