Ontogeny of the Feeding Apparatus and Sensory

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Ontogeny of the Feeding Apparatus and Sensory W&M ScholarWorks Dissertations, Theses, and Masters Projects Theses, Dissertations, & Master Projects 2015 Ontogeny of the feeding apparatus and sensory modalities: Relationship to habitat differentiation among early life history stage drums (Sciaenidae) in the Chesapeake Bay Alison L. Deary College of William and Mary - Virginia Institute of Marine Science Follow this and additional works at: https://scholarworks.wm.edu/etd Recommended Citation Deary, Alison L., "Ontogeny of the feeding apparatus and sensory modalities: Relationship to habitat differentiation among early life history stage drums (Sciaenidae) in the Chesapeake Bay" (2015). Dissertations, Theses, and Masters Projects. Paper 1539616627. https://dx.doi.org/doi:10.25773/v5-pry1-hx22 This Dissertation is brought to you for free and open access by the Theses, Dissertations, & Master Projects at W&M ScholarWorks. It has been accepted for inclusion in Dissertations, Theses, and Masters Projects by an authorized administrator of W&M ScholarWorks. For more information, please contact [email protected]. Ontogeny of the feeding apparatus and sensory modalities: Relationship to habitat differentiation among early life history stage drums (Sciaenidae) in the Chesapeake Bay A Dissertation Presented to The Faculty of the School of Marine Science The College of William and Mary in Virginia In Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy by Alison L. Deary 2015 APPROVAL SHEET This dissertation is submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy Approve’ ’ ^ “ * fic J. Hilton, Ph.D. Committee Chflfoman/ Advisor Robert J. JLatour, Ph.D Richard W. Bnlr, Ph.D. Edward Houde, Ph.D. Chesapeake Biological Laboratory Solomons, Maryland TABLE OF CONTENTS ACKNOWLEDGMENTS............................................................................................................ i LIST OF TABLES........................................................................................................................ ii LIST OF FIGURES.....................................................................................................................iii ABSTRACT................................................................................................................................ vii AUTHOR’S NOTE................................................................................................................... viii GENERAL INTRODUCTION................................................................................................... 2 CHAPTER I: Comparative ontogeny of the feeding apparatus of sympatric drums (Perciformes: Sciaenidae) from different foraging guilds in the Chesapeake Bay.............. 6 INTRODUCTION....................................................................................................................6 MATERIALS AND METHODS............................................................................................9 RESULTS................................................................................................................................ 11 DISCUSSION..........................................................................................................................15 MATERIALS EXAMINED................................................................................................. 22 REFERENCES.......................................................................................................................22 CHAPTER 2: Development of sensory modality in early life history stage estuarine fishes (Sciaenidae) from the Chesapeake Bay using micro-computed tomography 43 INTRODUCTION................................................................................................................. 43 MATERIALS AND METHODS..........................................................................................46 RESULTS................................................................................................................................49 DISCUSSION......................................................................................................................... 52 MATERIALS EXAMINED................................................................................................. 58 REFERENCES.......................................................................................................................58 CHAPTER 3: Niche partitioning in the early life history stages of estuarine-dependent fishes from the Chesapeake Bay (family Sciaenidae)............................................................ 70 INTRODUCTION..................................................................................................................70 MATERIALS AND METHODS..........................................................................................72 RESULTS................................................................................................................................76 DISCUSSION......................................................................................................................... 79 REFERENCES....................................................................................................................... 84 CHAPTER 4: Influence of phylogeny on feeding structures in early life history stage Drums (Sciaenidae) from the Chesapeake Bay...................................................................100 INTRODUCTION................................................................................................................100 MATERIALS AND METHODS........................................................................................101 RESULTS..............................................................................................................................105 DISCUSSION....................................................................................................................... 107 MATERIALS EXAMINED................................................................................................111 REFERENCES..................................................................................................................... 115 GENERAL CONCLUSION....................................................................................................133 GENERAL REFERENCES.................................................................................................141 APPENDIX................................................................................................................................ 148 VITA...........................................................................................................................................158 ACKNOWLEDGMENTS There are so many people to thank for all of their support, guidance, and friendship during my time here at VIMS. First and foremost, I thank my family for all of their support, patience, and love. My family dealt with me during the good times and the bad times but their confidence in my ability to complete this degree motivated me, even when I could not muster the strength to motivate myself. I also want to thank my two beautiful nieces for reminding me with their enthusiasm and sense of wonder why 1 first became interested in Marine Science. I also thank the members of my lab for being amazing friends and colleagues; 1 have learned so much from working with all of you. Regardless of the weather conditions, you made early morning and late night sampling trips out to the public pier fun! In addition, our mid-day coffee runs were invaluable for my sanity and my development as a scientist. I would also like to thank all of my friends at VIMS for reminding me that it is okay to turn off the computer and set aside work for a bit. You all have made this journey to the dissertation fun and far less lonely. I also want to acknowledge so many people at VIMS for taking time out of their day and sharing their expertise with me. I want to thank D. Sennett for passing on his aquarium and animal husbandry skills and M. Stratton, K. Omori, and A. Buchheister for their help with R. I also want to thank my undergraduate mentor, G. Sancho for all of his guidance and insights. He has been a constant motivator and has provided so much positive reinforcement at the moments I needed it the most. I have had the opportunity to take advantage of many international research experiences and I would like to thank all of the people that made these trips possible, specifically N. Strydom and P. Pattrick. Finally, I want to thank Eric Hilton, my advisor, for taking me on as a student and believing that I could complete dissertation level research. Thanks to his comments, my ability to write and communicate my science has improved drastically since my arrival here at VIMS. He was also supported of my scientific wanderlust and allowed me to take advantage of research opportunities around the globe. LIST OF TABLES Page CHAPTER 1: Comparative ontogeny of the feeding apparatus of sympatric drums (Perciformes: Sciaenidae) from different foraging guilds in the Chesapeake Bay Table 1. Mean feeding apparatus length (mm) or area (mm2) for Cynoscion nebulosus, C. regalis, Micropogonias undulatus and Leiostomus xanthurus once differences in the jaw elements were observed. Average measurements were calculated between the first and second split (8.4-14.1 mm HL) and the second and third split (14.1- 19.8 mm HL) observed in the regression tree. Sample sizes for each split are
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