DOCSLIB.ORG

Diet Diversity and Functional Homogenization in Herbivorous Reef Fishes

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Diet Diversity and Functional Homogenization in Herbivorous Reef Fishes PICKY EATER OR GENERALIST FEEDER? DIET DIVERSITY AND FUNCTIONAL HOMOGENIZATION IN HERBIVOROUS REEF FISHES A DISSERTATION SUBMITTED TO THE GRADUATE DIVISION OF THE UNIVERSITY OF HAWAIʻI AT MĀNOA IN PARTIAL FULFILLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY IN MARINE BIOLOGY (SPECIALIZATION IN ECOLOGY, EVOLUTION, AND CONSERVATION BIOLOGY) May 2020 By Eileen M. Nalley Dissertation ComMittee: Robert J. Toonen, Chairperson Megan J. Donahue Mark A. Hixon Brian W. Bowen AMber N. Wright Keywords: herbivore, specialization, metabarcoding, homogenization © Copyright 2020 – Eileen Nalley All Rights Reserved. i DEDICATION This work is dedicated to Dr. Stephen Karl, who gave me the chance to get started, to Ms. Susan Tittlebaum and Dr. Mary Gubala, who inspired me to pursue a career in science, and to my faMily, who supported and encouraged me every step of the way. ii ACKNOWLEDGEMENTS I would first like to thank Steve Karl for welcoming me into his lab and for opening the door for me to the University of HaWaiʻi. I will alWays be grateful for this opportunity. I also appreciate the mentorship of Rob Toonen and Megan Donahue. Without theM, none of this work Would have been possible. Rob alWays has an ansWer in a tiMe of crisis or a joke in tiMes of calM. He gives so much to his Work and to his students, and it has been such a privilege to work With hiM. Megan’s Willingness to tackle neW ideas and challenges serves as a constant reMinder that the joy of learning never ends, and I aM so thankful for her humor and guidance. I would also like to thank the other meMbers of my comMittee. Brian, Who along with Rob, welcomed Me into the ToBo Lab and provided an aMazing exaMple of what it means to be a great person, in addition to being a great scientist. Mark’s Willingness to coMMunicate outside of acadeMia is an inspiration to students trying to navigate the murky boundaries of science and policy that we face at present. AMber has been supportive and encouraging from the beginning, giving feedback that is alWays insightful and transcends the land-sea boundary. In addition, I would like to thank Adel Heenan, who has been an integral part of much of this dissertation work. Her positivity is a wonder and an inspiration, and I aM so fortunate to have had the chance to work with her. Molly TiMMers and Rachael Wade have also provided so Much feedback and guidance throughout this process. They blazed the way in metabarcoding, and without theM I would have been lost. I also owe a huge debt of gratitude to Richard ColeMan for being willing to share and to Derek Kraft and Julie Zill for their expert fishing skills. I also received help from dedicated undergraduate research assistants (Luis Espinosa, Ryan Shiesha, Sydney Luitgaarden, Madeline Schmidbauer, Alex Mathers, Morgan Pugh, and the OPIHI creW). In addition, I want to thank the residents, facilities, fiscal, and administrative teaMs at the HaWaiʻi Institute of Marine Biology for all that they do. Nothing would happen without theM. I received daily support in the form of laughs, comMiseration, enthusiasM, and friendship from the meMbers of the Karl, ToBo, and Donahue Labs. Thank you all for being so Wonderful. In addition, I want to thank the Vaughan Lab for welcoming me into their piko and teaching me so much. I also want to thank the KaPAʻA creW for all of the lessons and for the inspirational Work that you are doing. In addition, thank you to the TRHT ʻOhana for filling my mind with iii compassion, hope, and a neW sense of comMunity. To all the teachers who taught me lessons that fell far outside the scope of required classes but that have been integral to my personal and professional development, thank you so very much. I am also fortunate to have aMazing friends Who have lifted me up and inspired me. I have watched theM become partners, parents, professionals, and most iMportantly, beautiful people, and that has been such a gift. To my best friend of all – Spencer Bates – thank you for filling our home and my life With levity, love, and delicious food. I know this has been a long road for you as well, so thank you for your patience. And to my faMily – you are the reason for all that I do. You have alWays been my biggest fans, defenders, confidants, sounding boards, inspiration, Motivation, and source of joy. There are no sufficient words to express my gratitude. This research and my tiMe in school was funded by the following sources: National Science Foundation Graduate Research Fellowship PrograM (Grant #: 1329626); Hawaiʻi Sea Grant; the UH Mānoa Marine Biology Graduate PrograM (SMall Grants AWard & AchieveMent Scholarship); the UH Mānoa Ecology, Evolution, and Conservation Biology prograM (YoshiMoto Fellowship); the HaWaiʻi Institute of Marine Biology (Lord Scholarship & Castro Scholarship); and the AMerican Museum of Natural History (Lerner-Gray MeMorial Fund). iv ABSTRACT Herbivorous fishes are critical to the function and resilience of coral reefs, but their diets and functional roles can show great variability, even aMong closely related taxa. I assessed the diet specialization of herbivorous reef fishes at multiple scales ranging from an exaMination of diet variation on an individual scale to a Pacific wide analysis of functional homogenization in herbivore asseMblages. Using a Molecular metabarcoding approach, I first identified the algal diets of tWo comMon HaWaiian surgeonfishes, Acanthurus triostegus and A. nigrofuscus, which consume large aMounts of turf algae. Because turf algae are difficult to identify visually, especially in the field, our understanding of the true diet breadth of these species has been limited. A. nigrofuscus exhibited greater diet diversity, more variability betWeen individuals, and less variation betWeen sites than A. triostegus. I then used this saMe metabarcoding approach to exaMine the diets of eight other herbivores and conducted a systeMatic literature revieW of studies exaMining herbivorous reef fish diets. I combined these data to generate a standardized index of diet diversity for herbivorous reef fishes, which indicated that parrotfishes and detritivorous surgeonfishes have more liMited diets, but there is also a range of specialization Within each functional group and taxonomic faMily. I combined the index of diet diversity with fish abundance and trait data to exaMine functional homogenization in herbivore asseMblages throughout the Pacific. Using statistical models, I exaMined the direct and indirect effects of a suite of ecological, biophysical, and anthropogenic drivers on herbivores. Differences in herbivore asseMblage composition betWeen islands, regions, and human population densities Were apparent, but local and indirect effects drive variability in the relationship. This work will assist in reevaluating the functional role of herbivores to guide effective manageMent by exaMining herbivore specialization at scales ranging froM an individual to an asseMblage. v TABLE OF CONTENTS AcknowledgeMents ........................................................................................................................ iii Abstract ........................................................................................................................................... v List of Tables ................................................................................................................................. ix List of Figures ................................................................................................................................. x Chapter 1: Introduction ................................................................................................................... 1 Chapter 2: Metabarcoding as a tool to exaMine cryptic algae in the diets of tWo comMon grazing surgeonfishes, Acanthurus triostegus and A. nigrofuscus ............................................................. 4 Abstract ................................................................................................................................... 4 Introduction ............................................................................................................................. 4 Methods ................................................................................................................................... 6 Results ................................................................................................................................... 10 Discussion ............................................................................................................................. 13 Conclusions ........................................................................................................................... 14 AcknowledgeMents ............................................................................................................... 15 Tables .................................................................................................................................... 16 Figures ................................................................................................................................... 18 Chapter 3: Picky eater or generalist feeder? Comparing diet diversity of herbivorous coral reef fishes in the Pacific ...................................................................................................................... 23 Abstract ................................................................................................................................
Load more

Recommended publications
  • Cip Generation Project 2016 Community Benefits Program Reef Fish Monitoring Project Year 9 Results
    CIP GENERATION PROJECT 2016 COMMUNITY BENEFITS PROGRAM REEF FISH MONITORING PROJECT YEAR 9 RESULTS Prepared For: Environmental Department Hawaiian Electric P.O. Box 2750 Honolulu, Hawaii 96840-0001 Prepared By: Richard Brock, Ph.D. Environmental Assessment, LLC 1232 Lunalilo Home Road Honolulu, Hawaii 96825 EA,LLC Report No. 2017-07 March 2017 EXECUTIVE SUMMARY The development of an electrical generating facility at Campbell Industrial Park (CIP) Barbers Point was the impetus to initiate a quarterly environmental monitoring program to follow changes, if any, in coral reef fish communities in the Barbers Point - Kahe Point area. This document is the ninth annual report for this effort covering the period from December 2007 through December 2016 with a focus on the surveys completed in 2016. On a quarterly basis, this study monitors the status of coral reef fish communities at sixteen permanently marked sites offshore of Barbers Point on the southeast to Nanakuli Beach Park about 7.9 km to the northwest. These 16 monitoring stations are in waters from 5 to 12 m in depth and thus are subject to impact from high surf events. Survey work in 2016 was hampered by inclement weather. The 2016 surveys were completed on 15 April (1st quarter), 5 July (2nd quarter) and 18 August (3rd quarter). The first and fourth quarter work could not be completed in a timely fashion due to poor weather conditions due to the protracted El Nino event that created a record number of major storms (15 in all) and generating prolonged high surf events as they passed by the Hawaiian Islands in 2015.
    [Show full text]
  • Field Guide to the Nonindigenous Marine Fishes of Florida
    Field Guide to the Nonindigenous Marine Fishes of Florida Schofield, P. J., J. A. Morris, Jr. and L. Akins Mention of trade names or commercial products does not constitute endorsement or recommendation for their use by the United States goverment. Pamela J. Schofield, Ph.D. U.S. Geological Survey Florida Integrated Science Center 7920 NW 71st Street Gainesville, FL 32653 [email protected] James A. Morris, Jr., Ph.D. National Oceanic and Atmospheric Administration National Ocean Service National Centers for Coastal Ocean Science Center for Coastal Fisheries and Habitat Research 101 Pivers Island Road Beaufort, NC 28516 [email protected] Lad Akins Reef Environmental Education Foundation (REEF) 98300 Overseas Highway Key Largo, FL 33037 [email protected] Suggested Citation: Schofield, P. J., J. A. Morris, Jr. and L. Akins. 2009. Field Guide to Nonindigenous Marine Fishes of Florida. NOAA Technical Memorandum NOS NCCOS 92. Field Guide to Nonindigenous Marine Fishes of Florida Pamela J. Schofield, Ph.D. James A. Morris, Jr., Ph.D. Lad Akins NOAA, National Ocean Service National Centers for Coastal Ocean Science NOAA Technical Memorandum NOS NCCOS 92. September 2009 United States Department of National Oceanic and National Ocean Service Commerce Atmospheric Administration Gary F. Locke Jane Lubchenco John H. Dunnigan Secretary Administrator Assistant Administrator Table of Contents Introduction ................................................................................................ i Methods .....................................................................................................ii
    [Show full text]
  • Capture, Identification and Culture Techniques of Coral Reef Fish Larvae
    COMPONENT 2A - Project 2A1 PCC development February 2009 TRAINING COURSE REPORT CCapture,apture, iidentidentifi ccationation aandnd ccultureulture ttechniquesechniques ooff ccoraloral rreefeef fi sshh llarvaearvae ((FrenchFrench PPolynesia)olynesia) AAuthor:uthor: VViliameiliame PitaPita WaqalevuWaqalevu Photo credit: Eric CLUA The CRISP Coordinating Unit (CCU) was integrated into the Secretariat of the Pacifi c Community in April 2008 to insure maximum coordination and synergy in work relating to coral reef management in the region. The CRISP programme is implemented as part of the policy developed by the Secretariat of the Pacifi c Regional Environment Programme for a contribution to conservation and sustainable development of coral reefs in the Pacifi c he Initiative for the Protection and Management The CRISP Programme comprises three major compo- T of Coral Reefs in the Pacifi c (CRISP), sponsored nents, which are: by France and prepared by the French Development Agency (AFD) as part of an inter-ministerial project Component 1A: Integrated Coastal Management and from 2002 onwards, aims to develop a vision for the Watershed Management future of these unique ecosystems and the communi- - 1A1: Marine biodiversity conservation planning ties that depend on them and to introduce strategies - 1A2: Marine Protected Areas and projects to conserve their biodiversity, while de- - 1A3: Institutional strengthening and networking veloping the economic and environmental services - 1A4: Integrated coastal reef zone and watershed that they provide both locally and globally. Also, it is management designed as a factor for integration between deve- Component 2: Development of Coral Ecosystems loped countries (Australia, New Zealand, Japan and - 2A: Knowledge, benefi cial use and management USA), French overseas territories and Pacifi c Island de- of coral ecosytems veloping countries.
    [Show full text]
  • Estuarine Fish Diversity of Tamil Nadu, India
    Indian Journal of Geo Marine Sciences Vol. 46 (10), October 2017, pp. 1968-1985 Estuarine fish diversity of Tamil Nadu, India H.S. Mogalekar*, J. Canciyal#, P. Jawahar, D.S. Patadiya, C. Sudhan, P. Pavinkumar, Prateek, S. Santhoshkumar & A. Subburaj Department of Fisheries Biology and Resource Management, Fisheries College & Research Institute, (Tamil Nadu Fisheries University), Thoothukudi-628 008, India. #ICAR-National Academy of Agricultural Research Management, Rajendranagar, Hyderabad-500 030, Telangana, India. *[E-Mail: [email protected]] Received 04 February 2016 ; revised 10 August 2017 Systematic and updated checklist of estuarine fishes contains 330 species distributed under 205 genera, 95 families, 23 orders and two classes. The most diverse order was perciformes with 175 species, 100 genera and 43 families. The top four families with the highest number of species were gobidae (28 species), carangidae (23 species), engraulidae (15 species) and lutjanidae (14 species). Conservation status of all taxa includes one species as endangered, five species as vulnerable, 14 near threatened, 93 least concern and 16 data deficient. As numbers of commercial, sports, ornamental and cultivable fishes are high, commercial and recreational fishing could be organized. Seed production by selective breeding is recommended for aquaculture practices in estuarine areas of Tamil Nadu. [Keywords: Estuarine fishes, updated checklist, fishery and conservation status, Tamil Nadu] Introduction significant component of coastal ecosystem due to The total estuarine area of Tamil Nadu their immense biodiversity values in aquatic was estimated to be 56000 ha, which accounts ecology. The fish fauna inhabiting the estuarine 3.88 % of the total estuarine area of India 1.
    [Show full text]
  • First Records of the Fish Abudefduf Sexfasciatus (Lacepède, 1801) and Acanthurus Sohal (Forsskål, 1775) in the Mediterranean Sea
    BioInvasions Records (2018) Volume 7, Issue 2: 205–210 Open Access DOI: https://doi.org/10.3391/bir.2018.7.2.14 © 2018 The Author(s). Journal compilation © 2018 REABIC Rapid Communication First records of the fish Abudefduf sexfasciatus (Lacepède, 1801) and Acanthurus sohal (Forsskål, 1775) in the Mediterranean Sea Ioannis Giovos1,*, Giacomo Bernardi2, Georgios Romanidis-Kyriakidis1, Dimitra Marmara1 and Periklis Kleitou1,3 1iSea, Environmental Organization for the Preservation of the Aquatic Ecosystems, Thessaloniki, Greece 2Department of Ecology and Evolutionary Biology, University of California Santa Cruz, Santa Cruz, USA 3Marine and Environmental Research (MER) Lab Ltd., Limassol, Cyprus *Corresponding author E-mail: [email protected] Received: 26 October 2017 / Accepted: 16 January 2018 / Published online: 14 March 2018 Handling editor: Ernesto Azzurro Abstract To date, the Mediterranean Sea has been subjected to numerous non-indigenous species’ introductions raising the attention of scientists, managers, and media. Several introduction pathways contribute to these introduction, including Lessepsian migration via the Suez Canal, accounting for approximately 100 fish species, and intentional or non-intentional aquarium releases, accounting for at least 18 species introductions. In the context of the citizen science project of iSea “Is it alien to you?… Share it”, several citizens are engaged and regularly report observations of alien, rare or unknown marine species. The project aims to monitor the establishment and expansion of alien species in Greece. In this study, we present the first records of two popular high-valued aquarium species, the scissortail sergeant, Abudefduf sexfasciatus and the sohal surgeonfish, Acanthurus sohal, in along the Mediterranean coastline of Greece. The aggressive behaviour of the two species when in captivity, and the absence of records from areas close to the Suez Canal suggest that both observations are the result of aquarium intentional releases, rather than a Lessepsian migration.
    [Show full text]
  • Reproductive Biology of Acanthurus Coeruleus (Bloch & Schneider, 1801) (Perciformes: Acanthuridae) in the North Coast of the State of Pernambuco, Brazil
    Reproductive biology of Acanthurus coeruleus (Bloch & Schneider, 1801) (Perciformes: Acanthuridae) in the north coast of the State of Pernambuco, Brazil RAILMA MARIA VILANOVA QUEIROZ1, MARIANA GOMEZ DO RÊGO2, FABIO HISSA VIEIRA HAZIN1 & PAULO GUILHERME VASCONCELOS DE OLIVEIRA1 1 Universidade Federal Rural de Pernambuco, Departamento de Pesca e Aqüicultura, Av. Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900, Recife, Pernambuco, Brasil. 2 Universidade Federal Rural de Pernambuco, Departamento de Morfologia e Fisiologia Animal, Av. Dom Manoel de Medeiros s/n, Dois Irmãos, 52171-900, Recife, Pernambuco, Brasil. *Corresponding author: [email protected] Abstract. The objective of this work was to determine aspects of reproductive biology of Blue tang surgeonfish, Acanthurus coeruleus. 496 specimens were sampled, between January 2013 and December 2015, out of which, 235 were male and 261 were female. Sexual ratio did not significanlty differ among genders, and a ratio of 1.11 females per 1 male was found. Total length frequency distribution ranged from 14 to 41.7 cm with predominance of females in the 24-32 cm classes and of males in the 26- 32 cm classes. The estimated allometric coefficient (2.7695), suggests that the species presents negative allometric growth. According to the GSI and the gonads histological analysis, the reproductive period of the species occurs from June to January with periods of greater reproductive activity from August. The oocyte diameter-frequency distribution analysis revealed a multimodal distribution, confirming the evidence of multiple spawning and batch fecundity varied from 20000 to 55000 oocytes. Spawning frequency estimates, based on the hydrated oocytes (HO) method indicated that the species spawns once every 3.8 days, while the estimates based on the post-ovulatory follicle (POF) method indicated a spawning every 3.4 days, during a 6-month spawning season lasting from August to January.
    [Show full text]
  • Reef Fishes of the Bird's Head Peninsula, West
    Check List 5(3): 587–628, 2009. ISSN: 1809-127X LISTS OF SPECIES Reef fishes of the Bird’s Head Peninsula, West Papua, Indonesia Gerald R. Allen 1 Mark V. Erdmann 2 1 Department of Aquatic Zoology, Western Australian Museum. Locked Bag 49, Welshpool DC, Perth, Western Australia 6986. E-mail: [email protected] 2 Conservation International Indonesia Marine Program. Jl. Dr. Muwardi No. 17, Renon, Denpasar 80235 Indonesia. Abstract A checklist of shallow (to 60 m depth) reef fishes is provided for the Bird’s Head Peninsula region of West Papua, Indonesia. The area, which occupies the extreme western end of New Guinea, contains the world’s most diverse assemblage of coral reef fishes. The current checklist, which includes both historical records and recent survey results, includes 1,511 species in 451 genera and 111 families. Respective species totals for the three main coral reef areas – Raja Ampat Islands, Fakfak-Kaimana coast, and Cenderawasih Bay – are 1320, 995, and 877. In addition to its extraordinary species diversity, the region exhibits a remarkable level of endemism considering its relatively small area. A total of 26 species in 14 families are currently considered to be confined to the region. Introduction and finally a complex geologic past highlighted The region consisting of eastern Indonesia, East by shifting island arcs, oceanic plate collisions, Timor, Sabah, Philippines, Papua New Guinea, and widely fluctuating sea levels (Polhemus and the Solomon Islands is the global centre of 2007). reef fish diversity (Allen 2008). Approximately 2,460 species or 60 percent of the entire reef fish The Bird’s Head Peninsula and surrounding fauna of the Indo-West Pacific inhabits this waters has attracted the attention of naturalists and region, which is commonly referred to as the scientists ever since it was first visited by Coral Triangle (CT).
    [Show full text]
  • The Role of Threespot Damselfish (Stegastes Planifrons)
    THE ROLE OF THREESPOT DAMSELFISH (STEGASTES PLANIFRONS) AS A KEYSTONE SPECIES IN A BAHAMIAN PATCH REEF A thesis presented to the faculty of the College of Arts and Sciences of Ohio University In partial fulfillment of the requirements for the degree Masters of Science Brooke A. Axline-Minotti August 2003 This thesis entitled THE ROLE OF THREESPOT DAMSELFISH (STEGASTES PLANIFRONS) AS A KEYSTONE SPECIES IN A BAHAMIAN PATCH REEF BY BROOKE A. AXLINE-MINOTTI has been approved for the Program of Environmental Studies and the College of Arts and Sciences by Molly R. Morris Associate Professor of Biological Sciences Leslie A. Flemming Dean, College of Arts and Sciences Axline-Minotti, Brooke A. M.S. August 2003. Environmental Studies The Role of Threespot Damselfish (Stegastes planifrons) as a Keystone Species in a Bahamian Patch Reef. (76 pp.) Director of Thesis: Molly R. Morris Abstract The purpose of this research is to identify the role of the threespot damselfish (Stegastes planifrons) as a keystone species. Measurements from four functional groups (algae, coral, fish, and a combined group of slow and sessile organisms) were made in various territories ranging from zero to three damselfish. Within territories containing damselfish, attack rates from the damselfish were also counted. Measures of both aggressive behavior and density of threespot damselfish were correlated with components of biodiversity in three of the four functional groups, suggesting that damselfish play an important role as a keystone species in this community. While damselfish density and measures of aggression were correlated, in some cases only density was correlated with a functional group, suggesting that damselfish influence their community through mechanisms other than behavior.
    [Show full text]
  • Monitoring Functional Groups of Herbivorous Reef Fishes As Indicators of Coral Reef Resilience a Practical Guide for Coral Reef Managers in the Asia Pacifi C Region
    Monitoring Functional Groups of Herbivorous Reef Fishes as Indicators of Coral Reef Resilience A practical guide for coral reef managers in the Asia Pacifi c Region Alison L. Green and David R. Bellwood IUCN RESILIENCE SCIENCE GROUP WORKING PAPER SERIES - NO 7 IUCN Global Marine Programme Founded in 1958, IUCN (the International Union for the Conservation of Nature) brings together states, government agencies and a diverse range of non-governmental organizations in a unique world partnership: over 100 members in all, spread across some 140 countries. As a Union, IUCN seeks to influence, encourage and assist societies throughout the world to conserve the integrity and diversity of nature and to ensure that any use of natural resources is equitable and ecologically sustainable. The IUCN Global Marine Programme provides vital linkages for the Union and its members to all the IUCN activities that deal with marine issues, including projects and initiatives of the Regional offices and the six IUCN Commissions. The IUCN Global Marine Programme works on issues such as integrated coastal and marine management, fisheries, marine protected areas, large marine ecosystems, coral reefs, marine invasives and protection of high and deep seas. The Nature Conservancy The mission of The Nature Conservancy is to preserve the plants, animals and natural communities that represent the diversity of life on Earth by protecting the lands and waters they need to survive. The Conservancy launched the Global Marine Initiative in 2002 to protect and restore the most resilient examples of ocean and coastal ecosystems in ways that benefit marine life, local communities and economies.
    [Show full text]
  • Hotspots, Extinction Risk and Conservation Priorities of Greater Caribbean and Gulf of Mexico Marine Bony Shorefishes
    Old Dominion University ODU Digital Commons Biological Sciences Theses & Dissertations Biological Sciences Summer 2016 Hotspots, Extinction Risk and Conservation Priorities of Greater Caribbean and Gulf of Mexico Marine Bony Shorefishes Christi Linardich Old Dominion University, [email protected] Follow this and additional works at: https://digitalcommons.odu.edu/biology_etds Part of the Biodiversity Commons, Biology Commons, Environmental Health and Protection Commons, and the Marine Biology Commons Recommended Citation Linardich, Christi. "Hotspots, Extinction Risk and Conservation Priorities of Greater Caribbean and Gulf of Mexico Marine Bony Shorefishes" (2016). Master of Science (MS), Thesis, Biological Sciences, Old Dominion University, DOI: 10.25777/hydh-jp82 https://digitalcommons.odu.edu/biology_etds/13 This Thesis is brought to you for free and open access by the Biological Sciences at ODU Digital Commons. It has been accepted for inclusion in Biological Sciences Theses & Dissertations by an authorized administrator of ODU Digital Commons. For more information, please contact [email protected]. HOTSPOTS, EXTINCTION RISK AND CONSERVATION PRIORITIES OF GREATER CARIBBEAN AND GULF OF MEXICO MARINE BONY SHOREFISHES by Christi Linardich B.A. December 2006, Florida Gulf Coast University A Thesis Submitted to the Faculty of Old Dominion University in Partial Fulfillment of the Requirements for the Degree of MASTER OF SCIENCE BIOLOGY OLD DOMINION UNIVERSITY August 2016 Approved by: Kent E. Carpenter (Advisor) Beth Polidoro (Member) Holly Gaff (Member) ABSTRACT HOTSPOTS, EXTINCTION RISK AND CONSERVATION PRIORITIES OF GREATER CARIBBEAN AND GULF OF MEXICO MARINE BONY SHOREFISHES Christi Linardich Old Dominion University, 2016 Advisor: Dr. Kent E. Carpenter Understanding the status of species is important for allocation of resources to redress biodiversity loss.
    [Show full text]
  • Abstract Book JMIH 2011
    Abstract Book JMIH 2011 Abstracts for the 2011 Joint Meeting of Ichthyologists & Herpetologists AES – American Elasmobranch Society ASIH - American Society of Ichthyologists & Herpetologists HL – Herpetologists’ League NIA – Neotropical Ichthyological Association SSAR – Society for the Study of Amphibians & Reptiles Minneapolis, Minnesota 6-11 July 2011 Edited by Martha L. Crump & Maureen A. Donnelly 0165 Fish Biogeography & Phylogeography, Symphony III, Saturday 9 July 2011 Amanda Ackiss1, Shinta Pardede2, Eric Crandall3, Paul Barber4, Kent Carpenter1 1Old Dominion University, Norfolk, VA, USA, 2Wildlife Conservation Society, Jakarta, Java, Indonesia, 3Fisheries Ecology Division; Southwest Fisheries Science Center, Santa Cruz, CA, USA, 4University of California, Los Angeles, CA, USA Corroborated Phylogeographic Breaks Across the Coral Triangle: Population Structure in the Redbelly Fusilier, Caesio cuning The redbelly yellowtail fusilier, Caesio cuning, has a tropical Indo-West Pacific range that straddles the Coral Triangle, a region of dynamic geological history and the highest marine biodiversity on the planet. Caesio cuning is a reef-associated artisanal fishery, making it an ideal species for assessing regional patterns of gene flow for evidence of speciation mechanisms as well as for regional management purposes. We evaluated the genetic population structure of Caesio cuning using a 382bp segment of the mitochondrial control region amplified from over 620 fish sampled from 33 localities across the Philippines and Indonesia. Phylogeographic
    [Show full text]
  • 5-Review-Fish-Habita
    United Nations UNEP/GEF South China Sea Global Environment Environment Programme Project Facility UNEP/GEF/SCS/RWG-F.8/5 Date: 12th October 2006 Original: English Eighth Meeting of the Regional Working Group for the Fisheries Component of the UNEP/GEF Project: “Reversing Environmental Degradation Trends in the South China Sea and Gulf of Thailand” Bangka Belitung Province, Indonesia 1st - 4th November 2006 INFORMATION COLLATED BY THE FISHERIES AND HABITAT COMPONENTS OF THE SOUTH CHINA SEA PROJECT ON SITES IMPORTANT TO THE LIFE- CYCLES OF SIGNIFICANT FISH SPECIES UNEP/GEF/SCS/RWG-F.8/5 Page 1 IDENTIFICATION OF FISHERIES REFUGIA IN THE GULF OF THAILAND It was discussed at the Sixth Meeting of the Regional Scientific and Technical Committee (RSTC) in December 2006 that the Regional Working Group on Fisheries should take the following two-track approach to the identification of fisheries refugia: 1. Review known spawning areas for pelagic and invertebrate species, with the aim of evaluating these sites as candidate spawning refugia. 2. Evaluate each of the project’s habitat demonstration sites as potential juvenile/pre-recruit refugia for significant demersal species. Rationale for the Two-Track Approach to the Identification of Fisheries Refugia The two main life history events for fished species are reproduction and recruitment. It was noted by the RSTC that both of these events involve movement between areas, and some species, often pelagic fishes, migrate to particular spawning areas. It was also noted that many species also utilise specific coastal habitats such as coral reefs, seagrass, and mangroves as nursery areas. In terms of the effects of fishing, most populations of fished species are particularly vulnerable to the impacts of high levels of fishing effort in areas and at times where there are high abundances of (a) stock in spawning condition, (b) juveniles and pre-recruits, or (c) pre-recruits migrating to fishing grounds.
    [Show full text]