Effects of the Hol Chan Marine Reserve (Belize) on Associated Coral Reef Finfish Populations Pamela Barrick Baker University of Rhode Island
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University of Rhode Island DigitalCommons@URI Theses and Major Papers Marine Affairs 1992 Effects of the Hol Chan Marine Reserve (Belize) on Associated Coral Reef Finfish Populations Pamela Barrick Baker University of Rhode Island Follow this and additional works at: http://digitalcommons.uri.edu/ma_etds Part of the Aquaculture and Fisheries Commons, and the Oceanography and Atmospheric Sciences and Meteorology Commons Recommended Citation Baker, Pamela Barrick, "Effects of the Hol Chan Marine Reserve (Belize) on Associated Coral Reef Finfish Populations" (1992). Theses and Major Papers. Paper 278. This Thesis is brought to you for free and open access by the Marine Affairs at DigitalCommons@URI. It has been accepted for inclusion in Theses and Major Papers by an authorized administrator of DigitalCommons@URI. For more information, please contact [email protected]. EFFECTS OF THE HOl CHAN MARINE RESERVE (BELIZE) ON ASSOCIATED CORAL REEF FINFISH POPULATIONS BY PAMELA BARRICK BAKER A THESIS SUBMITTED IN PARTIAL FULFillMENT OF THE REQUIREMENTS FOR THE DEGREE OF MASTER OF ARTS IN MARINE AFFAIRS UNIVERSITY OF RHODE ISLAND 1992 MASTER OF ARTS THESIS OF PAMELA BARRICK BAKER APPROVED: Thesis Committee Major Professor " /~h/~ DEAN OF THE GRADUATE SCHOOL UNIVERSITY OF RHODE ISLAND 1992 ABSTRACT People throughout the Caribbean depend on fishery resources for subsistence and income. Overfishing is a concern in many areas and the need for resource management is apparent. Coral reef protected areas are being used to maintain sustainable tropical reef fisheries. This research examined the effectiveness of the Hoi Chan Marine Reserve (HCMRl, Belize, in meeting fisheries management objectives. Fishes were surveyed within the HCMR and in a comparable non-protected site to examine changes in fish community structure over time in the HCMR and between protected and non-protected sites. Results show that abundance, mean length, biomass, and species richness of commercially important species are generally greater in the HCMR in 1991 than in 1988 and greater in the HCMR than in the non-protected site. Local tourist guides were surveyed to determine if the expanding tourist industry is providing alternative employment for fishers, thus alleviating fishing pressure. Results indicate that some previously full time fishers are earning substantial income from tourist activities. This thesis begins with an Introduction detailing the purpose and importance of the study. Chapter II provides a review of literature describing scientific and theoretical basis for establishment of coral reef protected areas to protect fishery resources and the role in the tourist industry. Chapter III summarizes the need for and management structure of the HCMR. Chapter IV describes study sites and research methods used. Results of the study and a discussion is presented in Chapter V. The thesis closes with conclusions and recommendations in Chapter VI. 11 ACKNOWLEDGMENTS I thank the staff of the Hoi Chan Marine Reserve. James Azueta, Manager, provided guidance during my two years as a Peace Corps Volunteer in Belize and during the completion of the study in 1991. Special thanks go to Elgar Badillo, Ranger, for providing transportation and information on local fisheries, and to Melanie Dotherow, Peace Corps Volunteer. The staff of the HCMR kindly allowed me to use their equipment and boat making the research possible. Mr. Vincent Gillett and Ms. Janet Gibson of the Belize Fisheries Unit deserve thanks as their efforts are responsible for establishing Belize as a leader in coral reef conservation and management efforts. I am also grateful to those tourist guides in Belize who participated in my questionnaire. I would like to thank those at the the University of Rhode Island, especially my thesis committee, Dr. Gerald Krausse, Dr. Conrad Recksiek, Dr. Howard Winn, and committee chairman Dr. Thomas Grigalunas. Dr. Krausse was instrumental in helping coordinate this project while I was in Washington, D. C. Dr. Recksiek was kind enough to provide me with some hard to find literature which was essential to this thesis. Writing and completing this thesis while working out of town was possible because of their flexibility and timeliness in reviewing the many chapters. Finally, I thank my family and friends. My husband, Douglas Baker deserves a special thanks for assisti ng in all phases of this study from collection offield data to editing. I could not have done it without him. Thank you all. 111 PREFACE This thesis is based on two years of research conducted while I was a Peace Corps Volunteer in Belize between 1987 and 1989 and on research conducted in the summer of 1991. Primary research was conducted in the Hoi Chan Marine Reserve and neighboring reef areas off Ambergris Cay, Belize, with a permit from the Belize Fisheries Unit. The thesis follows the standard format described in the University of Rhode Island "Format Guidelines--Thesis and Dissertation." IV TABLE OF CONTENTS ABSTRACT. .................................................... ii ACKNOWlEDGEMENTS....................................... iii PREFACE. ................. .. ............. .. ........... .. ...... iv TABLE OF CONTENTS. ........................................ v LIST OF FIGURES. ............................................ vii LIST OF TABLES. viii CHAPTER I INTRODUCTION. ............................. 1 Problem Statement. .......................... 1 Purpose and Significance. .................. 2 Operational Definitions. ..................... 3 CHAPTER II CORAL REEF PROTECTED AREAS. 5 Managing Coral Reef Protected Areas................................... 5 Role in Fisheries Management. ............. 8 IMPACTS OF FISHING ~ . 9 Case Studies of Coral Reef Protected Areas. .................................. 11 GREAT BARRIER REEF MARINE PARK. .... 11 LOOE KEY NATIONAL MARINE SANCTUARY. ..................... 14 PHILIPPINES. ........................... 17 KENYA.................................. 20 Providing Alternatives to Fishing. ........... 22 Summary..................................... 24 CHAPTER III HOl CHAN MARINE RESERVE. ............. 25 Establishment. ............................... 25 Management Plan. ........................... 28 Summary...... 28 CHAPTER IV STUDY SITES AND RESEARCH METHODS 33 Study Sites. ................................. 33 Research Methods. .......................... 36 ASSESSING FISH COMMUNITY STRUCTURE. ..................... 36 TOURIST GUIDE QUESTIONNAIRE. ....... 41 CHAPTER V RESULTS AND DISCUSSION. .............. 43 Assessment of Fish Community Structure. .............................. 43 HOl CHAN MARINE RESERVE. ........... 43 TRES COCOS. .......................... 50 v HOL CHAN MARINE RESERVE VERSUS TRES COCOS. ........... 51 Assessment of the Role of Tourism. ......... 60 CHAPTER VI CONCLUSIONS AND RECOMMENDATIONS. .................... 64 APPENDIX GLOSSARY. .. ... .. .. .. .. .. .. .. ... .. .. .... 68 APPENDIX II SPECIES OF FISHES COMMONLY HARVESTED OFF AMBERGRIS CAY. ..... .. 69 APPENDIX III TOURIST GUIDE QUESTIONNAIRE. ......... 71 BIBUOGRAPHY... .. 73 vi LIST OF FIGURES Figure Page 1. Principle Steps in the Design of a Coral Reef Protected Area.. 8 2. Map of Belize Showing Ambergris Cay . 26 3. Map of Ambergris Cay Showing HCMR and Tres Cocos . 30 4. Coral Reef Habitats . 34 VII LIST OF TABLES Table Page 1. Management Objective for Coral Reef Protected Areas... 5 2. Impacts of Commercial and Recreational Activities on Coral Reefs. .......... .. ............................ .. 7 3. Selected Coral Reef Protected Areas and Their Associated Zones. ............................................ 13 4. Hoi Chan Marine Reserves Goals and Objectives. ........... 29 5. Hoi Chan Marine Reserve Zoning Regulations. .............. 31 6. Dates of Collection of Underwater Visual Censuses. ......... 37 7. HCMR Zone A Results Comparing 1988/89 and 1991. ........ 44 8. HCMR Reef Cut Results Comparing 1988/89 and 1991. ...... 46 9. HCMR Forereef Results Comparing 1988/89 and 1991. ....... 47 10. HCMR Main Reef Results Comparing 1988/89 and 1991. ..... 48 11. Tres Cocos Results Comparing 1988/89 and 1991. ........... 52 12. HCMR and Tres Cocos 1988/89 Comparison. ................ 54 13. HCMR and Tres Cocos 1991 Comparison. ................... 55 14. Reef Cuts 1991. Results Comparing HCMR and Tres Cocos. .. 57 15. Forereefs 1991. Results Comparing HCMR and Tres Cocos. .. 58 16. Main Reefs 1991. Results Comparing HCMR and Tres Cocos. .. 59 vi ii CHAPTER INTRODUCTION Problem Statement Indications of overlishing on coral reefs are evident worldwide resulting from use of highly efficient fishing gear, destructive fishing methods, and intense fishing pressure (Plan Development Team (PDT) 1990, Samoilys 1988, Salm and Clark 1984). Impacts include reduced landings, decreased catch per unit effort, and harvests being comprised of smaller sized individuals and of less desirable species (Polovina and Ralston 1987, Munro 1980). Because tropical coastal and island inhabitants in developing nations often depend on reef fisheries for sustenance, overlishing in these areas is a serious concern (White 1986, Castaneda and Miclat 1981). Coral reef protected areas (CRPAs) are being used to maintain reef fisheries in overlished areas. Hundreds of CRPAs exist throughout the world although many have no administrative or financial support (Van't Hof 1990, Salm and Clark 1984). The value of CRPAs for maintaining fisheries is not seriously doubted (Alcala and Russ 1990; PDT 1990; Russ and Alcala 1989; White 1986,