MINISTRY OF ENVIRONMENT, HONDURAS ACTIVITIES OF THE TURTLE AWARENESS AND PROTECTIVE STUDIES (TAPS) PROGRAM, PROTECTIVE TURTLE ECOLOGY CENTER FOR TRAINING, OUTREACH, AND RESEARCH, INC. (ProTECTOR) IN ROATAN, HONDURAS 2007 – 2008 ANNUAL REPORT JANUARY 15, 2009 ACTIVITIES OF THE TURTLE AWARENESS AND PROTECTION STUDIES (TAPS) PROGRAM UNDER THE PROTECTIVE TURTLE ECOLOGY CENTER FOR TRAINING, OUTREACH, AND RESEARCH, INC (ProTECTOR) IN ROATÁN, HONDURAS ANNUAL REPORT OF THE 2007 – 2008 SEASON Principal Investigator: Stephen G. Dunbar1,2,4 Co-Principal Investigator: Lidia Salinas2,3 Co-Principal Investigator: Melissa D. Berube2,4 1President, Protective Turtle Ecology center for Training, Outreach, and Research, Inc. (ProTECTOR), 2569 Topanga Way, Colton, CA 92324, USA 2 Turtle Awareness and Protection Studies (TAPS) Program, Oak Ridge, Roatán, Honduras 3Country Coordinator, Protective Turtle Ecology center for Training, Outreach, and Research, Inc. (ProTECTOR), Tegucigalpa, Honduras 4Department of Earth and Biological Sciences, Loma Linda University, Loma Linda, CA 92350, USA PREFACE This report represents the ongoing work of the Protective Turtle Ecology center for Training, Outreach, and Research, Inc. (ProTECTOR) in the Bay Islands of Honduras. The report covers activities of ProTECTOR up to and including the 2008 calendar year and is provided in partial fulfillment of the permit agreement provided to ProTECTOR from 2006 to the end of 2008 by the Secretariat for Agriculture and Ranching (SAG). ACKNOWLEDGEMENTS ProTECTOR and TAPS recognize that without the financial and logistical assistance of the “Escuela de Buceo Reef House,” this project would not have been initiated. We thank the owners and staff of that facility for their interest in sea turtle conservation and their invaluable efforts on behalf of the sea turtles of Honduras. We also extend our appreciation to ESRI for their funding support in terms of GIS software and training. We thank Karla Ventura, Edwin Cruz, the staff of PMAIB and Romeo Silvestri for their constant assistance in sharing data and logistical arrangements for the TAPS program. Numerous volunteers have also assisted in the collection of data, including Lyndsey Kelly, David Kirkwood and Leonardo Rodriguez. I thank Joe Breman for his input in planning, data collection, the development of the project database and GIS analyses. For Submission to: The Secretariat for Agriculture and Ranching (SAG), the Ministry of Environment (SERNA), Fisheries (DIGEPESCA), and the Department of Biodiversity (DiBio) August 25, 2009 2 TABLE OF CONTENTS INTRODUCTION AND BACKGROUND ..............................................................................4 Measuring, Weighing, Tagging and Tissue Sampling.........................................................5 Radio Tracking and Home Range Analyses of Hawksbills ................................................6 Hawksbill Prey Species Analyses ..........................................................................................7 Hawksbill Nesting Beach Reconnaissence............................................................................8 Hawksbill Aerial and Dive Monitoring ................................................................................9 Turtle Nesting Hotline Art and Jingle Challenge................................................................9 DETAILED METHODS..........................................................................................................10 Measuring, Weighing, Tagging and Tissue Sampling.......................................................10 Radio Tracking and Home Range Analyses of Hawksbills ..............................................14 Radio Tracking and Home Range Determination..............................................................15 Hawksbill Prey Species Analyses ........................................................................................17 Survey Transects.................................................................................................................17 Statistical Analysis .............................................................................................................18 Hawksbill Nesting Beach Reconnaissence..........................................................................18 Hawksbill Aerial and Dive Monitoring ..............................................................................21 Turtle Nesting Hotline Art and Jingle Challenge..............................................................22 RESULTS..................................................................................................................................26 Measuring, Weighing, Tagging and Tissue Sampling.......................................................26 Growth Rates......................................................................................................................28 Radio Tracking and Home Range Analyses of Hawksbills ..............................................28 Hawksbill Prey Species Analyses ........................................................................................33 Hawksbill Nesting Beach Reconnaissence..........................................................................38 Hawksbill Aerial and Dive Monitoring ..............................................................................41 Turtle Nesting Hotline Art and Jingle Challenge..............................................................45 DISCUSSION............................................................................................................................45 Measuring, Weighing, Tagging and Tissue Sampling.......................................................45 Radio Tracking and Home Range Analyses of Hawksbills ..............................................46 Hawksbill Prey Species Analyses ........................................................................................46 Hawksbill Nesting Beach Reconnaissence..........................................................................48 Hawksbill Aerial and Dive Monitoring ..............................................................................48 Turtle Nesting Hotline Art and Jingle Challenge..............................................................49 RECOMMENDATIONS .........................................................................................................50 LITERATURE CITED............................................................................................................52 APPENDIX IA..........................................................................................................................55 APPENDIX IB ..........................................................................................................................56 APPENDIX IIA ........................................................................................................................57 APPENDIX IIIA (English) ......................................................................................................58 APPENDIX IIIB (Español)......................................................................................................59 3 INTRODUCTION AND BACKGROUND A comprehensive background regarding the current status of hawksbill (Eretmochelys imbricate) and green (Chelonia mydas) sea turtles, and the need for continuing research on their status and plight in Honduran waters, has been provided in a previous report to SAG, SERNA, DIGEPESCA, and DiBio (Dunbar, 2006). That report provided details on methods carried out by the Turtle Awareness and Protection Studies (TAPS) program under interim permits # DGPA/005/2006 and # DGPA/245/2006, and provided preliminary results obtained up to November, 2006. The following is an annual report on the activities of the TAPS program under the ProTECTOR organization carried on between March, 2007 and October, 2008. The TAPS program was officially granted a permit to carry on research on sea turtles of Honduras in March, 2007 by the Secretariat of Agriculture and Ranching (SAG), under permit #DGPA/5428/2007, and subsequently began conducting the research for which the permit had been granted. These studies are the first of their kind to be conducted in Honduras with the aim of tagging and tracking juvenile sea turtles, as well as assessing the health of wild-caught, temporarily-captive sea turtles throughout the area of the Bay Islands. The TAPS program is coordinated out of the “Escuela de Busceo Reef House” (RHR) located on the south-east coast of Roatán in the Bay Islands, Honduras (N16°23'23.34", W086°20'57.43") (Figure 1). In addition to the initial tagging program initiated by ProTECTOR under the Turtle Awareness and Protection Studies (TAPS) program in March, 2007, other projects have been initiated and continue. These projects include an investigation undertaken by Loma Linda University graduate student, Melissa Berube, under supervision by Dr. Stephen G. Dunbar, estimating the size of home ranges for juvenile hawksbills along the southeastern coast of Roatán. This project is also investigating the abundance of hawksbill prey items both within and outside home ranges. Other projects launched under the TAPS program were a hawksbill nesting beach reconnaissance, a sea turtle monitoring program through the dive operators on Roatán, and a Turtle Nesting Hotline Art and Jungle Challenge. 4 Detailed methods, results and discussions for each project are provided in the following report. At the conclusion of the report,