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Fish Population Studies of the Seagrass Beds and Coral Reefs of Cayo Berberia and Cayo Ratones, Ponce, P.R

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Fish Population Studies of the Seagrass Beds and Coral Reefs of Cayo Berberia and Cayo Ratones, Ponce, P.R
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  Converted to digital format by Aric Bickel (NOAA/RSMAS) in 2005. Copy available at the NOAA Miami Regional Library. Minor editorial changes may have been made.   Fish Population Studies of the Seagrass Beds and Coral Reefs of Cayo Berberia and Cayo Ratones, Ponce, P.R. Jose M. Berrios, Jaime K. Gonzalez Azar, Israel Diaz Rodriguez Department of Natural Resources Scientific Research Area Marine Resources Division    DEPARTMENT OF NATURAL RESOURCES SCIENTIFIC RESEARCH AREA  MARINE RESOURCES ZIVISION FISH POPULATION STUDIES OF THE SEAGRASS BEDS AND CORAL REEFS OF CAYO BERBERIA AND CAYO RATONES, PONCE, P.R. JOSE M. BY BERRIOS DIAZ JAIME K. GONZALEZ AZAR ISRAEL DIAZ RODRIGUEZ  Table of contents  page  Acknowledgements .......................................................3 Li st   of Figures ........................................................ 4 Li st   of Tables ......................................................... 4 List of Plates .........................................................5  Abstract ................................................................ 6 Introduction ...........................................................8 Materials and Methods ................................................10 Results ................................................................15 Coral Reef Fishes ..............................................15 General Description and Species Distribution ........15 Species Richness ..........................................16 Number of Individuals ....................................17 Density ....................................................18 Species Diversity ........................................18 Similarity .................................................19 Abundance ..................................................19 Dominant Species ..........................................20 Fishes of the Thalassia Beds and Mangroves ................21 General Description ......................................21 Discussion .............................................................22 Coral Reef Fishes ..............................................22 Fishes of the Thalassia and Mangrove Areas ................ 25 Conclusions ............................................................26 Recommendations .......................................................28 Literature Cited ......................................................30 Fig ures ................................................................ 35 T ables ..................................................................39 Plates .................................................................. 46 Appendix 1 .............................................................55 - 2 -  Acknowledgements First we want to express thanks to Julio Cardona and Jorge Moreno for  providing critical review and comments, for their statistical support and for their invaluable suggestions for improving the manuscript. We are deeply indebted to Richard Webb for his invaluable assistance with computer programming and for stimulating discussions and cooperation. Thanks are especially due to Miguel Canals and Howard Ferrer for critically reading the manuscript and for their extensive field assistance. Hector Merced is gratefully acknowledged for developing and .  printing the photographs and for an occasional extra hand in the field. We want to acknowledge the crew of the R/\' Jean A, the D.N.R. rangers of Ponce and Boqueron and the Brigada of Caja de Muertos Island for their logistical support during the field work. A short conversation with Dr. Jim Bohnsack was very useful for improving the presentation of the data. Margarita Fonseca and Norma Vergara typed different parts of the manuscript. Other persons which assisted us at different stages of the study were Iris Corujo, Emilia Medina, Aileen Velazco, Luz M. Cruz, Jorge Rodriguez, Antonio Rios, Gerardo Ortiz and JoAnn Mercado and we are indebted to them. Unless otherwise indicated all the photographs were taken by Jose M. Berrios. Any errors or omissions are the authors '  responsibility. Funding for this project was provided by the Federal Aid to Fish Restoration Act, Dingell - Johnson, Project F-5. - 3 -  List of Figures page Figure 1. Cumulative curve of number of species versus transect length from the different reef zones .......35 Figure 2. Data collecting format ....................................36 Figure 3. Ranked frequency of ocurrence in Cayo Berberia ...... 37 Figure 4. Ranked frequency of ocurrence in Cayo Ratones .......38 List of Tables Table 1. Checklist of the fishes present in Berberia and Ratones reefs .................................................39 Table 2. Diversity characteristics of Berberia and Ratones reefs ...........................................................40 Table 3. Mean quantitative and qualitative similarities between and within Berberia and Ratones reefs .........40 Table 4. Species showing significant differences in abundance between the A. palmata and slope zones of Berberia and Ratones reefs ............................................41 Table 5. Ranked dominant species of Berberia and Ratones reefs ...........................................................42 Table 6. Checklist of the species present in the Thalassia and mangroves areas of Cayo Ratones and Cayo Berberia .......................................................43 Table 7. Correlation between sedimentation and the diversity characteristics of Cayo Berberia and Cayo Ratones 44 Table 8. Species showing significant correlation with sedimentation .................................................45 - 4 -
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