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 Title Page
 Acknowledgement
 Table of Contents
 List of Tables
 List of Figures
 Abstract
 Kemp's ridley turtle conservation...
 Activity patterns of Kemp's ridley...
 Habitat associations of Kemp's...
 Summary
 Bibliography
 Biographical sketch






Group Title: Activity patterns and habitat associations of Kemp's ridley turtles, Lepidochelys kempi, in the coastal waters of the Cedar Keys, Florida /
Title: Activity patterns and habitat associations of Kemp's ridley turtles, Lepidochelys kempi, in the coastal waters of the Cedar Keys, Florida
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Permanent Link: http://ufdc.ufl.edu/UF00100722/00001
 Material Information
Title: Activity patterns and habitat associations of Kemp's ridley turtles, Lepidochelys kempi, in the coastal waters of the Cedar Keys, Florida
Physical Description: xiii, 184 leaves : ill. (some col.), maps ; 29 cm.
Language: English
Creator: Schmid, Jeffrey Robert, 1964- ( Dissertant )
Percival, Henry F. ( Thesis advisor )
Lindberg, William ( Reviewer )
Zwick, Paul ( Reviewer )
Publisher: University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: 2000
Copyright Date: 2000
 Subjects
Subjects / Keywords: Research   ( mesh )
Veterinary Medicine   ( mesh )
Wildlife Ecology and Conservation thesis, Ph. D
Turtles -- Florida   ( mesh )
Environment -- Florida   ( mesh )
Ecosystem -- Florida   ( mesh )
Marine Biology -- Florida   ( mesh )
Dissertations, Academic -- Wildlife Ecology and Conservation -- UF
Genre: bibliography   ( marcgt )
theses   ( marcgt )
non-fiction   ( marcgt )
 Notes
Abstract: Radio and sonic telemetry were used to investigate the site fidelity, tidal orientation, rate of movement (ROM), respiratory behavior, and habitat associations of Kemp's ridley turtles, Lepidochelys kempi. Nine turtles were tracked east of the Cedar Keys, Florida, for up to 70 days after release and occupied 5 - 30 km2 foraging ranges. The mean of mean turtle bearings on incoming (48+/-49 degrees) and falling (232+/-41 degrees) tides were significantly oriented to the mean directions of tidal flow (37+/-9 degrees, p<0.0025, and 234+/-9 degrees, p<0.005, respectively). Turtles had a mean ROM of 0.44+/-0.33 km/hr (range: 0.004 - 1.758 km/hr), a mean surface duration of 18+/-15 seconds (range: 1 - 88 seconds), and a mean submergence duration of 8.4+/-6.4 minutes (range: 0.2 - 60.0 minutes). ROM was negatively correlated with surface and submergence durations and positively correlated with the number of surfacings. Furthermore, ROMs were higher and surface and submergence durations were shorter during the day. Habitat associations of Kemp's ridley turtles were analyzed in terms of availability, utilization, and preference using compositional analyses. Forty-eight percent of the study area consisted of sand bottom, but over half of the sand sites had rock outcroppings. Seagrasses comprised 16% of the available habitat, green macroalgae comprised 12%, live bottom and red macroalgae each comprised 7%, and the Corrigan Reef oyster bars comprised < 2%. Six of the turtles utilized unvegetated sand and rock bottom surrounding Corrigan Reef (65 - 78% of foraging ranges and 64 - 82% of locations), and three turtles utilized the vegetated southern region (37 - 64% of foraging ranges and 31 - 57% of locations). Compositional analyses indicated that turtles used rock outcroppings in their foraging ranges at a significantly higher proportion than available within the study area. Additionally, live bottom and green macroalgae were utilized significantly more than seagrasses. Water depth ranged from intertidal oyster reefs to depths > 3 m, but turtles preferred 1-3 m depths within their foraging ranges. Daily activities of turtles were attributed to food acquisition and bioenergetics, while their habitat associations may be correlated to habitat structure, prey availability, competition, and developmental stage.
Subject: Kemp's ridley turtle, telemetry, activity patterns, habitat preference
Thesis: Thesis (Ph. D.)--University of Florida, 2000.
Bibliography: Includes bibliographical references (leaves 144-163).
Additional Physical Form: Also available on the World Wide Web; PDF reader required.
Statement of Responsibility: by Jeffrey R. Schmid.
General Note: Printout.
General Note: Vita.
 Record Information
Bibliographic ID: UF00100722
Volume ID: VID00001
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 45840299
alephbibnum - 002566154
notis - AMT2435

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Table of Contents
    Title Page
        Page i
    Acknowledgement
        Page ii
        Page iii
    Table of Contents
        Page iv
        Page v
        Page vi
    List of Tables
        Page vii
        Page viii
        Page ix
    List of Figures
        Page x
        Page xi
    Abstract
        Page xii
        Page xiii
    Kemp's ridley turtle conservation and research
        Page 1
        Page 2
        Page 3
        Page 4
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    Activity patterns of Kemp's ridley turtles
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    Habitat associations of Kemp's ridley turtles
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    Summary
        Page 138
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    Bibliography
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    Biographical sketch
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