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Body Condition of Juvenile Hoplosternum littorale (Hancock, 1828) in Anthropogenic Refuges on the Big Cypress Seminole Indian Reservation during the 2006 Dry Season

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Date Issued:
2007
Summary:
This study investigated variations m body condition of brown hoplos (Hoplosternum littorale) refuging in ponds in the Big Cypress region of southern Florida. During the dry season environmental parameters fluctuated, water depth and dissolved oxygen decreased, while temperature and conductivity increased. Standard lengths and wet weights of 675 juvenile brown hoplos were measured from seven populations. Body condition was compared between populations and through time (early vs. late dry season) using length-weight relationship and Fulton's condition factor. The only significant spatia-temporal variations in body condition occurred in the deepest refuges. One population demonstrated an unexpected positive change in body condition, while another (a deep culvert pond) showed negative changes in body condition over time. Smaller fish (≤S65mmSL) found in these deep-water refuges demonstrated the most change in body condition. Almost all populations exhibited isometric growth but the culvert pond population had variable regression slopes (slopes ≠ 3 for both samples).
Title: Body Condition of Juvenile Hoplosternum littorale (Hancock, 1828) in Anthropogenic Refuges on the Big Cypress Seminole Indian Reservation during the 2006 Dry Season.
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Name(s): Ramdin, Gianna
Baldwin, John D., Thesis advisor
Florida Atlantic University, Degree Grantor
Department of Biological Sciences
Charles E. Schmidt College of Science
Type of Resource: text
Genre: Electronic Thesis Or Dissertation
Date Created: 2007
Date Issued: 2007
Publisher: Florida Atlantic University
Place of Publication: Boca Raton, Fla.
Physical Form: application/pdf
Extent: 80 p.
Language(s): English
Summary: This study investigated variations m body condition of brown hoplos (Hoplosternum littorale) refuging in ponds in the Big Cypress region of southern Florida. During the dry season environmental parameters fluctuated, water depth and dissolved oxygen decreased, while temperature and conductivity increased. Standard lengths and wet weights of 675 juvenile brown hoplos were measured from seven populations. Body condition was compared between populations and through time (early vs. late dry season) using length-weight relationship and Fulton's condition factor. The only significant spatia-temporal variations in body condition occurred in the deepest refuges. One population demonstrated an unexpected positive change in body condition, while another (a deep culvert pond) showed negative changes in body condition over time. Smaller fish (≤S65mmSL) found in these deep-water refuges demonstrated the most change in body condition. Almost all populations exhibited isometric growth but the culvert pond population had variable regression slopes (slopes ≠ 3 for both samples).
Identifier: FA00000817 (IID)
Degree granted: Thesis (M.S.)--Florida Atlantic University, 2007.
Note(s): Charles E. Schmidt College of Science
Subject(s): Seminole Tribe of Florida
Big Cypress Swamp (Fla )--Environmental aspects
Wetland ecology--Florida--Big Cypress Swamp (Fla )
Ecosystem management--Florida--Big Cypress Swamp (Fla)
Held by: Florida Atlantic University Libraries
Sublocation: Digital Library
Persistent Link to This Record: http://purl.flvc.org/fau/fd/FA00000817
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Host Institution: FAU
Is Part of Series: Florida Atlantic University Digital Library Collections.