Main Title |
Field Observations of the Ecology and Habits of Mangrove Rivulus ('Rivulus marmoratus') in Belize and Florida (Teleostei: Cyprinodontiformes: Rivulidae). |
Author |
Davis, W. P. ;
Taylor, D. S. ;
Turner, B. J. ;
|
CORP Author |
Environmental Research Lab., Gulf Breeze, FL. ;Brevard Mosquito Control District, Titusville, FL. ;Virginia Polytechnic Inst. and State Univ., Blacksburg. Dept. of Biology.;National Science Foundation, Washington, DC.;Smithsonian Institution, Washington, DC. |
Publisher |
c1990 |
Year Published |
1990 |
Report Number |
EPA/600/J-90/371 ;CONTRIB-693; NSF-BSR-8506417; |
Stock Number |
PB91-163840 |
Additional Subjects |
Marine fishes ;
Animal behavior ;
Animal ecology ;
Habitats ;
Coastal waters ;
Florida ;
Reproduction(Biology) ;
Reprints ;
Rivulus marmoratus ;
Belize Barrier Reef
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB91-163840 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
14p |
Abstract |
The report provides a synopsis of field studies of Rivulus marmoratus from two population surveys of mangrove islands adjacent to the Belize barrier reef and observations made over fifteen years at several sites in South Florida. This small, cryptically colored killifish is the only known vertebrate selfing hermaphrodite. Florida populations consist nearly exclusively of hermaphrodites (> 99%), while the Belize populations contained a significant proportion (10-25%) of males. The combined observations demonstrate that this species is not 'rare' as previously thought, but elusive and highly adapted to microhabitats within mangrove forests. Standard ichthyological collecting techniques are ineffective in the habitat and have previously failed to reveal the strength of the association of R. marmoratus with the mangral ecosystem. (Copyright (c) 1990 by Verlog Dr. Frederick Pfeil, Munchen, FRG.) |