Ecology of Cichla (Cichlidae) in Two Blackwater Rivers of Southern Venezuela
- K. Winemiller, D. Taphorn, A. Barbarino-Duque
- Environmental Science, Biology
- 9 December 1997
Examination of gonads and sizes of intraovarian oocytes indicated that reproduction by all five populations probably is initiated during the late low water period and may continue into the flooding period.
Fish and aquatic habitat conservation in South America: a continental overview with emphasis on neotropical systems.
- M. Barletta, A. Jaureguizar, M. CorrĂȘa
- Environmental ScienceJournal of Fish Biology
- 1 June 2010
In this review, the main river basins of South America, together with key aquatic habitats (mangrove-fringed estuaries of the tropical humid, tropical semi-arid and subtropical regions) are analysed in terms of their characteristics and main concerns.
Molecular phylogeny of the live-bearing fish genus Poecilia (Cyprinodontiformes: Poeciliidae).
- F. Breden, M. Ptacek, M. Rashed, D. Taphorn, C. Figueiredo
- BiologyMolecular Phylogenetics and Evolution
- 1 July 1999
The complete NADH Dehydrogenase Subunit 2 (ND2) mitochondrial gene is sequenced in representatives of the major divisions of the genus Poecilia in order to examine the phylogenetic relationships within the genus.
Age structure and growth of peacock cichlids from rivers and reservoirs of Venezuela
- D. B. Jepsen, K. Winemiller, D. Taphorn, D. R. Olarte
- Environmental Science
- 1 August 1999
The present results indicate that the annual cycle or tropical wet/dry seasonality promotes reproductive seasonality in Cichla, and populations living in relatively aseasonal reservoir environments may have several spawns per year.
Temporal patterns of resource partitioning among Cichla species in a Venezuelan blackwater river.
- D. B. Jepsen, K. Winemiller, D. Taphorn
- Environmental ScienceJournal of Fish Biology
- 1 December 1997
Together, the three Cichla species consume a wide spectrum of prey from a diverse fish assemblage, but prey are subdivided based on habitat, prey type, and season.
Fish assemblages of the Casiquiare River, a corridor and zoogeographical filter for dispersal between the Orinoco and Amazon basins
- K. Winemiller, H. LĂłpez-FernĂĄndez, D. Taphorn, L. Nico, A. B. Duque
- Environmental Science
- 1 September 2008
Aimâ The aim of this study was to determine whether the Casiquiare River functions as a free dispersal corridor or as a partial barrier (i.e. filter) for the interchange of fish species of theâŠ
Ecology of the coporo, Prochilodus mariae (Characiformes, Prochilodontidae), and status of annual migrations in western Venezuela
- A. B. Duque, D. Taphorn, K. Winemiller
- Environmental ScienceEnvironmental Biology of Fishes
- 1 September 1998
Deforestation, overfishing, pollution, and construction of dams have severely impacted migratory fishes of western Venezuela. The coporo, Prochilodus mariae (Prochilodontidae), has supported theâŠ
Limnology of Andean piedmont rivers of Venezuela
- J. Allan, A. Flecker, S. Segnini, D. Taphorn, Eric R Sokol, G. Kling
- Environmental ScienceJournal of The North American BenthologicalâŠ
- 1 March 2006
Abstract We sampled 6 rivers of the piedmont region of Venezuela during the dry seasons of 1997 and 1998 to compare physical, chemical, and biological features and evaluate the influence of naturalâŠ
Food habits of piranhas in the low llanos of Venezuela
- L. Nico, D. Taphorn
- Environmental Science
- 1 December 1988
Considerable diet overlap among different piranha species in the same size dasses suggests that plentiful food resources are not limiting, and these savanna piranhas do not depend on fruits and seeds as has been reported for Piranhas in flooded tropical rain forests.
Mind the (information) gap: the importance of exploration and discovery for assessing conservation priorities for freshwater fish
- Karen M. Alofs, Elford A. Liverpool, D. Taphorn, Calvin R. Bernard, H. LĂłpez-FernĂĄndez
- Environmental Science
- 1 January 2014
Biodiversity conservation often is aimed at areas of high species richness and endemism. Our understanding of freshwater fish diversity in the Neotropics is biased by lack of exploration withinâŠ
...
...