Results 91 to 100 of about 38,423 (309)
Effects of some environmental factors on the fecundity of Tilapia species (Family Cichlidae) in Kigera Reservoir, New Bussa [PDF]
, 2005 The effects of some environmental factors on the fecundity of Tilapia species (Family Cichilidae) was carried out at the Kigera dam. Four Tilapia species caught were Tilapia zilli, Hemichromis fasciatus, Sarotherodon galilaeus and Oreochromis niloticus ...
Issa, E.A., Olufeagba, S.O., Raji, A.
core
Island time and the interplay between ecology and evolution in species diversification. [PDF]
, 2015 Research on the dynamics of biodiversity has progressed tremendously over recent years, although in two separate directions - ecological, to determine change over space at a given time, and evolutionary, to understand change over time.
Gillespie, Rosemary G
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Conservation Biology, EarlyView.Abstract Forest cover is positively associated with fish biomass and fisheries yield in the Amazon River floodplain, and many species enter flooded forests to feed, spawn, or seek refuge from predation. Floating macrophyte beds, known as floating meadows, in Amazon floodplains support high fish diversity and serve as nursery habitat for many fishes of ...
Sam Grinstead +6 more
wiley +1 more source
Brazilian Journal of BiologyThe discus fish (Symphysodon spp.) is an Amazonian cichlid species with great appeal in the ornamental fish market due to its characteristic shape, coloration, and behavior. This study aims to conduct a narrative review of the discus fish.
M. W. S. Ribeiro +4 more
doaj +1 more source
Land Cover, Land Use, and Climate Change Impacts on Endemic Cichlid Habitats in Northern Tanzania
Remote Sensing, 2017 Freshwater ecosystems are among the most threatened on Earth, facing environmental and anthropogenic pressures often surpassing their terrestrial counterparts. Land use and land cover change (LUCC) such as degradation and fragmentation of the terrestrial
Margaret Kalacska +3 more
doaj +1 more source
Evolution &Development, EarlyView.By performing a genetic association study in cave × surface fish F2 hybrids, we discovered that premaxilla width, dentary length, and maxillary length are all significantly associated with a region on Chromosome 13 containing 109 genes. ABSTRACT The regulation of bone size is a poorly understood and complex developmental process.
Amanda K. Powers +7 more
wiley +1 more source
Field Guide to Nonindigenous Marine Fishes of Florida [PDF]
, 2009 The purpose of this field guide is to provide information on nonindigenous (i.e., non-native) fishes that have been observed in Florida’s marine waters. Introductions of non-native marine fishes into Florida’s waters could be intentional or unintentional,
Akins, Lad +2 more
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RORS: Enhanced Rule-based OWL Reasoning on Spark
, 2016 The rule-based OWL reasoning is to compute the deductive closure of an ontology by applying RDF/RDFS and OWL entailment rules. The performance of the rule-based OWL reasoning is often sensitive to the rule execution order.
Feng, Zhiyong +4 more
core +1 more source
Journal of Biogeography, EarlyView.ABSTRACT Aim The role of historical drainage connectivity and the influence of water level fluctuations in African lakes on the evolution and distribution of macroinvertebrates remain poorly understood. This is partly because evolutionary biology research has largely focused on mobile vertebrates, such as cichlids.
Marie Claire Dusabe +6 more
wiley +1 more source
Uniciencia, 1992 Se investigó el efecto del cultivo en alta densidad sobre la tasa de crecimiento de juveniles de guapote tigre. Mientras que la tasa de crecimiento promedio disminuye con la densidad, el crecimiento de los peces más grandes no resultó afectado. Con altas
Jorge Günther Nonell +1 more
doaj