Results 51 to 60 of about 17,678 (274)
This study evaluated the apparent protein and energy digestibility of common feed ingredients (soybean meal, fish meal, wheat meal and corn) by juvenile oscars using two different sampling intervals (30 min. and 12h).
Thiago Matias Torres do Nascimento+4 more
doaj +1 more source
Mapping epigenetic divergence in the massive radiation of Lake Malawi cichlid fishes
Epigenetic variation modulates gene expression and can be heritable. However, knowledge of the contribution of epigenetic divergence to adaptive diversification in nature remains limited.
G. Vernaz+9 more
semanticscholar +1 more source
Adaptive radiation of cichlid fish [PDF]
I thank Karen Carleton and Martin Genner for helpful comments on an earlier version of the manuscript and Ad Konings for providing the photomontage.
openaire +3 more sources
The Midas cichlid species complex: incipient sympatric speciation in Nicaraguan cichlid fishes? [PDF]
AbstractSympatric speciation is a contentious concept, although theoretical models as well as empirical evidence support its relevance in evolutionary biology. The Midas cichlid species complex (Amphilophus citrinellus,labiatus,zaliosus) from several crater lakes in Nicaragua fits several of the key characteristics of a sympatric speciation model.
Barluenga, Marta, Meyer, Axel
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Coptodon walteri Thys van den Audenaerde 1968, an endemic cichlid of Ivory Coast and Liberia, is assessed as Near Threatened due to fishing pressure and loss of habitats, and aquatic pollution as a result of extensive clandestine gold mining in the bed ...
Konan Felix Koffi+4 more
doaj +1 more source
Gonadotropin-releasing hormone (GnRH) is a reproductive neuropeptide, which controls vertebrate reproduction. In most vertebrates, there are more than two GnRH orthologs in the brain.
Satoshi Ogawa, Ishwar Parhar
doaj +1 more source
Building and Managing a Tropical Fish Facility: A Do-It-Yourself Guide [PDF]
At the core of most research in zoological disciplines, ranging from developmental biology to genetics to behavioral biology, is the ability to keep animals in captivity. While facilities for traditional model organisms often benefit from well-established designs, construction of a facility for less commonly studied organisms can present a challenge ...
arxiv
Movement of transposable elements contributes to cichlid diversity
African cichlid fishes are a prime model for studying the mechanisms of speciation. Despite the development of extensive genomic resources, it has been difficult to determine which sources of genetic variation are responsible for variation in cichlid ...
K. Carleton+8 more
semanticscholar +1 more source
Evolution: Cichlid Models on the Runaway to Speciation [PDF]
Rapid speciation has fascinated biologists for a long time. A recent study shows that ecological opportunity and sex-biased color differences increase the likelihood of speciation in African cichlid fishes.
Gante, Hugo F., Salzburger, Walter
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Microtomographic investigation of a large corpus of cichlids
AbstractA large collection of cichlids (N=133) from Lake Victoria in Africa spanning a length range of 6 to 18 cm was nondestructively imaged using micro-computed tomography. We describe our method to efficiently obtain three-dimensional tomographic datasets of the oral and pharyngeal jaws and the whole skull of these fishes for accurately describing ...
David Haberthür+5 more
openaire +5 more sources