Results 31 to 40 of about 38,723 (312)

Convict cichlids benefit from close proximity to another species of cichlid fish [PDF]

open access: greenBiology Letters, 2008
The coexistence of species with overlapping resource use is often thought to involve only negative fitness effects as a consequence of interspecific competition. Furthermore, the scarce empirical research on positive species interactions has predominantly focused on sessile organisms.
Topi K. Lehtonen
openalex   +3 more sources

Dynamics of sex chromosome evolution in a rapid radiation of cichlid fishes

open access: yesbioRxiv, 2020
Sex is a fundamental trait that is determined, depending on the species, by different environmental and/or genetic factors, including various types of sex chromosomes.
Athimed El Taher   +4 more
semanticscholar   +1 more source

Molecular and fossil evidence place the origin of cichlid fishes long after Gondwanan rifting. [PDF]

open access: yes, 2013
Cichlid fishes are a key model system in the study of adaptive radiation, speciation and evolutionary developmental biology. More than 1600 cichlid species inhabit freshwater and marginal marine environments across several southern landmasses.
Alex Dornburg   +9 more
core   +1 more source

Genome-wide protein phylogenies for four African cichlid species

open access: yesBMC Evolutionary Biology, 2018
Background The thousands of species of closely related cichlid fishes in the great lakes of East Africa are a powerful model for understanding speciation and the genetic basis of trait variation.
Ajay Ramakrishnan Varadarajan   +3 more
doaj   +1 more source

How Cichlids Diversify

open access: yesScience, 2012
The extreme diversity of cichlid fishes in East Africa helps to elucidate how and why organisms diversify.
Santos, M. E., Salzburger, W.
openaire   +1 more source

Foraging environment determines the genetic architecture and evolutionary potential of trophic morphology in cichlid fishes [PDF]

open access: yes, 2016
Phenotypic plasticity allows organisms to change their phenotype in response to shifts in the environment. While a central topic in current discussions of evolutionary potential, a comprehensive understanding of the genetic underpinnings of plasticity is
Albertson, R. Craig   +7 more
core   +2 more sources

Modular genetic control of social status in a cichlid fish

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2020
Significance Social rank along a hierarchy determines physiological state and behavioral performance. A ubiquitous feature of social hierarchies is the communication of rank through nonphysical signaling systems (e.g., coloration) and aggression, traits ...
Beau A. Alward   +5 more
semanticscholar   +1 more source

Hybridisation generates a hopeful monster: a hermaphroditic selfing cichlid [PDF]

open access: yes, 2016
Compared to other phylogenetic groups, self-fertilization (selfing) is exceedingly rare in vertebrates and is known to occur only in one small clade of fishes.
Garcia-Alonso, Javier   +3 more
core   +1 more source

Effects of different sampling intervals on apparent protein and energy digestibility of common feed ingredients by juvenile oscar fish (Astronotus ocellatus)=Diferentes intervalos de coleta na determinação da digestibilidade aparente da proteína e da energia de ingredientes comuns para o apaiari (Astronotus ocellatus) [PDF]

open access: yesActa Scientiarum: Animal Sciences, 2012
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).
João Batista Kochenborger Fernandes   +4 more
doaj   +1 more source

Genome editing in East African cichlids and tilapias: state-of-the-art and future directions

open access: yesOpen Biology, 2023
African cichlid fishes of the Cichlidae family are a group of teleosts important for aquaculture and research. A thriving research community is particularly interested in the cichlid radiations of the East African Great Lakes. One key goal is to pinpoint
Bethan Clark   +8 more
doaj   +1 more source

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