Results 1 to 10 of about 5,527 (118)

Diverse prey capture strategies in teleost larvae [PDF]

open access: yeseLife
Animal behavior is adapted to the sensory environment in which it evolved, while also being constrained by physical limits, evolutionary history, and developmental trajectories. The hunting behavior of larval zebrafish (Danio rerio), a cyprinid native to
Duncan S Mearns   +5 more
doaj   +2 more sources

GROWTH OF Geophagus brasiliensis REARED AT DIFFERENT TEMPERATURES AND FEEDING REGIMES

open access: yesBoletim do Instituto de Pesca, 2021
The aim of this study was to evaluate the growth performance of Geophagus brasiliensis rearedb under distinct temperatures (24.3 ± 0.9, 28.1 ± 1.0, and 31.7 ± 0.8°C) and feeding regimes (apparent satiety and a supply of 4% of the total biomass).
Leone de Souza MEDINA   +3 more
doaj   +1 more source

Salinized water as a strategy for increase stocking density in Heros severus larviculture, an Amazonian ornamental fish

open access: yesBoletim do Instituto de Pesca, 2023
The aim of this study was to evaluate the effect of different salinized water (0, 3 and 6 g L-1) and stocking densities (10, 15 and 20 larvae L-1) in Heros severus larviculture.
Leonnan Carlos Carvalho de Oliveira   +7 more
doaj   +1 more source

Freshwater hydrozoan blooms alter activity and behaviour of territorial cichlids in Lake Tanganyika [PDF]

open access: yesRoyal Society Open Science, 2019
Blooms of gelatinous zooplankton can represent dramatic environmental perturbations for aquatic ecosystems. Yet, we still know little about how blooms impact fitness-related behaviours of fish caught within their areas of effect, especially for ...
Aneesh P. H. Bose   +2 more
doaj   +1 more source

Determination of Artificial Incubation Time of Some Malawi Cichlid Species Incubating in the Mouth (Iodotropheus sprengerae, Cyrtocara moorii, Maylandia estherae, Labidochromis caeruleus) Eggs

open access: yesActa Natura et Scientia, 2020
Malawi cichlid species belonging to the Cichlidae family are among the most popular commercial species in the aquarium industry. Females of this species begin to incubate their eggs in the mouth after ovulation. Professional producers continue to induce
Pınar Çelik, Bahadır Rıfat Yalçın
doaj   +1 more source

The evolution of monogamy in cichlids and marine reef fishes

open access: yesFrontiers in Ecology and Evolution, 2022
Although several hypotheses have been proposed to explain the emergence of social monogamy, its origin is still intensely debated. Monogamy has many potential drivers, but evolutionary causality among them remains unclear.
Emily Stanbrook   +3 more
doaj   +1 more source

The Evolutionary Dynamics of the Mitochondrial tRNA in the Cichlid Fish Family

open access: yesBiology, 2022
The mitochondrial transfer RNA genes (tRNAs) attract more attention due to their highly dynamic and rapidly evolving nature. The current study aimed to detect and evaluate the dynamics, characteristic patterns, and variations of mitochondrial tRNAs.
Yosur G. Fiteha, Mahmoud Magdy
doaj   +1 more source

Phylogenomics of trophically diverse cichlids disentangles processes driving adaptive radiation and repeated trophic transitions

open access: yesEcology and Evolution, 2022
Cichlid fishes of the tribe Tropheini are a striking case of adaptive radiation, exemplifying multiple trophic transitions between herbivory and carnivory occurring in sympatry with other established cichlid lineages. Tropheini evolved highly specialized
Pooja Singh   +9 more
doaj   +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

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

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