Results 1 to 10 of about 3,127 (143)

Predation impacts brain allometry in female guppies (Poecilia reticulata). [PDF]

open access: yesEvol Ecol, 2022
AbstractCognitive and sensory abilities are vital in affecting survival under predation risk, leading to selection on brain anatomy. However, how exactly predation and brain evolution are linked has not yet been resolved, as current empirical evidence is inconclusive. This may be due to predation pressure having different effects across life stages and/
Vega-Trejo R   +3 more
europepmc   +5 more sources

Experience-Dependent Color Constancy in Guppies (Poecilia reticulata) [PDF]

open access: yesNeural Plasticity, 2002
We investigated the ability to recognize the color of surfaces in fish (Poecilia reticulata), bred from birth in conditions of artificial light with constant spectral content. The capacity for color constancy significantly deteriorated when compared that
I. E. Intskirveli   +2 more
doaj   +3 more sources

Water hardness influenced variations in reproductive potential of two freshwater fish species; Poecilia reticulata and Betta splendens [PDF]

open access: yesBMC Research Notes, 2020
Objective Hardness of water in the form of CaCO3 affects reproductive potential in various fish species, differently. This study evaluates the effect of water hardness on growth and reproduction of two aquarium fishes, Poecilia reticulata (Ovo-viviparous
Abarna Krishnakumar   +2 more
doaj   +2 more sources

Ornamental aquaculture as a pathway for the introduction of non-native fish in coastal drainage of northeastern Brazil [PDF]

open access: yesActa Limnologica Brasiliensia, 2023
: Aim We present the first record of the introduction of three non-native ornamental fish species, resulting from ornamental aquaculture escapes on the Northeast Mata Atlântica hydrographic ecoregion, with information on the reproductive activity ...
Jefferson Saulo da Vitória Luduvice   +1 more
doaj   +1 more source

Poecilia reticulata Peters 1859

open access: yes, 2021
Poecilia reticulata Peters, 1859 Figure 2W Material examined. BRAZIL – São Paulo • Iperó, Ipanema River; 23°25.38′S, 047°28.36′W; 560 m; 08.II. 2016; W.S. Smith and L. Halcsik leg.; hand nets; LEEF 130929 (22 spec., 10.0−28.0 mm). Identification. Body elongated; mouth superior, dentary prognathous; premaxilla and dentary with several small teeth ...
Smith, Welber Senteio   +4 more
openaire   +2 more sources

Alternative reproductive tactics in male freshwater fish influence the accuracy of species recognition

open access: yesEcology and Evolution, 2021
Sexual conflict can result in coercive mating. Because males bear low costs of heterospecific mating, coercive males may engage in misdirected mating attempts toward heterospecific females. In contrast, sexual selection through consensual mate choice can
Shingo Fujimoto   +4 more
doaj   +1 more source

First record of the non-native fish Poecilia reticulata (Cyprinodontiformes: Poeciliidae), in Chiapas, southern Mexico

open access: yesCuadernos de investigación UNED, 2021
Introduction: Due to its colors, shape, size, and simplicity of care, the neotropical fish Poecilia reticulata (guppy) is popular in the aquarium trade. It is also valued as mosquito control and is now found in most of the world. Objective: To report its
Paola López Fuentes   +4 more
doaj   +1 more source

HYPOPHYSECTOMIE DE POECILIA RETICULATA (POISSON TÉLÉOSTÉEN) [PDF]

open access: yesAnnales de Biologie Animale Biochimie Biophysique, 1968
Une technique d'hypophysectomie par voie operculaire particulièrement simple et rapide, est décrite chez le Guppy Poecalia reticulata. La pénicilline administrée pendant la cicatrisation diminue la mortalité postoperatoire.A quick easy surgical technique of hypophysectomy using opercular approach is described in the Guppy Poecilia reticulata.
Jalabert, Bernard   +2 more
openaire   +2 more sources

Gametic isolation in guppies ( Poecilia reticulata ) [PDF]

open access: yesProceedings of the Royal Society B: Biological Sciences, 2006
Post-mating reproductive isolating mechanisms may be among the earliest reproductive barriers to emerge among incipient species. Trinidadian guppy, Poecilia reticulata , populations in the Caroni and Oropouche drainages in Northern Trinidad exhibit marked genetic divergence and provide an ...
A M, Ludlow, A E, Magurran
openaire   +2 more sources

DNA Barcoding Ikan Introduksi Khas Telaga Sari, Kabupaten Pasuruan

open access: yesBiotropika: Journal of Tropical Biology, 2019
Telaga Sari terletak di Purwodadi, Kabupaten Pasuruan yang memiliki kelimpahan jenis ikan introduksi dari Famili Poeciliidae. Anggota Poeciliidae merupakan ikan yang berukuran kecil, live-bearers, memiliki dimorfi seksual dari segi ukuran tubuh dan pola ...
Dwi Anggorowati Rahayu   +2 more
doaj   +1 more source

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