Results 11 to 20 of about 14,761 (221)

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

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

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

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

Poecilia reticulata Peters 1859

open access: yes, 2018
{"references": ["Pavanelli CS, Graca WJ, Zawadzki CH, Britski HA, Vidotti AP, Avelino GS, Verissimo S. Fishes from the Corumba Reservoir, Paranaiba River drainage, upper rio Parana basin, State of Goias, Brazil. Check List. 2007; 3 (1): 58 - 64."]}
Ota, Renata Rúbia   +3 more
openaire   +2 more sources

Metacestodes of Glossocercus auritus (Cyclophyllidea, Gryporhynchidae) in Poecilia reticulata (Pisces, Poeciliidae) from Brazil Metacestoides de Glossocercus auritus (Cyclophyllidea, Gryporhynchidae) em Poecilia reticulata (Pisces, Poeciliidae) no Brasil

open access: yesRevista Brasileira de Parasitologia Veterinária, 2011
Studies on fish parasites in Pampulha dam, Belo Horizonte, Minas Gerais, Brazil, found specimens of Poecilia reticulata Peters, 1859 harboring natural infection by larval stages of tapeworms. A total of 250 specimens of P.
Hudson Alves Pinto, Alan Lane de Melo
doaj   +1 more source

DIFFERENCES IN THE ACUTE AMMONIA TOXICITY BETWEEN SEXES OF GUPPY Poecilia reticulata (POECILIIDAE)

open access: yesActa Biológica Colombiana, 2023
This study evaluated the sensitivity of male and female of guppies (Poecilia reticulata) to ammonia. LC50-96h for males, females and combined sexes of P.
Sandra Carla Forneck   +3 more
doaj   +1 more source

Predator avoidance in extremophile fish [PDF]

open access: yes, 2013
Extreme habitats are often characterized by reduced predation pressures, thus representing refuges for the inhabiting species. The present study was designed to investigate predator avoidance of extremophile populations of Poecilia mexicana and P ...
Arias-Rodriguez, Lenin   +7 more
core   +2 more sources

Exocrine pancreatic carcinogenesis in the guppy Poecilia reticulata [PDF]

open access: yesDiseases of Aquatic Organisms, 2002
Exocrine pancreatic neoplasms developed in the guppy Poecilia reticulata following exposure to the direct-acting carcinogen methylazoxymethanol acetate (MAM-Ac). Fish 6 to 10 d old were exposed to nominal, non-toxic concentrations of 4 and 10 mg MAM-Ac l(-1) for 2 h and then transferred to carcinogen-free water for grow-out.
John W, Fourni, William E, Hawkins
openaire   +2 more sources

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