Results 161 to 170 of about 6,137 (196)

Eugenol as anesthetic for Cnesterodon decemmaculatus (Cyprinodontiformes, Poeciliidae)

Laboratory Animals, 2023
Anesthetics are commonly used in fish for surgery and to facilitate capture, handling and transport in aquaculture and experimental procedures. In research, the selection of the anesthetic depends on its properties and on the recovery time. Eugenol has been pointed out as an effective anesthetic for fish, alternative to traditional drugs.
Maria C Vercellini, Ramiro Rearte, Luca di Cesare, Miguel A Ayala, Martin M Montes   +4 more
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Pteridines in the skin of xiphophorine fish (Poeciliidae)

Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 1977
1. 1. A comparative study of substances fluorescing at 365 nm found in the skin and fins of Xiphophorine fish was carried out by means of thin-layer chromatography and fluorometry. Groups of single xanthophores, xanthoerythrophores and melanophores were examined by means of micro cellulose thin layers. 2. 2.
M, Henze, G, Rempeters, F, Anders
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On the availability of the name Poecilia kempkesi Poeser 2013 (Cyprinodontiformes: Poeciliidae)

Zootaxa, 2021
The poeciliid species, Poecilia kempkesi Poeser, 2013, was the fourth species of the subgenus Acanthophacelus Eigenmann, 1907 to be described, based on individuals from a single urban anthropized locality close to Paramaribo, Suriname (Poeser, 2013).
Bragança, Pedro H. N., Ottoni, Felipe P.   +1 more
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EVOLUTION OF A TRIHYBRID UNISEXUAL FISH ( POECILIOPSIS , POECILIIDAE)

Evolution, 1974
A diploid all-female fish of the genus Poeciliopsis (Poeciliidae) inhabits the Rio Fuerte of northwestern Mexico. From both morphological and biochemical studies, it is clear that this form, designated P. monachalucida (Schultz, 1969), arose by hybridization between P. monacha and P. lucida. (Schultz, 1969; Vrijenhoek, 1972).
Robert C, Vrijenhoek, R Jack, Schultz
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Genome organization in Xiphophorus (Poeciliidae; Telostei)

Molecular and General Genetics MGG, 1982
Xiphophorus represents a valuable model for studying genomic contributions to neoplasia. For analyzing these contributions at the molecular level, basic information about the genome organization is a prerequisite. This study presents data on the organization and complexity of the genomes of three species of Xiphophorus, maculatus, variatus and helleri,
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Superfetation in the viviparous fish Heterandria formosa (Poeciliidae)

Journal of Morphology, 2019
Abstract Heterandria formosa is a viviparous poeciliid native of the southeastern of United States of America. H. formosa exhibits unique reproductive features as: (a) production of extremely small eggs with scarce quantity of yolk (microlecithal eggs), (b) consequently, a high level of matrotrophy and development of a complex follicular placenta, (c ...
María Guadalupe Guzmán‐Bárcenas, Mari Carmen Uribe   +1 more
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The nomenclature of the family Poeciliidae or Cyprinodontidae

Proceedings of the United States National Museum, 1894
USNM_index ...
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Melanomas inXiphophorus variatus (Pisces, Poeciliidae) in the absence of hybridization

Experientia, 1973
Nachweis von genetisch bedingten Melanomen bei Wildfangen der reinen Art des ZahnkarpfenXiphophorus variatus, wobei es sich eindeutig nicht um einen Artbastard handelt.
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Life History of Brachyraphis rhabdophora (Pisces: Poeciliidae)

Copeia, 1993
We describe the life-history pattern of Brachyraphis rhabdophora from several Costa Rican locations. This species is nonsuperfetating, meaning that it carries only one brood of developing young at a time. They are also lecithotrophic (ovoviviparous), meaning that there is no evidence of maternal provisioning of the young after the eggs have been ...
David Reznick, Axel Meyer, David Frear
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The caudal neurosecretory system of Poecilia sphenops (Poeciliidae)

Journal of Morphology, 1980
AbstractThe caudal neurosecretory system of the molly, Poecilia sphenops (Poeciliidae) was studied by light and electron microscopy. In this species the cell bodies form a focal nuclear group in the caudal spinal cord. The neurosecretory cells are in contact with glial elements, axon terminals, and the lumen of the central canal.
openaire   +2 more sources