Results 131 to 140 of about 977 (168)
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Eugenol as anesthetic for Cnesterodon decemmaculatus (Cyprinodontiformes, Poeciliidae)
Laboratory Animals, 2023Anesthetics 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 +4 more
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REPRODUCTIVE ADAPTATIONS AMONG VIVIPAROUS FISHES (CYPRINODONTIFORMES: POECILIIDAE)
Evolution; International Journal of Organic Evolution, 1978Adaptations for placing a maximum number of mature offspring in the next generation fall between the two adaptive extremes of having either high reproductive rates and low survival rates or low reproductive rates and high survival rates. Among the fishes, both extremes have been realized; for example, the ling, Molva molva may produce 20-30 X 106 eggs ...
R Jack Schultz
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Pteridines in the skin of xiphophorine fish (Poeciliidae)
Comparative Biochemistry and Physiology Part B: Comparative Biochemistry, 19771. 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, 2021The 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. +1 more
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EVOLUTION OF A TRIHYBRID UNISEXUAL FISH ( POECILIOPSIS , POECILIIDAE)
Evolution, 1974A 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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Presence of an Intrapineal Circadian Oscillator in the Teleostean Family Poeciliidae
General and Comparative Endocrinology, 1999In most fish, rhythmic melatonin production is controlled by circadian oscillators located within the pineal (=pineal clocks) that are reset daily by the ambient light:dark (LD) cycle. However, one question that has yet to be addressed concerns the phylogenetic distribution of the pineal clock within fish families.
D K, Okimoto, M H, Stetson
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Genome organization in Xiphophorus (Poeciliidae; Telostei)
Molecular and General Genetics MGG, 1982Xiphophorus 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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The nomenclature of the family Poeciliidae or Cyprinodontidae
Proceedings of the United States National Museum, 1894USNM_index ...
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Superfetation in the viviparous fish Heterandria formosa (Poeciliidae)
Journal of Morphology, 2019Abstract 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 +1 more
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