Results 1 to 10 of about 5,200 (218)
Confocal Identification of Immune Molecules in Skin Club Cells of Zebrafish (Danio rerio, Hamilton 1882) and Their Possible Role in Immunity [PDF]
Biology, 2022 The immune system of a fish has cellular and molecular defense mechanisms that are substantially retained throughout the evolution of vertebrates. The innate immune system provides biological processes, such as phagocytosis and mechanical barriers, to ...
Alessio Alesci +11 more
doaj +2 more sources
Caldasia, 2023 Chanos chanos es un pez óseo marino y estuarino, distribuido en las porciones tropicales de los océanos Índico y Pacífico. En noviembre de 2021 fue pescado un ejemplar de esta especie de unos 85 cm de longitud horquilla en la costa caribeña frente a San ...
Arturo Acero P. +2 more
doaj +1 more source
Oceanological and Hydrobiological Studies, 2023 The anatomy, growth, and differentiation of the dorsal fin spines of three catfish species collected from the Nile River and Lake Nasser. Egyptian waters are described, and terminology is suggested for their parts.
Farrag Mahmoud M. S. +2 more
doaj +1 more source
Morphology of the epidermis of the neotropical catfish Pimelodella lateristriga (Lichtenstein, 1823) with emphasis in club cells. [PDF]
PLoS ONE, 2012 The epidermis of Ostariophysi fish is composed of 4 main cell types: epidermal cells (or filament containing cells), mucous cells, granular cells and club cells. The morphological analysis of the epidermis of the catfish Pimelodella lateristriga revealed
Eduardo Medeiros Damasceno +4 more
doaj +1 more source
Heterogeneidade de hemoglobina nos peixes da Amazonia [PDF]
Acta Amazonica, 1978 Resumo Os padrões eletroforáticos de hemoglobinas de peixes da Amazônia foram descritos. Os peixes incluíram a pirambóia sul-americana, Lepidosiren paradoxa, quatro espécies de raias de água doce do género Potamotrygon e teleósteos sctinopterígeos de 77 ...
Unni E. H. Fyhn +5 more
doaj +1 more source
Zygoparity in Characidae - the first case of internal fertilization in the teleost cohort Otomorpha [PDF]
Neotropical Ichthyology, 2020 Most teleosts are externally fertilizing, with internal fertilization occurring as a relatively rare event. Until now, Euteleosteomorpha is the only teleost cohort known to undergo internal fertilization.
Clayton Kunio Fukakusa +2 more
doaj +1 more source
Neotropical Ichthyology, 2023 A new miniature tridentine catfish is described from the rio Purus drainage, Amazon basin, Brazil. It differs from all other tridentines in having several unique autapomorphies: conspicuous anteromedial protuberance in the snout; set of symphyseal ...
Alessio Datovo +5 more
doaj +1 more source
New species of Rhyacoglanis (Siluriformes: Pseudopimelodidae) from the upper rio Tocantins basin [PDF]
Neotropical Ichthyology, 2023 A new species of Rhyacoglanis from the upper rio Tocantins basin is described based on morphological and molecular data. The new species differs from the congeners by its color pattern, caudal fin shape, hypural bones fusion pattern, pectoral-fin spine ...
Oscar Akio Shibatta +1 more
doaj +1 more source
Species delimitation reveals an underestimated diversity of Andean catfishes of the family Astroblepidae (Teleostei: Siluriformes) [PDF]
Neotropical Ichthyology, 2020 Catfishes of the family Astroblepidae form a group composed by 82 valid species of the genus Astroblepus inhabiting high-gradient streams and rivers throughout tropical portions of the Andean Cordillera.
Luz E. Ochoa +9 more
doaj +2 more sources
Ontogeny of the specificity of gonadotropin receptors and gene expression in carp
Endocrine Connections, 2019 The pituitary gonadotropins, luteinizing hormone (LH) and follicle-stimulating hormone (FSH), are the principle endocrine drivers of reproductive processes in the gonads of jawed vertebrates.
Lian Hollander-Cohen +3 more
doaj +1 more source