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Presence, localization and morphology of TELOCYTES in developmental gonads of fishes
(2019-05-01)
Telocytes are a new defined type of interstitial cells, considered as a stem cell, with very long and thin cytoplasmic extensions. They are present in the vertebrates, and may participate in tissue remodeling. In fish, ...
Morphological and Morphometric Aspects of Crassostrea rhizophorae (Guilding, 1828) Oocytes in Three Stages of the Gonadal Cycle
(Sociedad Chilena de Anatomía, 2006)
Reproductive aspects of Chagas disease vectors (Hemiptera, Triatominae) with anatomical teratologies
(2018-09-01)
As Chagas disease has no cure, vector control is the most effective method of preventing this neglected disease. Generally the anatomical teratologies are associated with hormonal dysfunction of the corpus allatum (juvenile ...
Female gonad morphology and maturation in Centropages furcatus (Dana, 1852)
(Invertebrate Reproduction & Development, 2009)
Centropages furcatus is a dominant species of the planktonic community in the Ensenada de La Paz, Baja California Sur, Mexico. Little is known about gonad morphology and maturation of thisspecies, and that knowledge is key ...
Nonylphenol and cyproterone acetate effects in the liver and gonads of Lithobates catesbeianus (Anura) tadpoles and juveniles
(2021-11-01)
Environmental pollution plays an important role in amphibian population decline. Contamination with endocrine disrupting chemicals (EDCs) is particularly worrying due to their capacity to adversely affect organisms at low ...
Morphometric and gonad maturity of the spider crab Libinia ferreirae Brito Capello, 1871 (Decapoda: Majoidea: Epialtidae) on the south-eastern Brazilian coast
(Cambridge Univ Press, 2017-03-01)
Sexual maturity of the spider crab Libinia ferreirae was assessed for each sex, based on body dimensions and observations of gonad condition. A total of 346 crabs were analysed, of which 68% were females. Immature and adult ...
Morphological characterization of the gonads of bullfrog tadpoles (Lithobates catesbeianus)
(2015-01-01)
Introduction: This work describes various aspects of early gonadal development of female and male in pre-metamorphic tadpoles (Lithobates catesbeianus) at Gosner stage 25. Materials and Methods: Ovaries and testicles were ...
Maturidade sexual, lateralidade e dimorfismo sexual do caranguejo dulcícola dilocarcinus pagei no Sudeste do Brasil
(2016-01-01)
This study estimated the sexual maturity of Dilocarcinus pagei Stimpson, 1861 based on relative growth and gonadal development. In addition, a possible sexual dimorphism was reported. The specimens were monthly captured ...
Cellular development of the germinal epithelium during the female and male gametogenesis of Chaetodon striatus (Perciformes: Chaetodontidae)
(2020-01-01)
SummaryButterflyfish Chaetodon striatus is highly sought after in the marine ornamental aquarium, although studies about its reproductive biology are scarce. Therefore, to contribute to a better understanding of the ...