Gonad Development
Gonad development and reproduction of the ballyhoo half beak, Hemiramphus brasiliensis from the coastal waters of Rio Grande do Norte, Brazil
... This study indicates that females predominate in the sampled population of H. brasiliensis. The females were larger in size than the males, which attained sexual maturity earlier than the females. The macroscopic gonadal ...
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Apresentada à Universidade da Madeira Para obtenção do grau de Doutor Cláudia Maria Neves Delgado Gonad Development and Hormone Titres in Loggerhead Sea Turtles ( Caretta caretta) in the NE Atlantic
... and gonad development in wild juvenile pelagic turtles are logistically difficult to obtain, owing to both the at-sea sampling requirement and the absence of an accurate sexing method without deep ...
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Gonad development in females of fiddler crab Uca rapax (Crustacea, Brachyura, Ocypodidae) using macro and microscopic techniques
... of gonad stages agrees with the modifications of the ...senescent gonad. On the other hand, the spent gonad is generally more voluminous than the immature ...senescent gonad shows several ...
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Visual communication stimulates reproduction in Nile tilapia, Oreochromis niloticus (L.)
... Isolated and non-isolated fish (from 500 L-holding tanks) were compared to test the effect of isolation on gonad regression. Eight males and eight females (Table 1) were taken randomly and gonads were obtained ...
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Overexpression of aromatase alone is sufficient for ovarian development in genetically male chicken embryos.
... The data presented here clearly showed that the addition of aromatase alone into genetic male embryos was sufficient for female gonad development. However, in addition to aromatase, the final conversion of ...
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Population Structure and Somatic Indexes of Hypostomus cf. ancistroides (Siluriformes, Loricariidae) Collected from the
... The gonad somatic index analysis for the females of ...The gonad development began in August and had its peak in ...the gonad somatic index was also observed by Querol et ...the gonad ...
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FEEDING DYNAMICS AND ECOMORPHOLOGY OF Oligosarcus jenynsii (GUNTHER, 1864) AND Oligosarcus robustus (MENEZES, 1969) IN THE LAGOA FORTALEZA, SOUTHERN BRAZIL
... The condition factor varies as a function of several biological events such as amount of fat, susceptibility to environmental changes, gonad development and degree of parasitism (Barbieri et al., 1985). The ...
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Reproductive biology of Echinometra lucunter (Echinodermata: Echinoidea) in a northeast Brazilian sandstone reef
... Recently, Ventura et al. (2003) have mentioned ecological and reproductive aspects of the E. lucunter populations from Arraial do Cabo (rocky shore in Rio de Janeiro) and the Abrolhos archipelago (coral reef in Bahia). ...
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Functional aspects of hybrid genome interaction : sex determination and gene expression regulation in the Squalius alburnoides complex
... male gonad development, the anti-Müllerian hormone, amh was a good initial ...a gonad specific expression pattern, restricted to the Sertoli cell lineage in testis and to granulosa cells in ...During ...
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Exposure to exogenous enkephalins disrupts reproductive development in the Eastern lubber grasshopper, Romalea microptera (Insecta: Orthoptera).
... reproductive development in insects is largely ...on gonad development in the Eastern lubber grasshopper, Romalea ...reproductive development in both ...sexual development and also ...
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Reproductive biology in the starfish Echinaster (Othilia) guyanensis (Echinodermata: Asteroidea) in southeastern Brazil
... season. Gonad development was described in three stages, based on the frequency of cell types, size and shape of acinus, with adaptations, B YRNE et ...
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Reproductive investment and multiple spawning evidence in the redfi nger rubble crab Eriphia gonagra (Brachyura, Eriphioidea)
... each gonad development stage by size class, confirmed the hypothesis that smaller females invest less energy in reproduction, as females in the rudimentary gonad stage (RU) predominated in the first ...
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Gametogenesis in the Pacific oyster Crassostrea gigas: a microarrays-based analysis identifies sex and stage specific genes.
... Four clusters grouped genes involved in both male and female gametogenesis. Among them, cluster 10 was particularly peculiar as it groups 41 genes that increased in expression from stage 0 to stage 1 and 2 and decreased ...
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Evaluation of Personal Shields Used in Selected Radiology Departments
... The present descriptive study was performed at three hospitals affiliated to Mashhad University of Medical Sciences during 2011- 2012. In this study, apron, gonad, thyroid, skirt and vest shields were evaluated. ...
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GONAD CHARACTERIZATION AND REPRODUCTIVE CYCLE OF Collisella subrugosa (ORBIGNY, 1846) (GASTROPODA: ACMAEIDAE) IN THE NORTHEASTERN BRAZIL
... The gonad is full and cover all of the ventral space within the visceral ...This gonad produces considerable pressure on the other visceral mass structures, mostly on the digestive ...The gonad ...
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CO-OPERATIVE INDICATORS DEVELOPMENT AS AN INSTRUMENT FOR JOINT IMPLEMENTATION OF SUSTAINABLE DEVELOPMENT
... As mentioned above, the definition of action targets is a step in the procedure of indicators development. Action targets are quantitative targets that express both the need for action and the willingness to act. ...
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GPCRs Direct Germline Development and Somatic Gonad Function in Planarians.
... We show that the large metazoan rhodopsin family has split into multiple diverse subfamilies in planarians, of which, only one (Srw) has been reported in other animals. Much like in nema- todes, planarian GPCRs can ...
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A microarray-based analysis of gametogenesis in two Portuguese populations of the European clam Ruditapes decussatus.
... the development of zygotes ...their development reinitiates during spawning, by hormonal stimulation or other ...to development occurs at metaphase I, prior to extrusion of the first polar body, ...
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WP 105 Family Planning and Development: Aggregate Effects of Contraceptive Use
... different development policies to choose from and therefore it is important to understand the cost-effectiveness of each ...in development economics ...
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Firms, Informality and Development: Theory and evidence from Brazil
... I consider four prototypical policy interventions: (i) reducing formal sector’s entry costs; (ii) reducing the payroll tax; (iii) increasing the cost of the extensive margin of informali[r] ...
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