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Effectiveness of estradiol valerate on sex reversion in Astyanax altiparanae (Characiformes, Characidae)
(Brazilian Archives of Biology and Technology, 2012-04-01)
The objective of this study was to evaluate the effectiveness of estradiol valerate in an attempt to feminize the male Astyanax altiparanae. One thousand newly-hatched larvae were randomly distributed in four incubators. ...
Monomorphic call structure and dimorphic vocal phenology in a sex-role reversed frog
(Springer, 2020)
Sexual signals in different animals are expected to be dimorphic when both sexes signal, but cases of monomorphism are known to occur, and we lack a clear understanding about the factors that modulate the level of sexual ...
Testicular interstitial cells, and steroidogenic detection in the protogynous fish, Synbranchus marmoratus (Teleostei, Synbranchidae)
(Churchill Livingstone, 2004-08-01)
The swamp eel, Synbranchus marmoratus, is a freshwater protogynic diandric species. Primary males develop directly as males while secondary males arise from the sex reversal of females. Fishes from Argentine and Brazil ...
Testicular interstitial cells, and steroidogenic detection in the protogynous fish, Synbranchus marmoratus (Teleostei, Synbranchidae)
(Churchill Livingstone, 2004-08-01)
The swamp eel, Synbranchus marmoratus, is a freshwater protogynic diandric species. Primary males develop directly as males while secondary males arise from the sex reversal of females. Fishes from Argentine and Brazil ...
Sex reversal and growth performance in juvenile females of the freshwater crayfish Cherax quadricarinatus (Parastacidae): Effect of increasing temperature and androgenic gland extract in the diet
(Springer, 2010-04)
Monosex male culture of C. quadricarinatus is proposed for increasing yields because males reach a larger size at harvest than females. An experiment was done to evaluate the effects of androgenic gland extract and temperature ...
Testicular interstitial cells, and steroidogenic detection in the protogynous fish, Synbranchus marmoratus (Teleostei, Synbranchidae)
(Churchill LivingstoneEdinburghEscócia, 2004)
No pain, no gain: Male plasticity in burrow digging according to female rejection in a sand-dwelling wolf spider
(Elsevier Science, 2017-07)
Behavioral plasticity allows individuals to reversibly respond to short-term variations in their ecological and social environment in order to maximize their fitness. Allocosa senex is a burrow-digging spider that inhabits ...
Production of YY-male of Nile tilapia Oreochromis niloticus (Linnaeus, 1758) from atypical fish
(Pontificia Universidad Católica de Valparaíso, 2017)
Action of the Metalloproteinases in Gonadal Remodeling during Sex Reversal in the Sequential Hermaphroditism of the Teleostei Fish Synbranchus marmoratus (Synbranchiformes: Synbranchidae)
(Mdpi, 2018-05-01)
Teleostei present great plasticity regarding sex change. During sex reversal, the whole gonad including the germinal epithelium undergoes significant changes, remodeling, and neoformation. However, there is no information ...