John q
Member
So according to this study it's the Male fish that takes up the maternal care for this sp and not the female as previously thought. Why is this groundbreaking news, well if true it appears we've been mistakingly sexing chocolate gourami for years.
I'm guessing this will ruffle a few feathers amongst the experts.
Quote:
"According to our observations of 32 spawning events, parental care in this species was always performed by the male. Our visual observations were confirmed by video and histological analysis. This suggests that the sex in this species has probably been misidentified so far. We argue that the putative “females” (previously defined by external features) were in fact males, and that there are probably no exceptions to male parental care in osphronemid fishes."
I'm guessing this will ruffle a few feathers amongst the experts.
Quote:
"According to our observations of 32 spawning events, parental care in this species was always performed by the male. Our visual observations were confirmed by video and histological analysis. This suggests that the sex in this species has probably been misidentified so far. We argue that the putative “females” (previously defined by external features) were in fact males, and that there are probably no exceptions to male parental care in osphronemid fishes."
Paternal mouthbrooding in the chocolate gourami Sphaerichthys osphromenoides (Osphronemidae) - Environmental Biology of Fishes
We examined sexual dimorphism and parental care in the chocolate gourami (Sphaerichthys osphromenoides) by visual observations, video recording of spawning, and histological analysis of the gonads of individuals in which spawning and mouthbrooding was previously observed. S. osphromenoides is...
link.springer.com