Male vs. Female black banded sunfish
Posted 19 August 2013 - 11:09 PM
Posted 20 August 2013 - 02:37 PM
I have seen thousands of blackbanded sunfish over the years, but I have never seen an all black one. I have seen them with irregualr or missing bands though. I have also tried to discern male from female and have been unsuccessful except for during breeding season when the females will be fatter than the males. I am certain that smbass(Brian Zimmerman) can tell you specifically how to sex them if he chimes in though. If he doesn't, I would recommend sending him a PM.
Posted 21 August 2013 - 10:20 AM
1. Females have sharper contrast between black bands and tan/brassy areas between bands.
Adult males have a dusky gray haze on the areas between bands, and on fin membranes.
(Breeding males get more gray, especially on fins, and the black bands get fainter).
2. On average, adult females have brighter red-orange on pelvic fins than males (but this varies a lot).
3. Rear edge of opercular flap of males has a gold border than contrasts sharply with the black flap.
Females either lack the gold border on the flap, or have a less-contrasting border.
Have other folks seen these differences between sexes? or other differences?
Posted 21 August 2013 - 01:03 PM
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