Strophurus sex ratio
- Thread starter Justin
- Start date
Jerry Peebles
New member
Justin-
That's a good question, so I took a look back at the past five years of my notes on Strophurus. Out of approximately 300 hatchlings (from six species) that I produced and was able to eventually know the sex on, I ended up with just about exactly and even ratio of males to females on most species. Spinigerus were a bit female heavy and c. ciliaris a bit male heavy certain years. Most of these were incubated at about 82 F (28 C). There is some evidence that Strophurus are TSD (Temp. sexed determined), and I've played around with this a bit, however, it will take some time to learn more. For now, 82 F seems to work so well for most species that there is not much point in changing.
Hope this helps,
Jerry.
That's a good question, so I took a look back at the past five years of my notes on Strophurus. Out of approximately 300 hatchlings (from six species) that I produced and was able to eventually know the sex on, I ended up with just about exactly and even ratio of males to females on most species. Spinigerus were a bit female heavy and c. ciliaris a bit male heavy certain years. Most of these were incubated at about 82 F (28 C). There is some evidence that Strophurus are TSD (Temp. sexed determined), and I've played around with this a bit, however, it will take some time to learn more. For now, 82 F seems to work so well for most species that there is not much point in changing.
Hope this helps,
Jerry.
Jerry Peebles
New member
Hi Justin-
I have not bred spinigerus long enough to have had the chance to do any experimenting yet. Plus, I'm not too disappointed with the sex ratio so far. As for ciliairis, I have played around changing the incubating temps a bit and honestly have not noticed much difference. Perhaps a more radical change is needed to make a difference. At any rate, nothing I'm doing is what I would call scientific, yet I would like to eventually figure out to what extent certain species are (or aren't) TSD.
Regards,
Jerry.
I have not bred spinigerus long enough to have had the chance to do any experimenting yet. Plus, I'm not too disappointed with the sex ratio so far. As for ciliairis, I have played around changing the incubating temps a bit and honestly have not noticed much difference. Perhaps a more radical change is needed to make a difference. At any rate, nothing I'm doing is what I would call scientific, yet I would like to eventually figure out to what extent certain species are (or aren't) TSD.
Regards,
Jerry.
Nathan Hall
Founding Father
I think that is probably correct. There just aren't enough folks out there who are willing to do this. I'm afraid that the data keepers are the minority. I do my best to keep records of this kind of information.