clownfish hormones

[Ediaz]

They work with all,no oman, but no in those qty. Last time i heard he was triying to get a good brood of sebaes.

C-quest Inc.

[schlecht13]

Thanks for the info--very helpful!

When you say they work with all but not omans--you mean....(what works with all)?

[dantodd]

c-quest works with all.

[Chris]

I have once tried a hormone injection with 2 pairs of akyndinos adults, they had been in the tank for about 2-3 months from the wild and were large enough to be a reproductive pair.

I got no response, and saw no desire to start site cleaning as a basic indicator of potential spawning.

There is soemthing called dopamine, the fish produces, it is a spawning inhibitor, one variety of hormone has a dopamine inhibitor but it still did not seem to make them more interested in spawning.

I only tried one application, a second would be the next test, then to try mature tank raised pairs, but to do this research on the size at maturity needs to be done.

As i said in a thread on RC (about otohime) if any of these questions are to be answered the hobbiest comunity as a whole has to develop a clear and consise direction for experiments ot be under taken.

each time i surgest this in various places it is genereally ignored, so whats my incentive to provide any info?

Christian

[Morgman]

Just a side note.

Off the top of my head I remember reading a freshwater breeding article where the author pours water from a breeding pair's(just after spawning) 10g tank to another non breeding tank. This was said to help stimulate non breeders to lay. I assume most of us are doing that already with central filtration.

Just something to think about.

[Ron Popeil]

fantastic ideas folks. i do understand the network of hobbyists that would need to be strictly organized in order to implement a study of breeding with hormones, and in order to be successful i would think a much less commonly bred species of fish would need to be used: say, sebae, polymus, or chrysopterus. frequently available, particularly challenging to breed, but not necessarily bred on the scale of a hatchery.

christian, where do you get such chemicals to attempt such injections? and what sort of structured study have you proposed in the past? any links?

what about any marine biology forums with peer reviewed journal links? anyone know of any of those?

its true that for the bread and butter species, no hormones are necessary because of the ease in which they reproduce naturally. but there is definetely a need in species that are less commonly seen, that like chrysopterus or nigripes, have such dismal rates of survival. really, i think these fish are fully capable of being up there with bread and butter species, its just a common ignorance of the general public to assume that there is only one species of clownfish: percula/ocellaris.

and exploration of the breeding hormones introduced into the water during breeding would be an interesting element to look into. i dont suppose we have any students with access to labs that could isolate any potential chemicals or hormones in water samples from folks with breeding clowns? any friend of a friends?

[Chris]

HI Ron

I proposed a larger scale trial of otohime food in a more controlled experiment ot look at growth rates, but this would be virtually the same thing. The surgestion is in reef central breeding forum a thread started by luis about otohime.

The hormones came form an aquaculture source, if you wanted some you just need to find some sort of aquaculture supply place and follow your nose from there. Personally i dont htink the specie syou choose is of any huge relavance something that settles well into a pot or some otherspawning environemnt would be good, and preferably a larger species as injections arent the easiest thing to do.

I would be more than happy to help find the hormones and setup the tests if someone else wishes to help, would need 20+ people with at least 3 spare pairs of previously never spawning fish, probably of any species other than premnas.

Christian