Paramesotriton laoensis breeding, chapter 2

[paul_b]

AW: Paramesotriton laoensis breeding, chapter 2

Now, after one year on land, I brought them back to water within one week.
Seems to work good!

Paul

 

[juraj]

I let mine in a semi-aquatic setup (flat rocks,moss and 20 mmm of water around ). They will decide themselves.
cheers
j.

 

[paul_b]

AW: Paramesotriton laoensis breeding, chapter 2

I made the water part more attractive than the land part, and so they decided to go into the water.

Paul

 

[robkeulers]

going good Paul!

How are this years larvae doing?

 

[paul_b]

AW: Paramesotriton laoensis breeding, chapter 2

Hi Rob,

only few losses, now I am waiting for the first to go on land!

Paul

 

[paul_b]

first on land!

The first on land today!

I always thought they grow slow on land; but comparing the new with one of last year...

 

[Azhael]

Congratulations. That´s a treat for the eyes.

 

[Ingo]

Hello,

i want to supplement some Pics of my youngsters.

Greetings Ingo V.

 

[Alejandro]

Those are gorgeous babies Paul! Congratulations! Thank you very much for sharing.

 

[paul_b]

AW: Paramesotriton laoensis breeding, chapter 2

Hi,

my laoensis breeding of last year are doing very well in water now!

Also the young deloustali.

Paul

 

[paul_b]

AW: Paramesotriton laoensis breeding, chapter 2

... and here my "babys" of this year, and the tank!

Paul

 

[Mark]

Really well done Paul! Another great year.

Would I be right in thinking you have a pump with an extension into the gravel to flush the dirt out and keep it fresh?

 

[paul_b]

AW: Paramesotriton laoensis breeding, chapter 2

right Mark!

Water part on booth sides,
pump on one side brings the water to the other,
gravel between is cleaned by the streaming water,
and the surface by "raining" each day!
Very good success with this setups!

Paul

 

[Corallus]

These are mines that I obtain from Paul the last year and are in the water since that time

 

[Ingo]

AW: Paramesotriton laoensis breeding, chapter 2

Hello,

i want to observe, that my youngsters are growing in the aquatic phase much faster than in the terrestrial phase.
They do very fine.

Greetings Ingo V.

 

[paul_b]

AW: Paramesotriton laoensis breeding, chapter 2

Hello,

here a photo of the tank (120 * 40 * 50 cm) from my juvenile from last year!
Do very well in this set up.

Paul

 

[paul_b]

AW: Paramesotriton laoensis breeding, chapter 3

I hope chapter three is starting today!

Change water (2/3: 22°C to 19 °C), one hour later the male started heavily waving with its tail!
Nearly the same date like the last two years and same situation!

Paul

 

[Jennewt]

Congratulations Paul!
I have found, at least with P. fuzhongensis, that w/c adults breed very easily for the first couple of years, but with egg yield reducing each year, and then stop breeding even when the same conditions are given (similar to your regimen). I am wondering if there is some sort of long-scale biological clock thaty tells them its time to breed even without the correct environmental changes, which eventually fades away without being reset each year. Has anyone else had this experience with Paramesotriton?
Chris

Interesting observation. If this is true, it does not bode well for long-term captive propagation of Paramesos. Paul got fewer eggs this year, which seems to agree with this observation. I'm thinking that there may be other factors that could explain it. For example, there may be something missing from the captive diet that is important for egg production. I would suggest the possibility that the lack of UV light in captivity could be a problem for breeding some caudate species. UV can be either an environmental cue and/or a source of vitamin D. Its importance for reptiles is well known.

 

[paul_b]

AW: Re: Paramesotriton laoensis breeding, chapter 2

Interesting observation. If this is true, it does not bode well for long-term captive propagation of Paramesos. Paul got fewer eggs this year, which seems to agree with this observation. I'm thinking that there may be other factors that could explain it. For example, there may be something missing from the captive diet that is important for egg production. I would suggest the possibility that the lack of UV light in captivity could be a problem for breeding some caudate species. UV can be either an environmental cue and/or a source of vitamin D. Its importance for reptiles is well known.

When I see how good my breeding from last year grow, I can not believe that there is something wrong in the diet!
But think on monsoon!
Not possible to simulate this in captivity! Heavy raining, land under water, steamy rivers .....

But I think you ask the second question!
The first is - so many laoensis in captivity, but only so few breeding! What is the reason?
Some people ask me - I keep them like you describe but no success. Please tell me more!
Then I ask - tell me exactly how you keep them!
What tank, how many, temperatures, water changes, pump, food ... - but then I don't get answers!
PLEASE tell the unsuccessful keeping - perhaps then we can find an answer!
And if it is true - we will see when we have F2 breeding!

Paul

 

[paul_b]

AW: Paramesotriton laoensis breeding, chapter 2

Dear friends,

now, after one year, I wrote to all that got my P.laoensis breeding from last year how the juvenile are doing!

The response (half of them answerd in the meantime) is good!
Most of the groups are doing fine!
Now I am waiting for the response of the rest!

Paul