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Larvaes of Calotriton Arnoldi in captivity

This is a discussion on Larvaes of Calotriton Arnoldi in captivity within the General Discussion & News from Members forums, part of the General Topics category; This news appeared in the web of Department of environtment of catalonia with 2 pics. http://mediambient.gencat.net/cat/el...cePageID=593#1 I don’t find nothing ...

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Old 3rd August 2007   #1 (permalink)
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Default Larvaes of Calotriton Arnoldi in captivity

This news appeared in the web of Department of environtment of catalonia with 2 pics.
http://mediambient.gencat.net/cat/el...cePageID=593#1
I don’t find nothing in english or spanish, this is a bad translation.

For first time, larvaes of Calotriton Arnoldi in captivity.

7 larvaes of this newt was born in a center for fauna recuperation in Torreferrusa (Barcelona). The reproduction in captivity is a part of the “Pla de conservació del tritó del Montseny”( Conservation plan for Montseny brook newt) developed for Department of environtment and Barcelona University. This plan wants analyze the fenology, demography and real distribution, ensure the conservation and create new populations (for a possible catastrophe in free populations).

The breeding group was collect this spring. The group consists in 20 newts (8 males and 12 females). Few days after, the newts started the amplexus, and after started to lay eggs and the caudates still continues laying eggs. Now there are 150 eggs, 23 in advanced development fase. The temperature in the tanks is 13º C.

The eggs (3mm) are in plastic receptacles (18º C) and larvaes (6mm) are in same conditions and eating tubifex. The priority now is the study to reduce the deads.

Because of the limited populations and the reduced area of distribution (40 km2) this newt is highly in danger.



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