Release of 25 european pond turtles (Emys orbicularis) in Lake of Banyoles (+ LIFE+ PROJECT - PROJECT ESTANY-)
The Consortium of the lake continues in 2012 with the release of european pond turtles in "Lake Project" proceeding from captive breeding. On Sunday 15 April have been releasing 25 individuals at the Casa Nostra pond. The success of the reintroduction began in 2011 promising a successful action that should represent the ultimate recovery of the species in the lake. The event involved 50 students from the school Casa Nostra from Banyoles and a press conference for the media has been made.
The euroepan pond turtle (Emys orbicularis) is a small turtle, black coloration with yellow patches, adapted to living in aquatic environments. Currently in Catalonia, the specie is in a critical condition and is considered threatened. It is considered the species of aquatic turtles from the lake because fossil specimens have been found at the Neolithic village of Draga. This action is needed before the species finally extinguished in the area, as the current residual population of the lake has no ability to recover.
Turtles come from CRT Tortoise Breeding Center of the Alberes. 25 individuals of the pond turtle, born in captivity and released with a size of between 7 and 11 cm in total length. For next year is expected to reintroduce the last 25 units in the area of the lagoon of Our House in the framework of the lake.
All copies have released a subcutaneous identity chip, and 12 copies of a lead radioemissor glued to the shell that will follow the movement of individuals with a receiving antenna and see what they use space freed individuals.
• RESULTS OF THE CAMPAIGN OF ELIMINATION OF TURTLES AND EXOTIC STATE of individuals released in 2012
One of the problems which are native turtles is to survive competition from invasive exotic turtles. For several years the constant release of red-eared turtles, popularly known as sea turtles in Florida has led to a risk assessment difficult for small persistent populations of native turtles. To reverse this situation and in the context of "Lake Project" developed by the Consortium of the lake, several actions are planned to reduce the number of copies of exotic turtles and enhance populations of pond turtles.
During 2010, 2011 amnd 2012 with the campaign to eliminate exotic turtles were removed from the medium 490 exotic turtles, of which 472 correspond to the Florida turtle (Trachemys scripta) in varieties of red ears and yellow belly , 8 the false map turtle (Graptemys pseudogeographica) and 9 of four new species so far not located at the lake: the painted turtle (Chrysemys picta), Trachemys emolli , Pseudemys nelsoni and the hieroglyphic turtle (Pseudemys concinna).
The systems capture of turtles have been several. The traps were more effective was the insulation which 338 turtles were caught.
Among the shots are often taken 29 shots terrapin (Mauremys leprosa) another species of turtle native to Europe and protected.
Finally, the highly positive in 157 catches for Emys orbicularis, 42 correspond to multiple recaptures of 153 individuals released in the ponds in Can Morgat and Amaradors actions for the recovery of the species within the same project LIFE and marked with a subcutaneous chip. The specimens show a very good growth, a very vivid color and with regard to tracking transmitters that have seen so far have not given up the gaps and have not made big moves, considering the space well suited for the species.
These actions are expected future recovery of the species, one of the main objectives of the project.
Banyoles, 15 d’abril de 2013
nens i nenes de l'Escola Casa Nostra ajudant a alliberar especies autòctones de tortuga d'estany