Belgique 2011 - Eaux douces ... Hiver*

Cristatella mucida & Hydra sp. - JCG © 2011 Cristatella mucida - JCG © 2011 Astacus leptodactylus - JCG © 2011 Ceratophyllum demersum - JCG © 2011 Myriophyllum sp. - JCG © 2011 Astacus leptodactilus - JCG © 2011 Astacus leptodactilus - JCG © 2011