Invasive aquatic species: Are the proposed measures successful?

The spinycheek crayfish and the signal crayfish are two invasive species that have been spreading throughout Europe for many years - with a devastating impact on local ecosystems. DP MPs André Bauler and Gusty Graas wanted to know from the concerned minister whether the measures proposed in the action plan had so far been successful, how many of these animals have been caught or fished in recent years and further details on the plans to combat these invasive species.

« L’Écrevisse signal (Pacifastacus leniusculus) et l’Écrevisse américaine (Faxonius limosus) sont des espèces exotiques envahissantes, qui se répandent à pas rapides dans nombre de cours d’eau européens depuis les années 1960.

Le Plan d’action pour espèces exotiques envahissantes relatif à ces deux espèces précise que compte tenu de leur répartition actuelle, une éradication ne peut être envisagée, et que l’objectif recherché sera par conséquent le contrôle de population, sauf pour des zones prioritaires, dans lesquelles des méthodes de gestion plus intensives seront mises en place.

Dans ce contexte nous aimerions poser les questions suivantes à Madame la Ministre de l’Environnement, du Climat et du Développement durable :

– Combien d’écrevisses signales et américaines ont été ou pêchées ou captées annuellement au fil des cinq dernières années ?

– Les différentes méthodes de régularisation des populations ont-elles eu le succès escompté durant les dernières années ?

– Les zones de gestion prioritaires ont-elles déjà été définies ? Dans l’affirmative, Madame la Ministre peut-elle fournir des informations supplémentaires sur la localisation de ces zones, les objectifs et méthodes de régulation choisies ?

– Des conventions pour une exploitation commerciale, telles que prévues par le plan d’action, ont-elles déjà pu être signées avec des restaurateurs ? »

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