EFSA reviews apple snail threat
EFSA has reviewed the current scientific literature on the biology and ecology of the apple snail (Pomacea maculata and P.canaliculata), and refined its assessment of the potential for establishment of the snail in the EU.
The latest EFSA opinion follows a previous piece of work, published in 2012, which used a preliminary climate matching exercise to identify which parts of Europe are suitable for the establishment of the apple snail. The new opinion uses a populationCommunity of humans, animals or plants from the same species dynamics model to calculate more precisely the potentially endangered area in terms of snail distribution and density. It concludes that the at-risk area is confined to southern Europe – Spain, southern France, most of Italy, Greece, and the Balkans up to the latitude of the Danube river.
The apple snail, one of the largest freshwater snails, is a serious rice pestA living organism (e.g. an insect, rodent, weed, fungus or virus) that is harmful to plants and/or their products (e.g. seeds, fruits) that can devastate the flora and fauna of natural wetlands. In 2010 the organismA living thing such as humans, animals, plants and microbes (e.g. bacteria, viruses) invaded rice fields in the Ebro Delta in Spain. Before then, it was not known to occur in the EU and was not regulated.
The Scientific Opinion is a precursor to a full environmental risk assessmentThe process of assessing potential harm to the environment caused by a substance, activity or natural occurrence. This may include the introduction of GM plants, the use of pesticides, or the spread of plant pests of the apple snail in the EU, to be published by EFSA in 2014.