{"id":7381,"date":"2021-04-01T10:11:25","date_gmt":"2021-04-01T08:11:25","guid":{"rendered":"https:\/\/dev.asleman.org\/?post_type=60_secondes&p=7381"},"modified":"2021-04-01T10:11:25","modified_gmt":"2021-04-01T08:11:25","slug":"n-78-la-folle-invasion-de-la-moue-quagga","status":"publish","type":"60_secondes","link":"https:\/\/asleman.org\/en\/60_secondes\/n-78-la-folle-invasion-de-la-moue-quagga\/","title":{"rendered":"No. 78: The mad invasion of the Quagga mussel (2\/2)"},"content":{"rendered":"

Remember the \ud835\udde0\ud835\uddfc\ud835\ude02\ud835\uddf9\ud835\uddf2 \ud835\uddfe\ud835\ude02\ud835\uddee\ud835\uddf4\ud835\uddf4\ud835\uddee? We introduced it to you last week. This mussel, which was rare in our region just a few years ago, is becoming increasingly popular. And with good reason! We told you about its extraordinary ability to adapt to different environments. We promised you the rest of its story, so here it is: <\/p>\n\n\n\n

The quagga can colonise around \ud835\ude01\ud835\uddfc\ud835\ude02\ud835\ude01\ud835\uddf2\ud835\ude00 \ud835\uddf9\ud835\uddf2\ud835\ude00 \ud835\ude00\ud835\ude02\ud835\uddff\ud835\uddf3\ud835\uddee\ud835\uddf0\ud835\uddf2\ud835\ude00 \ud835\uddf1\ud835\uddf6\ud835\ude00\ud835\uddfd\ud835\uddfc\ud835\uddfb\ud835\uddf6\ud835\uddef\ud835\uddf9\ud835\uddf2\ud835\ude00: from rocks to boat hulls, but also plant remains or \ud835\uddef\ud835\uddfc\ud835\ude02\ud835\uddf2! It does not need a solid substrate to attach itself. Several quagga can even \ud835\ude00'\ud835\uddee\ud835\uddf4\ud835\uddf4\ud835\uddf9\ud835\ude02\ud835\ude01\ud835\uddf6\ud835\uddfb\ud835\uddf2\ud835\uddff each other, giving them the ability to completely cover a space.<\/p>\n\n\n\n

Unfortunately, its abundance has \ud835\uddf6\ud835\uddfa\ud835\uddfd\ud835\uddee\ud835\uddf0\ud835\ude01\ud835\ude00 \ud835\uddf2\u0301\ud835\uddf0\ud835\uddfc\ud835\uddfb\ud835\uddfc\ud835\uddfa\ud835\uddf6\ud835\uddfe\ud835\ude02\ud835\uddf2\ud835\ude00 \ud835\uddf2\ud835\ude01 \ud835\uddf2\u0301\ud835\uddf0\ud835\uddfc\ud835\uddf9\ud835\uddfc\ud835\uddf4\ud835\uddf6\ud835\uddfe\ud835\ude02\ud835\uddf2\ud835\ude00 \ud835\ude01\ud835\uddff\ud835\uddf2\u0300\ud835\ude00 \ud835\uddf4\ud835\uddff\ud835\uddee\ud835\ude03\ud835\uddf2\ud835\ude00. <\/p>\n\n\n\n

As it settles everywhere, it generates \ud835\uddf1\ud835\uddf2\u0301\ud835\uddf4\ud835\uddee\u0302\ud835\ude01\ud835\ude00 \ud835\uddf6\ud835\uddfa\ud835\uddfd\ud835\uddfc\ud835\uddff\ud835\ude01\ud835\uddee\ud835\uddfb\ud835\ude01 for \ud835\ude01\ud835\uddff\ud835\uddee\ud835\uddf6\ud835\ude01\ud835\uddf2\ud835\uddfa\ud835\uddf2\ud835\uddfb\ud835\ude01 \ud835\uddf1\ud835\uddf2 \ud835\uddf9'\ud835\uddf2\ud835\uddee\ud835\ude02 or drinking water pumping installations, as it clogs the pipes. It also disturbs turbines or \ud835\uddf3\ud835\uddf6\ud835\uddf9\ud835\uddf2\ud835\ude01\ud835\ude00 \ud835\uddf1\ud835\uddf2 \ud835\uddfd\ud835\uddf2\u0302\ud835\uddf0\ud835\uddf5\ud835\uddf2\ud835\ude02\ud835\uddff\ud835\ude00 and can sink boundary or mooring buoys by catching on them. All this infrastructure has to be cleaned frequently, which generates \ud835\uddf0\ud835\uddfc\ud835\ude02\u0302\ud835\ude01\ud835\ude00 \ud835\uddf2\u0301\ud835\uddfb\ud835\uddfc\ud835\uddff\ud835\uddfa\ud835\uddf2\ud835\ude00. <\/p>\n\n\n\n

But it's even more serious than that! Being highly prolific, it threatens native species and biodiversity: it attaches itself to \ud835\uddf1'\ud835\uddee\ud835\ude02\ud835\ude01\ud835\uddff\ud835\uddf2\ud835\ude00 \ud835\uddef\ud835\uddf6\ud835\ude03\ud835\uddee\ud835\uddf9\ud835\ude03\ud835\uddf2\ud835\ude00 \ud835\uddfc\ud835\ude02 \ud835\uddf0\ud835\uddff\ud835\ude02\ud835\ude00\ud835\ude01\ud835\uddee\ud835\uddf0\ud835\uddf2\u0301\ud835\ude00, preventing them from feeding, breathing or digging shelter : certain species of bivalves are therefore increasingly \ud835\uddff\ud835\uddee\ud835\uddff\ud835\uddf2\ud835\ude00 in Lake Geneva. It also takes \ud835\uddf9\ud835\uddee \ud835\uddfd\ud835\uddf9\ud835\uddee\ud835\uddf0\ud835\uddf2 \ud835\uddf1'\ud835\uddee\ud835\ude02\ud835\ude01\ud835\uddff\ud835\uddf2\ud835\ude00 \ud835\uddf2\ud835\ude00\ud835\uddfd\ud835\uddf2\u0300\ud835\uddf0\ud835\uddf2\ud835\ude00 that might settle in the same places as it does. <\/p>\n\n\n\n

The presence of the Quagga Mussel has a few advantages: it serves as \ud835\uddfb\ud835\uddfc\ud835\ude02\ud835\uddff\ud835\uddff\ud835\uddf6\ud835\ude01\ud835\ude02\ud835\uddff\ud835\uddf2 for fish and some diving birds. It can also be used \ud835\uddf1'\ud835\uddf5\ud835\uddee\ud835\uddef\ud835\uddf6\ud835\ude01\ud835\uddee\ud835\ude01 for small crustaceans, such as gammarids. What's more, it filters water very well and helps to improve the \ud835\ude01\ud835\uddff\ud835\uddee\ud835\uddfb\ud835\ude00\ud835\uddfd\ud835\uddee\ud835\uddff\ud835\uddf2\ud835\uddfb\ud835\uddf0\ud835\uddf2 \ud835\uddf1\ud835\uddf2 \ud835\uddf9'\ud835\uddf2\ud835\uddee\ud835\ude02, encouraging plant growth deep down.<\/p>\n\n\n\n

The Moule quagga is \ud835\ude02\ud835\uddfb\ud835\uddf2 \ud835\uddf2\ud835\ude00\ud835\uddfd\ud835\uddf2\u0300\ud835\uddf0\ud835\uddf2 \ud835\uddf6\ud835\uddfb\ud835\ude03\ud835\uddee\ud835\ude00\ud835\uddf6\ud835\ude03\ud835\uddf2, so monitored, but unfortunately cannot be eliminated from the waterholes it has already invaded. On the other hand, it is essential to \ud835\uddfd\ud835\uddff\ud835\uddfc\ud835\ude01\ud835\uddf2\u0301\ud835\uddf4\ud835\uddf2\ud835\uddff \ud835\uddf9\ud835\uddf2\ud835\ude00 \ud835\uddfd\ud835\uddf9\ud835\uddee\ud835\uddfb\ud835\ude00 \ud835\uddf1'\ud835\uddf2\ud835\uddee\ud835\ude02 which have not yet been colonised. <\/p>\n\n\n\n

First and foremost, it is essential that lake users (sailors, paddlers, divers, etc.) are aware of the importance of the lakes.) \ud835\uddfb\ud835\uddf2\ud835\ude01\ud835\ude01\ud835\uddfc\ud835\uddf6\ud835\uddf2\ud835\uddfb\ud835\ude01 \ud835\uddef\ud835\uddf6\ud835\uddf2\ud835\uddfb \ud835\uddf9\ud835\uddf2\ud835\ude02\ud835\uddff \ud835\uddfa\ud835\uddee\ud835\ude01\ud835\uddf2\u0301\ud835\uddff\ud835\uddf6\ud835\uddf2\ud835\uddf9 \ud835\uddfc\ud835\ude02 \ud835\uddf9\ud835\uddf2\ud835\ude02\ud835\uddff \ud835\uddf2\ud835\uddfa\ud835\uddef\ud835\uddee\ud835\uddff\ud835\uddf0\ud835\uddee\ud835\ude01\ud835\uddf6\ud835\uddfc\ud835\uddfb when moving from one body of water to another, to avoid transporting mussel larvae or other invasive species. <\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Information taken from L\u00e9maniques n\u00b0113 <\/a>and the CIPEL<\/a><\/p>\n\n\n\n

Photo credit: Net'L\u00e9man - ASL and Pascal Mulattieri<\/p>","protected":false},"featured_media":7382,"template":"","mots-cles":[],"class_list":["post-7381","60_secondes","type-60_secondes","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/asleman.org\/en\/wp-json\/wp\/v2\/60_secondes\/7381","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/asleman.org\/en\/wp-json\/wp\/v2\/60_secondes"}],"about":[{"href":"https:\/\/asleman.org\/en\/wp-json\/wp\/v2\/types\/60_secondes"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/asleman.org\/en\/wp-json\/wp\/v2\/media\/7382"}],"wp:attachment":[{"href":"https:\/\/asleman.org\/en\/wp-json\/wp\/v2\/media?parent=7381"}],"wp:term":[{"taxonomy":"mots-cles","embeddable":true,"href":"https:\/\/asleman.org\/en\/wp-json\/wp\/v2\/mots-cles?post=7381"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}