{"id":15917,"date":"2024-07-31T16:45:10","date_gmt":"2024-07-31T20:45:10","guid":{"rendered":"https:\/\/www.dunany.ca\/?p=15917"},"modified":"2024-07-31T17:49:05","modified_gmt":"2024-07-31T21:49:05","slug":"yes-we-have-found-chinese-mystery-snails-in-our-lakes-but-their-presence-does-not-pose-serious-problems-now-heres-why","status":"publish","type":"post","link":"https:\/\/www.dunany.ca\/en\/yes-we-have-found-chinese-mystery-snails-in-our-lakes-but-their-presence-does-not-pose-serious-problems-now-heres-why\/15917","title":{"rendered":"Yes, we have found Chinese Mystery Snails in our lakes. But their Presence does not Pose Serious Problems Now. Here’s why."},"content":{"rendered":"\n

Before answering the question, some context is necessary.<\/p>\n\n\n

\n
\"\"\n\t\t\t\n\t\t\t\t\n\t\t\t<\/svg>\n\t\t<\/button>
Chinese Mystery Snail<\/figcaption><\/figure>\n<\/div>\n\n\n

In early July, we were informed of the presence of snails at Black Lake, most likely Chinese Mystery Snails. To find out for sure, we called on a biologist from the MRC d’Argenteuil to ensure that they were indeed Chinese Mystery Snails, an exotic and invasive mollusc.<\/p>\n\n\n\n

This confirmation obtained, checks in the three other lakes of Dunany revealed their presence there.<\/p>\n\n\n\n

They have been recorded in several sites, near the banks where the water is shallow and calm. Testimonies confirm that they have been in our lakes for several decades. Moreover, during the annual general meeting on July 28, almost all the members present said they had always seen them in their lake.<\/p>\n\n\n\n

So, why are these snails not very invasive in our environment?<\/p>\n\n\n\n

Chinese Mystery Snails develop where the water is calm and shallow. But, as the average depth of our lakes ranges from 5 to 10 meters, the surface area of \u200b\u200bour lakes available for these snails is very limited.<\/p>\n\n\n\n

In addition, pieces of shells observed in certain places show that they are the joy of several predators such as herons and otters who delight in them.<\/p>\n\n\n\n

In short, our lakes seem to have adapted to the presence of these snails so that they do not constitute a problem at this time, as it can often be the case in the numerous shallow lakes (average of less than 2 meters) created by the damning of rivers or creeks.<\/p>\n\n\n\n

\"\"\n\t\t\t\n\t\t\t\t\n\t\t\t<\/svg>\n\t\t<\/button>
Peaceful spring moment at Clear Lake.<\/figcaption><\/figure>\n\n\n\n

If you read my last report on the state of our lake<\/a>s, you know that they are in good health. You may recall that the Boyd Lake results were intriguing. However, we have received the results of the June 2024 sampling \u2013 the first of three \u2013 where all the lakes, including Boyd, display phosphorus levels which place them comfortably in the oligotrophic (very good) category.<\/p>\n\n\n\n

Nevertheless, the Association will ensure constant vigilance to ensure that the situation remains stable.<\/p>\n\n\n\n

These snails are now found in hundreds lakes in Quebec, as elsewhere in Canada. This is hardly surprising given that they were imported in large quantities as very effective aquarium cleaners. Then, in the 40s, they were deliberately discharged in shallow Lake Erie to provide food for fish. It was enough to contaminate the St. Lawrence.<\/p>\n\n\n\n

Your questions and comments are always welcome.<\/p>\n","protected":false},"excerpt":{"rendered":"

Before answering the question, some context is necessary. In early July, we were informed of the presence of snails at Black Lake, most likely Chinese Mystery Snails. To find out for sure, we called on a biologist from the MRC… <\/p>\n","protected":false},"author":2,"featured_media":15880,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[15],"tags":[],"class_list":["post-15917","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-association"],"_links":{"self":[{"href":"https:\/\/www.dunany.ca\/en\/wp-json\/wp\/v2\/posts\/15917","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dunany.ca\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dunany.ca\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dunany.ca\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dunany.ca\/en\/wp-json\/wp\/v2\/comments?post=15917"}],"version-history":[{"count":17,"href":"https:\/\/www.dunany.ca\/en\/wp-json\/wp\/v2\/posts\/15917\/revisions"}],"predecessor-version":[{"id":15956,"href":"https:\/\/www.dunany.ca\/en\/wp-json\/wp\/v2\/posts\/15917\/revisions\/15956"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dunany.ca\/en\/wp-json\/wp\/v2\/media\/15880"}],"wp:attachment":[{"href":"https:\/\/www.dunany.ca\/en\/wp-json\/wp\/v2\/media?parent=15917"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dunany.ca\/en\/wp-json\/wp\/v2\/categories?post=15917"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dunany.ca\/en\/wp-json\/wp\/v2\/tags?post=15917"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}