Erakordselt k\u00fclm talv ja ulatuslik j\u00e4\u00e4kate merel ei t\u00e4henda automaatselt, et suvine sinivetikate vohamine sel aastal \u00e4ra v\u00f5iks j\u00e4\u00e4da. K\u00fcll aga m\u00f5jutavad praegused meretingimused teisi suuremaid vetikaliike.<\/p>\n
Merevesi on sel talvel erakordselt madal ning praeguseks on ligi veerand L\u00e4\u00e4nemerest j\u00e4\u00e4tunud. See pole aga piisav, et meri sel suvel sinivetikatest vaba oleks, sest vetikad tahavad toitaineid, tuulevaikust ja sooja vett.<\/p>\n
“Kui meil on toitaineid, kui meil on fosforit piisavalt, on tuulevaikne ilm juulis kaks n\u00e4dalat ja pinnavee temperatuur on \u00fcle 15 kraadi keset merd, siis hakkab sinivetikas vohama,” \u00fctles Tartu \u00fclikooli merebioloogia professor Georg Martin.<\/p>\n
Teisalt on praegune olukord keerulisem teistele v\u00f5tmet\u00e4htsusega liikidele. N\u00e4iteks p\u00f5isadru v\u00f5ib kannatada liikuvate j\u00e4\u00e4pankade t\u00f5ttu.<\/p>\n
“J\u00e4\u00e4 v\u00f5ib kraapida merep\u00f5hja \u00fcsna s\u00fcgavale. Meie oleme registreerinud oma uuringutes, et kolm-neli meetrit v\u00f5ivad olla need j\u00e4\u00e4pankade liikumise j\u00e4ljed seal merep\u00f5hjas. Ehk siis, kui n\u00fc\u00fcd selline j\u00e4\u00e4kamakas tuleb \u00fcle selle vetikakoosluse, siis ta nagu buldooser l\u00fckkab selle k\u00f5ik sealt p\u00f5hja k\u00fcljest lahti,” r\u00e4\u00e4kis Martin.<\/p>\n
P\u00f5isadru on praegu paksu lumekaane all ja saab ilmselt natuke kahjustada.<\/p>\n
“P\u00f5hiliselt tema ongi v\u00f5tmeliik, sest ta loob p\u00e4ris korralikud ja t\u00e4htsad elupaigad teistele organismidele,” m\u00e4rkis Taltechi mere\u00f6koloogia teadur Ivan Kuprijanov. “N\u00e4iteks igasugustele selgrootutele ja teistele vetikaliikidele. Kui see substraat kaob neile, siis p\u00f5hiliselt nad l\u00fclituvad teistele elupaikadele ja nende organismide populatsioon natuke kahaneb.”<\/p>\n
Samamoodi kahjustab madal vesi ja paks j\u00e4\u00e4kate ka meriheina, samas ei ole need kahjustused p\u00f6\u00f6rdumatud.<\/p>\n
“Kui need f\u00fc\u00fcsikalised tegurid enam ei esine, siis sellised\u00a0 kasvualad taastuvad, ma arvan, et paari aastaga, kui j\u00e4rgmine talv ei ole niisugune karm ka nagu seal see aasta,” s\u00f5nas Kuprijanov.<\/p>\n
“\u00dcldist suurt katastroofi sellest loomulikult ei teki, see j\u00e4\u00e4 on suhteliselt loomulik asi siin meie tingimustes ja L\u00e4\u00e4nemeres. Tegelikult see talv meil k\u00fcll praegu tundub, et on j\u00f5le k\u00fclm, aga tegelikult niimoodi saja aasta peale vaatame, siis on ta niisugune enam-v\u00e4hem keskmine,” lisas Martin.<\/p>\n","protected":false},"excerpt":{"rendered":"Erakordselt k\u00fclm talv ja ulatuslik j\u00e4\u00e4kate merel ei t\u00e4henda automaatselt, et suvine sinivetikate vohamine sel aastal \u00e4ra v\u00f5iks…\n","protected":false},"author":2,"featured_media":103691,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","_share_on_mastodon":"0"},"categories":[12],"tags":[7398,26,27,37,33,35,34,36,31,32,21,28,29,19,25,49748,23,24,22,20,49749,30],"class_list":["post-103690","post","type-post","status-publish","format-standard","has-post-thumbnail","category-eesti","tag-bioloogia","tag-breaking-news","tag-breakingnews","tag-ee","tag-eesti","tag-eesti-keel","tag-estonia","tag-estonian","tag-featured-news","tag-featurednews","tag-headlines","tag-latest-news","tag-latestnews","tag-news","tag-populaarseimad-lood","tag-sinivetikas","tag-top-stories","tag-topstories","tag-uldised-uudised","tag-uudised","tag-vetikad","tag-viimased-uudised"],"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@ee\/116036708806358655","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/103690","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/comments?post=103690"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/posts\/103690\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media\/103691"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/media?parent=103690"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/categories?post=103690"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/ee\/wp-json\/wp\/v2\/tags?post=103690"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}