{"id":10640,"date":"2022-01-20T13:13:51","date_gmt":"2022-01-20T12:13:51","guid":{"rendered":"https:\/\/zeleni-prsten.hr\/web\/?p=10640"},"modified":"2022-02-20T17:32:05","modified_gmt":"2022-02-20T16:32:05","slug":"istrazivanje-crnke","status":"publish","type":"post","link":"https:\/\/zeleni-prsten.hr\/portal\/istrazivanje-crnke\/","title":{"rendered":"Istra\u017eivanje crnke"},"content":{"rendered":"<p>Jedno od najzanimljivijih istra\u017eivanja koje smo proveli u 2021. godini je istra\u017eivanje globalno ugro\u017eene vrste ribe, crnke (<em>Umbra krameri<\/em>) u rijeci Odri i vodotocima \u0161ume \u017dutica. Istra\u017eivanje je provela tvrtka BIOTA j.d.o.o. koja zapo\u0161ljava brojan tim ihtiologa. U Hrvatskoj je ova vrsta&nbsp; rasprostranjena to\u010dkasto u vodama crnomorskog slijeva, najvi\u0161e vezana uz rijeke Dravu i Muru te Lonjsko polje, \u0161umu \u017dutica i dijelove Turopolja. Nastanjuje sporoteku\u0107e ili staja\u0107e vode muljevitog dna s bistrom i \u010distom vodom bogatom vegetacijom. U nizinskim podru\u010djima ovakve vode visoke kvalitete i bistrine nalazimo samo na mjestima visoke zasjenjenosti (omogu\u0107uje da voda ostane hladna i tijekom ljeta) i gdje postoji velika biofiltracija (podzemno kroz naslage \u0161ljunka te nadzemno kroz bogatu vegetaciju). Uz takve vodene povr\u0161ine \u010desto se ve\u017ee gusta vodena vegetacija i povremeno niska razina otopljenog kisika ili su\u0161ni periodi koje ova vrsta pre\u017eivljava pomo\u0107u prokrvljena mjehura koji joj omogu\u0107uje apsorpciju kisika iz atmosferskog zraka. Uglavnom ne prelaze du\u017einu od 10 cm i masu od 8 grama, a najve\u0107a zabilje\u017eena jedinka bila je duga\u010dka 17 cm.<\/p>\n<p>Istra\u017eivanjem su obi\u0111ena 52 lokaliteta od kojih je na njih 31 utvr\u0111ena prisutnost riba. Od toga je na njih 6 utvr\u0111ena prisutnost crnke. Ukupno je zabilje\u017eeno 17 vrsta ribe, 13 zavi\u010dajnih te 4 invazivne strane vrste (sun\u010danica, babu\u0161ka, bezribica te crni somi\u0107).&nbsp;&nbsp;Od zavi\u010dajnih vrsta, osim crnke, svojim zna\u010dajem najvi\u0161e se isti\u010du strogo za\u0161ti\u0107ene i ugro\u017eene vrste belica (<em>Leucaspius delineatus<\/em>) i pi\u0161kur (<em>Misgurnus fossilis<\/em>).<\/p>\n<p>Prema rezultatima istra\u017eivanja i procjeni stru\u010dnjaka, populacija crnke u rijeci Odri i pritokama spada u tri najbrojnije poznate populacije na svijetu te \u010dini vi\u0161e od 15% nacionalne populacije. Na lokalitetu je zabilje\u017eeno i vi\u0161e faktora koji ugro\u017eavaju vrstu od kojih su najzna\u010dajniji invazivne strane vrste riba, isu\u0161ivanje vodotoka, zatrpavanje vodnih tijela te one\u010di\u0161\u0107enje. S obzirom na va\u017enost ovog lokaliteta za vrstu i \u010dinjenicu da se rijeka Odra kod Jagodna ve\u0107 nalazi u ekolo\u0161koj mre\u017ei Natura 2000, pokrenut je postupak uvr\u0161tavanja crnke kao ciljne vrste podru\u010dja te \u0107e se planom upravljanja za podru\u010dje predvidjeti aktivnosti koje su potrebne za njeno o\u010duvanje.<\/p>\n<p><a href=\"http:\/\/zeleni-prsten.hr\/web\/wp-content\/uploads\/2022\/01\/Crnka-Dusan-Jeli\u0107-2-Medium.jpg\"><img loading=\"lazy\" class=\"alignleft size-medium wp-image-10641\" src=\"http:\/\/zeleni-prsten.hr\/web\/wp-content\/uploads\/2022\/01\/Crnka-Dusan-Jeli\u0107-2-Medium-200x133.jpg\" alt=\"\" width=\"200\" height=\"133\"><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jedno od najzanimljivijih istra\u017eivanja koje smo proveli u 2021. godini je istra\u017eivanje globalno ugro\u017eene vrste ribe, crnke (Umbra krameri) u rijeci Odri i vodotocima \u0161ume \u017dutica. Istra\u017eivanje je provela tvrtka BIOTA j.d.o.o. koja zapo\u0161ljava brojan tim ihtiologa. U Hrvatskoj je [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":10786,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0},"categories":[59],"tags":[281,269,65,67,147,283,285,145,77,79,81],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v18.4.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Istra\u017eivanje crnke - JU Zeleni prsten Zagreba\u010dke \u017eupanije<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zeleni-prsten.hr\/portal\/istrazivanje-crnke\/\" \/>\n<meta property=\"og:locale\" content=\"hr_HR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Istra\u017eivanje crnke - JU Zeleni prsten Zagreba\u010dke \u017eupanije\" \/>\n<meta property=\"og:description\" content=\"Jedno od najzanimljivijih istra\u017eivanja koje smo proveli u 2021. godini je istra\u017eivanje globalno ugro\u017eene vrste ribe, crnke (Umbra krameri) u rijeci Odri i vodotocima \u0161ume \u017dutica. Istra\u017eivanje je provela tvrtka BIOTA j.d.o.o. koja zapo\u0161ljava brojan tim ihtiologa. U Hrvatskoj je [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zeleni-prsten.hr\/portal\/istrazivanje-crnke\/\" \/>\n<meta property=\"og:site_name\" content=\"JU Zeleni prsten Zagreba\u010dke \u017eupanije\" \/>\n<meta property=\"article:published_time\" content=\"2022-01-20T12:13:51+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-02-20T16:32:05+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/zeleni-prsten.hr\/portal\/wp-content\/uploads\/2022\/01\/Crnka-Dusan-Jeli\u0107-2-Medium-768x512.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"768\" \/>\n\t<meta property=\"og:image:height\" content=\"512\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Napisao\/la\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u017deljka \u0160abari\u0107\" \/>\n\t<meta name=\"twitter:label2\" content=\"Procijenjeno vrijeme \u010ditanja\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/zeleni-prsten.hr\/portal\/#website\",\"url\":\"https:\/\/zeleni-prsten.hr\/portal\/\",\"name\":\"JU Zeleni prsten Zagreba\u010dke \u017eupanije\",\"description\":\"JU Zeleni prsten Zagreba\u010dke \u017eupanije\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/zeleni-prsten.hr\/portal\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"hr\"},{\"@type\":\"ImageObject\",\"@id\":\"https:\/\/zeleni-prsten.hr\/portal\/istrazivanje-crnke\/#primaryimage\",\"inLanguage\":\"hr\",\"url\":\"https:\/\/zeleni-prsten.hr\/portal\/wp-content\/uploads\/2022\/01\/Crnka-Dusan-Jeli\u0107-2-Medium-768x512.jpg\",\"contentUrl\":\"https:\/\/zeleni-prsten.hr\/portal\/wp-content\/uploads\/2022\/01\/Crnka-Dusan-Jeli\u0107-2-Medium-768x512.jpg\",\"width\":768,\"height\":512},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zeleni-prsten.hr\/portal\/istrazivanje-crnke\/#webpage\",\"url\":\"https:\/\/zeleni-prsten.hr\/portal\/istrazivanje-crnke\/\",\"name\":\"Istra\u017eivanje crnke - JU Zeleni prsten Zagreba\u010dke \u017eupanije\",\"isPartOf\":{\"@id\":\"https:\/\/zeleni-prsten.hr\/portal\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/zeleni-prsten.hr\/portal\/istrazivanje-crnke\/#primaryimage\"},\"datePublished\":\"2022-01-20T12:13:51+00:00\",\"dateModified\":\"2022-02-20T16:32:05+00:00\",\"author\":{\"@id\":\"https:\/\/zeleni-prsten.hr\/portal\/#\/schema\/person\/055e03bf54bb9f1861485d75b692e69e\"},\"breadcrumb\":{\"@id\":\"https:\/\/zeleni-prsten.hr\/portal\/istrazivanje-crnke\/#breadcrumb\"},\"inLanguage\":\"hr\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zeleni-prsten.hr\/portal\/istrazivanje-crnke\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zeleni-prsten.hr\/portal\/istrazivanje-crnke\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/zeleni-prsten.hr\/portal\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Istra\u017eivanje crnke\"}]},{\"@type\":\"Person\",\"@id\":\"https:\/\/zeleni-prsten.hr\/portal\/#\/schema\/person\/055e03bf54bb9f1861485d75b692e69e\",\"name\":\"\u017deljka \u0160abari\u0107\",\"url\":\"https:\/\/zeleni-prsten.hr\/portal\/author\/zeljka\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Istra\u017eivanje crnke - JU Zeleni prsten Zagreba\u010dke \u017eupanije","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/zeleni-prsten.hr\/portal\/istrazivanje-crnke\/","og_locale":"hr_HR","og_type":"article","og_title":"Istra\u017eivanje crnke - JU Zeleni prsten Zagreba\u010dke \u017eupanije","og_description":"Jedno od najzanimljivijih istra\u017eivanja koje smo proveli u 2021. godini je istra\u017eivanje globalno ugro\u017eene vrste ribe, crnke (Umbra krameri) u rijeci Odri i vodotocima \u0161ume \u017dutica. 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