{"id":12025,"date":"2022-07-22T08:21:03","date_gmt":"2022-07-22T08:21:03","guid":{"rendered":"https:\/\/haberulus.net\/?p=12025"},"modified":"2022-07-22T08:21:03","modified_gmt":"2022-07-22T08:21:03","slug":"marmara-icin-tehlike-sinyali","status":"publish","type":"post","link":"https:\/\/haberulus.net\/?p=12025","title":{"rendered":"Marmara i\u00e7in tehlike sinyali"},"content":{"rendered":"

\u0130stanbul \u00dcniversitesi taraf\u0131ndan Marmara Denizi’nde yap\u0131lan ara\u015ft\u0131rmada, organik kirlili\u011fi seven denizkestanesi t\u00fcr\u00fcnde a\u015f\u0131r\u0131 art\u0131\u015f oldu\u011fu tespit edildi.<\/b><\/p>\n

Marmara Denizi\u2019nde ekosistemi dengede tutan denizkestanelerinin \u00e7o\u011fald\u0131\u011f\u0131 tespit edildi.<\/p>\n

Bir k\u0131sm\u0131 veya tamam\u0131 su i\u00e7inde ya\u015fayan, suda serbest y\u00fczen ve \u00e7\u0131plak g\u00f6zle g\u00f6r\u00fclebilecek b\u00fcy\u00fckl\u00fc\u011fe sahip, y\u00fcksek yap\u0131l\u0131 su bitkileri olan makrofitlerin art\u0131\u015f\u0131n\u0131 kontrol alt\u0131nda tutan denizkestaneleri, su alt\u0131ndaki oksijen ak\u0131\u015f\u0131n\u0131n dengesini de sa\u011fl\u0131yor.<\/p>\n

\u0130stanbul \u00dcniversitesi taraf\u0131ndan haziran ay\u0131nda Marmara Denizi\u2019nde ger\u00e7ekle\u015ftirilen seferde denizkestanelerinin \u00e7o\u011fald\u0131\u011f\u0131 ortaya \u00e7\u0131kt\u0131.<\/p>\n

\"\"<\/p>\n

\u201cDEN\u0130ZKESTANELER\u0130N\u0130N FAZLA OLMASI ALGLER\u0130N AZALMASINA NEDEN OLUR\u201d<\/strong><\/p>\n

\u0130stanbul \u00dcniversitesi Bal\u0131k\u00e7\u0131l\u0131k ve Su \u00dcr\u00fcnleri \u0130\u015fleme Teknolojisi B\u00f6l\u00fcm\u00fc, Bal\u0131k\u00e7\u0131l\u0131k Teknolojisi ve Y\u00f6netimi Anabilim Dal\u0131 Ba\u015fkan\u0131 Prof. Dr. Firdes Saadet Karakulak, denizkestanelerinin Marmara Denizi\u2019ndeki \u00f6nemine de\u011finerek, \u015f\u00f6yle konu\u015ftu:<\/p>\n

*Denizkestanesi \u00f6zellikle bentik b\u00f6lge dedi\u011fimiz deniz dibinde ya\u015fayan bir canl\u0131. Daha \u00e7ok alglerle beslenen di\u011fer bal\u0131klar\u0131n da besinini olu\u015fturan bir canl\u0131.<\/p>\n

*Bu canl\u0131lar asl\u0131nda suyu s\u00fczerek beslenme e\u011filimi g\u00f6sterirler. T\u00fcrkiye denizlerinde 20\u2019ye yak\u0131n denizkestanesi t\u00fcr\u00fc var. Marmara Denizi\u2019nde 18 tane t\u00fcr var.<\/p>\n

*Her biri farkl\u0131 \u00f6zelli\u011fe sahip. Ticareti yap\u0131lan Paracentrotus lividus t\u00fcr\u00fc, oksijeni bol olan denizlerde daha \u00e7ok bulunur.<\/p>\n

*Onun oldu\u011fu b\u00f6lgeleri temiz b\u00f6lge olarak isimlendirebiliriz. Ama \u0130stanbul\u2019da, Brissopsis lyrifera t\u00fcrler ise; organik kirlili\u011fin yo\u011fun oldu\u011fu yerlerde a\u015f\u0131r\u0131 \u00e7o\u011falma e\u011filimi g\u00f6sterir.<\/p>\n

\"\"<\/p>\n

*Her bir t\u00fcr, bize o deniz hakk\u0131nda bilgiler verebiliyor. \u0130klim de\u011fi\u015fikli\u011finin etkisi de var, bununla birlikte denizlerde de asitle\u015fme s\u00f6z konusu. Bu t\u00fcm deniz canl\u0131lar\u0131n\u0131 etkilemekte.<\/p>\n

*Mercanlar, denizkestaneleri de bu durumdan etkileniyorlar. Dolay\u0131s\u0131yla pop\u00fclasyonlar\u0131nda bir azalma var.<\/p>\n

*\u00d6zellikle Marmara Denizi hassas bir deniz, m\u00fcsilaj olu\u015fumlar\u0131 var. M\u00fcsilaj olu\u015fumunda biliyorsunuz di\u011fer deniz canl\u0131lar\u0131n etkisi olabiliyor.<\/p>\n

*Biz bu alglerin a\u015f\u0131r\u0131 \u00e7o\u011falmas\u0131n\u0131 engellememiz i\u00e7in mutlaka denizkestanesinin avc\u0131l\u0131\u011f\u0131n\u0131n Marmara Denizi\u2019nde yap\u0131lmamas\u0131 laz\u0131m.<\/p>\n

*Denizkestanesinin az olmas\u0131 alglerin a\u015f\u0131r\u0131 \u00e7o\u011falmas\u0131na, denizkestanelerinin fazla olmas\u0131 alglerin azalmas\u0131na neden olur.<\/p>\n

*Bu dengenin sa\u011flanmas\u0131 laz\u0131m. Denizkestanesi ile beslenen bal\u0131klarda da a\u015f\u0131r\u0131 avc\u0131l\u0131\u011f\u0131n yap\u0131lmamas\u0131 gerekiyor.<\/p>\n

\u201cDEN\u0130ZKESTANES\u0130NDE A\u015eIRI B\u0130R ARTI\u015e S\u00d6Z KONUSU\u201d<\/strong><\/p>\n

*Ge\u00e7en ay Marmara Denizi\u2019nin seferini ger\u00e7ekle\u015ftirdik, \u015fu an ekosistemde bir canl\u0131l\u0131k var. Ge\u00e7en ay Marmara Denizi\u2019nde Oksijeni seven denizkestanesinde (Paracentrotus lividus) bir art\u0131\u015f s\u00f6z konusu.<\/p>\n

*Di\u011fer organik kirlili\u011fi seven denizkestanesinde de (Brissopsis lyrifera) a\u015f\u0131r\u0131 bir art\u0131\u015f var. Bu durum biyo\u00e7e\u015fitlili\u011fi de\u011fi\u015ftirebiliyor, biyo\u00e7e\u015fitlili\u011fi d\u00fc\u015f\u00fcrd\u00fc\u011f\u00fcn\u00fc g\u00f6rmekteyiz.<\/p>\n

*Bal\u0131k t\u00fcrlerinde bir azalma s\u00f6z konusu. Her bir t\u00fcr\u00fcn dengede olmas\u0131 laz\u0131m. Bu iyi bir durum de\u011fil.<\/p>\n

\u201cBU DURUM M\u00dcS\u0130LAJI TET\u0130KLEYEB\u0130L\u0130R\u201d<\/strong><\/p>\n

Band\u0131rma Onyedi Eyl\u00fcl \u00dcniversitesi Denizcilik Fak\u00fcltesi Dekan\u0131 Prof. Dr. Mustafa Sar\u0131 ise,
\u015f\u00f6yle konu\u015ftu:<\/p>\n

*Makrofitlerin a\u015f\u0131r\u0131 \u00e7o\u011falmas\u0131 nedeniyle denizde oksijensiz alanlar olu\u015fabilece\u011fini belirterek, \u201cDenizkestanelerinin say\u0131s\u0131 azald\u0131\u011f\u0131 zaman makrofitler \u00e7o\u011falm\u0131\u015f olurlar.<\/p>\n

*Bunlar\u0131n \u00e7o\u011falmas\u0131 o b\u00f6lgedeki azotu, fosforu azalt\u0131r ama k\u0131y\u0131sal anlamda biyolojik \u00e7e\u015fitlili\u011fe ba\u011fl\u0131 olarak birtak\u0131m ekolojik olaylar\u0131n negatif etkiler ortaya \u00e7\u0131kmas\u0131na neden olur.<\/p>\n

*A\u015f\u0131r\u0131 alg \u00e7o\u011falmas\u0131 o b\u00f6lgede \u00fcretimden daha \u00e7ok oksijen t\u00fcketimine neden olaca\u011f\u0131 i\u00e7in \u00f6l\u00fc b\u00f6lgelerin ortaya \u00e7\u0131kmas\u0131na neden olur. Bu durum m\u00fcsilaj\u0131 tetikleyebilir. (DHA)<\/p>\n","protected":false},"excerpt":{"rendered":"

\u0130stanbul \u00dcniversitesi taraf\u0131ndan Marmara Denizi’nde yap\u0131lan ara\u015ft\u0131rmada, organik kirlili\u011fi seven denizkestanesi t\u00fcr\u00fcnde a\u015f\u0131r\u0131 art\u0131\u015f oldu\u011fu tespit …<\/p>\n","protected":false},"author":1,"featured_media":12026,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[3391,3390,158,527,748],"class_list":["post-12025","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gundem","tag-alg","tag-asiri","tag-bolge","tag-deniz","tag-tur"],"_links":{"self":[{"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/posts\/12025","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=12025"}],"version-history":[{"count":1,"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/posts\/12025\/revisions"}],"predecessor-version":[{"id":12027,"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/posts\/12025\/revisions\/12027"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=\/wp\/v2\/media\/12026"}],"wp:attachment":[{"href":"https:\/\/haberulus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=12025"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=12025"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/haberulus.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=12025"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}