{"id":6810,"date":"2016-02-14T23:28:08","date_gmt":"2016-02-14T12:28:08","guid":{"rendered":"https:\/\/www.babou-plongee.com\/blog\/blanchissement-corallien-a125060874\/"},"modified":"2016-02-14T23:28:08","modified_gmt":"2016-02-14T12:28:08","slug":"blanchissement-corallien-a125060874","status":"publish","type":"post","link":"https:\/\/www.babou-plongee.com\/blog\/blanchissement-corallien-a125060874\/","title":{"rendered":"Blanchissement corallien"},"content":{"rendered":"

Par babou, le 2016-02-14T10:22:00+01:00<\/p>\n

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Depuis 2003 notre centre participe au programme Reef Check \u00e0 travers le R\u00e9seau d\u2019Observation des R\u00e9cifs Coralliens de NC.<\/p>\n

A ce titre je me fais le relais de l’information ci-dessous.
N’h\u00e9sitez pas \u00e0 contacter Sandrine.<\/p>\n

\"Blanchissement<\/p>\n<\/td>\n<\/tr>\n

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\u00ab\u00a0L\u2019eau du lagon commen\u00e7ant s\u00e9v\u00e8rement \u00e0 se r\u00e9chauffer depuis quelque semaines, nous sommes en\u00a0\u00e9tat de risque maximal pour le blanchissement corallien<\/strong>.<\/em><\/div>\n
\u00a0<\/em><\/div>\n
Au travers de nos observations pour le RORC (R\u00e9seau d\u2019Observation des R\u00e9cifs Coralliens de NC), nous surveillons ce ph\u00e9nom\u00e8ne (jusqu\u2019\u00e0 la semaine derni\u00e8re aucun blanchissement observ\u00e9) mais ne pouvons pas \u00eatre partout et \u00e0 tous moments :\u00a0nous avons besoin de vous pour mieux quantifier le blanchissement \u00e9ventuel des r\u00e9cifs du caillou<\/strong>. Toutes nos\/vos observations seront transmises aux gestionnaires de l\u2019environnement.<\/em><\/div>\n
Pour rappel, le blanchissement du corail survient quand les conditions de temp\u00e9rature (trop \u00e9lev\u00e9e) ou de salinit\u00e9 (trop basse, suite \u00e0 des pluies diluviennes par exemple) ne sont plus bonnes pour le corail.\u00a0En r\u00e9ponse au stress environnemental, le corail expulse les algues micro-symbiotiques (zooxanthelles) contenues dans ses tissus. Les zooxanthelles participant \u00e0 donner sa couleur au corail, en leur absence, le corail devient blanc => on voit par transparence le squelette calcaire du corail.<\/em><\/div>\n
Comment \u00eatre s\u00fbr(e) de ce que vos observez?\u00a0Un r\u00e9cif peut devenir \u00ab\u00a0blanc\u00a0\u00bb pour plusieurs raisons :- stress environnemental- pr\u00e9dation par corallivores (Acanthaster planci ou autre)- maladie corallienne- abrasion\/\u00e9touffement.<\/em><\/div>\n
En pi\u00e8ce jointe quelques cl\u00e9s pour affiner votre jugement sur la cause de mortalit\u00e9. :<\/em><\/em><\/p>\n

T\u00e9l\u00e9charger \u00ab Blanchissement_Corail_PalaDalik.pdf \u00bb<\/a><\/strong><\/span><\/p>\n<\/div>\n

Merci de nous pr\u00e9venir si vous observez un ph\u00e9nom\u00e8ne de blanchissement par stress environnemental<\/strong>.<\/em><\/div>\n
\u00a0<\/em><\/div>\n
L\u2019id\u00e9al est de nous envoyer :- un point GPS ou le nom du r\u00e9cif + commune- la date- l\u2019\u00e9tendue du blanchissement (grosso modo : quelques coraux? plusieurs m\u00e8tres carr\u00e9s? plusieurs dizaines ou centaines de m\u00e8tres carr\u00e9s?)- une photo.<\/em><\/div>\n
Merci de faire circuler ce mail dans votre r\u00e9seau de plongeurs.<\/em>
En vous remerciant par avance de votre aide,<\/em>
Bien \u00e0 vous.\u00a0\u00bb<\/em><\/div>\n
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\"Blanchissement<\/em><\/p>\n<\/div>\n<\/td>\n<\/tr>\n

\u00a0<\/td>\n\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0<\/p>\n<\/p><\/div>\n<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"

Par babou, le 2016-02-14T10:22:00+01:00 Depuis 2003 notre centre participe au programme Reef Check \u00e0 travers le R\u00e9seau d\u2019Observation des R\u00e9cifs…<\/p>\n

Continue reading \"Blanchissement corallien\"<\/span>…<\/a><\/div>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","footnotes":""},"categories":[],"tags":[],"class_list":["post-6810","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/www.babou-plongee.com\/blog\/wp-json\/wp\/v2\/posts\/6810"}],"collection":[{"href":"https:\/\/www.babou-plongee.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.babou-plongee.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.babou-plongee.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.babou-plongee.com\/blog\/wp-json\/wp\/v2\/comments?post=6810"}],"version-history":[{"count":0,"href":"https:\/\/www.babou-plongee.com\/blog\/wp-json\/wp\/v2\/posts\/6810\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.babou-plongee.com\/blog\/wp-json\/wp\/v2\/media?parent=6810"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.babou-plongee.com\/blog\/wp-json\/wp\/v2\/categories?post=6810"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.babou-plongee.com\/blog\/wp-json\/wp\/v2\/tags?post=6810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}