{"id":26132,"date":"2018-02-22T16:38:17","date_gmt":"2018-02-22T15:38:17","guid":{"rendered":"https:\/\/opistobranquis.info\/?page_id=26132"},"modified":"2026-11-05T09:04:12","modified_gmt":"2026-11-05T08:04:12","slug":"oxynooidea","status":"publish","type":"page","link":"https:\/\/opistobranquis.info\/ca\/guia\/sacoglossa\/oxynooidea\/","title":{"rendered":"Oxynooidea"},"content":{"rendered":"<p>Els Oxynooidea s\u00f3n un grup de mol\u00b7luscs gaster\u00f2podes heterobranquis marins inclosos dins dels sacoglossos. S\u00f3n llimacs marins petits i especialitzats, coneguts per la seva estreta associaci\u00f3 amb algues verdes, de les quals s&#8217;alimenten. Com altres sacoglossos, poden presentar cleptopl\u00e0stia, \u00e9s a dir, la capacitat de retenir cloroplasts procedents de les algues ingerides i mantenir-los funcionals durant un cert temps. Aquesta caracter\u00edstica fa dels Oxynooidea un grup especialment interessant des del punt de vista fisiol\u00f2gic i evolutiu.<\/p>\n<span style=\"font-size:10pt;\" class=\"aligncenter\"><div id=\"featured-img-id\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2012\/05\/th_MPG_7020-Oxynoe-olivacea.jpg?w=900&#038;ssl=1\" alt=\"Oxynoe olivacea by Miquel Pontes\" \/><\/div><center><em>Oxynoe olivacea<\/em> per Pontes, Miquel<\/center><\/span><p><\/p>\n<p>Els Oxynooidea viuen principalment en ambients marins poc profunds, on es troben associats a les algues que constitueixen el seu aliment. La seva distribuci\u00f3 est\u00e0 estretament relacionada amb la pres\u00e8ncia d&#8217;aquestes algues i amb les condicions ambientals adequades per al seu desenvolupament. Moltes esp\u00e8cies s\u00f3n petites i presenten colors i formes que els permeten camuflar-se entre els tal\u00b7lus algals, de manera que poden passar f\u00e0cilment desapercebudes durant les observacions submarines.<\/p>\n<p>Una de les seves caracter\u00edstiques m\u00e9s destacades \u00e9s el cos allargat, sovint amb expansions laterals o parapodis que poden donar-li un aspecte foliaci. La morfologia externa varia entre les diferents esp\u00e8cies, per\u00f2 sovint presenta una gran superf\u00edcie corporal en relaci\u00f3 amb la seva mida. Com en altres sacoglossos, la r\u00e0dula est\u00e0 especialitzada per perforar les c\u00e8l\u00b7lules de les algues i extreure&#8217;n el contingut. Aquesta adaptaci\u00f3 est\u00e0 estretament relacionada amb la seva dieta herb\u00edvora especialitzada.<\/p>\n<p>La relaci\u00f3 amb les algues pot anar m\u00e9s enll\u00e0 de l&#8217;alimentaci\u00f3. Algunes esp\u00e8cies d&#8217;Oxynooidea s\u00f3n capaces de retenir cloroplasts procedents de les algues que consumeixen i mantenir-ne l&#8217;activitat fotosint\u00e8tica durant un temps. La import\u00e0ncia d&#8217;aquesta cleptopl\u00e0stia varia segons l&#8217;esp\u00e8cie i les condicions ambientals, i no totes les esp\u00e8cies presenten el mateix grau de depend\u00e8ncia dels productes de la fotos\u00edntesi. Aquesta capacitat constitueix un exemple notable d&#8217;interacci\u00f3 fisiol\u00f2gica entre un animal i els org\u00e0nuls fotosint\u00e8tics que obt\u00e9 de la seva dieta.<\/p>\n<p>Els Oxynooidea presenten una diversitat considerable de formes i adaptacions, per\u00f2 comparteixen moltes de les caracter\u00edstiques pr\u00f2pies dels sacoglossos. La seva morfologia, coloraci\u00f3 i relaci\u00f3 amb les algues els permeten ocupar n\u00ednxols ecol\u00f2gics molt espec\u00edfics. Alguns poden viure estretament associats a una determinada alga, de manera que la identificaci\u00f3 de l&#8217;animal i la del seu substrat alimentari poden ser importants per comprendre&#8217;n la distribuci\u00f3 i l&#8217;ecologia.<\/p>\n<p>Des del punt de vista evolutiu, els Oxynooidea s\u00f3n un grup interessant per estudiar la diversificaci\u00f3 dels Sacoglossa i l&#8217;evoluci\u00f3 de la cleptopl\u00e0stia. Els estudis anat\u00f2mics i moleculars han contribu\u00eft a aclarir les relacions entre els diferents llinatges de sacoglossos i les seves especialitzacions aliment\u00e0ries. La combinaci\u00f3 d&#8217;herbivoria especialitzada, morfologia adaptada a la vida sobre les algues i capacitat de retenir cloroplasts il\u00b7lustra algunes de les estrat\u00e8gies evolutives m\u00e9s singulars desenvolupades pels heterobranquis marins.<\/p>\n<p>Tot i que els Oxynooidea s\u00f3n petits i sovint dif\u00edcils de detectar, formen part d&#8217;una diversitat especialment interessant dins dels llimacs marins. La seva estreta relaci\u00f3 amb les algues, les seves adaptacions aliment\u00e0ries i la seva capacitat de retenir cloroplasts els converteixen en un grup de gran inter\u00e8s per als estudis taxon\u00f2mics, ecol\u00f2gics i evolutius. Els mostrejos dirigits sobre les seves algues hoste poden contribuir a descobrir noves dades sobre la seva distribuci\u00f3, diversitat i biologia.<\/p>\n<p>La taxonomia dels Oxynooidea segons WoRMS \u00e9s:<\/p>\n    <style>\n        .opk-taxonomy-loader {\n            display: flex;\n            gap: 4px;\n            align-items: center;\n            justify-content: center;\n            height: 24px;\n            margin-bottom: 1em;\n        }\n        .opk-taxonomy-loader span {\n            display: block;\n            width: 4px;\n            height: 16px;\n            background: currentColor;\n            animation: opkTaxonomyBarPulse 1.2s infinite ease-in-out;\n        }\n        .opk-taxonomy-loader span:nth-child(1) { animation-delay: 0s; }\n        .opk-taxonomy-loader span:nth-child(2) { animation-delay: 0.2s; }\n        .opk-taxonomy-loader span:nth-child(3) { animation-delay: 0.4s; }\n\n        @keyframes opkTaxonomyBarPulse {\n            0%, 100% { transform: 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src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2019\/01\/Ascobulla-fragilis-%40-%C4%8Ciovu-Croatia-by-Pero-Ugarkovi%C4%87.jpg?fit=900%2C675&amp;ssl=1\" class=\"autonav-thumb\" alt=\"Ascobulla fragilis @ \u010ciovu, Croatia by Pero Ugarkovi\u0107\" loading=\"lazy\" data-attachment-id=\"28061\" data-permalink=\"https:\/\/opistobranquis.info\/ca\/guia\/sacoglossa\/oxynooidea\/ascobulla-fragilis\/ascobulla-fragilis-ciovu-croatia-by-pero-ugarkovic\/\" data-orig-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2019\/01\/Ascobulla-fragilis-%40-%C4%8Ciovu-Croatia-by-Pero-Ugarkovi%C4%87.jpg?fit=2048%2C1536&amp;ssl=1\" data-orig-size=\"2048,1536\" data-comments-opened=\"0\" data-image-title=\"Ascobulla fragilis @ \u010ciovu, Croatia by Pero Ugarkovi\u0107\" data-image-description=\"&lt;p&gt;Ascobulla fragilis @ \u010ciovu, Croatia by Pero Ugarkovi\u0107&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Ascobulla fragilis @ \u010ciovu, Croatia&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2019\/01\/Ascobulla-fragilis-%40-%C4%8Ciovu-Croatia-by-Pero-Ugarkovi%C4%87.jpg?fit=900%2C675&amp;ssl=1\" \/>\n                        <\/div>\n\n                    \n                    <div class=\"autonav-content\">\n\n                        <h3>\n                            Ascobulla fragilis                        <\/h3>\n\n                    <\/div>\n\n                <\/a>\n\n            <\/article>\n\n        \n            \n            <article class=\"autonav-card\">\n\n                <a href=\"https:\/\/opistobranquis.info\/ca\/guia\/sacoglossa\/oxynooidea\/lobiger-serradifalci\/\">\n\n                    \n                        <div class=\"autonav-image\">\n\n                            <img decoding=\"async\" width=\"900\" height=\"603\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2022\/09\/Lobiger-serradifalci-00-1.jpg?fit=900%2C603&amp;ssl=1\" class=\"autonav-thumb\" alt=\"Lobiger serradifalci by Enric Madrenas\" loading=\"lazy\" srcset=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2022\/09\/Lobiger-serradifalci-00-1.jpg?w=1034&amp;ssl=1 1034w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2022\/09\/Lobiger-serradifalci-00-1.jpg?resize=300%2C201&amp;ssl=1 300w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2022\/09\/Lobiger-serradifalci-00-1.jpg?resize=1024%2C686&amp;ssl=1 1024w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2022\/09\/Lobiger-serradifalci-00-1.jpg?resize=150%2C101&amp;ssl=1 150w\" sizes=\"auto, (max-width: 900px) 100vw, 900px\" data-attachment-id=\"34829\" data-permalink=\"https:\/\/opistobranquis.info\/ca\/guia\/sacoglossa\/oxynooidea\/lobiger-serradifalci\/lobiger-serradifalci-00-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2022\/09\/Lobiger-serradifalci-00-1.jpg?fit=1034%2C693&amp;ssl=1\" data-orig-size=\"1034,693\" data-comments-opened=\"0\" data-image-title=\"Lobiger serradifalci 00\" data-image-description=\"&lt;p&gt;Lobiger serradifalci by Enric Madrenas&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Lobiger serradifalci&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2022\/09\/Lobiger-serradifalci-00-1.jpg?fit=900%2C603&amp;ssl=1\" \/>\n                        <\/div>\n\n                    \n                    <div class=\"autonav-content\">\n\n                        <h3>\n                            Lobiger serradifalci                        <\/h3>\n\n                    <\/div>\n\n                <\/a>\n\n            <\/article>\n\n        \n            \n            <article class=\"autonav-card\">\n\n                <a href=\"https:\/\/opistobranquis.info\/ca\/guia\/sacoglossa\/oxynooidea\/oxynoe-olivacea\/\">\n\n                    \n                        <div class=\"autonav-image\">\n\n                            <img decoding=\"async\" width=\"800\" height=\"536\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2012\/05\/Oxynoe-olivacea-06.jpg?fit=800%2C536&amp;ssl=1\" class=\"autonav-thumb\" alt=\"Oxynoe olivacea\" loading=\"lazy\" srcset=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2012\/05\/Oxynoe-olivacea-06.jpg?w=800&amp;ssl=1 800w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2012\/05\/Oxynoe-olivacea-06.jpg?resize=150%2C100&amp;ssl=1 150w, https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2012\/05\/Oxynoe-olivacea-06.jpg?resize=300%2C201&amp;ssl=1 300w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" data-attachment-id=\"11619\" data-permalink=\"https:\/\/opistobranquis.info\/ca\/guia\/sacoglossa\/oxynooidea\/oxynoe-olivacea\/oxynoe-olivacea-06\/\" data-orig-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2012\/05\/Oxynoe-olivacea-06.jpg?fit=800%2C536&amp;ssl=1\" data-orig-size=\"800,536\" data-comments-opened=\"0\" data-image-title=\"Oxynoe olivacea\" data-image-description=\"&lt;p&gt;Oxynoe olivacea&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Oxynoe olivacea&lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2012\/05\/Oxynoe-olivacea-06.jpg?fit=800%2C536&amp;ssl=1\" \/>\n                        <\/div>\n\n                    \n                    <div class=\"autonav-content\">\n\n                        <h3>\n                            Oxynoe olivacea                        <\/h3>\n\n                    <\/div>\n\n                <\/a>\n\n            <\/article>\n\n        \n            \n            <article class=\"autonav-card\">\n\n                <a href=\"https:\/\/opistobranquis.info\/ca\/guia\/sacoglossa\/oxynooidea\/oxynoe-viridis\/\">\n\n                    \n                        <div class=\"autonav-image\">\n\n                            <img decoding=\"async\" width=\"800\" height=\"538\" src=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2014\/09\/Oxynoe-viridis-by-Murat-Draman-www.thedivingguidekas.com-%40-20090900-Kas-Antalya-Turquia-25m-on-Caulerpa-racemosa-var.-lamourouxii-2.jpg?fit=800%2C538&amp;ssl=1\" class=\"autonav-thumb\" alt=\"Oxynoe viridis by Murat Draman - www.thedivingguidekas.com @ 20090900 Kas, Antalya, Turquia, 25m on Caulerpa racemosa var. lamourouxii\" loading=\"lazy\" data-attachment-id=\"14711\" data-permalink=\"https:\/\/opistobranquis.info\/ca\/guia\/sacoglossa\/oxynooidea\/oxynoe-viridis\/oxynoe-viridis-by-murat-draman-www-thedivingguidekas-com-20090900-kas-antalya-turquia-25m-on-caulerpa-racemosa-var-lamourouxii-2\/\" data-orig-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2014\/09\/Oxynoe-viridis-by-Murat-Draman-www.thedivingguidekas.com-%40-20090900-Kas-Antalya-Turquia-25m-on-Caulerpa-racemosa-var.-lamourouxii-2.jpg?fit=800%2C538&amp;ssl=1\" data-orig-size=\"800,538\" data-comments-opened=\"0\" data-image-title=\"Oxynoe viridis by Murat Draman &amp;#8211; www.thedivingguidekas.com @ 20090900 Kas, Antalya, Turquia, 25m on Caulerpa racemosa var. lamourouxii\" data-image-description=\"&lt;p&gt;Oxynoe viridis by Murat Draman &amp;#8211; www.thedivingguidekas.com @ 20090900 Kas, Antalya, Turquia, 25m on Caulerpa racemosa var. lamourouxii &lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;Oxynoe viridis by Murat Draman &amp;#8211; www.thedivingguidekas.com @ 20090900 Kas, Antalya, Turquia, 25m on Caulerpa racemosa var. lamourouxii &lt;\/p&gt;\n\" data-large-file=\"https:\/\/i0.wp.com\/opistobranquis.info\/wp-content\/uploads\/2014\/09\/Oxynoe-viridis-by-Murat-Draman-www.thedivingguidekas.com-%40-20090900-Kas-Antalya-Turquia-25m-on-Caulerpa-racemosa-var.-lamourouxii-2.jpg?fit=800%2C538&amp;ssl=1\" \/>\n                        <\/div>\n\n                    \n                    <div class=\"autonav-content\">\n\n                        <h3>\n                            Oxynoe viridis                        <\/h3>\n\n                    <\/div>\n\n                <\/a>\n\n            <\/article>\n\n        \n    <\/div>\n\n    \n<p><p><strong>Bibliografia<\/strong><\/p><ul><div id=\"zotpress-d91a2c28fe79d13c555d463071b573cf\" class=\"zp-Zotpress zp-Zotpress-Bib wp-block-group\">\n\n\t\t<span class=\"ZP_API_USER_ID ZP_ATTR\">1246567<\/span>\n\t\t<span class=\"ZP_ITEM_KEY ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_COLLECTION_ID ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_TAG_ID ZP_ATTR\">Oxynooidea<\/span>\n\t\t<span class=\"ZP_AUTHOR ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_YEAR ZP_ATTR\"><\/span>\n        <span class=\"ZP_ITEMTYPE ZP_ATTR\"><\/span>\n\t\t<span class=\"ZP_INCLUSIVE ZP_ATTR\">1<\/span>\n\t\t<span class=\"ZP_STYLE ZP_ATTR\">eunomia-revista-en-cultura-de-la-legalidad<\/span>\n\t\t<span class=\"ZP_LIMIT ZP_ATTR\">50<\/span>\n\t\t<span class=\"ZP_SORTBY ZP_ATTR\">creator<\/span>\n\t\t<span class=\"ZP_ORDER 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id=\"zp-ID-26132-1246567-WR37PFVC\" data-zp-author-date='Bouchet-et-al.-2017' data-zp-date-author='2017-Bouchet-et-al.' data-zp-date='2017' data-zp-year='2017' data-zp-itemtype='journalArticle' class=\"zp-Entry zpSearchResultsItem\">\n<div class=\"csl-bib-body\" style=\"line-height: 1.35; padding-left: 1em; text-indent:-1em;\">\n  <div class=\"csl-entry\">Bouchet, P., Rocroi, J. P., Hausdorf, B., Kaim, A., Kano, Y., N\u00fctzel, A., Parkhaev, P. et\u00a0al. (2017). Revised classification, nomenclator and typification of gastropod and monoplacophoran families. <i>Malacologia<\/i>, <i>61<\/i>(1-2), 1-526.<\/div>\n<\/div>\n\t\t\t\t<\/div><!-- .zp-Entry .zpSearchResultsItem -->\n\t\t\t<\/div><!-- .zp-zp-SEO-Content -->\n\t\t<\/div><!-- .zp-List -->\n\t<\/div><!--.zp-Zotpress-->\n\n<p><\/p>Bibliografia basada en els treballs de <b>Steve Long, 2006<\/b>. <a target=_blank href=https:\/\/opistobranquis.info\/wp-content\/uploads\/2016\/06\/Long-S.-2006-Bibliography-of-Opisthobranchia-1554-2000.pdf>Bibliography of Opisthobranchia 1554-2000<\/a> i <b>Gary McDonald, 2009<\/b>. <a href=http:\/\/escholarship.org\/uc\/item\/8115h0wz>Bibliographia Nudibranchia<\/a>, amb actualitzacions posteriors procedents d\u00b4altres fonts.<p><\/p><\/ul><p><\/p><\/p>","protected":false},"excerpt":{"rendered":"<p>Els Oxynooidea s\u00f3n un grup de mol\u00b7luscs gaster\u00f2podes heterobranquis marins inclosos dins dels sacoglossos. S\u00f3n llimacs marins petits i especialitzats, coneguts per la seva estreta associaci\u00f3 amb algues verdes, de les quals s&#8217;alimenten. Com altres sacoglossos, poden presentar cleptopl\u00e0stia, \u00e9s a dir, la capacitat de retenir cloroplasts procedents de les algues ingerides i mantenir-los funcionals durant un cert temps. Aquesta caracter\u00edstica fa dels Oxynooidea un grup especialment interessant des del\u2026<\/p>\n<p class=\"continue-reading-button\"> <a class=\"continue-reading-link\" href=\"https:\/\/opistobranquis.info\/ca\/guia\/sacoglossa\/oxynooidea\/\">Continua llegint<i class=\"crycon-right-dir\"><\/i><\/a><\/p>\n","protected":false},"author":5,"featured_media":11503,"parent":231,"menu_order":3036,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"footnotes":""},"class_list":["post-26132","page","type-page","status-publish","has-post-thumbnail","hentry"],"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/pages\/26132","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/comments?post=26132"}],"version-history":[{"count":10,"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/pages\/26132\/revisions"}],"predecessor-version":[{"id":49045,"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/pages\/26132\/revisions\/49045"}],"up":[{"embeddable":true,"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/pages\/231"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/media\/11503"}],"wp:attachment":[{"href":"https:\/\/opistobranquis.info\/ca\/wp-json\/wp\/v2\/media?parent=26132"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}