{"id":8927,"date":"2024-04-25T12:10:11","date_gmt":"2024-04-25T11:10:11","guid":{"rendered":"https:\/\/afonyddcymru.cambrianweb.dev\/afon-eden\/"},"modified":"2026-10-17T22:43:59","modified_gmt":"2026-10-17T21:43:59","slug":"afon-eden","status":"publish","type":"post","link":"https:\/\/afonyddcymru.cambrianweb.dev\/cy\/afon-eden\/","title":{"rendered":"Afon Eden"},"content":{"rendered":"<p><div class=\"et_d4_element et_pb_section et_pb_section_0  et_pb_css_mix_blend_mode et_section_regular et_block_section\" >\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_d4_element et_pb_row et_pb_row_0  et_pb_css_mix_blend_mode et_block_row\">\n\t\t\t\t<div class=\"et_d4_element et_pb_column_4_4 et_pb_column et_pb_column_0  et_pb_css_mix_blend_mode et-last-child et_block_column\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_0  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><p><strong>Ebrill 2024<\/strong><\/p><\/div>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_1  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><p>Yn nyfroedd tywyll, mawnog afon yng Ngogledd Cymru\u00a0 ceir creadur yn byw y dywedir iddo fod yn un o'r rhesymau pam y daeth y Rhufeiniaid i'n glannau gyntaf. Yn yr ail ganrif OC, ysgrifennodd yr hanesydd Suetonius fod dau gyrch Julius Cesar ar Brydain yn 55 a 54CC wedi'u hysgogi gan chwilio am fetelau gwerthfawr ac, yn benodol, gan ddiddordeb mawr yr Ymerawdwr mewn perlau.<\/p>\n<p><\/p>\n<p>Ar y pryd, roedd misglod perlog yr afon (Margaritifera margaritifera) yn gyffredin ledled gogledd a gorllewin Prydain, gan gynnwys mewn sawl afon yng\u00a0 Nghymru. Er mai dim ond un ymhob sawl mil o misglod perlog yr afon sy'n cynnwys perl,\u00a0 bu ecsbloetio masnachol ar raddfa eang ohonynt hyd at y 1800au. Mae Coron yr Alban (a wnaed ym 1540) yn cynnwys chwe deg naw o berlau d?r croyw, arwyddion efallai o amlder cymharol y molysgiaid bryd hynny a gallu'r frenhiniaeth ganoloesol i ddwyn cyfoeth.<\/p><\/div>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_image et_pb_image_0\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<span class=\"et_pb_image_wrap \"><img loading=\"lazy\" decoding=\"async\" width=\"1218\" height=\"666\" src=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/1f117a79f6354aeb3acfb6bfd8610ad3-web-copy.jpg\" alt=\"\" title=\"1f117a79f6354aeb3acfb6bfd8610ad3-web copy\" srcset=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/1f117a79f6354aeb3acfb6bfd8610ad3-web-copy.jpg 1218w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/1f117a79f6354aeb3acfb6bfd8610ad3-web-copy-300x164.jpg 300w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/1f117a79f6354aeb3acfb6bfd8610ad3-web-copy-1024x560.jpg 1024w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/1f117a79f6354aeb3acfb6bfd8610ad3-web-copy-768x420.jpg 768w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/1f117a79f6354aeb3acfb6bfd8610ad3-web-copy-1080x591.jpg 1080w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/1f117a79f6354aeb3acfb6bfd8610ad3-web-copy-980x536.jpg 980w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/1f117a79f6354aeb3acfb6bfd8610ad3-web-copy-480x262.jpg 480w\" sizes=\"(max-width: 1218px) 100vw, 1218px\" class=\"wp-image-6661\" \/><\/span>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_2  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><p style=\"text-align: center;\">Afon Eden gyda\u2019r Rhinogydd yn y cefndir. <em>Llun: Fishing Passport<\/em><\/p><\/div>\n\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div><div class=\"et_d4_element et_pb_section et_pb_section_1  et_pb_css_mix_blend_mode et_section_regular et_block_section\" >\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_d4_element et_pb_row et_pb_row_1  et_pb_css_mix_blend_mode et_block_row\">\n\t\t\t\t<div class=\"et_d4_element et_pb_column_2_5 et_pb_column et_pb_column_1  et_pb_css_mix_blend_mode et_block_column\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_module et_d4_element et_pb_image et_pb_image_1\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<a href=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/03\/Compass-Net-Fishing-at-Hook-scaled.jpg\" target=\"_blank\"><span class=\"et_pb_image_wrap \"><img loading=\"lazy\" decoding=\"async\" width=\"2038\" height=\"2048\" src=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-10-copy-scaled.jpg\" alt=\"\" title=\"NWRT-10 copy\" srcset=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-10-copy-scaled.jpg 2038w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-10-copy-300x300.jpg 300w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-10-copy-1019x1024.jpg 1019w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-10-copy-150x150.jpg 150w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-10-copy-768x772.jpg 768w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-10-copy-1529x1536.jpg 1529w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-10-copy-1080x1085.jpg 1080w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-10-copy-1280x1286.jpg 1280w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-10-copy-980x985.jpg 980w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-10-copy-480x482.jpg 480w\" sizes=\"(max-width: 2038px) 100vw, 2038px\" class=\"wp-image-6664\" \/><\/span><\/a>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_3  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><p style=\"text-align: center;\">Misglen perlog yr afon (Margaritifera margaritifera) yn yr Afon Eden. <em>Llun: Hollie Harmsworth<\/em><\/p><\/div>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_image et_pb_image_2\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<span class=\"et_pb_image_wrap \"><img loading=\"lazy\" decoding=\"async\" width=\"1470\" height=\"2048\" src=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-5-copy-scaled.jpg\" alt=\"\" title=\"NWRT-5 copy\" srcset=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-5-copy-scaled.jpg 1470w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-5-copy-215x300.jpg 215w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-5-copy-735x1024.jpg 735w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-5-copy-768x1070.jpg 768w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-5-copy-1102x1536.jpg 1102w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-5-copy-1080x1505.jpg 1080w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-5-copy-1280x1783.jpg 1280w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-5-copy-980x1365.jpg 980w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-5-copy-480x669.jpg 480w\" sizes=\"(max-width: 1470px) 100vw, 1470px\" class=\"wp-image-6666\" \/><\/span>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_4  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><p style=\"text-align: center;\">Afon Eden o\u2019r awyr. <em>Llun: Hollie Harmsworth<\/em><\/p><\/div>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_image et_pb_image_3\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<a href=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Afon-Eden-Factsheet-1.jpg\" target=\"_blank\"><span class=\"et_pb_image_wrap \"><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Afon-Eden-Factsheet-1.jpg\" alt=\"\" title=\"Afon Eden - 1\" srcset=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Afon-Eden-Factsheet-1.jpg 1920w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Afon-Eden-Factsheet-1-300x169.jpg 300w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Afon-Eden-Factsheet-1-1024x576.jpg 1024w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Afon-Eden-Factsheet-1-768x432.jpg 768w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Afon-Eden-Factsheet-1-1536x864.jpg 1536w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Afon-Eden-Factsheet-1-1080x608.jpg 1080w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Afon-Eden-Factsheet-1-1280x720.jpg 1280w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Afon-Eden-Factsheet-1-980x551.jpg 980w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Afon-Eden-Factsheet-1-480x270.jpg 480w\" sizes=\"(max-width: 1920px) 100vw, 1920px\" class=\"wp-image-6690\" \/><\/span><\/a>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_5  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><p style=\"text-align: center;\">Taflen ffeithiau Afon Eden.<\/p><\/div>\n\t\t\t<\/div>\n\t\t\t<\/div><div class=\"et_d4_element et_pb_column_3_5 et_pb_column et_pb_column_2  et_pb_css_mix_blend_mode et-last-child et_block_column\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_6  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><p>Yn sownd i welyau tywodlyd neu raean mewn afonydd cyflym, llawn ocsigen a gl\u00e2n, maemisglod perlog yr afonyn rhywogaeth hynod ddiddorol a all fyw am ymhell dros 100 mlynedd. Yn y gwanwyn a dechrau'r haf, mae pob misglen perlogbenywaidd sy'n oedolyn yn rhyddhau hyd at bedair miliwn o larfa i'r d?r.<\/p>\n<p><\/p>\n<p>Pan g\u00e2nt eu hanadlu i mewn gan eog neu frithyll sy'n mynd heibio, mae'r larfa hwn yn glynu wrth dagellau pysgodyn, lle maent yn aros\u00a0 (heb, yn \u00f4l pob golwg, niweidio\u2019r pysgodyn) cyn cwympo i ffwrdd hyd at 10 mis yn ddiweddarach.<\/p>\n<p><\/p>\n<p>Wrth fudo i fyny'r afon i fridio yn hwyr yn yr hydref a'r gaeaf, anaml y bydd y salmonidau yn yr un lleoliad erbyn i\u2019r larfa fod yn barod i ddatgysylltu ac i ddechrau\u2019r cam nesaf yn eu cylchred bywyd.<\/p>\n<p><\/p>\n<p>Mae\u2019r dull atgenhedlu hwn yn ymddangos yn un synhwyrol. Yn anffodus serch hynny, mae misglod perlog yr afonbellach ar Restr Goch rhywogaethau'r IUCN ac fe'u dosbarthir fel rhai sydd mewn perygl difrifol ar draws Ewrop.<\/p>\n<p><\/p>\n<p>Er bod yr Alban yn parhau\u2019n gadarnle, dim ond mewn llond llaw o afonydd yng Nghymru y maent bellach yn bodoli. Credir mai pysgota perlau, llygredd, asideiddio, cyfoethogi organig, siltio, newid hinsawdd a niferoedd gostyngol o salmonidau yw'r prif ffactorau dros eu dirywiad. Y nifer fechan o misglod perlog yr afonyn Afon Eden yw unig boblogaeth hyfyw Cymru bellach.<\/p><\/div>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_7  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><h3>Afon Eden<\/h3><\/div>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_8  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><p>Mae tarddiad yr afon ychydig i'r de o Lyn Trawsfynydd, ac oddi yno mae'n llifo i gyfeiriad y de am oddeutu saith milltir cyn ymuno \u00e2\u2019r Afon Mawddach yng Nganllwyd. O ran cymeriad, mae'n ychydig fel\u00a0 afon \u201ccildro\u201d\u2013 mae'r rhannau uchaf yn llifo'n gymharol araf tra bod y rhannau isaf yn plymio'n fwy serth trwy geunant creigiog.<\/p>\n<p><\/p>\n<p>Mae\u2019r Afon Eden yn Ardal Gadwraeth Arbennig (ACA) ac yn Safle o Ddiddordeb Gwyddonol Arbennig (SoDdGA) ar hyd ei hyd, gyda'i dynodiad ACA yn bennaf ar oherwydd\u00a0 misglod perlog yr afon a'r llyriad-y-d?r arnofiol (Luronium natans). Mae nifer o'i llednentydd yn llifo oddi ar ochrau dwyreiniol mynyddoedd y Rhinogau, gan roi d?r ychydig yn asidig i\u2019r Eden \u2013 rhywbeth y mae misglen perlog yr afon yn ymddangos i\u2019w ffafrio.<\/p><\/div>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_9  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><h3>Achub misglod perlog yr afon<\/h3><\/div>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_10  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><p>Bu ymdrechion diweddar i adfywio ffawd y rhywogaeth, gan gynnwys y prosiect ehangach \u201cPerlau mewn Perygl LIFE+ GB\u201d a ariannwyd gan Ewrop o 2012 i 2016. Ond yn fwy diweddar, mae Ymddiriedolaeth Afonydd Gogledd Cymru wedi ysgwyddo\u2019r cyfrifoldeb i i achub poblogaeth fechan ond bwysig misglod perlog Afon Eden.<\/p>\n<p><\/p>\n<p>Ym mis Ionawr 2023 a chyda chyllid gan Lywodraeth Cymru\/Cyfoeth Naturiol Cymru, Parc Cenedlaethol Eryri ac LNP Cymru, lansiodd yr ymddiriedolaeth brosiect i helpu poblogaethau salmonid ar draws dalgylch Mawddach.<\/p>\n<p><\/p>\n<p>Yn ogystal \u00e2\u2019u dibyniaeth ar y pysgod ar gyfer atgenhedlu, mae misglod perlog yr afon yn mwynhau\u00a0 amodau afon tebyg i salmonidau - d?r oer, gl\u00e2n gyda gwelyau afonydd nad ydynt wedi\u2019u gorchuddio \u00e2 silt. Felly, bydd y camau a gymerir gan Ymddiriedolaeth Afonydd Gogledd Cymru yn y prosiect yn helpu misglod perlog yr afon hefyd. Mae hyn yn arbennig o wir wrth atal siltio, sy\u2019n arbennig o niweidiol i misglen perlog ifanc os c\u00e2nt eu gorchuddio gan ormod o waddod m\u00e2n.<\/p>\n<p><\/p>\n<p>Mae'r ymddiriedolaeth wedi cynnal arolygon i ddarganfod ble yn union maemisglod perlog yr afon, fel y gellid cadw'r aflonyddwch i'r lleiafswm. Mae eu lleoliadau yn gyfrinach a gedwir yn ofalus gan fod pysgota perl anghyfreithlon yn dal i fod yn risg, hyd yn oed os yw'r siawns o ddod o hyd i un (heb s\u00f4n am un gyda pherl ynddo) yn hynod o isel. Maent hefyd wedi gosod ffensys a phympiau solar ar gyfer cafnau d?r i gadw da byw allan o'r afon ac felly atal difrod i'r glannau, cyfoethogi'r d?r, cywasgu graean a lleihau siltio.<\/p><\/div>\n\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div><div class=\"et_d4_element et_pb_section et_pb_section_2  et_pb_css_mix_blend_mode et_section_regular et_block_section\" >\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_d4_element et_pb_row et_pb_row_2  et_pb_css_mix_blend_mode et_block_row\">\n\t\t\t\t<div class=\"et_d4_element et_pb_column_1_2 et_pb_column et_pb_column_3  et_pb_css_mix_blend_mode et_block_column\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_module et_d4_element et_pb_image et_pb_image_4\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<span class=\"et_pb_image_wrap \"><img loading=\"lazy\" decoding=\"async\" width=\"1500\" height=\"1125\" src=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_6792-copy.jpg\" alt=\"\" title=\"IMG_6792 copy\" srcset=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_6792-copy.jpg 1500w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_6792-copy-300x225.jpg 300w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_6792-copy-1024x768.jpg 1024w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_6792-copy-768x576.jpg 768w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_6792-copy-510x382.jpg 510w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_6792-copy-1080x810.jpg 1080w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_6792-copy-1280x960.jpg 1280w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_6792-copy-980x735.jpg 980w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_6792-copy-480x360.jpg 480w\" sizes=\"(max-width: 1500px) 100vw, 1500px\" class=\"wp-image-6674\" \/><\/span>\n\t\t\t<\/div>\n\t\t\t<\/div><div class=\"et_d4_element et_pb_column_1_2 et_pb_column et_pb_column_4  et_pb_css_mix_blend_mode et-last-child et_block_column\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_module et_d4_element et_pb_image et_pb_image_5\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<span class=\"et_pb_image_wrap \"><img loading=\"lazy\" decoding=\"async\" width=\"1500\" height=\"1125\" src=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_0181.jpeg\" alt=\"\" title=\"IMG_0181\" srcset=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_0181.jpeg 1500w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_0181-300x225.jpeg 300w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_0181-1024x768.jpeg 1024w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_0181-768x576.jpeg 768w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_0181-510x382.jpeg 510w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_0181-1080x810.jpeg 1080w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_0181-1280x960.jpeg 1280w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_0181-980x735.jpeg 980w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/IMG_0181-480x360.jpeg 480w\" sizes=\"(max-width: 1500px) 100vw, 1500px\" class=\"wp-image-6672\" \/><\/span>\n\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div><div class=\"et_d4_element et_pb_section et_pb_section_3  et_pb_css_mix_blend_mode et_section_regular et_block_section\" >\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_d4_element et_pb_row et_pb_row_3  et_pb_css_mix_blend_mode et_block_row\">\n\t\t\t\t<div class=\"et_d4_element et_pb_column_4_4 et_pb_column et_pb_column_5  et_pb_css_mix_blend_mode et-last-child et_block_column\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_11  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><p style=\"text-align: center;\">Adlenwi graean ar Afon Eden (chwith uchod) i greu cynefin newydd i salmonid ifanc a misglod perlog yr afon. Hyd yn hyn, mae Ymddiriedolaeth Afonydd Gogledd Cymru wedi cyflwyno 200 tunnell o raean newydd i'r afon, yn ogystal ag ailgyflwyno 200 o greigiau a dynnwyd yn flaenorol (uchod ar y dde) i normaleiddio\u2019r llif.<\/p><\/div>\n\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div><div class=\"et_d4_element et_pb_section et_pb_section_4  et_pb_css_mix_blend_mode et_section_regular et_block_section\" >\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_d4_element et_pb_row et_pb_row_4  et_pb_css_mix_blend_mode et_block_row\">\n\t\t\t\t<div class=\"et_d4_element et_pb_column_1_2 et_pb_column et_pb_column_6  et_pb_css_mix_blend_mode et_block_column\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_12  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><h3>Gwaith Ymddiriedolaeth Afonydd Gogledd Cymru, Afon Eden<\/h3>\n<p><\/p>\n<ul>\n<li>Cyflwynwyd dros 200 tunnell o raean newydd<\/li>\n<li>Ailgyflwynwyd dros 200 o greigiau<\/li>\n<li>Tynnwyd un gored oedd yn rhwystr i fudo pysgod<\/li>\n<li>Dros 4km o lan yr afon wedi\u2019i ffensio gyda stribed byffer o 10m<\/li>\n<li>Ffosydd draenio wedi eu rhwystro (i adfer llif naturiol)<\/li>\n<li>Arolygon mawn wedi\u2019u cwblhau<\/li>\n<li>Dros 1,500 o goed wedi\u2019u plannu<\/li>\n<li>Monitro rheolaidd o all-lif CSO<\/li>\n<li>Arolygon snorclo parhaus ac arolygon cynefinoedd afonydd ar gyfer y gymuned leol<\/li>\n<li>Arolygon electrobysgota ar y gweill i asesu effaith graean llynedd<\/li>\n<\/ul>\n<p><\/p>\n<p>Ac ar y gweill:<\/p>\n<p><\/p>\n<ul>\n<li>Llyfr stori a gyhoeddwyd yn ddiweddarach yn 2024 am drafferthion misglod perlog yr afonyr eog a'r sewin wedi ei ysgrifennu gyda phlant ysgol leol mewn partneriaeth \u00e2 Chymdeithas Pysgota Prysor.<\/li>\n<\/ul><\/div>\n\t\t\t<\/div>\n\t\t\t<\/div><div class=\"et_d4_element et_pb_column_1_2 et_pb_column et_pb_column_7  et_pb_css_mix_blend_mode et-last-child et_block_column\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_module et_d4_element et_pb_image et_pb_image_6\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<span class=\"et_pb_image_wrap \"><img loading=\"lazy\" decoding=\"async\" width=\"1610\" height=\"2048\" src=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-7-1-copy2-scaled.jpg\" alt=\"\" title=\"NWRT-7 (1) copy2\" srcset=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-7-1-copy2-scaled.jpg 1610w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-7-1-copy2-236x300.jpg 236w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-7-1-copy2-805x1024.jpg 805w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-7-1-copy2-768x977.jpg 768w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-7-1-copy2-1207x1536.jpg 1207w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-7-1-copy2-1080x1374.jpg 1080w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-7-1-copy2-1280x1628.jpg 1280w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-7-1-copy2-980x1247.jpg 980w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/NWRT-7-1-copy2-480x611.jpg 480w\" sizes=\"(max-width: 1610px) 100vw, 1610px\" class=\"wp-image-6676\" \/><\/span>\n\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div><div class=\"et_d4_element et_pb_section et_pb_section_5  et_pb_css_mix_blend_mode et_section_regular et_block_section\" >\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_d4_element et_pb_row et_pb_row_5  et_pb_css_mix_blend_mode et_block_row\">\n\t\t\t\t<div class=\"et_d4_element et_pb_column_4_4 et_pb_column et_pb_column_8  et_pb_css_mix_blend_mode et-last-child et_block_column\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_13  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><p><strong>\u00a0<\/strong><\/p>\n<p><\/p>\n<p>Maent hefyd wedi cyflwyno dros 200 tunnell o raean afon newydd a 200 o gerrig mawr i normaleiddio llif y d?r. Gall y gwelyau graean newydd gael eu defnyddio gan misglod perlog yr afonfel cynefin a chan bysgod salmonid ar gyfer silio, gydag arolygon electrobysgota yn asesu'r effaith.<\/p>\n<p><\/p>\n<p>Yn ogystal, mae dros 1,500 o goed collddail wedi'u plannu ar hyd\u00a0 glannau\u2019r afon i reoleiddio tymheredd y d?r yn well ac i ddarparu'r \u00a0deunydd pren marw sy\u2019n hanfodol ar gyfer ffyniant poblogaethau pysgod. Er bod Afon Eden yn un o'r ychydig afonydd ACA Cymru sy'n cyrraedd ei thargedau ffosffad ar hyn o bryd, mae Ymddiriedolaeth Afonydd Gogledd Cymru hefyd wedi dechrau rhaglen fonitro gynhwysfawr ar danciau septig gan godi ymwybyddiaeth yn lleol am bwysigrwydd eu cynnal a'u cadw'n effeithiol.<\/p>\n<p><\/p>\n<p>Er y bydd cynlluniau bridio mewn caethiwed Cyfoeth Naturiol Cymru yn ceisio ailsefydlu poblogaethau yn yr Eden ac afonydd eraill yng Ngyymru, mae'r ymddiriedolaeth yn gobeithio y bydd y mesurau hyn gyda'i gilydd yn ddigon i helpu i achub misglod berlog yr afon.<\/p><\/div>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_image et_pb_image_7\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<span class=\"et_pb_image_wrap \"><img loading=\"lazy\" decoding=\"async\" width=\"1632\" height=\"780\" src=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Lower-Eden-copy2.jpg\" alt=\"\" title=\"Lower Eden copy2\" srcset=\"https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Lower-Eden-copy2.jpg 1632w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Lower-Eden-copy2-300x143.jpg 300w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Lower-Eden-copy2-1024x489.jpg 1024w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Lower-Eden-copy2-768x367.jpg 768w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Lower-Eden-copy2-1536x734.jpg 1536w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Lower-Eden-copy2-1080x516.jpg 1080w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Lower-Eden-copy2-1280x612.jpg 1280w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Lower-Eden-copy2-980x468.jpg 980w, https:\/\/afonyddcymru.cambrianweb.dev\/wp-content\/uploads\/2024\/04\/Lower-Eden-copy2-480x229.jpg 480w\" sizes=\"(max-width: 1632px) 100vw, 1632px\" class=\"wp-image-6680\" \/><\/span>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_14  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><p style=\"text-align: center;\">Y rhan isaf o Afon Eden, lle mae'n afon llawer mwy serth a chyflymach. <em>Llun: Cymdeithas Pysgota Prysor drwy The Fishing Passport<\/em><\/p><\/div>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_15  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><p>Diolch i<a href=\"https:\/\/northwalesriverstrust.org\/\">Ymddiriedolaeth Afonydd Gogledd Cymru <\/a>\u00a0am eu cymorth ac i Hollie Harmsworth am y ffotograffiaeth.<\/p><\/div>\n\t\t\t<\/div><div class=\"et_pb_module et_d4_element et_pb_text et_pb_text_16  et_pb_text_align_left et_pb_bg_layout_light\">\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t<div class=\"et_pb_text_inner\"><p>Postio:<\/p><\/div>\n\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div>\n\t\t\t\t\n\t\t\t\t\n\t\t\t<\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Mae&#8217;r llednant hon o Afon Mawddach, sydd wedi&#8217;i dynodi&#8217;n Ardal Cadwraeth Arbennig, yn llifo&#8217;n rhannol drwy Barc Cenedlaethol Eryri yng Ngogledd Cymru. Mae ei dyfroedd tywyll yn cuddio creadur prin y credir ei fod yn un o&#8217;r rhesymau pam y goresgynnodd y Rhufeiniaid Ynysoedd Prydain&#8230;.<\/p>\n","protected":false},"author":3,"featured_media":8524,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[58],"tags":[],"class_list":["post-8927","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-afon-y-mis"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Afon Eden - Afonydd Cymru<\/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:\/\/afonyddcymru.cambrianweb.dev\/eden\/\" \/>\n<meta property=\"og:locale\" content=\"cy_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Afon Eden - Afonydd Cymru\" \/>\n<meta property=\"og:description\" content=\"Mae&#039;r llednant hon o Afon Mawddach, sydd wedi&#039;i dynodi&#039;n Ardal Cadwraeth Arbennig, yn llifo&#039;n rhannol drwy Barc Cenedlaethol Eryri yng Ngogledd Cymru. 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