{"id":2141,"date":"2026-03-10T12:21:07","date_gmt":"2026-03-10T12:21:07","guid":{"rendered":"https:\/\/wildseas.wales\/bioddiogelwch-morol\/llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru\/"},"modified":"2026-06-25T10:16:13","modified_gmt":"2026-06-25T10:16:13","slug":"llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru","status":"publish","type":"page","link":"https:\/\/wildseas.wales\/cy\/bioddiogelwch-morol\/llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru\/","title":{"rendered":"Llwybrau Morol yng Nghymru"},"content":{"rendered":"

[et_pb_section fb_built=”1″ _builder_version=”4.27.5″ _module_preset=”default” custom_padding=”|0px||||” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][et_pb_heading title=”Llwybrau ar gyfer rhywogaethau estron goresgynnol morol yng Nghymru” _builder_version=”4.27.5″ _module_preset=”default” title_font=”|600|||||||” global_colors_info=”{}”][\/et_pb_heading][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n

Er mwyn atal cyflwyno a lledaenu rhywogaethau estron goresgynnol, rydym yn canolbwyntio ar reoli eu llwybrau yn hytrach na chanolbwyntio ar rywogaethau unigol, oherwydd bod targedu llwybrau yn amddiffyn rhag pob rhywogaeth estron oresgynnol forol. <\/span> <\/span><\/span>Mae rhai o\u2019r llwybrau allweddol ar gyfer cyflwyno a lledaenu rhywogaethau estron goresgynnol morol yn cael <\/span><\/span><\/span>eu rhestru isod.<\/span><\/p>\n

Cliciwch ar y delweddau i ddysgu mwy am y llwybr, gan gynnwys sut mae rhywogaethau estron goresgynnol yn cael eu lledaenu gan y llwybr, sut y gall rhywogaethau estron goresgynnol effeithio ar y gweithgareddau sy\u2019n gysylltiedig \u00e2\u2019r llwybr, y rhywogaethau estron goresgynnol risg uchaf ar gyfer y llwybr, canllawiau arfer gorau, a dolen i\u2019r cynllun gweithredu llawn ar gyfer y llwybr. <\/span><\/span> <\/span><\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row _builder_version=”4.27.5″ _module_preset=”default” custom_padding=”||0px||false|false” global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][et_pb_heading title=”Cynllun Gweithredu ar Gyfer y Llwybr” _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_heading][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_5,1_5,1_5,1_5,1_5″ _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”1_5″ _builder_version=”4.27.5″ _module_preset=”default” overflow-x=”visible” overflow-y=”visible” global_colors_info=”{}”][et_pb_blurb title=”Dyframaethu” url=”https:\/\/wildseas.wales\/cy\/bioddiogelwch-morol\/llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru\/dyframaethu\/” image=”https:\/\/wildseas.wales\/wp-content\/uploads\/2026\/03\/Marine-Pathway-Aquaculture.jpg” _builder_version=”4.27.5″ _module_preset=”default” link_option_url=”https:\/\/wildseas.wales\/cy\/bioddiogelwch-morol\/llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru\/dyframaethu\/” border_radii_image=”on|15px|15px|15px|15px” global_colors_info=”{}”][\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_5″ _builder_version=”4.27.5″ _module_preset=”default” overflow-x=”visible” overflow-y=”visible” global_colors_info=”{}”][et_pb_blurb title=”Cychod Hamdden” url=”https:\/\/wildseas.wales\/cy\/bioddiogelwch-morol\/llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru\/cychod-hamdden-cychod-bach-a-chychod-mawr\/” image=”https:\/\/wildseas.wales\/wp-content\/uploads\/2026\/03\/recreational-boating.jpg” _builder_version=”4.27.5″ _module_preset=”default” link_option_url=”https:\/\/wildseas.wales\/cy\/bioddiogelwch-morol\/llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru\/cychod-hamdden-cychod-bach-a-chychod-mawr\/” border_radii_image=”on|15px|15px|15px|15px” global_colors_info=”{}”][\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_5″ _builder_version=”4.27.5″ _module_preset=”default” overflow-x=”visible” overflow-y=”visible” global_colors_info=”{}”][et_pb_blurb title=”Gweithgareddau Hamdden” url=”https:\/\/wildseas.wales\/cy\/bioddiogelwch-morol\/llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru\/gweithgareddau-hamdden\/” image=”https:\/\/wildseas.wales\/wp-content\/uploads\/2026\/03\/Recreational-activities.jpg” _builder_version=”4.27.5″ _module_preset=”default” link_option_url=”https:\/\/wildseas.wales\/cy\/bioddiogelwch-morol\/llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru\/gweithgareddau-hamdden\/” border_radii_image=”on|15px|15px|15px|15px” global_colors_info=”{}”][\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_5″ _builder_version=”4.27.5″ _module_preset=”default” overflow-x=”visible” overflow-y=”visible” global_colors_info=”{}”][et_pb_blurb title=”Morgludiant Masnachol” url=”https:\/\/wildseas.wales\/cy\/bioddiogelwch-morol\/llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru\/morgludiant-masnachol\/” image=”https:\/\/wildseas.wales\/wp-content\/uploads\/2026\/03\/Commercial-shipping.jpg” _builder_version=”4.27.5″ _module_preset=”default” link_option_url=”https:\/\/wildseas.wales\/cy\/bioddiogelwch-morol\/llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru\/morgludiant-masnachol\/” border_radii_image=”on|15px|15px|15px|15px” global_colors_info=”{}”][\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_5″ _builder_version=”4.27.5″ _module_preset=”default” overflow-x=”visible” overflow-y=”visible” global_colors_info=”{}”][et_pb_blurb title=”Pysgota” url=”https:\/\/wildseas.wales\/cy\/bioddiogelwch-morol\/llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru\/pysgota-ar-gwch-ac-ar-y-lan\/” image=”https:\/\/wildseas.wales\/wp-content\/uploads\/2026\/03\/fishing.jpg” _builder_version=”4.27.5″ _module_preset=”default” link_option_url=”https:\/\/wildseas.wales\/cy\/bioddiogelwch-morol\/llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru\/pysgota-ar-gwch-ac-ar-y-lan\/” border_radii_image=”on|15px|15px|15px|15px” global_colors_info=”{}”][\/et_pb_blurb][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ _builder_version=”4.27.5″ _module_preset=”default” custom_padding=”0px||||false|false” global_colors_info=”{}”][et_pb_row column_structure=”3_5,2_5″ _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”3_5″ _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][et_pb_heading title=”Cynnal a chadw safle ac adeiladu” module_id=”smc” _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][\/et_pb_heading][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n

Gall rhai gweithgareddau cyffredinol beryglu lledaenu rhywogaethau estron goresgynnol. Mae\u2019r rhain yn cynnwys m\u00e2n waith, atgyweiriadau, a gwaith cynnal a chadw ac adeiladu na fyddai o reidrwydd angen trwydded forol ar eu cyfer. Gweler <\/span>Gwefan Cyfoeth Naturiol Cymru<\/a> am fwy o wybodaeth.<\/span> <\/span><\/p>\n

Mae symud deunydd ac offer ar safle neu oddi ar safle yn peryglu trosglwyddo rhywogaethau estron goresgynnol a all fod ynghlwm wrth arwynebau, wedi\u2019u dal mewn unrhyw nodweddion\/holltau sy\u2019n dal d\u0175r (gan gynnwys mewn deunyddiau mandyllog fel concrit), neu\u2019n byw mewn gwaddodion neu ymhlith rhywogaethau eraill. Os na chaiff y deunydd neu\u2019r offer eu glanhau a\u2019u sychu\u2019n drylwyr cyn eu symud i\u2019r safle neu oddi arno, byddai unrhyw rywogaethau estron goresgynnol sy\u2019n bresennol hefyd yn cael eu symud i\u2019r safle neu oddi arno. <\/span> <\/span><\/p>\n

Gall offer, rhannau neu ddeunyddiau sydd wedi bod mewn d\u0175r am gyfnodau hir gronni biolygredd a all gael ei symud i\u2019r d\u0175r yn ystod gwaith cynnal a chadw, glanhau neu ailosod \u2013 gan ganiat\u00e1u i rywogaethau estron goresgynnol ledaenu i ardaloedd newydd.<\/span> <\/span><\/p>\n

Mae\u2019r canllawiau arfer gorau isod ar gyfer y rhai sy\u2019n cynllunio neu\u2019n ymgymryd \u00e2 m\u00e2n waith ar safle. <\/span><\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”2_5″ _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/wildseas.wales\/wp-content\/uploads\/2026\/04\/Fouled-buoy-Joe-Ironside.jpg” title_text=”Bwi wedi'i faeddu \u2013 Joe Ironside” _builder_version=”4.27.5″ _module_preset=”default” custom_margin=”||0px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” text_font_size=”12px” global_colors_info=”{}”]<\/p>\n

Bwi wedi’i faeddu \u2013 Joe Ironside<\/span><\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”3_5,2_5″ _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][et_pb_column type=”3_5″ _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”]<\/p>\n

Gweithgaredd: Glanhau, cynnal a chadw, neu gael gwared ar adeileddau\/eitemau yn y d\u0175r<\/i> <\/strong><\/p>\n

\u2705 Archwiliwch yr adeileddau cyn amharu arnynt. <\/span> <\/span><\/p>\n

\u2705 Os oes llygredd arnynt, dylid tynnu\u2019r adeiledd allan o\u2019r d\u0175r a\u2019i lanhau cyn gwneud unrhyw waith ychwanegol. Cadwch unrhyw ddeunydd sy\u2019n dod oddi ar yr eitem a\u2019i waredu ar dir.<\/span> <\/span><\/p>\n

<\/span><\/p>\n

Gweithgaredd: Dwyn seilwaith\/offer a deunydd newydd i\u2019r safle <\/i><\/strong> <\/span><\/p>\n

\u2705 Dylid gwneud yn si\u0175r ei fod yn hollol l\u00e2n ac yn sych cyn ei ddefnyddio.<\/span> <\/span><\/p>\n

\u2705 Os nad yw\u2019n l\u00e2n pan fydd yn cyrraedd, dylid ei ddychwelyd i leoliad addas i\u2019w lanhau. Dylai hwn fod yn ardal gaeedig o lawr caled gyda draeniad priodol. Dylid casglu a gwaredu d\u0175r gwastraff a deunydd gwastraff mewn ffordd fioddiogel i atal rhywogaethau estron goresgynnol (gan gynnwys larf\u00e2u, darnau ac ati) rhag ailymuno \u00e2\u2019r amgylchedd (e.e. tanciau d\u0175r a biniau gwastraff biolegol). <\/span> <\/span><\/p>\n

\u2705 Os yn bosibl, dylid gwirio ffynhonnell yr eitem(au) a deall pa rywogaethau estron goresgynnol sy\u2019n bresennol ar y safle hwnnw.<\/span> <\/span><\/p>\n

<\/span><\/i><\/p>\n

Gweithgaredd: Arfer da gweithredol cyffredinol ar gyfer seilwaith<\/i> <\/strong><\/p>\n

\u2705 Lle bo\u2019n ymarferol, dylid tynnu adeileddau a wnaed gan ddyn o\u2019r d\u0175r pan nad ydynt yn cael eu defnyddio. <\/span> <\/span><\/p>\n

\u2705 Os na ellir eu tynnu pan nad ydynt yn cael eu defnyddio, dylid gollwng angorfeydd i wely\u2019r m\u00f4r i dagu llygredd (mewn gwaddodion mwdlyd) neu atal tyfiant newydd. <\/span> <\/span><\/p>\n

\u2705 Nodwch gyfleoedd i sychu offer neu seilwaith mor aml \u00e2 phosibl, e.e. ystafell sychu \/ ardal ar gyfer cit, cyfarpar diogelu personol ac ati. <\/span> <\/span><\/p>\n

\u2705 Manteisiwch i\u2019r eithaf ar unrhyw lif naturiol o dd\u0175r croyw i mewn i\u2019r safle. Amlygwch rywogaethau estron goresgynnol i dd\u0175r croyw trwy drochi neu olchi. <\/span> <\/span><\/p>\n

[\/et_pb_text][\/et_pb_column][et_pb_column type=”2_5″ _builder_version=”4.27.5″ _module_preset=”default” global_colors_info=”{}”][et_pb_image src=”https:\/\/wildseas.wales\/wp-content\/uploads\/2026\/04\/Fouled-rope-_-Natural-Resources-Wales.jpg” title_text=”Rhaff wedi'i baeddu \u2013 Cyfoeth Naturiol Cymru” _builder_version=”4.27.5″ _module_preset=”default” custom_margin=”||0px||false|false” global_colors_info=”{}”][\/et_pb_image][et_pb_text _builder_version=”4.27.5″ _module_preset=”default” text_font_size=”12px” global_colors_info=”{}”]<\/p>\n

Rhaff wedi’i baeddu \u2013 Cyfoeth Naturiol Cymru<\/span><\/span><\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"

Er mwyn atal cyflwyno a lledaenu rhywogaethau estron goresgynnol, rydym yn canolbwyntio ar reoli eu llwybrau yn hytrach na chanolbwyntio ar rywogaethau unigol, oherwydd bod targedu llwybrau yn amddiffyn rhag pob rhywogaeth estron oresgynnol forol. Mae rhai o\u2019r llwybrau allweddol ar gyfer cyflwyno a lledaenu rhywogaethau estron goresgynnol morol yn cael eu rhestru isod. Cliciwch […]<\/p>\n","protected":false},"author":5,"featured_media":2428,"parent":2099,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-2141","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"\nLlwybrau Morol yng Nghymru | Wild Seas Wales<\/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:\/\/wildseas.wales\/cy\/bioddiogelwch-morol\/llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru\/\" \/>\n<meta property=\"og:locale\" content=\"cy_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Llwybrau Morol yng Nghymru | Wild Seas Wales\" \/>\n<meta property=\"og:description\" content=\"Er mwyn atal cyflwyno a lledaenu rhywogaethau estron goresgynnol, rydym yn canolbwyntio ar reoli eu llwybrau yn hytrach na chanolbwyntio ar rywogaethau unigol, oherwydd bod targedu llwybrau yn amddiffyn rhag pob rhywogaeth estron oresgynnol forol. Mae rhai o\u2019r llwybrau allweddol ar gyfer cyflwyno a lledaenu rhywogaethau estron goresgynnol morol yn cael eu rhestru isod. Cliciwch […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/wildseas.wales\/cy\/bioddiogelwch-morol\/llwybrau-ar-gyfer-rhywogaethau-estron-goresgynnol-morol-yng-nghymru\/\" \/>\n<meta property=\"og:site_name\" content=\"Wild Seas Wales\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/facebook.com\/wildseaswales\" \/>\n<meta property=\"article:modified_time\" content=\"2026-06-25T10:16:13+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/wildseas.wales\/wp-content\/uploads\/2026\/04\/Marine-Pathways-in-Wales-1024x538.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@wildseaswales\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"7 minutes\" \/>\n<script type=\"application\/ld+json\" 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