{"id":14686,"date":"2021-09-28T16:19:40","date_gmt":"2021-09-28T19:19:40","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/?p=14686"},"modified":"2023-01-05T14:33:43","modified_gmt":"2023-01-05T17:33:43","slug":"young-sea-turtles-trapped-by-plastic-evolutionary-trap","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/lv\/jaunie-juras-brunurupuci-kas-nokluvusi-plastmasas-evolucijas-slazda\/","title":{"rendered":"Jaunie j\u016bras bru\u0146urupu\u010di, kas non\u0101ku\u0161i plastmasas slazd\u0101: evol\u016bcijas slazds"},"content":{"rendered":"

Bru\u0146urupu\u010di un plastmasa<\/h2>\n\n\n\n

P\u0113t\u012bjums liecina, ka plastmasas pies\u0101r\u0146ojums laika gait\u0101 notver j\u016bras bru\u0146urupu\u010du mazu\u013cus. <\/p>\n\n\n\n

J\u016bras bru\u0146urupu\u010du mazu\u013ci p\u0113c iz\u0161\u0137il\u0161an\u0101s pamet pludmales, lai augtu oke\u0101na diben\u0101. Turkl\u0101t laika gait\u0101 \u0161aj\u0101s straum\u0113s ir uzkr\u0101jies arvien liel\u0101ks daudzums plastmasas, ko daudzi bru\u0146urupu\u010di norij, barojoties piekrastes tuvum\u0101. <\/p>\n\n\n\n

Tiek uzskat\u012bts, ka bru\u0146urupu\u010du mazu\u013ci, jo \u012bpa\u0161i tikko iz\u0161\u0137\u012blu\u0161ies un tie, kas dz\u012bvo oke\u0101na diben\u0101, ir visvair\u0101k pak\u013cauti plastmasas pies\u0101r\u0146ojumam. Tom\u0113r att\u0101lin\u0101t\u0101s atra\u0161an\u0101s vietas d\u0113\u013c tiem ir ierobe\u017eota piek\u013cuve un nov\u0113rt\u0113\u0161ana. <\/p>\n\n\n\n

In a p\u0113t\u012bjums<\/a> ko vada Ekseteras Universit\u0101te<\/a>, Austr\u0101lijas austrumu (Klus\u0101 oke\u0101na) un rietumu (Indijas oke\u0101na) piekrast\u0113 p\u0113tnieki konstat\u0113ja j\u016bras plastmasas kl\u0101tb\u016btni iz\u0161\u0137\u012blu\u0161os bru\u0146urupu\u010du mazu\u013cos.<\/p>\n\n\n

\n
\"Mind<\/a>
Mind the Graph Ilustr\u0101cija: Cheloniidae<\/a><\/figcaption><\/figure><\/div>\n\n\n

Vai bru\u0146urupu\u010di var iekrist evol\u016bcijas slazd\u0101?<\/h2>\n\n\n\n

J\u016bras sist\u0113mas jau gadiem ilgi ietekm\u0113 plastmasas atkritumi, un ir m\u0113\u0123in\u0101ts nov\u0113rt\u0113t to mijiedarb\u012bbu ar vair\u0101k nek\u0101 700 sug\u0101m. <\/p>\n\n\n\n

Plastmasas nor\u012b\u0161ana, sap\u012b\u0161an\u0101s ar plastmasu un ekosist\u0113mas degrad\u0101cija - tas viss ir plastmasas rad\u012btais apdraud\u0113jums. Arvien vair\u0101k tiek apzin\u0101ts, ka j\u016bras bru\u0146urupu\u010di pat\u0113r\u0113 plastmasu, ta\u010du nav atrasti dati, kas pier\u0101d\u012btu plastmasas uz\u0146em\u0161anas ietekmi popul\u0101cijas l\u012bmen\u012b. <\/p>\n\n\n\n

Atkl\u0101tos \u016bde\u0146os bru\u0146urupu\u010diem ir ide\u0101la vide att\u012bst\u012bbai, jo pl\u0113s\u0113ju skaits ir minim\u0101ls, un tas ir lielisks apst\u0101klis, kur\u0101 tie var att\u012bst\u012bties. J\u016bras bru\u0146urupu\u010du mazu\u013ciem nav noteikta uztura; tie \u0113d visu un gandr\u012bz visu, tostarp plastmasu. <\/p>\n\n\n\n

J\u016bras bru\u0146urupu\u010di var b\u016bt vair\u0101k neaizsarg\u0101ti pret vides pies\u0101r\u0146ot\u0101jiem, jo to dz\u012bvesvieta un uzved\u012bba noteikt\u0101s dz\u012bves cikla f\u0101z\u0113s ir paaugstin\u0101ta. <\/p>\n\n\n\n

Iz\u0146emot bru\u0146urupu\u010dus, p\u0113c iz\u0161\u0137il\u0161an\u0101s bru\u0146urupu\u010di parasti dz\u012bvo oke\u0101na zon\u0101s, kur tie parasti sastopami neliel\u0101 skait\u0101 sauszemes josl\u0101s. P\u0113c iz\u0161\u0137il\u0161an\u0101s posma laik\u0101 plakan\u0101 muguras bru\u0146urupu\u010di izmanto piekrastes \u016bde\u0146us. Tikai retos gad\u012bjumos tie ienirst dzi\u013c\u0101k oke\u0101n\u0101, ja barojas pie paisuma un b\u0113guma l\u012bnij\u0101m, oke\u0101na krastiem vai gr\u0113d\u0101m, kas tuvojas krasta l\u012bnijai. Bie\u017ei vien tiem rakstur\u012bga epipela\u0123iska baro\u0161an\u0101s. <\/p>\n\n\n\n

Ir pier\u0101d\u012bts, ka ne\u0113damie produkti var izrais\u012bt uztura at\u0161\u0137aid\u012b\u0161anu, pazemin\u0101t ener\u0123ijas l\u012bmeni organism\u0101, k\u0101 ar\u012b da\u017e\u0101m sug\u0101m izrais\u012bt ku\u0146\u0123a un zarnu trakta kan\u0101la, klo\u0101kas un ur\u012bnp\u016b\u0161\u013ca boj\u0101jumus.  <\/p>\n\n\n

\n
\"Mind<\/a>
Mind the Graph veidne: Oke\u0101na t\u0113ma<\/figcaption><\/figure><\/div>\n\n\n

P\u0113t\u012bjuma rezult\u0101ti<\/h2>\n\n\n\n

Tika veikts p\u0113t\u012bjums par j\u016bras bru\u0146urupu\u010du mazu\u013ciem (gan iz\u0161\u0137\u012blu\u0161ies, gan tie, kas sasniegu\u0161i 50 cm lielu \u010daulas izm\u0113ru), kurus n\u0101kamaj\u0101 gad\u0101 Austr\u0101lijas \u016bde\u0146os izskaloja krast\u0101 vai no\u0137\u0113ra zvejnieki. <\/p>\n\n\n\n

P\u0113t\u012bjum\u0101 piedal\u012bj\u0101s 121 j\u016bras bru\u0146urupucis, no kur\u0101m tika p\u0113t\u012btas piecas sugas: za\u013cais bru\u0146urupucis, j\u016bras bru\u0146urupucis, j\u016bras bru\u0146urupucis, ol\u012bve\u013c\u013cu bru\u0146urupucis un j\u016bras bru\u0146urupu\u010di. <\/p>\n\n\n\n

Klus\u0101 oke\u0101na piekrastes bru\u0146urupu\u010di, za\u013cie bru\u0146urupu\u010di, plakan\u0101s bru\u0146urupuces un ol\u012bvu bru\u0146urupu\u010di plastmasu satur\u0113ja daudz liel\u0101k\u0101 skait\u0101: Turpm\u0101kajos liel\u0101kajos daudzumos (attiec\u012bgi 86%, 83%, 80% un 29%) j\u016bras bru\u0146urupu\u010di bija daudz liel\u0101ki. <\/p>\n\n\n\n

Indijas oke\u0101na piekrast\u0113 plastmasa tika atrasta 28% plakanspuru bru\u0146urupu\u010du, 21% j\u016bras bru\u0146urupu\u010du un 9% za\u013co bru\u0146urupu\u010du. Ab\u0101s piekrast\u0113s tika atrasti septi\u0146i j\u016bras bru\u0146urupu\u010di, t\u0101p\u0113c parauga lielums bija minim\u0101ls. <\/p>\n\n\n\n

Plastmasa netika atrasta nevien\u0101 no ab\u0101s piekrast\u0113s atrastajiem j\u016bras bru\u0146urupu\u010diem. Klus\u0101 oke\u0101na bru\u0146urupu\u010di parasti bija pild\u012bti ar ciet\u0101s plastmasas fragmentiem, kas, visticam\u0101k, bija ieg\u016bti no da\u017e\u0101diem cilv\u0113ka rad\u012btiem priek\u0161metiem, at\u0161\u0137ir\u012bb\u0101 no Indijas oke\u0101na plastmasas, kas galvenok\u0101rt bija \u0161\u0137iedras no zvejas t\u012bkliem vai virv\u0113m.<\/p>\n\n\n\n

Abos oke\u0101nos bija augsta polietil\u0113na, neilona polipropil\u0113na koncentr\u0101cija, ko norija bru\u0146urupu\u010di. <\/p>\n\n\n\n

Nav iesp\u0113jams prec\u012bzi noteikt atrasto fragmentu izcelsmi, jo \u0161ie polim\u0113ri tiek pla\u0161i izmantoti plastmasas izstr\u0101d\u0101jumos. <\/p>\n\n\n\n

Noz\u012bm\u012bgs j\u016bras pies\u0101r\u0146ojuma avots \u016bdens tuvum\u0101 ir izmestie, izjauktie un cit\u0101di izmestie zvejas r\u012bki (ALDFG), kas parasti sast\u0101v no plastmasas \u0161\u0137iedr\u0101m. Da\u013ci\u0146u izm\u0113rs at\u0161\u0137\u012br\u0101s atkar\u012bb\u0101 no bru\u0146urupu\u010du lieluma, parasti no 5 mm l\u012bdz 10 mm. <\/p>\n\n\n\n

P\u0113tnieki cer n\u0101kamaj\u0101 p\u0113t\u012bjuma posm\u0101 izp\u0113t\u012bt, k\u0101 plastmasas uz\u0146em\u0161ana ietekm\u0113 bru\u0146urupu\u010du vesel\u012bbu un izdz\u012bvo\u0161anu. Lai to paveiktu, p\u0113tniekiem un veterin\u0101r\u0101rstiem vis\u0101 pasaul\u0113 b\u016bs cie\u0161i j\u0101sadarbojas. <\/p>\n\n\n\n

T\u0101pat ir svar\u012bgi, lai m\u0113s p\u0101rtrauktu izmest \u016bdenstilp\u0113s atkritumus, kas ne tikai iesaista bru\u0146urupu\u010dus, bet ilgtermi\u0146\u0101 ietekm\u0113s to \u0123en\u0113tisko strukt\u016bru. <\/p>\n\n\n\n

Ja v\u0113laties sa\u0146emt s\u012bk\u0101ku inform\u0101ciju par vi\u0146u veikto p\u0113t\u012bjumu, l\u016bdzu, skatiet t\u0101l\u0101k sniegto atsauci.<\/p>\n\n\n\n

Duncan, Emily M., et al. \"Plastmasas pies\u0101r\u0146ojums un mazi j\u016bras bru\u0146urupu\u010du mazu\u013ci: potenci\u0101ls evol\u016bcijas slazds.\" Frontiers in Marine Science (2021): 961. DOI: 10.3389\/fmars.2021.699521.<\/a><\/p>\n\n\n\n

\"Bru\u0146urupu\u010du<\/a><\/figure>","protected":false},"excerpt":{"rendered":"

Bru\u0146urupu\u010di un plastmasa P\u0113t\u012bjums liecina, ka plastmasas pies\u0101r\u0146ojums laika gait\u0101 iesaista j\u016bras bru\u0146urupu\u010du mazu\u013cus. J\u016bras bru\u0146urupu\u010du mazu\u013ci p\u0113c iz\u0161\u0137il\u0161an\u0101s pamet pludmales, lai augtu oke\u0101na diben\u0101. Turkl\u0101t laika gait\u0101 \u0161aj\u0101s straum\u0113s ir sakr\u0101jies arvien liel\u0101ks daudzums plastmasas, ko daudzi bru\u0146urupu\u010di norij, barojoties piekrastes tuvum\u0101. Bru\u0146urupu\u010du mazu\u013ci, jo \u012bpa\u0161i bru\u0146urupu\u010di, [...]<\/p>","protected":false},"author":18,"featured_media":14694,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[959,28],"tags":[707,854,554,853],"yoast_head":"\nYoung sea turtles trapped by plastic: Evolutionary Trap - MTG<\/title>\n<meta name=\"description\" content=\"Study shows that plastic pollution traps young sea turtles over time. 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