{"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\/lt\/jaunos-juru-vezles-patekusios-i-plastikinius-evoliucinius-spastus\/","title":{"rendered":"Jauni j\u016briniai v\u0117\u017eliai patenka \u012f plastiko sp\u0105stus: evoliuciniai sp\u0105stai"},"content":{"rendered":"

V\u0117\u017eliai ir plastikas<\/h2>\n\n\n\n

Tyrimas rodo, kad plastiko tar\u0161a ilgainiui \u012fkalina jaunus j\u016br\u0173 v\u0117\u017elius. <\/p>\n\n\n\n

I\u0161sirit\u0119 j\u016br\u0173 v\u0117\u017eli\u0173 jaunikliai palieka papl\u016bdimius, kad gal\u0117t\u0173 augti vandenyno dugne. Be to, laikui b\u0117gant \u0161iose srov\u0117se susikaupia vis daugiau plastiko, kur\u012f daugelis v\u0117\u017eli\u0173 praryja maitindamiesi netoli kranto. <\/p>\n\n\n\n

Manoma, kad ma\u017eieji v\u0117\u017eliukai, ypa\u010d k\u0105 tik i\u0161sirit\u0119 ir gyvenantys vandenyno dugne, yra jautriausi plastiko tar\u0161ai. Nepaisant to, d\u0117l atokios j\u0173 buvimo vietos prie j\u0173 pri\u0117jimas ir vertinimas yra ribotas. <\/p>\n\n\n\n

\u012e tyrimas<\/a> vadovaujamas Ekseterio universitetas<\/a>, Australijos rytin\u0117je (Ramiojo vandenyno) ir vakarin\u0117je (Indijos vandenyno) pakrant\u0117se tyr\u0117jai aptiko j\u016brinio plastiko v\u0117\u017eli\u0173 jaunikli\u0173 viduje.<\/p>\n\n\n

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

Ar v\u0117\u017eliai gali patekti \u012f evoliucinius sp\u0105stus?<\/h2>\n\n\n\n

J\u016br\u0173 sistemoms jau daugel\u012f met\u0173 daro poveik\u012f plastiko \u0161iuk\u0161l\u0117s, tod\u0117l buvo bandoma \u012fvertinti, kaip jos veikia daugiau kaip 700 r\u016b\u0161i\u0173. <\/p>\n\n\n\n

Plastiko prarijimas, \u012fsipainiojimas \u012f j\u012f ir ekosistem\u0173 nykimas - visa tai yra plastiko keliama gr\u0117sm\u0117. Vis da\u017eniau suvokiama, kad j\u016br\u0173 v\u0117\u017eliai vartoja plastik\u0105, ta\u010diau duomen\u0173, \u012frodan\u010di\u0173 plastiko nurijimo poveik\u012f populiacijai, nerasta. <\/p>\n\n\n\n

Atviri vandenys yra puiki aplinka v\u0117\u017eliams vystytis, nes pl\u0117\u0161r\u016bn\u0173 yra nedaug, tod\u0117l tai puiki aplinka jiems vystytis. J\u016br\u0173 v\u0117\u017eli\u0173 jaunikliai neturi ai\u0161kios mitybos; jie vartoja bet k\u0105 ir beveik visk\u0105, \u012fskaitant plastik\u0105. <\/p>\n\n\n\n

J\u016br\u0173 v\u0117\u017eliai gali b\u016bti labiau pa\u017eeid\u017eiami aplinkos ter\u0161al\u0173 d\u0117l savo buvein\u0117s ir elgsenos tam tikrais gyvenimo ciklo etapais. <\/p>\n\n\n\n

I\u0161skyrus plok\u0161\u010diadugnius v\u0117\u017elius, po i\u0161siritimo v\u0117\u017eliai paprastai gyvena vandenyn\u0173 zonose, kur j\u0173 paprastai b\u016bna nedaug, o sausumos ruo\u017euose j\u0173 b\u016bna daug. Po i\u0161siritimo v\u0117\u017eliai priklauso nuo pakran\u010di\u0173 vanden\u0173. Tik retais atvejais jis neria gilyn \u012f vandenyn\u0105, jei maitinasi netoli potvyni\u0173 ir atosl\u016bgi\u0173 linij\u0173, vandenyno krant\u0173 ar prie kranto linijos priart\u0117jusi\u0173 kalnag\u016bbri\u0173. Da\u017enai jiems b\u016bdingas epipelaginis maitinimasis. <\/p>\n\n\n\n

\u012erodyta, kad d\u0117l ne maistini\u0173 med\u017eiag\u0173 gali b\u016bti praskiesta mityba, suma\u017e\u0117ti energijos kiekis j\u0173 organizme, taip pat kai kuri\u0173 r\u016b\u0161i\u0173 gyv\u016bnai gali pa\u017eeisti vir\u0161kinimo kanal\u0105, kloak\u0105 ir \u0161lapimo p\u016bsl\u0119.  <\/p>\n\n\n

\n
\"Mind<\/a>
Mind the Graph \u0161ablonas: Vandenyno tema<\/figcaption><\/figure><\/div>\n\n\n

Tyrimo rezultatai<\/h2>\n\n\n\n

Buvo atliktas Australijos vandenyse \u012f krant\u0105 i\u0161plaut\u0173 arba kitais metais \u017evej\u0173 sugaut\u0173 j\u016brini\u0173 v\u0117\u017eli\u0173 jaunikli\u0173 (i\u0161siritusi\u0173 ir pasiekusi\u0173 50 cm dyd\u017eio kiaut\u0105) tyrimas. <\/p>\n\n\n\n

Tyrime dalyvavo 121 j\u016br\u0173 v\u0117\u017elys, i\u0161 kuri\u0173 buvo tiriamos penkios r\u016b\u0161ys: \u017ealieji v\u0117\u017eliai, paprastieji v\u0117\u017eliai, siauraakiai v\u0117\u017eliai, alyvmediniai v\u0117\u017eliai ir plok\u0161\u010diaakiai v\u0117\u017eliai. <\/p>\n\n\n\n

Ramiojo vandenyno pakrant\u0117je daug daugiau plastiko raganosi\u0173, \u017eali\u0173j\u0173 v\u0117\u017eli\u0173, plok\u0161\u010diagalvi\u0173 ir alyvini\u0173 v\u0117\u017eli\u0173: Atitinkamai 86%, 83%, 80% ir 29%. <\/p>\n\n\n\n

Indijos vandenyno pakrant\u0117je plastiko rasta 28% plok\u0161\u010diagalvi\u0173 v\u0117\u017eli\u0173, 21% balini\u0173 v\u0117\u017eli\u0173 ir 9% \u017eali\u0173j\u0173 v\u0117\u017eli\u0173. Abiejose pakrant\u0117se rasta po septynis buo\u017egalvius v\u0117\u017elius, taigi imtis buvo minimali. <\/p>\n\n\n\n

Plastiko nerasta n\u0117 viename i\u0161 abiejose pakrant\u0117se rast\u0173 balini\u0173 v\u0117\u017eli\u0173. Ramiojo vandenyno v\u0117\u017eliai paprastai buvo prikim\u0161ti kietojo plastiko fragment\u0173, grei\u010diausiai i\u0161 \u012fvairi\u0173 \u017emogaus sukurt\u0173 daikt\u0173, prie\u0161ingai nei Indijos vandenyno v\u0117\u017eliai, kurie daugiausia buvo i\u0161 \u017evejybini\u0173 tinkl\u0173 ar virvi\u0173.<\/p>\n\n\n\n

Abiejuose vandenynuose buvo didel\u0117 polietileno, nailono polipropileno, kur\u012f prarijo v\u0117\u017eliai, koncentracija. <\/p>\n\n\n\n

Kadangi \u0161ie polimerai labai pla\u010diai naudojami plastikiniuose gaminiuose, n\u0117ra galimyb\u0117s tiksliai nustatyti rast\u0173 fragment\u0173 \u0161altinio. <\/p>\n\n\n\n

Didel\u012f j\u016bros ter\u0161al\u0173 \u0161altin\u012f prie vandens sudaro i\u0161mesti, i\u0161montuoti ir kitaip i\u0161mesti \u017evejybos \u012frankiai (ALDFG), kurie da\u017eniausiai b\u016bna pagaminti i\u0161 plastikini\u0173 pluo\u0161t\u0173. Daleli\u0173 dydis skyr\u0117si kartu su v\u0117\u017elio dyd\u017eiu, da\u017eniausiai nuo 5 mm iki 10 mm. <\/p>\n\n\n\n

Kitame tyrimo etape mokslininkai tikisi i\u0161tirti, kaip plastiko prarijimas veikia v\u0117\u017eli\u0173 sveikat\u0105 ir i\u0161gyvenamum\u0105. Tam reik\u0117s glaud\u017eiai bendradarbiauti su viso pasaulio mokslininkais ir veterinarijos gydytojais. <\/p>\n\n\n\n

Be to, mums taip pat svarbu nustoti pilti \u012f vandens telkinius atliekas, kurios ne tik supainioja v\u0117\u017elius, bet ir ilgainiui paveiks j\u0173 genetin\u0119 strukt\u016br\u0105. <\/p>\n\n\n\n

Jei norite gauti daugiau informacijos apie j\u0173 tyrimus, \u017er. toliau pateikt\u0105 nuorod\u0105.<\/p>\n\n\n\n

Duncan, Emily M. ir kt. \"Plastiko tar\u0161a ir ma\u017ei j\u016br\u0173 v\u0117\u017eli\u0173 jaunikliai: galimi evoliuciniai sp\u0105stai\". J\u016br\u0173 mokslo ribos (2021): 961. DOI: 10.3389\/fmars.2021.699521<\/a><\/p>\n\n\n\n

\"V\u0117\u017elio,<\/a><\/figure>","protected":false},"excerpt":{"rendered":"

V\u0117\u017eliai ir plastikas Tyrimas rodo, kad plastiko tar\u0161a ilgainiui \u012fkalina jaunus j\u016br\u0173 v\u0117\u017elius. I\u0161sirit\u0119 j\u016br\u0173 v\u0117\u017eli\u0173 jaunikliai palieka papl\u016bdimius, kad gal\u0117t\u0173 augti vandenyno dugne. Be to, laikui b\u0117gant \u0161iose srov\u0117se susikaupia vis daugiau plastiko, kur\u012f daugelis v\u0117\u017eli\u0173 praryja maitindamiesi netoli kranto. V\u0117\u017eliuk\u0173 jaunikliai, ypa\u010d [...]<\/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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