{"id":4253,"date":"2021-08-23T18:10:53","date_gmt":"2021-08-23T18:10:53","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=4253"},"modified":"2021-08-23T18:10:53","modified_gmt":"2021-08-23T18:10:53","slug":"mega-rafting-japanese-species-cross-pacific","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/marine-biology\/mega-rafting-japanese-species-cross-pacific\/","title":{"rendered":"Si\u00eau b\u00e8 m\u1ea3ng g\u00e2y ra b\u1edfi s\u00f3ng th\u1ea7n: C\u00e1c lo\u00e0i Nh\u1eadt B\u1ea3n v\u01b0\u1ee3t Th\u00e1i B\u00ecnh D\u01b0\u01a1ng"},"content":{"rendered":"

Si\u00eau b\u00e8 m\u1ea3ng g\u00e2y ra b\u1edfi s\u00f3ng th\u1ea7n: C\u00e1c lo\u00e0i Nh\u1eadt B\u1ea3n v\u01b0\u1ee3t Th\u00e1i B\u00ecnh D\u01b0\u01a1ng<\/h2>\n\n

Th\u1ea3m h\u1ecda Fukushima n\u0103m 2011<\/h2>\n\n

V\u00e0o n\u0103m 2011, m\u1ed9t tr\u1eadn \u0111\u1ed9ng \u0111\u1ea5t v\u00e0 s\u00f3ng th\u1ea7n m\u1ea1nh \u0111\u00e3 t\u1ea5n c\u00f4ng Fukushima, Nh\u1eadt B\u1ea3n, g\u00e2y ra s\u1ef1 t\u00e0n ph\u00e1 tr\u00ean di\u1ec7n r\u1ed9ng. Gi\u1eefa th\u1ea3m k\u1ecbch, m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng \u0111\u00e1ng kinh ng\u1ea1c \u0111\u00e3 x\u1ea3y ra: h\u00e0ng tr\u0103m lo\u00e0i sinh v\u1eadt bi\u1ec3n Nh\u1eadt B\u1ea3n \u0111\u00e3 b\u1ecb cu\u1ed1n \u0111i tr\u00ean nh\u1eefng m\u1ea3nh v\u1ee1 tr\u00f4i n\u1ed5i b\u0103ng qua Th\u00e1i B\u00ecnh D\u01b0\u01a1ng.<\/p>\n\n

Si\u00eau b\u00e8 m\u1ea3ng: M\u1ed9t h\u00e0nh tr\u00ecnh sinh h\u1ecdc<\/h2>\n\n

Si\u00eau b\u00e8 m\u1ea3ng l\u00e0 m\u1ed9t qu\u00e1 tr\u00ecnh sinh h\u1ecdc trong \u0111\u00f3 c\u00e1c sinh v\u1eadt \u0111\u01b0\u1ee3c d\u00f2ng h\u1ea3i l\u01b0u mang \u0111i t\u1eeb m\u1ed9t v\u00f9ng \u0111\u1ea5t n\u00e0y sang m\u1ed9t v\u00f9ng \u0111\u1ea5t kh\u00e1c tr\u00ean nh\u1eefng m\u1ea3nh v\u1ee1 tr\u00f4i n\u1ed5i. \u0110\u00e2y l\u00e0 m\u1ed9t s\u1ef1 ki\u1ec7n hi\u1ebfm g\u1eb7p, nh\u01b0ng \u0111\u00e3 \u0111\u00f3ng m\u1ed9t vai tr\u00f2 quan tr\u1ecdng trong s\u1ef1 ph\u00e1t t\u00e1n c\u1ee7a c\u00e1c lo\u00e0i trong su\u1ed1t l\u1ecbch s\u1eed.<\/p>\n\n

Tr\u01b0\u1edbc tr\u1eadn s\u00f3ng th\u1ea7n n\u0103m 2011, kh\u00f4ng c\u00f3 ghi ch\u00e9p n\u00e0o v\u1ec1 vi\u1ec7c c\u00e1c sinh v\u1eadt bi\u1ec3n th\u1ef1c hi\u1ec7n h\u00e0nh tr\u00ecnh gian nan b\u0103ng qua Th\u00e1i B\u00ecnh D\u01b0\u01a1ng t\u1eeb Nh\u1eadt B\u1ea3n \u0111\u1ebfn B\u1eafc M\u1ef9. Tuy nhi\u00ean, m\u1ed9t nghi\u00ean c\u1ee9u m\u1edbi \u0111\u01b0\u1ee3c c\u00f4ng b\u1ed1 tr\u00ean t\u1ea1p ch\u00ed Science \u0111\u00e3 l\u00e0m s\u00e1ng t\u1ecf s\u1ef1 ki\u1ec7n phi th\u01b0\u1eddng n\u00e0y.<\/p>\n\n

C\u00e1c lo\u00e0i Nh\u1eadt B\u1ea3n b\u1eaft chuy\u1ebfn \u0111i<\/h2>\n\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 kh\u1ea3o s\u00e1t c\u00e1c m\u1ea3nh v\u1ee1 do s\u00f3ng th\u1ea7n \u0111\u1ec3 l\u1ea1i d\u1ecdc theo b\u1edd bi\u1ec3n Th\u00e1i B\u00ecnh D\u01b0\u01a1ng c\u1ee7a B\u1eafc M\u1ef9 v\u00e0 ph\u00e1t hi\u1ec7n ra h\u01a1n 600 m\u1ea3nh c\u00f3 g\u1ea7n 300 lo\u00e0i Nh\u1eadt B\u1ea3n c\u01b0 tr\u00fa. Trong s\u1ed1 \u0111\u00f3 c\u00f3 s\u00ean bi\u1ec3n, h\u00e0u, h\u00e0 bi\u1ec3n v\u00e0 th\u1eadm ch\u00ed c\u1ea3 hai lo\u00e0i c\u00e1.<\/p>\n\n

K\u1ebft qu\u1ea3 nghi\u00ean c\u1ee9u ch\u1ec9 ra r\u1eb1ng m\u1eb7c d\u00f9 si\u00eau b\u00e8 m\u1ea3ng l\u00e0 m\u1ed9t hi\u1ec7n t\u01b0\u1ee3ng t\u1ef1 nhi\u00ean, nh\u01b0ng \u1ea3nh h\u01b0\u1edfng c\u1ee7a con ng\u01b0\u1eddi \u0111\u00e3 l\u00e0m thay \u0111\u1ed5i \u0111\u00e1ng k\u1ec3 qu\u00e1 tr\u00ecnh n\u00e0y. V\u1eadt li\u1ec7u nh\u1ef1a v\u00e0 polystyrene, c\u00f3 th\u1ec3 n\u1ed5i tr\u00ean m\u1eb7t n\u01b0\u1edbc trong nhi\u1ec1u n\u0103m, \u0111\u00e3 cung c\u1ea5p m\u1ed9t n\u1ec1n t\u1ea3ng \u1ed5n \u0111\u1ecbnh \u0111\u1ec3 c\u00e1c sinh v\u1eadt n\u00e0y c\u00f3 th\u1ec3 s\u1ed1ng s\u00f3t trong su\u1ed1t h\u00e0nh tr\u00ecnh d\u00e0i c\u1ee7a ch\u00fang.<\/p>\n\n

Vai tr\u00f2 c\u1ee7a \u00f4 nhi\u1ec5m nh\u1ef1a<\/h2>\n\n

\u00d4 nhi\u1ec5m nh\u1ef1a \u0111\u00e3 tr\u1edf th\u00e0nh m\u1ed9t v\u1ea5n \u0111\u1ec1 ph\u1ed5 bi\u1ebfn \u1edf c\u00e1c \u0111\u1ea1i d\u01b0\u01a1ng c\u1ee7a ch\u00fang ta v\u00e0 t\u00e1c \u0111\u1ed9ng c\u1ee7a n\u00f3 \u0111\u1ed1i v\u1edbi sinh v\u1eadt bi\u1ec3n l\u00e0 kh\u00f4ng th\u1ec3 ph\u1ee7 nh\u1eadn. Trong tr\u01b0\u1eddng h\u1ee3p c\u1ee7a tr\u1eadn s\u00f3ng th\u1ea7n n\u0103m 2011, r\u00e1c th\u1ea3i nh\u1ef1a \u0111\u00e3 tr\u1edf th\u00e0nh phao c\u1ee9u sinh cho c\u00e1c lo\u00e0i Nh\u1eadt B\u1ea3n, cho ph\u00e9p ch\u00fang v\u01b0\u1ee3t qua nh\u1eefng kho\u1ea3ng c\u00e1ch r\u1ea5t l\u1edbn v\u00e0 thi\u1ebft l\u1eadp c\u00e1c qu\u1ea7n th\u1ec3 m\u1edbi \u1edf B\u1eafc M\u1ef9.<\/p>\n\n

\u0110\u00f3ng g\u00f3p c\u1ee7a ph\u00e1t tri\u1ec3n ven bi\u1ec3n<\/h2>\n\n

S\u1ef1 ph\u00e1t tri\u1ec3n ven bi\u1ec3n c\u0169ng g\u00f3p ph\u1ea7n l\u00e0m t\u0103ng t\u1ea7n su\u1ea5t c\u1ee7a c\u00e1c s\u1ef1 ki\u1ec7n si\u00eau b\u00e8 m\u1ea3ng. C\u00e1c d\u1ef1 \u00e1n c\u01a1 s\u1edf h\u1ea1 t\u1ea7ng l\u1edbn d\u1ecdc b\u1edd bi\u1ec3n th\u01b0\u1eddng d\u1eabn \u0111\u1ebfn vi\u1ec7c t\u00edch t\u1ee5 c\u00e1c m\u1ea3nh v\u1ee1, c\u00f3 th\u1ec3 b\u1ecb cu\u1ed1n tr\u00f4i b\u1edfi c\u00e1c th\u1ea3m h\u1ecda thi\u00ean nhi\u00ean nh\u01b0 s\u00f3ng th\u1ea7n v\u00e0 b\u00e3o.<\/p>\n\n

Nh\u1eefng t\u00e1c \u0111\u1ed9ng sinh th\u00e1i<\/h2>\n\n

S\u1ef1 xu\u1ea5t hi\u1ec7n c\u1ee7a c\u00e1c lo\u00e0i Nh\u1eadt B\u1ea3n \u1edf B\u1eafc M\u1ef9 \u0111\u00e3 l\u00e0m d\u1ea5y l\u00ean m\u1ed1i lo ng\u1ea1i v\u1ec1 nh\u1eefng t\u00e1c \u0111\u1ed9ng sinh th\u00e1i ti\u1ec1m t\u00e0ng. M\u1eb7c d\u00f9 c\u00f2n qu\u00e1 s\u1edbm \u0111\u1ec3 n\u00f3i li\u1ec7u b\u1ea5t k\u1ef3 lo\u00e0i n\u00e0o trong s\u1ed1 n\u00e0y s\u1ebd tr\u1edf th\u00e0nh c\u01b0 d\u00e2n c\u1ed1 \u0111\u1ecbnh hay kh\u00f4ng, nh\u01b0ng nghi\u00ean c\u1ee9u ch\u1ec9 ra r\u1eb1ng si\u00eau b\u00e8 m\u1ea3ng c\u00f3 th\u1ec3 g\u00e2y ra nh\u1eefng h\u1eadu qu\u1ea3 l\u00e2u d\u00e0i \u0111\u1ed1i v\u1edbi c\u00e1c h\u1ec7 sinh th\u00e1i bi\u1ec3n.<\/p>\n\n

K\u1ef7 nguy\u00ean m\u1edbi c\u1ee7a si\u00eau b\u00e8 m\u1ea3ng<\/h2>\n\n

S\u1ef1 k\u1ebft h\u1ee3p gi\u1eefa \u00f4 nhi\u1ec5m nh\u1ef1a v\u00e0 ph\u00e1t tri\u1ec3n ven bi\u1ec3n \u0111\u00e3 t\u1ea1o ra m\u1ed9t k\u1ef7 nguy\u00ean m\u1edbi c\u1ee7a si\u00eau b\u00e8 m\u1ea3ng, c\u00f3 nh\u1eefng t\u00e1c \u0111\u1ed9ng \u0111\u00e1ng k\u1ec3 \u0111\u1ebfn \u0111a d\u1ea1ng sinh h\u1ecdc bi\u1ec3n v\u00e0 t\u01b0\u01a1ng t\u00e1c sinh th\u00e1i.<\/p>\n\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u tin r\u1eb1ng nh\u1eefng s\u1ef1 ki\u1ec7n n\u00e0y c\u00f3 kh\u1ea3 n\u0103ng tr\u1edf n\u00ean th\u01b0\u1eddng xuy\u00ean h\u01a1n v\u00e0 lan r\u1ed9ng h\u01a1n trong t\u01b0\u01a1ng lai, v\u00ec m\u1ef1c n\u01b0\u1edbc bi\u1ec3n d\u00e2ng cao v\u00e0 \u00f4 nhi\u1ec5m nh\u1ef1a ti\u1ebfp t\u1ee5c t\u00edch t\u1ee5 trong c\u00e1c \u0111\u1ea1i d\u01b0\u01a1ng c\u1ee7a ch\u00fang ta.<\/p>\n\n

M\u1ea3nh v\u1ee1 nh\u1ef1a nh\u1ecf: M\u1ed1i \u0111e d\u1ecda ti\u1ec1m \u1ea9n<\/h2>\n\n

M\u1eb7c d\u00f9 c\u00e1c m\u1ea3nh v\u1ee1 l\u1edbn, ch\u1eb3ng h\u1ea1n nh\u01b0 c\u1ea7u c\u1ea3ng v\u00e0 t\u00e0u \u0111\u00e1nh c\u00e1, l\u00e0 tr\u1ecdng t\u00e2m c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c nghi\u00ean c\u1ee9u v\u1ec1 si\u00eau b\u00e8 m\u1ea3ng, c\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u nh\u1ea5n m\u1ea1nh t\u1ea7m quan tr\u1ecdng c\u1ee7a c\u00e1c m\u1ea3nh v\u1ee1 nh\u1ef1a nh\u1ecf trong vi\u1ec7c v\u1eadn chuy\u1ec3n c\u00e1c sinh v\u1eadt bi\u1ec3n.<\/p>\n\n

Nh\u1eefng m\u1ea3nh nh\u1ef1a nh\u1ecf c\u00f3 th\u1ec3 \u0111\u00f3ng vai tr\u00f2 nh\u01b0 b\u00e8 cho c\u00e1c lo\u00e0i, mang ch\u00fang \u0111i xa v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng \u0111\u01b0a ch\u00fang \u0111\u1ebfn c\u00e1c h\u1ec7 sinh th\u00e1i m\u1edbi. M\u1eb7t n\u00e0y c\u1ee7a si\u00eau b\u00e8 m\u1ea3ng \u0111\u01b0\u1ee3c nghi\u00ean c\u1ee9u \u00edt h\u01a1n, nh\u01b0ng c\u00f3 th\u1ec3 c\u00f3 nh\u1eefng t\u00e1c \u0111\u1ed9ng sinh th\u00e1i \u0111\u00e1ng k\u1ec3.<\/p>\n\n

Nghi\u00ean c\u1ee9u v\u00e0 gi\u00e1m s\u00e1t \u0111ang di\u1ec5n ra<\/h2>\n\n

C\u00e1c nh\u00e0 khoa h\u1ecdc \u0111ang t\u00edch c\u1ef1c theo d\u00f5i s\u1ef1 xu\u1ea5t hi\u1ec7n v\u00e0 \u0111\u1ecbnh c\u01b0 c\u1ee7a c\u00e1c lo\u00e0i Nh\u1eadt B\u1ea3n \u1edf B\u1eafc M\u1ef9. C\u1ea7n ti\u1ebfn h\u00e0nh nghi\u00ean c\u1ee9u d\u00e0i h\u1ea1n \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh t\u00e1c \u0111\u1ed9ng sinh th\u00e1i c\u1ee7a nh\u1eefng s\u1ef1 ki\u1ec7n n\u00e0y v\u00e0 ph\u00e1t tri\u1ec3n c\u00e1c chi\u1ebfn l\u01b0\u1ee3c \u0111\u1ec3 gi\u1ea3m thi\u1ec3u nh\u1eefng h\u1eadu qu\u1ea3 ti\u1ec1m t\u00e0ng c\u1ee7a ch\u00fang.<\/p>","protected":false},"excerpt":{"rendered":"

Si\u00eau b\u00e8 m\u1ea3ng g\u00e2y ra b\u1edfi s\u00f3ng th\u1ea7n: C\u00e1c lo\u00e0i Nh\u1eadt B\u1ea3n v\u01b0\u1ee3t Th\u00e1i B\u00ecnh D\u01b0\u01a1ng Th\u1ea3m h\u1ecda Fukushima n\u0103m 2011 V\u00e0o n\u0103m 2011, m\u1ed9t tr\u1eadn \u0111\u1ed9ng \u0111\u1ea5t v\u00e0 s\u00f3ng…<\/p>\n","protected":false},"author":6,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[84],"tags":[7786,1886,7785,263,7787,361,479,4301],"class_list":["post-4253","post","type-post","status-publish","format-standard","hentry","category-marine-biology","tag-japanese-species","tag-marine-ecosystems","tag-mega-rafting","tag-plastic-pollution","tag-coastal-development","tag-marine-biology","tag-pacific-ocean","tag-tsunami"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/4253","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=4253"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/4253\/revisions"}],"predecessor-version":[{"id":4254,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/4253\/revisions\/4254"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=4253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=4253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=4253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}