{"id":13671,"date":"2026-02-22T01:26:17","date_gmt":"2026-02-22T01:26:17","guid":{"rendered":"https:\/\/www.lifescienceart.com\/?p=13671"},"modified":"2026-02-22T01:26:17","modified_gmt":"2026-02-22T01:26:17","slug":"salmon-magnetic-navigation-gps","status":"publish","type":"post","link":"https:\/\/www.lifescienceart.com\/vi\/science\/animal-behavior\/salmon-magnetic-navigation-gps\/","title":{"rendered":"C\u00e1 h\u1ed3ng d\u00f9ng t\u1eeb tr\u01b0\u1eddng Tr\u00e1i \u0110\u1ea5t l\u00e0m GPS: B\u00ed m\u1eadt di c\u01b0 ng\u00e0n h\u1ea3i l\u00fd"},"content":{"rendered":"

GPS \u0111\u00e1ng kinh ng\u1ea1c c\u1ee7a c\u00e1 h\u1ed3i: D\u00f9ng t\u1eeb tr\u01b0\u1eddng Tr\u00e1i \u0110\u1ea5t \u0111\u1ec3 \u0111\u1ecbnh h\u01b0\u1edbng<\/h2>\n\n

\u0110\u1ecbnh h\u01b0\u1edbng b\u1eb1ng t\u1eeb tr\u01b0\u1eddng: La b\u00e0n c\u1ee7a thi\u00ean nhi\u00ean<\/h2>\n\n

T\u1eeb tr\u01b0\u1eddng Tr\u00e1i \u0110\u1ea5t, gi\u1ed1ng nh\u01b0 m\u1ed9t b\u1ea3n \u0111\u1ed3 v\u00f4 h\u00ecnh, d\u1eabn d\u1eaft nhi\u1ec1u lo\u00e0i \u0111\u1ed9ng v\u1eadt bi\u1ec3n, trong \u0111\u00f3 c\u00f3 c\u00e1 h\u1ed3i, th\u1ef1c hi\u1ec7n nh\u1eefng cu\u1ed9c h\u00e0nh tr\u00ecnh phi th\u01b0\u1eddng. Kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u01b0\u1edbng b\u1ea9m sinh n\u00e0y cho ph\u00e9p ch\u00fang tr\u1edf v\u1ec1 n\u01a1i sinh ra sau nhi\u1ec1u n\u0103m s\u1ed1ng ngo\u00e0i kh\u01a1i xa, th\u01b0\u1eddng di chuy\u1ec3n h\u00e0ng ngh\u00ecn d\u1eb7m.<\/p>\n\n

\u1ea4n ch\u1ee9ng: M\u00e3 h\u00f3a b\u1ea3n \u0111\u1ed3 t\u1eeb tr\u01b0\u1eddng<\/h2>\n\n

Khi c\u00e1 h\u1ed3i con n\u1edf, ch\u00fang ghi nh\u1edb \u0111\u1eb7c tr\u01b0ng t\u1eeb tr\u01b0\u1eddng c\u1ee7a n\u01a1i sinh trong b\u1ea3n \u0111\u1ed3 tinh th\u1ea7n. Khi r\u1eddi kh\u1ecfi v\u00f9ng n\u01b0\u1edbc ng\u1ecdt \u0111\u1ec3 ra bi\u1ec3n kh\u01a1i, ch\u00fang mang theo b\u1ea3n thi\u1ebft k\u1ebf t\u1eeb tr\u01b0\u1eddng n\u00e0y.<\/p>\n\n

S\u1ef1 tr\u00f4i d\u1ea1t t\u1eeb tr\u01b0\u1eddng \u0111\u1ecba t\u1eeb: C\u1ea3nh quan thay \u0111\u1ed5i<\/h2>\n\n

T\u1eeb tr\u01b0\u1eddng Tr\u00e1i \u0110\u1ea5t kh\u00f4ng t\u0129nh t\u1ea1i m\u00e0 d\u1ea7n d\u1ea7n thay \u0111\u1ed5i theo th\u1eddi gian, hi\u1ec7n t\u01b0\u1ee3ng n\u00e0y \u0111\u01b0\u1ee3c g\u1ecdi l\u00e0 s\u1ef1 tr\u00f4i d\u1ea1t t\u1eeb tr\u01b0\u1eddng \u0111\u1ecba t\u1eeb. \u0110i\u1ec1u n\u00e0y c\u00f3 ngh\u0129a l\u00e0 \u0111\u1eb7c tr\u01b0ng t\u1eeb tr\u01b0\u1eddng c\u1ee7a m\u1ed9t \u0111\u1ecba \u0111i\u1ec3m thay \u0111\u1ed5i nh\u1eb9 t\u1eebng n\u0103m.<\/p>\n\n

T\u00e0i ngh\u1ec7 \u0111\u1ecbnh h\u01b0\u1edbng c\u1ee7a c\u00e1 h\u1ed3i<\/h2>\n\n

C\u00e1 h\u1ed3i d\u00f9ng t\u1eeb tr\u01b0\u1eddng nh\u01b0 m\u1ed9t la b\u00e0n \u0111\u1ec3 ch\u1ec9 h\u01b0\u1edbng cho h\u00e0nh tr\u00ecnh tr\u1edf v\u1ec1. Ch\u00fang so s\u00e1nh t\u1eeb tr\u01b0\u1eddng hi\u1ec7n t\u1ea1i t\u1ea1i c\u00e1c \u0111i\u1ec3m v\u00e0o ti\u1ec1m n\u0103ng v\u1edbi \u0111\u1eb7c tr\u01b0ng t\u1eeb tr\u01b0\u1eddng \u0111\u00e3 ghi nh\u1edb l\u00fac sinh. V\u1ecbnh c\u00f3 t\u1eeb tr\u01b0\u1eddng g\u1ea7n kh\u1edbp nh\u1ea5t s\u1ebd \u0111\u01b0\u1ee3c ch\u1ecdn l\u00e0m \u0111\u01b0\u1eddng v\u1ec1.<\/p>\n\n

C\u00e1 h\u1ed3i s\u00f4ng Fraser: M\u1ed9t tr\u01b0\u1eddng h\u1ee3p nghi\u00ean c\u1ee9u<\/h2>\n\n

C\u00e1c nh\u00e0 nghi\u00ean c\u1ee9u \u0111\u00e3 nghi\u00ean c\u1ee9u c\u00e1 h\u1ed3i sockeye t\u1eeb s\u00f4ng Fraser, British Columbia, g\u1eb7p \u0111\u1ea3o Vancouver tr\u00ean \u0111\u01b0\u1eddng tr\u1edf v\u1ec1. H\u1ecd ph\u00e1t hi\u1ec7n l\u1ef1a ch\u1ecdn v\u1ecbnh (ph\u00eda b\u1eafc hay ph\u00eda nam) c\u1ee7a c\u00e1 h\u1ed3i ph\u1ee5 thu\u1ed9c v\u00e0o m\u1ee9c \u0111\u1ed9 t\u1eeb tr\u01b0\u1eddng t\u1ea1i m\u1ed7i v\u1ecbnh gi\u1ed1ng \u0111\u1eb7c tr\u01b0ng t\u1eeb tr\u01b0\u1eddng c\u1ee7a s\u00f4ng Fraser hai n\u0103m tr\u01b0\u1edbc, khi ch\u00fang r\u1eddi s\u00f4ng \u0111\u1ec3 ki\u1ebfm \u0103n ngo\u00e0i bi\u1ec3n.<\/p>\n\n

H\u00e0m \u00fd cho b\u1ea3o t\u1ed3n c\u00e1 h\u1ed3i<\/h2>\n\n

Hi\u1ec3u \u0111\u1ecbnh h\u01b0\u1edbng t\u1eeb tr\u01b0\u1eddng c\u1ee7a c\u00e1 h\u1ed3i r\u1ea5t quan tr\u1ecdng cho c\u1ea3 c\u00e1 h\u1ed3i hoang d\u00e3 v\u00e0 nu\u00f4i c\u1ea5y. Tr\u1ea1i \u01b0\u01a1ng c\u1ea7n \u0111\u1ea3m b\u1ea3o t\u1eeb tr\u01b0\u1eddng kh\u00f4ng b\u1ecb bi\u1ebfn d\u1ea1ng b\u1edfi d\u00e2y \u0111i\u1ec7n hay \u1ed1ng s\u1eaft \u0111\u1ec3 kh\u1ea3 n\u0103ng \u0111\u1ecbnh h\u01b0\u1edbng \u0111\u1ea1t t\u1ed1i \u01b0u.<\/p>\n\n

C\u00e1c \u1ee9ng d\u1ee5ng \u0111\u1ecbnh h\u01b0\u1edbng t\u1eeb tr\u01b0\u1eddng kh\u00e1c<\/h2>\n\n

Ngo\u00e0i c\u00e1 h\u1ed3i, c\u00e1c \u0111\u1ed9ng v\u1eadt kh\u00e1c nh\u01b0 r\u00f9a bi\u1ec3n v\u00e0 c\u00e1 ng\u1eeb v\u00e2y xanh c\u0169ng d\u00f9ng t\u1eeb tr\u01b0\u1eddng Tr\u00e1i \u0110\u1ea5t \u0111\u1ec3 \u0111\u1ecbnh h\u01b0\u1edbng. Kh\u1ea3 n\u0103ng \u0111\u00e1ng kinh ng\u1ea1c n\u00e0y \u0111\u00e3 truy\u1ec1n c\u1ea3m h\u1ee9ng cho nh\u00e0 khoa h\u1ecdc kh\u00e1m ph\u00e1 ti\u1ec1m n\u0103ng d\u00f9ng t\u1eeb tr\u01b0\u1eddng h\u1ed7 tr\u1ee3 b\u1ea3o t\u1ed3n v\u00e0 qu\u1ea3n l\u00fd c\u00e1c lo\u00e0i bi\u1ec3n kh\u00e1c.<\/p>\n\n

Nhi\u1ec5u t\u1eeb tr\u01b0\u1eddng: M\u1ed1i \u0111e d\u1ecda ti\u1ec1m t\u00e0ng<\/h2>\n\n

Ho\u1ea1t \u0111\u1ed9ng c\u1ee7a con ng\u01b0\u1eddi, nh\u01b0 \u0111\u01b0\u1eddng d\u00e2y \u0111i\u1ec7n v\u00e0 c\u00e1p ng\u1ea7m, c\u00f3 th\u1ec3 t\u1ea1o nhi\u1ec5u t\u1eeb tr\u01b0\u1eddng l\u00e0m r\u1ed1i lo\u1ea1n \u0111\u1ecbnh h\u01b0\u1edbng c\u00e1 h\u1ed3i. Hi\u1ec3u t\u00e1c \u0111\u1ed9ng c\u1ee7a c\u00e1c nhi\u1ec5u n\u00e0y l\u00e0 then ch\u1ed1t \u0111\u1ec3 gi\u1ea3m thi\u1ec3u hi\u1ec7u \u1ee9ng ti\u1ec1m t\u00e0ng l\u00ean qu\u1ea7n th\u1ec3 c\u00e1 h\u1ed3i.<\/p>\n\n

Nghi\u00ean c\u1ee9u \u0111ang ti\u1ebfn h\u00e0nh v\u00e0 h\u01b0\u1edbng t\u01b0\u01a1ng lai<\/h2>\n\n

Nghi\u00ean c\u1ee9u \u0111\u1ecbnh h\u01b0\u1edbng t\u1eeb tr\u01b0\u1eddng \u1edf c\u00e1 h\u1ed3i ti\u1ebfp t\u1ee5c l\u00e0m s\u00e1ng t\u1ecf s\u1ef1 ph\u1ee9c t\u1ea1p c\u1ee7a kh\u1ea3 n\u0103ng \u0111\u00e1ng kinh ng\u1ea1c n\u00e0y. C\u00e1c nghi\u00ean c\u1ee9u t\u01b0\u01a1ng lai s\u1ebd t\u1eadp trung hi\u1ec3u c\u01a1 ch\u1ebf ph\u00e2n t\u1eed c\u1ee7a c\u1ea3m gi\u00e1c t\u1eeb tr\u01b0\u1eddng, vai tr\u00f2 di truy\u1ec1n trong \u0111\u1ecbnh h\u01b0\u1edbng v\u00e0 t\u00e1c \u0111\u1ed9ng ti\u1ec1m t\u00e0ng c\u1ee7a bi\u1ebfn \u0111\u1ed5i kh\u00ed h\u1eadu l\u00ean c\u00e1c t\u00edn hi\u1ec7u \u0111\u1ecbnh h\u01b0\u1edbng c\u1ee7a c\u00e1 h\u1ed3i.<\/p>","protected":false},"excerpt":{"rendered":"

GPS \u0111\u00e1ng kinh ng\u1ea1c c\u1ee7a c\u00e1 h\u1ed3i: D\u00f9ng t\u1eeb tr\u01b0\u1eddng Tr\u00e1i \u0110\u1ea5t \u0111\u1ec3 \u0111\u1ecbnh h\u01b0\u1edbng \u0110\u1ecbnh h\u01b0\u1edbng b\u1eb1ng t\u1eeb tr\u01b0\u1eddng: La b\u00e0n c\u1ee7a thi\u00ean nhi\u00ean T\u1eeb tr\u01b0\u1eddng Tr\u00e1i \u0110\u1ea5t, gi\u1ed1ng…<\/p>\n","protected":false},"author":2,"featured_media":25298,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[312],"tags":[18404,18405,18403,8247,99,7463],"class_list":["post-13671","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-animal-behavior","tag-animal-navigation","tag-earths-magnetic-field","tag-magnetic-navigation","tag-natures-gps","tag-lifescienceart","tag-salmon"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/13671","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/comments?post=13671"}],"version-history":[{"count":2,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/13671\/revisions"}],"predecessor-version":[{"id":25299,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/posts\/13671\/revisions\/25299"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media\/25298"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/media?parent=13671"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/categories?post=13671"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/vi\/wp-json\/wp\/v2\/tags?post=13671"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}