{"id":6092,"date":"2026-10-19T09:48:27","date_gmt":"2026-10-19T09:48:27","guid":{"rendered":"https:\/\/phd.hi.is\/doktorsvorn\/doktorsvorn-i-vistfraedilikonum-paul-n-frater\/"},"modified":"2026-10-19T09:48:27","modified_gmt":"2026-10-19T09:48:27","slug":"doktorsvorn-i-vistfraedilikonum-paul-n-frater","status":"publish","type":"phd_defence","link":"https:\/\/phd.hi.is\/en\/doktorsvorn\/doktorsvorn-i-vistfraedilikonum-paul-n-frater\/","title":{"rendered":"Doktorsv\u00f6rn \u00ed vistfr\u00e6\u00f0il\u00edk\u00f6num – Paul N. Frater"},"content":{"rendered":"
\n
\n

V\u00f6rninni ver\u00f0ur streymt: <\/strong>https:\/\/www.youtube.com\/user\/HIvarp\/live<\/a>
<\/strong><\/p>\n

Doktorsefni:<\/strong>\u00a0Paul N. Frater\u00a0<\/p>\n

Heiti ritger\u00f0ar:<\/strong>\u00a0Vandam\u00e1l og mikilv\u00e6gi aldurs- og lengdargagna \u00ed l\u00edkanager\u00f0 innan fiskifr\u00e6\u00f0i.<\/p>\n

Andm\u00e6lendur:<\/strong>\u00a0
<\/strong>Dr. Sarah Gaichas, Fiskifr\u00e6\u00f0ingur hj\u00e1 National Oceanic and Atmospheric Administration \u00ed Bandar\u00edkjunum.<\/p>\n

Dr. C\u00f3il\u00edn Minto, s\u00e9rfr\u00e6\u00f0ingur \u00ed megindlegri vistfr\u00e6\u00f0i vi\u00f0 Galway-Mayo Institute of Technology \u00e1 \u00cdrlandi.\u00a0<\/p>\n

Lei\u00f0beinandi:<\/strong>\u00a0Dr. Gunnar Stef\u00e1nsson, pr\u00f3fessor vi\u00f0 Raunv\u00edsindadeild H\u00e1sk\u00f3la \u00cdslands.<\/p>\n

Einnig \u00ed doktorsnefnd:<\/strong>\u00a0
<\/strong>Dr. Bjarki Elvarsson, s\u00e9rfr\u00e6\u00f0ingur hj\u00e1, Hafranns\u00f3knastofnun<\/p>\n

Dr. Rick Methot, v\u00edsindama\u00f0ur fiskistofna vi\u00f0 National Oceanic and Atmospheric Administration \u00ed Bandar\u00edkjunum.\u00a0<\/p>\n

Doktorsv\u00f6rn st\u00fdrir:<\/strong>\u00a0Dr.Oddur Ing\u00f3lfsson, pr\u00f3fessor og deildarforseti Raunv\u00edsindadeildar H\u00e1sk\u00f3la \u00cdslands.<\/p>\n

\u00c1grip:\u00a0
<\/strong>G\u00f6gn um aldur og lengd fiska, \u00e1samt v\u00edsit\u00f6lum \u00far stofnm\u00e6lingum, eru undirst\u00f6\u00f0uuppl\u00fdsingar \u00ed fiskifr\u00e6\u00f0i. M\u00e6lingum \u00e1 aldri og lengd hefur veri\u00f0 safna\u00f0 s\u00ed\u00f0an ranns\u00f3knir h\u00f3fust \u00e1 fiskum og fiskistofnum \u00e1 n\u00edtj\u00e1ndu \u00f6ld. \u00deessi g\u00f6gn um aldurs- og lengdarsamsetningu eru nau\u00f0synleg til a\u00f0 meta v\u00f6xt, aff\u00f6ll, valmynstur og n\u00fdli\u00f0un fiskistofna. \u00der\u00e1tt fyrir mikilv\u00e6gi \u00feessara gagna fyrir l\u00edk\u00f6n \u00ed fiskifr\u00e6\u00f0i eru enn til sta\u00f0ar \u00fdmis vandam\u00e1l sem fylgt hafa g\u00f6gnum um samsetningu alveg fr\u00e1 upphafi.<\/p>\n

\u00deessi ritger\u00f0 fjallar um helstu m\u00e1l sem tengjast notkun gagna um samsetningu \u00ed fiskil\u00edk\u00f6num, auk mikilv\u00e6gis \u00feeirra \u00ed sam\u00fe\u00e6ttum stofnl\u00edk\u00f6num. \u00cd ritger\u00f0inni eru fimm kaflar: Fyrstu tveir fjalla um vandam\u00e1l sem tengjast aldurs- og lengdarg\u00f6gnum vi\u00f0 mat \u00e1 vexti, s\u00e1 \u00feri\u00f0ji fjallar um breytileika vaxtar \u00feorsks (Gadus morhua L.) \u00ed t\u00edma og r\u00fami umhverfis \u00cdsland. S\u00ed\u00f0ustu tveir kaflarnir fjalla um mikilv\u00e6gi aldurs- og lengdargagna \u00ed sam\u00fe\u00e6ttum stofnl\u00edk\u00f6num vegna \u00e1hrifa gagnanna \u00e1 b\u00e6\u00f0i punktmat og \u00f3vissumat. \u00c1 heildina liti\u00f0 hefur s\u00fa vinna sem h\u00e9r er l\u00fdst \u00fer\u00f3a\u00f0 nokkurn skilning \u00e1 mikilv\u00e6gi samsetningargagna me\u00f0 \u00fev\u00ed a\u00f0:<\/p>\n