{"id":1551,"date":"2026-02-25T15:51:06","date_gmt":"2026-02-25T15:51:06","guid":{"rendered":"https:\/\/uni.hi.is\/apalsson\/?p=1551"},"modified":"2026-02-26T09:50:54","modified_gmt":"2026-02-26T09:50:54","slug":"1551","status":"publish","type":"post","link":"https:\/\/uni.hi.is\/apalsson\/2026\/02\/25\/1551\/","title":{"rendered":"MS projects in aquatic biology"},"content":{"rendered":"

The new cohort in MS programme on Aquatic biology and fisheries<\/a> can choose from a variety of projects.<\/p>\n

The coordinator of the programme at the University of Iceland is Dr. Haseeb Randhawa. He maintains a list of projects that students can request to work on.<\/p>\n

Here we list three projects that are also offered to students in this programme in the fall of 2026.<\/p>\n

Genetic diversity in the mitochondrial genome of Icelandic salmon<\/span>\u00a0\u00a0<\/strong><\/p>\n

Prospective Masters students are invited to apply for a 90 ECT research project
\nat the School of Engineering and Natural Sciences at the University of Iceland.
\nThe project is in collaboration with the Marine and Freshwater Research Institute and
\nthe Biomedical Center at the University of Iceland, and is entitled
\n\u201cGenetic diversity in the mitochondrial genome of Icelandic salmon\u201d
\nThe student will be tasked with isolating DNA from multiple contemporary and historical samples from the collections of the Marine and Freshwater Research Institute in order to sequence complete mitochondrial genomes from multiple individuals.
\n<\/span><\/p>\n

The central aim of the project will be to characterize the diversity within the mitochondrial genome of salmon collected across Iceland and possible shifts in genetic composition within select stocks.
\nProject supervisors are \u00c1ki Jarl L\u00e1ruson<\/a>, Katr\u00edn Halld\u00f3rsd\u00f3ttir, & Le\u00f3 Alexander Gu\u00f0mundsson. Academic advisor is Arnar P\u00e1lsson.<\/span><\/p>\n

Applicants who would like to tackle this project should send a copy of their CV
\nand a brief introduction which higlights their interest in the project to
\naki.jarl.laruson@hafogvatn.is<\/p>\n

Ecological influence on evolution of feeding elements in sympatric morphs\u00a0\u00a0<\/strong><\/p>\n

Ecological opportunities can be exploited by organisms and leading to evolutionary divergence and even speciation. Fish show an impressive diversity in feeding specializations, seeming resulting from evolution and ecological opportunities.\u00a0<\/span>\u00a0<\/span>Data suggest substantial level of phenotypic parallelism in body- and head-shape in Arctic charr, when they radiate into diverse morphs in northern lakes. The research project centers on questions at the intersection of ecological, evolutionary and developmental biology or anatomy. The aim is to study morphological variation in sympatric charr to study the ecological influence on feeding morphology (teeth and bone shape). The over arching questions are: Which feeding traits differ consistently between sympatric morphs across lakes? Does plasticity in feeding traits differ between benthic and pelagic morphs? What is the pattern of evolutionary divergence in upper and lower jaw traits in Arctic charr?\u00a0 The approach will be based on ecological sampling, dissections and morpological and statistical analyses including the use of geometric morphometrics. The student will work with other graduate students in the Arctic charr group at the University of Iceland, and scientsist at the Freshwater division of MFRI and at Universities in Canada. The candidate should have biology or ecology background, numerical skills a strong suit, and have interest in anatomical diversity, ecology, evolution and development.<\/span><\/p>\n

\"\"<\/a>

maxilla, premaxilla, palatine, supramaxilla<\/p><\/div>\n

Supervisors: Arnar P\u00e1lsson and Gudbj\u00f6rg \u00d3sk J\u00f3nsd\u00f3ttir (https:\/\/orcid.org\/0009-0008-0502-5553<\/a>) at University of Iceland.<\/span>\u00a0<\/span><\/p>\n

Location: Field work in South-west Iceland and lab work in Reykjav\u00edk<\/span>\u00a0<\/span><\/p>\n

Examples of related studies.<\/span>\u00a0<\/span><\/p>\n

J\u00f3nsd\u00f3ttir G\u00d3, von Elm L-M, Ingimarsson F, Tersigni S, Snorrason SS, P\u00e1lsson A, et al. (2024) Diversity in the internal functional feeding elements of sympatric morphs of Arctic charr (Salvelinus alpinus<\/em>). PLoS ONE 19(5): e0300359. https:\/\/doi.org\/10.1371\/journal.pone.0300359<\/a>\u00a0<\/span>\u00a0<\/span><\/p>\n

\n
Gu\u00f0bj\u00f6rg \u00d3sk<\/span> J\u00f3nsd\u00f3ttir<\/span><\/span>, Finnur<\/span> Ingimarsson<\/span><\/span>, Sigur\u00f0ur Sveinn<\/span> Snorrason<\/span><\/span>, Sarah Elizabeth<\/span> Steele<\/span><\/span>, Arnar<\/span> P\u00e1lsson <\/span><\/span>Variation of tooth traits in ecologically specialized and sympatric morphs<\/div>\n<\/div>\n
\n
\n
\n
\n
\n
\n
\n
\n
bioRxiv <\/span>2024.12.18.629189; <\/span>doi:<\/span> <\/span>https:\/\/www.biorxiv.org\/content\/10.1101\/2024.12.18.629189v1<\/span><\/a>\u00a0<\/span><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

\u00a0<\/span><\/p>\n

Genomics of rapid diversification in craniofacial traits related to feeding\u00a0<\/strong><\/p>\n

The genetic raw material for adaptive evolution can now be studied with whole genome sequencing, and the patterns of positive selection detected in genomes of non-model organisms. Systems with extensive sympatric and allopatric polymorphism can be studied with these methods, to map out patterns of divergence and highlight loci and genomic regions that have been shaped by positive selection in response to ecological diversity. Arctic charr is known for considerable polymorphism and substantial phenotypic parallelism in feeding and body morphology. The aim of this project is to explored the genomics related to craniofacial diversity in sympatric Arctic charr, in reference to anadromous populations (putative ancestors). The research questions are the following: i) which loci and molecular pathways separate ecologically specialized morphs, ii) what is the role of structural variations in maintaining morph separation, and iii) when in development do adaptive traits emerge? The project involves sampling fish in their habitat, processing them and working with students doing phenotypic analyses. The main effort will be DNA isolation and analyses of whole genome sequencing data from the sampled populations, using bioinformatic and population genetic tools and programmes. The ideal candidate should have biology and genetics background, strong bioinformatic and numerical skills are required.\u00a0<\/span><\/p>\n

\"\"<\/a>

Comparison of distributions of Heterozygosity by morphs and lakes<\/p><\/div>\n

Supervision: Arnar P\u00e1lsson, Zophon\u00edas O. J\u00f3nsson and Gudbj\u00f6rg \u00d3sk J\u00f3nsd\u00f3ttir at the University of Iceland.<\/span>\u00a0<\/span><\/p>\n

Location: Sampling in South-west Iceland, lab work and analyses in Reykjav\u00edk<\/span>\u00a0<\/span><\/p>\n

Examples of related studies.<\/span>\u00a0<\/span><\/p>\n

Han Xiao, Arnar Palsson, Zophon\u00edas Oddur J\u00f3nsson, et al. Gene flow and habitat heterogeneity shape coexistence dynamics of Arctic charr morphs in connected lakes. Authorea.<\/i> December 27, 2024.
\nDOI: 10.22541\/au.173531304.47377188\/v1<\/a><\/span><\/p>\n

J\u00f3nsd\u00f3ttir G\u00d3, von Elm L-M, Ingimarsson F, Tersigni S, Snorrason SS, P\u00e1lsson A, et al. (2024) Diversity in the internal functional feeding elements of sympatric morphs of Arctic charr (Salvelinus alpinus<\/em>). PLoS ONE 19(5): e0300359. https:\/\/doi.org\/10.1371\/journal.pone.0300359<\/a>\u00a0<\/span>\u00a0<\/span><\/p>","protected":false},"excerpt":{"rendered":"

The new cohort in MS programme on Aquatic biology and fisheries can choose from a variety of projects. The coordinator of the programme at the University of Iceland is Dr. Haseeb Randhawa. He maintains a list of projects that students … Continue reading →<\/span><\/a><\/p>\n","protected":false},"author":132,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13970,1],"tags":[],"class_list":["post-1551","post","type-post","status-publish","format-standard","hentry","category-graduate-students","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/posts\/1551","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/users\/132"}],"replies":[{"embeddable":true,"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/comments?post=1551"}],"version-history":[{"count":3,"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/posts\/1551\/revisions"}],"predecessor-version":[{"id":1554,"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/posts\/1551\/revisions\/1554"}],"wp:attachment":[{"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/media?parent=1551"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/categories?post=1551"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/uni.hi.is\/apalsson\/wp-json\/wp\/v2\/tags?post=1551"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}