89 new PhDs from the University of Iceland in 2025
December 1st is a ceremony for the new PhDs
5 of those were from Biology programme, spanning #Arcticcharr #genomics, #whale #bioacoustics, #speciesInteractions, #invasionbiology and #transgenerational #plasticity , all with #AquaticAnimals
Picture #UIceland
https://english.hi.is/news/almost-90-candidates-completed-phd-university
Arctic charr embryos, eyes have developed and somites are forming and extending the animal
We have done á few studies analyzing formation of morphology and related molecular processes
#salmonid #ArcticCharr #development #biology #aquaculture #embryo
Variation of tooth traits in ecologically specialized and sympatric morphs
Manuscript resubmitted To #evolutionarybiology
We examined variation in dental traits in four sympatric morphs of Arctic charr (Salvelinus alpinus) which differ in feeding specialisations, head and jaw bone morphology. We studied tooth numbers in six bones (dentary, maxilla, premaxilla, palatine, vomer and glossohyal)
Found cool things
The arctic charr genome fish, caught in august 2021
Large benthic charr from Lake Thingvallavatn
Pictured are the team, dr Zophonías Jónsson with the individual, on site.
#silentsunday #genome #ArcticCharr #Thingvallavatn #thngvellir
Differential gene expression during early development in recently evolved and sympatric Arctic charr morphs
old paper on the development of sympatric morphs
#arcticcharr #transcriptome #rnaseq #fish #evolution #sympatry
#peerj #biology
https://peerj.com/articles/4345/
Status of salmonid stocks in Iceland
Summary of salmon trout and charr fishing and prospects
Picture from Westfjords
Dynjandi river runninn into Arnarfjörður
#salmonid #atlanticSalmon #browntrout #ArcticCharr #Dynjandi
https://www.hafogvatn.is/is/midlun/frettir-og-tilkynningar/upptaktur-ad-veidisumrinu-2025
Cool results from our bachelor student
Nina Gudrun
She analyzed tooth length variation by morphs in three icelandic lakes.
Allometric relationship - size effect on tooth lengths - varied by morphs
Her BS paper will get integrated with data on bone shape to explore plasticity and divergence in functional traits
#ecology #evolution #biodiversity #iceland #ArcticCharr #adaptation #divergence #plasticity #thingvallavatn #ulfljotsvatn
Good reviews on "Gene flow and habitat heterogeneity shape coexistence dynamics of Arctic charr morphs in connected lakes" at Molecular Ecology
Rejected but encouraged resubmission (which I hate, its plain metric-playing)
The main result being #GeneticStructure of four sympatric morphs in #thingvallavatn #Iceland
#AcademicChatter #rejectResubmit #evolution #genetics #popgen #divergence #ArcticCharr #sympatry #ecology #metapopulation #SourceSink
charrvein
Charrvein
The FSBI