Gerrit Timmerhaus

I have studied biology in Freiburg (Germany) with the topics of molecular biology and bioinformatics. Now I am working in the fields of fish health, disease research via gene expression analysis and bioinformatics.

My Projects

New frontiers in salmonid biology

Investigating Urea for Enhanced Welfare in Farmed Salmon

Harnessing cross-species variation in sea lice resistance

Novel tools and knowledge for a future with no lice infestations in Norwegian aquaculture

Adapting spectral and molecular tools to improve fish welfare assessments

Enhanced fish performance and biosecurity by manipulation of the natural microbiome of Atlantic salmon

Gene editing for CMS resistance in salmon

Predictive fish health under changing environment

Farmed animals welfare toolbox

Programming Fish for Robustness

My publications

Regnbueørret responderer ikke som en laks under termisk behandling

Dietary trace mineral (Cu, Fe, Mn, Zn, and Se) source and levels on production parameters, fillet quality, mineralization, and skin morphology of 1+ and 0+ Atlantic salmon across regions in Norway

Dietary trace mineral (Cu, Fe, Mn, Zn, and Se) source and levels on production parameters, fillet quality, mineralization, and skin morphology of 1+ and 0+ Atlantic salmon across regions in Norway

Characterisation of Lumpfish (Cyclopterus lumpus L.) Skin and Development of a Digital Histomorphometric Tool to Analyse It

Evaluating a crowding intensity scale and welfare indicators for Atlantic salmon in sea cages

Temperature acclimation and response to acute thermal stress in the adults of the snow crab Chionoecetes opilio Fabricius, 1788 (Decapoda: Brachyura: Oregoniidae)

Effects of prolonged application of peracetic acid-based disinfectant on recirculating aquaculture systems stocked with Atlantic salmon parr

Mucosal and systemic physiological changes underscore the welfare risks of environmental hydrogen sulphide in post-smolt Atlantic salmon (Salmo salar)

Climate change with increasing seawater temperature will challenge the health of farmed Atlantic Cod (Gadus morhua L.)

Fast and slow releasing sulphide donors engender distinct transcriptomic alterations in Atlantic salmon hepatocytes

Regulation of the molecular repertoires of oxidative stress response in the gills and olfactory organ of Atlantic salmon following infection and treatment of the parasite Neoparameoba perurans

Mucosal immune and stress responses of Neoparamoeba perurans-infected Atlantic salmon (Salmo salar) treated with peracetic acid shed light on the host-parasite-oxidant interactions

Recurrent oxidant treatment induces dysregulation in the brain transcriptome of Atlantic salmon (Salmo salar) smolts

Transcriptome Responses of Atlantic Salmon (Salmo salar L.) to Viral and Bacterial Pathogens, Inflammation, and Stress

Multiomics provide insights into the key molecules and pathways involved in the physiological adaptation of atlantic salmon (Salmo salar) to chemotherapeutic-induced oxidative stress

Responses to Mineral Supplementation and Salmon Lice (Lepeophtheirus salmonis) Infestation in Skin Layers of Atlantic Salmon (Salmo salar L.)

The optimum velocity for Atlantic salmon post-smolts in RAS is a compromise between muscle growth and fish welfare

Deep neural network analysis – a paradigm shift for histological examination of health and welfare of farmed fish

Crowding reshapes the mucosal but not the systemic response repertoires of Atlantic salmon to peracetic acid

Piscine orthoreovirus-1 isolates differ in their ability to induce heart and skeletal muscle inflammation in Atlantic salmon (Salmo salar)

The Atlantic Salmon Gill Transcriptome Response in a Natural Outbreak of Salmon Gill Pox Virus Infection Reveals New Biomarkers of Gill Pathology and Suppression of Mucosal Defense

Oxidant-induced modifications in the mucosal transcriptome and circulating metabolome of Atlantic salmon

Performance and welfare of Atlantic salmon, Salmo salar L. post-smolts in recirculating aquaculture systems: Importance of salinity and water velocity

Morphomolecular alterations in the skin mucosa of Atlantic salmon (Salmo salar) after exposure to peracetic acid-based disinfectant

Nutrition as a mean to reduce sea lice infestation in Atlantic salmon

Peracetic acid as a potential treatment for amoebic gill disease (AGD) in Atlantic salmon – Stage 1

Wound healing in post-smolt Atlantic salmon (Salmo salar L.)

Antiviral Responses and Biological Concequences of Piscine orthoreovirus Infection in Salmonid Erythrocytes

High fish density delays wound healing in Atlantic salmon (Salmo salar)

Atlantic salmon skin barrier functions gradually enhance after seawater transfer

Resolving the complexity of vitellogenins and their receptors in the tetraploid Atlantic salmon (Salmo salar): Ancient origin of the phosvitin-less VtgC in chondrichthyean fishes

Training the salmon’s genes: influence of aerobic exercise, swimming performance and selection on gene expression in Atlantic salmon

Hypoxia tolerance and responses to hypoxic stress during heart and skeletal muscle inflammation in Atlantic salmon (Salmo salar)

Short-term starvation at low temperature prior to harvest does not impact the health and acute stress response of adult Atlantic salmon

Domestication compromises athleticism and respiratory plasticity in response to aerobic exercise training in Atlantic salmon (Salmo salar)

Experimental Piscine orthoreovirus infection mediates protection against pancreas disease in Atlantic salmon (Salmo salar)

Smoltification and seawater transfer of Atlantic salmon (Salmo salar L.) is associated with systemic repression of the immune transcriptome

Impact of fish density and specific water flow on skin properties in Atlantic salmon (Salmo salar L.) post-smolts

Differences in gene expression in Atlantic salmon parr and smolt after challenge with Piscine orthoreovirus (PRV)

Styrt fettsyresammensetning i fôr for å forebygge utbrudd av viktige virussykdommer i laks

Transcriptome analyses of Atlantic salmon (Salmo salar L.) erythrocytes infected with piscine orthoreovirus (PRV)

Effects of crude oil exposure and elevated temperature on the liver transcriptome of polar cod (Boreogadus saida)

Association between swimming performance, cardiorespiratory morphometry, and thermal tolerance in Atlantic salmon (Salmo salar L.)

Cardiac responses to elevated seawater temperature in Atlantic salmon

Dietary cholesterol supplementation to a plant-based diet suppresses the complete pathway of cholesterol synthesis and induces bile acid production in Atlantic salmon (Salmo salar L.)

Induced erythropoiesis during acute anemia in Atlantic salmon: A transcriptomic survey

Genomic analysis of the host response to nervous necrosis virus in Atlantic cod (Gadus morhua) brain

Kunnskap- og metodeutvikling for å styrke laksens robusthet og helse

Comparison of Atlantic salmon individuals with different outcomes of cardiomyopathy syndrome (CMS)

Cardiomyopathy syndrome (CMS) in Atlantic salmon, Salmo salar L.: functional genomics studies of host-pathogen responses and disease markers / Kardiomyopatisyndrom (CMS) hos Atlantisk laks, Salmo salar L.: funksjonell genomikk studier av vert-patogen responser og sykdomsmarkører

Genomic survey of early responses to viruses in Atlantic salmon, Salmo salar L

IPNV with high and low virulence: host immune responses and viral mutations during infection

Development and assessment of oligonucleotide microarrays for Atlantic salmon (Salmo salar L.)