Åsa Maria O. Espmark

I am based in Sunndalsøra and in the research group «Production biology».

My interests in research are welfare, welfare indicators and stress, both in salmon and cleaner fish. I also work with organic aquaculture and coordinated the EU project OrAqua.

Regarding welfare, most work is about defining good welfare indicators in commercial production and how to measure stress in suboptimal production situations. I am interested in handling procedures such as crowding and pumping, and optimizing husbandry practices to maintain welfare and ensuring research quality.

I have coordinated large Norwegian and international projects, and since 1st October 2017 I have coordinated CtrlAQUA (center for research based innovation)

+47 991 60 039

+47 71 40 01 39

asa.espmark@nofima.no

Sunndalsøra

Production biology

See publications in Cristin

My Projects

RAS 4.0

Biologically driven automation of salmon production conditions in RAS

2021 - 2026

Temp-Intens

Life cycle study of Atlantic salmon with temperature and salinity as critical test variables

2022 - 2025

CtrlAQUA

Centre for Research-Based Innovation in Closed-Containment Aquaculture

2015 - 2023

FutureEUAqua

Future growth in sustainable, resilient and climate friendly European aquaculture

2018 - 2022

FarmWELL

Farmed animals welfare toolbox

2018 - 2020

AQUAEXCEL2020

2015 - 2020

RENSVEL

Welfare of cleaner fish

2015 - 2019

OrAqua

Recommendations for future organic aquaculture in Europe

2014 - 2016

My publications

Åsa Maria O. Espmark has 53 publications at Nofima:

Revising the Impact and Prospects of Activity and Ventilation Rate Bio-Loggers for Tracking Welfare and Fish-Environment Interactions in Salmonids and Mediterranean Farmed Fish

Frontiers in Marine Science, 2022
Academic literature review

Effects of ozone on post-smolt Atlantic salmon (Salmo salar) performance, health, and maturation in freshwater recirculation aquaculture systems

Aquaculture, 2021
Academic article

RENSVEL OWI FACT SHEET SERIES: An introduction to Operational and Laboratory-based Welfare Indicators for lumpfish (Cyclopterus lumpus L.)

2019
Nofima’s reports

RENSVEL OWI FACT SHEET SERIES: An introduction to Operational and Laboratory-based Welfare Indicators for ballan wrasse (Labrus bergylta)

2019
Nofima’s reports

Velferdsindikatorer for oppdrettslaks: Hvordan vurdere og dokumentere fiskevelferd – Del C. Bruk av operative velferdsindikatorer i forbindelse med ulike håndteringsprosedyrer

2017
Chapter

Velferdsindikatorer for oppdrettslaks: Hvordan vurdere og dokumentere fiskevelferd – Del B. Bruk av operative velferdsindikatorer for ulike oppdretts- og produksjonssystem

2017
Chapter

Velferdsindikatorer for oppdrettslaks: Hvordan vurdere og dokumentere fiskevelferd – Del A. fiskevelferd og oppdrettslaks, kunnskap og teoretisk bakgrunn

2017
Chapter

Welfare, Health, veterinary treatments and biosecurity, Chapter 2, page 48-121 in: Deliverable D2.1 Production issues in organic aquaculture

2017
Report

Modelling growth performance and feeding behaviour of Atlantic salmon (Salmo salar L.) in commercial-size aquaculture net pens: Model details and validation through full-scale experiments

Aquaculture, 2016
Academic article

Effects of Pumping Height and Repeated Pumping in Atlantic Salmon Salmo salar

Natural Resources, 2016
Academic article

The use of acoustic acceleration transmitter tags for monitoring of Atlantic salmon swimming activity in recirculating aquaculture systems (RAS)

Aquacultural Engineering, 2016
Academic article

Bruk av spillvarme til dyrking og prosessering av andemat i Midt-Norge. En bærekraftig proteinkilde til fiske- og dyrefôr

2012
Nofima’s reports

Development of gas bubble disease in juvenile Atlantic salmon exposed to water supersaturated with oxygen

Aquaculture, 2010
Academic article

Effects of hyperoxia on behavioural and physiological variables in farmed Atlantic salmon (Salmo salar) parr

Aquaculture International, 2009
Academic article

A note on pre-spawning maternal cortisol exposure in farmed Atlantic salmon and its impact on the behaviour of offspring in response to a novel environment

Applied Animal Behaviour Science, 2008
Academic article

Fluctuating asymmetry in farmed Atlantic salmon (Salmo salar) juveniles: also a maternal matter?

Environmental Biology of Fishes, 2008
Academic article

Long-term effects of maternal cortisol exposure and mild hyperthermia during embryogeny on survival, growth and morphological anomalies in farmed Atlantic salmon Salmo salar offspring

Journal of Fish Biology, 2007
Academic article

Prespawning stress in farmed Atlantic salmon Salmo salar: maternal cortisol exposure and hyperthermia during embryonic development affect offspring survival, growth and incidence of malformations

Journal of Fish Biology, 2006
Academic article

Prenatal stress in farmed salmon; Impacts on physiological, morphological and behavioural characteristics. In Welfare In Farmed Fish. Damsgård, B. Juell, J.E. & Braastad, B (eds)

2006
Academic chapter/article/Conference paper

Mineral balance and bone formation in fast-growing Atlantic salmon parr (Salmo salar) in response to dissolved metabolic carbon dioxide and restricted dietary phosphorus supply

Aquaculture, 2005
Academic article

Butyl Benzyl Pfthalate Affects Shoaling Behavior and Bottom-Dwelling Behavior in Threespine Stickleback

Environmental Research, 2002
Academic article

My Projects

Biologically driven automation of salmon production conditions in RAS

Life cycle study of Atlantic salmon with temperature and salinity as critical test variables

Centre for Research-Based Innovation in Closed-Containment Aquaculture

Future growth in sustainable, resilient and climate friendly European aquaculture

Farmed animals welfare toolbox

AQUAEXCEL2020

Welfare of cleaner fish

Recommendations for future organic aquaculture in Europe

My publications

The Environmental Impact of Partial Substitution of Fish-Based Feed with Algae- and Insect-Based Feed in Salmon Farming

Atlantic Salmon (Salmo salar) Performance Fed Low Trophic Ingredients in a Fish Meal and Fish Oil Free Diet

Editorial: Biology Meets Technology: Aquatic Animals in Novel and New Aquaculture Production Systems

Health and welfare of Atlantic salmon in FishGLOBE V5 -a novel closed containment system at sea

Revising the Impact and Prospects of Activity and Ventilation Rate Bio-Loggers for Tracking Welfare and Fish-Environment Interactions in Salmonids and Mediterranean Farmed Fish

CtrlAQUA – Annual Report 2021 – Centre for Closed-Containment Aquaculture

A novel miniaturized biosensor for monitoring atlantic salmon swimming activity and respiratory frequency

CtrlAQUA – Annual Report 2020 – CtrlAqua – Centre for Closed-Containment Aquaculture

Effects of ozone on post-smolt Atlantic salmon (Salmo salar) performance, health, and maturation in freshwater recirculation aquaculture systems

FishGLOBE – a new S-CCS concept for farming salmon

Welfare indicators for farmed reinbow trout. Part C – fit for purpose OWIs for different routines and operations

Welfare indicators for farmed rainbow trout: Part B – Fit for purpose OWIs for different production systems

Welfare indicators for farmed rainbow trout – Part A. Knowledge and theoretical background

The effects of ozone on Atlantic salmon post-smolt in brackish water — Establishing welfare indicators and thresholds

Welfare in cleaner fish – operational welfare indicators (OWI) – RENSVEL. Revised edition of report 12/2019

CtrlAQUA – Annual Report 2019 – CtrlAqua – Centre for Closed-Containment Aquaculture

RENSVEL OWI FACT SHEET SERIES: An introduction to Operational and Laboratory-based Welfare Indicators for lumpfish (Cyclopterus lumpus L.)

RENSVEL OWI FACT SHEET SERIES: An introduction to Operational and Laboratory-based Welfare Indicators for ballan wrasse (Labrus bergylta)

Welfare in cleaner fish – operational welfare indicators (OWI) – RENSVEL

CtrlAQUA – Annual Report 2018 – CtrlAqua – Centre for Closed-Containment Aquaculture

Sedasjon av smolt bør brukes kun når det er høyst nødvendig

Del C. Bruk av operative velferdsindikatorer i forbindelse med ulike håndteringsprosedyrer

Del B. Bruk av operative velferdsindikatorer for ulike produksjonssystem

Del A. Fiskevelferd og oppdrettslaks, kunnskap og teoretisk bakgrunn

Modelling how the physical scale of experimental tanks affects salmon growth performance

CtrlAQUA – Annual Report 2017 – CtrlAQUA – Centre for Closed-Containment Aquaculture

Sedation of smolt – SMOLTSED

Velferdsindikatorer for oppdrettslaks: Hvordan vurdere og dokumentere fiskevelferd – Del C. Bruk av operative velferdsindikatorer i forbindelse med ulike håndteringsprosedyrer

Velferdsindikatorer for oppdrettslaks: Hvordan vurdere og dokumentere fiskevelferd – Del B. Bruk av operative velferdsindikatorer for ulike oppdretts- og produksjonssystem

Velferdsindikatorer for oppdrettslaks: Hvordan vurdere og dokumentere fiskevelferd – Del A. fiskevelferd og oppdrettslaks, kunnskap og teoretisk bakgrunn

Welfare, Health, veterinary treatments and biosecurity, Chapter 2, page 48-121 in: Deliverable D2.1 Production issues in organic aquaculture

Beste praksis for medikamentfrie metoder for lakseluskontroll (MEDFRI) – Faglig sluttrapport

CtrlAQUA – Annual Report 2016 – CtrlAQUA – Centre for Closed-Containment Aquaculture

Tank size and fish management history matters in experimental design

CtrlAQUA – Annual Report 2015 CtrlAqua – Center for Closed-containment Aquaculture

Modelling growth performance and feeding behaviour of Atlantic salmon (Salmo salar L.) in commercial-size aquaculture net pens: Model details and validation through full-scale experiments

Effects of Pumping Height and Repeated Pumping in Atlantic Salmon Salmo salar

The use of acoustic acceleration transmitter tags for monitoring of Atlantic salmon swimming activity in recirculating aquaculture systems (RAS)

Infrared reflection system for indoor 3D tracking of fish

Pumping og håndtering av smolt

Gode driftsrutiner reduserer tapet

Low light intensity can reduce Atlantic salmon smolt quality

Pumping av torsk og laks, faktorer som påvirker velferd og kvalitet

Bruk av spillvarme til dyrking og prosessering av andemat i Midt-Norge. En bærekraftig proteinkilde til fiske- og dyrefôr

Development of gas bubble disease in juvenile Atlantic salmon exposed to water supersaturated with oxygen

Effects of hyperoxia on behavioural and physiological variables in farmed Atlantic salmon (Salmo salar) parr

A note on pre-spawning maternal cortisol exposure in farmed Atlantic salmon and its impact on the behaviour of offspring in response to a novel environment

Fluctuating asymmetry in farmed Atlantic salmon (Salmo salar) juveniles: also a maternal matter?

Long-term effects of maternal cortisol exposure and mild hyperthermia during embryogeny on survival, growth and morphological anomalies in farmed Atlantic salmon Salmo salar offspring

Prespawning stress in farmed Atlantic salmon Salmo salar: maternal cortisol exposure and hyperthermia during embryonic development affect offspring survival, growth and incidence of malformations

Prenatal stress in farmed salmon; Impacts on physiological, morphological and behavioural characteristics. In Welfare In Farmed Fish. Damsgård, B. Juell, J.E. & Braastad, B (eds)

Mineral balance and bone formation in fast-growing Atlantic salmon parr (Salmo salar) in response to dissolved metabolic carbon dioxide and restricted dietary phosphorus supply

Butyl Benzyl Pfthalate Affects Shoaling Behavior and Bottom-Dwelling Behavior in Threespine Stickleback