| 1. |
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| 2. |
- Andersson, Gerhard, et al.
(author)
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Internet-based psychodynamic versus cognitive behavioral guided self-help for generalized anxiety disorder : A randomized controlled trial
- 2012
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In: Psychotherapy and Psychosomatics. - Basel, Switzerland : Karger. - 0033-3190 .- 1423-0348. ; 81:6, s. 344-355
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Journal article (peer-reviewed)abstract
- Background: Guided Internet-based cognitive behavior therapy (ICBT) has been tested in many trials and found to be effective in the treatment of anxiety and mood disorders. Generalized anxiety disorder (GAD) has also been treated with ICBT, but there are no controlled trials on guided Internet-based psychodynamic treatment (IPDT). Since there is preliminary support for psychodynamic treatment for GAD, we decided to test if a psychodynamically informed self-help treatment could be delivered via the Internet. The aim of the study was to investigate the efficacy of IPDT for GAD and to compare against ICBT and a waiting list control group.Method: A randomized controlled superiority trial with individuals diagnosed with GAD comparing guided ICBT (n = 27) and IPDT (n = 27) against a no treatment waiting list control group (n = 27). The primary outcome measure was the Penn State Worry Questionnaire.Results: While there were no significant between-group differences immediately after treatment on the main outcome measure, both IPDT and ICBT resulted in improvements with moderate to large within-group effect sizes at 3 and 18 months follow-up on the primary measure in the completer analyses. The differences against the control group, although smaller, were still significant for both PDT and CBT when conforming to the criteria of clinically significant improvement. The active treatments did not differ significantly. There was a significant group by time interaction regarding GAD symptoms, but not immediately after treatment.Conclusions: IPDT and ICBT both led to modest symptom reduction in GAD, and more research is needed.Copyright (C) 2012 S. Karger AG, Basel
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| 3. |
- Avagyan, Rozanna, et al.
(author)
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Benzothiazole, benzotriazole, and their derivates in clothing textiles - a potential source of environmental pollutants and human exposure
- 2015
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In: Environmental Science and Pollution Research. - : Springer Science and Business Media LLC. - 0944-1344 .- 1614-7499. ; 22:8, s. 5842-5849
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Journal article (peer-reviewed)abstract
- Textiles play an important role in our daily life, and textile production is one of the oldest industries. In the manufacturing chain from natural and/or synthetic fibers to the final clothing products, the use of many different chemicals is ubiquitous. A lot of research has focused on chemicals in textile wastewater, but the knowledge of the actual content of harmful chemicals in clothes sold on the retail market is limited. In this paper, we have focused on eight benzothiazole and benzotriazole derivatives, compounds rated as high production volume chemicals. Twenty-six clothing samples of various textile materials and colors manufactured in 14 different countries were analyzed in textile clothing using liquid chromatography tandem mass spectrometry. Among the investigated textile products, 11 clothes were for babies, toddlers, and children. Eight of the 11 compounds included in the investigation were detected in the textiles. Benzothiazole was present in 23 of 26 investigated garments in concentrations ranging from 0.45 to 51 μg/g textile. The garment with the highest concentration of benzothiazole contained a total amount of 8.3 mg of the chemical. The third highest concentration of benzothiazole (22 μg/g) was detected in a baby body made from “organic cotton” equipped with the “Nordic Ecolabel” (“Svanenmärkt”). It was also found that concentrations of benzothiazoles in general were much higher than those for benzotriazoles. This study implicates that clothing textiles can be a possible route for human exposure to harmful chemicals by skin contact, as well as being a potential source of environmental pollutants via laundering and release to household wastewater.
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| 4. |
- Avagyan, Rozanna, et al.
(author)
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Determination of benzothiazole and benzotriazole derivates in tire and clothing textile samples by high performance liquid chromatography-electrospray ionization tandem mass spectrometry
- 2013
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In: Journal of Chromatography A. - : Elsevier BV. - 0021-9673 .- 1873-3778. ; 1307, s. 119-125
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Journal article (peer-reviewed)abstract
- A high performance liquid chromatography–tandem mass spectrometry method utilizing electrospray ionization in positive and negative mode has been developed for the separation and detection of benzothiazole and benzotriazole derivates. Ultra-sonication assisted solvent extraction of these compounds has also been developed and the overall method demonstrated on a selected clothing textile and an automobile tire sample. Matrix effects and extraction recoveries, as well as linearity and limits of detection have been evaluated. The calibration curves spanned over more than two orders of magnitude with coefficients of correlation R2 > 0.99 and the limits of detection and the limits of quantification were in the range 1.7–58 pg injected and 18–140 pg/g, respectively. The extraction recoveries ranged between 69% and 102% and the matrix effects between 75% and 101%. Benzothiazole and benzotriazole derivates were determined in the textile sample and benzothiazole derivatives determined in the tire sample with good analytical performance.
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| 5. |
- Axelsson, Ulrik, et al.
(author)
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Strukturerad miljödatahantering inom järn- och stålindustri
- 2002
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Reports (other academic/artistic)abstract
- Efterfrågan på miljöinformation i olika former förväntas öka under de kommande åren. Det gäller såväl internt inom företaget som externt till kunder, ägare, övriga finansiärer, myndigheter m.fl. För att kunna möta de förväntade kraven har företagen inom järn- och stålindustrin identifierat ett behov av att åstadkomma en strukturerad miljödatahantering (lagring, bearbetning och dokumentation), som möjliggör att ett och samma dataunderlag så långt som möjligt kan utnyttjas och relativt enkelt omformas till olika former av kommunikationsprodukter. Projektets mål är därför att ta fram en branschgemensam struktur för miljödatahantering inom järn- och stålindustrin
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| 6. |
- Buehler, Stefan, et al.
(author)
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A multi-instrument comparison of integrated water vapour measurements at a high latitude site
- 2012
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In: Atmospheric Chemistry And Physics. - : Copernicus GmbH. - 1680-7316 .- 1680-7324. ; 12:22, s. 10925-10943
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Journal article (peer-reviewed)abstract
- We compare measurements of integrated water vapour (IWV) over a subarctic site (Kiruna, Northern Sweden) from five different sensors and retrieval methods: Radiosondes, Global Positioning System (GPS), ground-based Fourier-transform infrared (FTIR) spectrometer, ground-based microwave radiometer, and satellite-based microwave radiometer (AMSU-B). Additionally, we compare also to ERA-Interim model reanalysis data. GPS-based IWV data have the highest temporal coverage and resolution and are chosen as reference data set. All datasets agree reasonably well, but the ground-based microwave instrument only if the data are cloud-filtered. We also address two issues that are general for such intercomparison studies, the impact of different lower altitude limits for the IWV integration, and the impact of representativeness error. We develop methods for correcting for the former, and estimating the random error contribution of the latter. A literature survey reveals that reported systematic differences between different techniques are study-dependent and show no overall consistent pattern. Further improving the absolute accuracy of IWV measurements and providing climate-quality time series therefore remain challenging problems.
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| 7. |
- Carlqvist, Karin, et al.
(author)
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Life-cycle assessment of the production of cationized tannins from Norway spruce bark as flocculants in wastewater treatment
- 2020
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In: Biofuels, Bioproducts and Biorefining. - : Wiley. - 1932-104X .- 1932-1031. ; 14:6, s. 1270-1285
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Journal article (peer-reviewed)abstract
- It will be necessary to make efficient use of our resources if our society is to be converted into a bio-based economy. Every year large side streams of bark are produced in sawmills and pulp mills. In addition to utilizing the bark for heat and electricity production, as happens today, high-value chemical components could be extracted prior to energy conversion. These components include tannins. Cationized tannins have already been indicated as promising renewable flocculants in wastewater treatment. However, today's industrial production of tannins uses species from subtropical or temperate climates, and there has so far been little attention to the use of tannins from Norway spruce (Picea abies), an important species in forestry in the subarctic climate. The present life-cycle assessment (LCA) was undertaken to understand the environmental performance of the production of cationized tannins from the bark of Norway spruce and how the environmental impact is distributed along the production system. This work was connected to the Interreg Botnia-Atlantica TanWat research project, which studies the production and use of cationized tannins from Norway spruce for wastewater treatment at a pilot scale. The present LCA shows that the main environmental impact stems from the reagents used in the cationization step. The purification step could also be a significant issue depending on the possibility of reusing the eluent (ethanol) and the lifetime of the resin. The importance of running the processes with as concentrated streams as possible to minimize the need of process water and energy was also confirmed
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| 8. |
- Forsberg, Sofi, 1980-
(author)
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Human Epidermal Growth Factor Receptors and Biological Effects of HER-directed Molecules on Skin Epithelialization
- 2009
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Doctoral thesis (other academic/artistic)abstract
- Human skin forms a biologically active barrier and maintains vital protective functions through continuous regeneration of cells within its outermost layer, the epidermis. In healthy skin, renewal of epithelial cells is a tightly regulated process in which the epidermal growth factor receptor (EGFR or HER1) and its various ligands are involved. The biological role of other EGFR family members (HER2–4) in normal and diseased human skin has gained less interest. The purpose of this work was to investigate the expression and contribution of different HERs in cultured epidermis and psoriatic skin. Epidermal regeneration was studied by fluorescence imaging of a skin explant model exposed to anti-psoriatic drugs, HER ligands or HER-blocking molecules. EGFR, HER2 and HER3 were all markedly expressed with an in vivo-like immunostaining pattern in cultured neoepidermis, whereas only low amounts of HER4 were detected at protein and mRNA levels. Re-epithelialization was associated with receptor activation. Application of HER-selective tyrosine kinase inhibitors and monoclonal antibodies reduced the proliferative activity, receptor phosphorylation and radial outgrowth from normal skin explants. Similar anti-dynamic effects were obtained with HER kinase inhibition of neoepidermis generated from psoriatic skin. Among the HER receptors, EGFR seemed to be the dominant subtype during epithelialization in vitro although HER2 and HER3 were also involved. HER2 probably functioned as a co-receptor for the kinase-deficient HER3 in neoepidermis. In vivo, expression of HER4 mRNA was detected in normal and uninvolved psoriatic skin but was virtually absent in lesional skin, a potentially important finding for HER signalling in psoriasis. This thesis demonstrates the utility of combined dynamic and biochemical analyses of re-epithelialization and highlights the role of EGFR and other HERs for epidermal growth. It also underscores the potential of HER-directed inhibition to control hyperproliferative states of the epidermis.
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| 9. |
- Lannering, Katarina, et al.
(author)
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Screening for Critical Congenital Heart Defects in Sweden
- 2023
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In: PEDIATRICS. - : American Academy of Pediatrics (AAP). - 0031-4005 .- 1098-4275. ; 152:4
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Journal article (peer-reviewed)abstract
- OBJECTIVES Early diagnosis of critical congenital heart defects (CCHD) improves survival. We evaluated the relative contributions of prenatal ultrasound, neonatal pulse oximetry screening (POS), and neonatal physical examination (NPE) to the early detection (before discharge) of CCHD in the context of increasing prenatal detection, and POS being a national standard since 2013.METHODS Retrospective, nationwide population-based study. All full-term live-born infants with CCHD in Sweden between 2014 and 2019 were included. CCHD was defined as a congenital heart defect requiring surgery or catheter-based intervention or resulting in death within 28 days of birth.RESULTS Of 630 infants, 89% were diagnosed before discharge or death, 42% prenatally, 11% from early symptoms, 23% by POS, and 14% from NPE after a negative POS. Four (0.6%) died undiagnosed before discharge and 64/630 (10%) were discharged undiagnosed, with 24/64 being readmitted with circulatory failure and causing 1 preoperative death. Coarctation was the most prevalent CCHD (N = 184), 25% of whom were detected prenatally (12% by POS and 29% by NPE). Two died undiagnosed before discharge and 30% were discharged undiagnosed. Transposition was the second most common defect (N = 150) and 43% were detected prenatally (33% by POS, 1 by NPE) and 2 died undiagnosed before POS. None was discharged undiagnosed.CONCLUSIONS POS and NPE remain important for the early detection of CCHD complementing prenatal ultrasound screening. Nevertheless, 1 in 10 with CCHD leaves the hospital without a diagnosis, with coarctation being the predominant lesion. Future research on CCHD screening should have a particular focus on this cardiac defect.
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| 10. |
- Lannering, Katarina, et al.
(author)
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Screening for critical congenital heart defects in sweden
- 2024
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In: Obstetrical and Gynecological Survey. - : Lippincott Williams & Wilkins. - 0029-7828 .- 1533-9866. ; 79:4, s. 185-187
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Journal article (peer-reviewed)abstract
- (Abstracted from Pediatrics 2023;152:e2023061949 Critical congenital heart defects (CCHDs) affect between 1 and 3 of every 1000 live-born infants and require intervention in the short term after birth. Early identification of affected infants contributes to significantly to better outcomes in both the short- and long-term.
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| 11. |
- Luongo, Giovanna, et al.
(author)
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Quinolines in clothing textiles-a source of human exposure and wastewater pollution?
- 2014
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In: Analytical and Bioanalytical Chemistry. - : Springer Science and Business Media LLC. - 1618-2642 .- 1618-2650. ; 406:12, s. 2747-2756
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Journal article (peer-reviewed)abstract
- A production process in which the use of various types of chemicals seems to be ubiquitous makes the textile industry a growing problem regarding both public health as well as the environment. Among several substances used at each stage, the present study focuses on the quinolines, a class of compounds involved in the manufacture of dyes, some of which are skin irritants and/or classified as probable human carcinogens. A method was developed for the determination of quinoline derivatives in textile materials comprising ultrasound-assisted solvent extraction, solid phase extraction cleanup, and final analysis by gas chromatography/mass spectrometry. Quinoline and ten quinoline derivatives were determined in 31 textile samples. The clothing samples, diverse in color, material, brand, country of manufacture, and price, and intended for a broad market, were purchased from different shops in Stockholm, Sweden. Quinoline, a possible human carcinogen, was found to be the most abundant compound present in almost all of the samples investigated, reaching a level of 1.9 mg in a single garment, and it was found that quinoline and its derivatives were mainly correlated to polyester material. This study points out the importance of screening textiles with nontarget analysis to investigate the presence of chemicals in an unbiased manner. Focus should be primarily on clothing worn close to the body.
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| 12. |
- Ovegård, Maria, et al.
(author)
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Cormorant diet in relation to temporal changes in fish communities
- 2012
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In: ICES Journal of Marine Science. - : Oxford University Press (OUP). - 1054-3139 .- 1095-9289. ; 69, s. 175-183
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Journal article (peer-reviewed)abstract
- The stomach contents of 229 great cormorants (Phalacrocorax carbo sinensis) shot between March and October 2009 along the Swedish east coast were analysed for differences in diet between gender, age, and breeding phase. Sticklebacks (Gasterosteus aculeatus and Pungitius pungitius) were the most common prey, followed by eelpout (Zoarces viviparus), herring (Clupea harengus membras), and cyprinids (Cyprinidae). Diet did not differ between age and gender, but changed over the breeding season. The different phases explained around 10% of the total variation in stomach content between cormorants, suggesting no major shift in diet over the breeding season. The diet of cormorants in 2009 was compared with the results of a study conducted in the same area in 1992. There were evident changes in the diet between 1992 and 2009, with less perch (Perca fluviatilis) and cyprinids and more eelpout and herring in 2009. This change in diet could partly be related to changes in the fish community. The seasonal changes in diet composition of whole stomachs were less notable than in many previous studies, but long-term changes in the fish communities may induce changes in cormorant diet. It is clearly important to use stomach contents in areas with many small fish species for a comprehensive assessment of cormorant diet.
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| 13. |
- Schlyter, Mona, et al.
(author)
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Personality factors and depression as predictors of hospital-based health care utilization following acute myocardial infarction
- 2017
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In: European Journal of Cardiovascular Nursing. - : Sage Publications. - 1474-5151 .- 1873-1953. ; 16:4, s. 318-325
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Journal article (peer-reviewed)abstract
- Background: Whether personality factors and depressive traits affect patients’ utilization of health care following an acute myocardial infarction is relatively unknown. The aim of this study was to examine whether hospital-based health care utilization after a myocardial infarction was correlated with patients’ personality factors and depressive symptoms. Methods: We studied 366 myocardial infarction patients admitted to Malmö University Hospital between 2002 and 2005 who subsequently participated in a cardiac rehabilitation programme. The patients were followed for two years after their index event. We investigated whether personality factors and depressive traits were correlated with the participants’ health care utilization, defined as a) out-patient Cardiology visits and phone calls to a physician, nurse or a social worker, and b) acute visits or admissions to the Emergency or Cardiology Departments, using negative binominal regression analysis. Results: In unadjusted comparisons neuroticism predicted more out-patient contacts. This significance remained after adjusting for age, sex, smoking, alcohol consumption and size of the myocardial infarction (measured as max level on troponin-I and left ventricular ejection fraction). There were no significant correlations between other personality factors or depression and out-patient contacts. None of the personality factors or depression predicted acute admissions. Conclusion: Apart from neuroticism, personality factors did not explain utilization of health care in terms of Cardiology out-patient contacts or acute admissions in myocardial infarction patients participating in a cardiac rehabilitation programme. Neither did depressive symptoms predict more health care utilization. This might indicate a robust cardiac rehabilitation programme offered to the study subjects, minimizing the need for additional health care contacts.
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| 14. |
- Schlyter, Mona, et al.
(author)
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Smoking Cessation After Acute Myocardial Infarction in Relation to Depression and Personality Factors
- 2016
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In: International Journal of Behavioral Medicine. - : Springer. - 1070-5503 .- 1532-7558. ; 23:2, s. 234-242
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Journal article (peer-reviewed)abstract
- Smoking is an important cardiovascular risk factor and smoking cessation should be a primary target in secondary prevention after a myocardial infarction (MI). The purpose of this study was to examine whether personality, coping and depression were related to smoking cessation after an MI MI patients a parts per thousand currency sign 70 years (n = 323, 73 % men, 58.7 +/- 8.3 years), participating in the Secondary Prevention and Compliance following Acute Myocardial Infarction study in Malmö, Sweden, between 2002 and 2005, were interviewed by a psychologist to assess coping strategies and completed Beck Depression and NEO Personality Inventories, in close proximity to the acute event. Correlation between smoking status (current, former and never), personality factors, coping and depression was assessed at baseline and 24 months after the MI using logistic regression and in a multivariate analysis, adjusting for age and sex Of the participating patients, 46 % were current smokers. Two years after the event, 44 % of these were still smoking. At baseline, current smokers scored higher on the depression and neuroticism scales and had lower agreeableness scores. Patients who continued to smoke after 2 years had higher scores on being confrontational (i.e. confrontative coping style) compared to those who had managed to quit. Patients who continued to smoke had significantly lower agreeableness and were more often living alone Personality, coping strategies and psychosocial circumstances are associated with smoking cessation rates in patients with MI. Considering personality factors and coping strategies to better individualise smoking cessation programs in MI patients might be of importance.
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| 15. |
- Schlyter, Mona, et al.
(author)
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The impact of personality factors on delay in seeking treatment of acute myocardial infarction
- 2011
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In: BMC Cardiovascular Disorders. - : Springer Science and Business Media LLC. - 1471-2261. ; 11
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Journal article (peer-reviewed)abstract
- Background: Early hospital arrival and rapid intervention for acute myocardial infarction is essential for a successful outcome. Several studies have been unable to identify explanatory factors that slowed decision time. The present study examines whether personality, psychosocial factors, and coping strategies might explain differences in time delay from onset of symptoms of acute myocardial infarction to arrival at a hospital emergency room. Methods: Questionnaires on coping strategies, personality dimensions, and depression were completed by 323 patients ages 26 to 70 who had suffered an acute myocardial infarction. Tests measuring stress adaptation were completed by 180 of them. The patients were then categorised into three groups, based on time from onset of symptoms until arrival at hospital, and compared using logistic regression analysis and general linear models. Results: No correlation could be established between personality factors (i.e., extraversion, neuroticism, openness, agreeableness, conscientiousness) or depressive symptoms and time between onset of symptoms and arrival at hospital. Nor was there any significant relationship between self-reported patient coping strategies and time delay. Conclusions: We found no significant relationship between personality factors, coping strategies, or depression and time delays in seeking hospital after an acute myocardial infraction.
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| 16. |
- Östman, Erik, et al.
(author)
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Hysteresis-free switching between vortex and collinear magnetic states
- 2014
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In: New Journal of Physics. - : IOP Publishing. - 1367-2630. ; 16, s. 053002-
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Journal article (peer-reviewed)abstract
- We demonstrate a lossless switching between vortex and collinear magnetic states in circular FePd disks arranged in a square lattice. Above a bifurcation temperature (Te) we show that thermal fluctuations are enough to facilitate flipping between the two distinctly different magnetic states. We find that the temperature dependence of the vortex annihilation and nucleation fields can be described by a simple power law relating them to the saturation magnetization.
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| 17. |
- Östman, Karin
(author)
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Inventering av lackeringsanläggningar
- 1990
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Reports (other academic/artistic)abstract
- Under 1988 genomförde Länsstyrelsen en tillsynskampanj av fasta lackeringsanlägningar inom Gävleborgs län.Tillsynskampanjen motiverades av de förhållandevis stora miljöproblem lackeringsanlägningar ofta medför, de relativt dåliga kunskaperna om varje enskild lackeringsanläggning som fanns samt behovet av en likartad bedömning av anläggningarna och deras miljöproblem. Totalt besöktes 28 lackeringsanlägningar i länet. Av dessa har 23 huvudsakligen lackering av metallprodukter, fyra huvudsakligen träprodukter och en både och.
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| 18. |
- Östman, Örjan, et al.
(author)
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Do cormorant colonies affect local fish communities in the Baltic Sea?
- 2012
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In: Canadian Journal of Fisheries and Aquatic Sciences. - 0706-652X .- 1205-7533. ; 69, s. 1047-1055
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Journal article (peer-reviewed)abstract
- The effects that cormorants have on fish communities have been debated, yet few studies have used the necessary controls and replications to make valid and general assessments. Using both a paired design and time series analysis, we studied associations between colony size of the great cormorant (Phalacrocorax carbo sinesis) in the Baltic Sea and local fish community composition. Overall, colony size showed few associations with local fish communities. Most evident was a negative association between colony size and perch (Perca fluviatilis) abundances in some areas. But for other species, results were nonsignificant or variable among areas. The Baltic Sea cormorant population has increased over the last decades, and our results suggest that management actions to reduce local cormorant colonies may have a positive effect on local perch abundance. Otherwise, our results predict colony reductions to either have variable or weak effects on adjacent local fish communities.
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| 19. |
- Östman, Örjan, et al.
(author)
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Estimating Competition between Wildlife and Humans-A Case of Cormorants and Coastal Fisheries in the Baltic Sea
- 2013
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In: PLOS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 8:12, s. e83763-
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Journal article (peer-reviewed)abstract
- Cormorants and other wildlife populations have come in real or perceived conflicts with humans over exploited fish stocks. From gut contents of cormorants, and using an extension of the Catch equation, we estimated the degree of short term competition between great cormorants and coastal fisheries in two areas along the Swedish Baltic Sea. Cormorants consumed 10 and 44%, in respective area, of the fish biomass of six fish species harvested by humans; eel, flounder, herring, perch, pike, and whitefish. On average, cormorants consumed smaller individuals than harvested in fisheries. But for perch, cod and flounder, cormorants consumed harvestable sized fish corresponding >20% of human catches. Our competition model estimated the direct decrease in fisheries catches due to cormorant predation to be <10% for all species except flounder (>30%) and perch (2-20%). When also including the indirect effects of cormorant predation on smaller fish that never reached harvestable size, the estimated decrease in fisheries catches at least doubled for perch (13-34%) and pike (8-19%). Despite large uncertainties, our model indicates that cormorants may locally have a direct impact on human catches of at least flounder, and when incorporating indirect effects also on perch and pike. The study indicates that the degree of competition between cormorants and humans varies substantially between areas. We also included economical values in the model and concluded that for the commercially most important species, eel and cod, the estimated economic impact of cormorants on fisheries was low.
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| 20. |
- Östman, Örjan, et al.
(author)
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Feasibility and potential for farming and conditioning of wild fish fed with by-catches in Sweden
- 2021
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Reports (other academic/artistic)abstract
- Small-scale fisheries face problems with declining fish stocks in poor condition, increasing interactions with seals and cormorants and partly non-efficient distribution systems, resulting in low profitability. One potential method to increase the value of their catch is rear the fish in farms until fish reach a size that render a higher price. This may not only provide a higher value of each animal but also a steadier supply of fish to consumers and retailers. In addition, by-catch of unwanted species may be used as feed ingredient to the farmed fish. This will not only cut the costs for the feed but is also a more sustainable alternative as it will both make use of by-catches that otherwise is discarded, and recirculate nutrients on a regional scale instead of importing new nutrients. Farming of wild caught fish and shellfish (grow-out or capture-based aquaculture) constitute a large part of aquaculture on a global scale. Except for eel is this type of aquaculture still limited in Sweden and Europe, with relatively little development. Here we make an overview of species that could be interesting for farming of wild caught fish, and identify benefits and challenges. The species we find most suitable for further development are cod, perch, whitefish, pike and pikeperch for which we can identify evident benefits of farming. In common for all these species is the need for an efficient feed system to ensure early and rapid weight gain and minimizing initial mortality. We speculate that a feed based on insect larvae could be one way to improve the feeding system for several species of wild caught fish. However, there are ethical and welfare issues related to farming wild born fish. As wild caught fish are not domesticated for life in captivity they can suffer from distress and increased susceptibility and transmissions of disease. Safeguarding the health and welfare of fish in capture-based aquaculture is a key to making it economically feasible, as an increased value for the end-consumers is necessary to compensate the fishermen for the additional costs associated with farming of wild caught fish. In addition, removal of wild fish may also impede natural stock size and recruitment of the natural stocks. Although our aim is to develop a farming system where local by-catches is used as a feed ingredient, local eutrophication effects and water pollutions (feed and fish residues) can cause degradation of local water quality. In conclusion, we find potential for farming of wild caught fish with local-by-catches as a feed ingredient. To be economically feasible there is a need for developing feeding systems, investigate stress responses and ethical and sustainability aspects important for marketing of such products.
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