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  • 1
    Publication Date: 2023-02-09
    Description: During three cruises in the Mid Atlantic Ridge area in 2016 and 2017, we collected samples of mesopelagic species down to a depth of 600 m and evaluated the presence of unwanted substances. Except for Cd and As, toxic compounds were present at levels far lower than the limits set by European Union regulations.
    Keywords: 1,2,3,4,5,6-Hexachlorobenzene; 1,2,3,4,5-Pentachlorobenzene; Aldrin; alpha-Hexachlorocyclohexane; Arsenic; beta-Hexachlorocyclohexane; Birkeland; Birkeland_Cruise_1; Birkeland_Cruise_1-H02; Birkeland_Cruise_1-H07; Birkeland_Cruise_2; Birkeland_Cruise_2-H03; Birkeland_Cruise_2-H04; Birkeland_Cruise_3; Birkeland_Cruise_3-H05; Cadmium; Chlordane; delta-Hexachlorocyclohexane; Dieldrin; Event label; gamma-Hexachlorocyclohexane; Heptachlordane; Heptachlor epoxide; Lead; Mercury; Midwater trawl; Mirex; MWT; Northeast Atlantic; Octachlorostyrene; Polychlorinated dibenzo-p-dioxins, dibenzofurans and polychlorinated biphenyls in toxic equivalency quotients; Polychlorinated dibenzo-p-dioxins and dibenzofurans in toxic equivalency quotients; Polyunsaturated fatty acids of total fatty acids, n-6; SUMMER; Sum of alpha-, beta-Endosulfan and Endosulfan-sulphate; Sum of dichlorodiphenyltrichloroethanes, dichlorodiphenyldichloroethanes and dichlorodiphenyldichloroethylenes; Sum of non-dioxin-like polychlorinated biphenyls; Sustainable Management of Mesopelagic Resources; Toxaphene, total; trans-Nonachlor
    Type: Dataset
    Format: text/tab-separated-values, 250 data points
    Location Call Number Limitation Availability
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  • 2
    Publication Date: 2023-02-09
    Description: During three cruises in the Mid Atlantic Ridge area in 2016 and 2017, we collected samples of mesopelagic species down to a depth of 600 m and analysed wax esters, triglycerides, free fatty acids, cholesterol and phospholipids (g/100 g oil) of four catch samples.
    Keywords: Birkeland; Birkeland_Cruise_1; Birkeland_Cruise_1-H01; Birkeland_Cruise_1-H02; Birkeland_Cruise_1-H03; Birkeland_Cruise_1-H04; Birkeland_Cruise_1-H05; Birkeland_Cruise_1-H06; Birkeland_Cruise_1-H07; Birkeland_Cruise_1-H08; Birkeland_Cruise_1-H09; Birkeland_Cruise_1-H10; Birkeland_Cruise_2; Birkeland_Cruise_2-H01; Birkeland_Cruise_2-H03; Birkeland_Cruise_2-H04; Birkeland_Cruise_2-H05; Birkeland_Cruise_3; Birkeland_Cruise_3-H01; Birkeland_Cruise_3-H02; Birkeland_Cruise_3-H03; Birkeland_Cruise_3-H04; Birkeland_Cruise_3-H05; Birkeland_Cruise_3-H06; Birkeland_Cruise_3-H07; Birkeland_Cruise_3-H08; Calculated; Cholesterol; Cholesterol, standard deviation; Event label; Fatty acids, free; Fatty acids, free, standard deviation; Lipids, unidentified; Lipids, unidentified, standard deviation; Midwater trawl; MWT; Northeast Atlantic; Phospholipids; Phospholipids, standard deviation; SUMMER; Sustainable Management of Mesopelagic Resources; Thin-layer chromatography with a flame ionization detector system (Iatroscan TLC-FID analyser TH-10 MK-IV, Iatron Laboratories Inc., Tokyo, Japan); Triglycerides; Triglycerides, standard deviation; Wax esters; Wax esters, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 258 data points
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2023-07-10
    Description: During three cruises in the Mid Atlantic Ridge area in 2016 and 2017, we studied the biomass of mesopelagic fish down to a depth of 600 m and identified and quantified the species composition of the catches. The biomass density was estimated considering the volume of water filtered by the cross-sectional area of the trawl blinded with 16 mm meshes (130 m–2), the distanced covered by the trawl (m) at a towing speed (transformed to m s–1) the effective tow time (min) and the catch (kg).
    Keywords: Amphipoda; Arctozenus rissoi; Argentina sphyraena; Argyropelecus hemigymnus; Benthosema glaciale; Biomass, wet mass per volume; Birkeland; Birkeland_Cruise_1; Birkeland_Cruise_1-H01; Birkeland_Cruise_1-H02; Birkeland_Cruise_1-H03; Birkeland_Cruise_1-H04; Birkeland_Cruise_1-H05; Birkeland_Cruise_1-H06; Birkeland_Cruise_1-H07; Birkeland_Cruise_1-H08; Birkeland_Cruise_1-H09; Birkeland_Cruise_1-H10; Birkeland_Cruise_1-H11; Birkeland_Cruise_1-H12; Birkeland_Cruise_2; Birkeland_Cruise_2-H01; Birkeland_Cruise_2-H02; Birkeland_Cruise_2-H03; Birkeland_Cruise_2-H04; Birkeland_Cruise_2-H05; Birkeland_Cruise_3; Birkeland_Cruise_3-H01; Birkeland_Cruise_3-H02; Birkeland_Cruise_3-H03; Birkeland_Cruise_3-H04; Birkeland_Cruise_3-H05; Birkeland_Cruise_3-H06; Birkeland_Cruise_3-H07; Birkeland_Cruise_3-H08; Calculated; Cephalopoda; Euphausiacea; Event label; Fish, wet weighted; Hydrozoa; Maurolicus muelleri; Midwater trawl; MWT; Myctophum punctatum; Northeast Atlantic; Notoscopelus kroeyeri; Stomias boa; SUMMER; Sustainable Management of Mesopelagic Resources; Temperature, water; Total catch; Towing speed; Trawl headline depth; Trawling time
    Type: Dataset
    Format: text/tab-separated-values, 448 data points
    Location Call Number Limitation Availability
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  • 4
    Publication Date: 2023-09-18
    Description: During three cruises in the Mid Atlantic Ridge area in 2016 and 2017, we studied Maurolicus muelleri (Mueller's pearlside) wet mass, length, sex and maturity stages per size class.
    Keywords: Birkeland; Birkeland_Cruise_1; Birkeland_Cruise_1-H06; Birkeland_Cruise_2; Birkeland_Cruise_2-H04; Birkeland_Cruise_3; Birkeland_Cruise_3-H04; Birkeland_Cruise_3-H06; Event label; Fish, wet weighted; Fish measuring board; Maurolicus muelleri, female; Maurolicus muelleri, indeterminate sex; Maurolicus muelleri, length, maximum; Maurolicus muelleri, length, mean; Maurolicus muelleri, length, minimum; Maurolicus muelleri, male; Maurolicus muelleri, mass, maximum; Maurolicus muelleri, mass, mean; Maurolicus muelleri, mass, minimum; Midwater trawl; MWT; Northeast Atlantic; SUMMER; Sustainable Management of Mesopelagic Resources; VID; Visual identification
    Type: Dataset
    Format: text/tab-separated-values, 36 data points
    Location Call Number Limitation Availability
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  • 5
    Publication Date: 2024-04-20
    Description: During three cruises in the Mid Atlantic Ridge area in 2016 and 2017, we studied the biomass of mesopelagic fish and its potential as a source of protein and oil for animal feed and human consumption. We collected samples of mesopelagic species down to a depth of 600 m, studied fish behaviour, identified and quantified the species composition of the catches, analysed the chemical composition of the catch samples, and evaluated the presence of unwanted substances. Results showed that Maurolicus muelleri (Mueller's pearlside) and Benthosema glaciale (Glacier lantern fish) were the most abundant fish species in our samples and catches containing 80% fish can be a good source of protein and marine lipids including eicosapentaenoic acid (C20:5n3) and docosahexaenoic acid (C22:6n3). Unwanted substances, except for Cd and As, were present at levels far lower than the limits set by European Union regulations. However, our experiments identified challenges that may limit the efficiency of commercial operations in the Northeast Atlantic. Combined real-time optical and/or multifrequency acoustic systems will be needed to improve species identification and ensure cost-effective fishing operations. Also, selective trawls that target only fish and release unwanted species are needed to secure high-quality oils and proteins.
    Keywords: SUMMER; Sustainable Management of Mesopelagic Resources
    Type: Dataset
    Format: application/zip, 6 datasets
    Location Call Number Limitation Availability
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  • 6
    Publication Date: 2024-04-20
    Description: During three cruises in the Mid Atlantic Ridge area in 2016 and 2017, we collected samples of mesopelagic species down to a depth of 600 m. We studied fish behaviour and identified and quantified the species composition of the catches using HD videos (60 frames/s). For species identification and the estimation of the number of siphonophores/m³ we analysed the videos frame by frame using the tool VLC media player.
    Keywords: Binary Object; Binary Object (File Size); Binary Object (MD5 Hash); Birkeland; Birkeland_Cruise_1; Birkeland_Cruise_1-H07; Birkeland_Cruise_1-H08; Digital camera, GoPro Hero 4; Event label; mesopelagic fish; mesopelagic invertebrates; Midwater trawl; MWT; Northeast Atlantic; SUMMER; Sustainable Management of Mesopelagic Resources
    Type: Dataset
    Format: text/tab-separated-values, 2 data points
    Location Call Number Limitation Availability
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  • 7
    Publication Date: 2024-05-15
    Description: During three cruises in the Mid Atlantic Ridge area in 2016 and 2017, we collected samples of mesopelagic species down to a depth of 600 m and analysed the chemical composition of the catch samples. We present gross proximate composition (g /100 g fresh weight) and fatty acid composition (% of total fatty acids) in mesopelagic raw material samples (values are mean ± standard deviation of 2–4 samples).
    Keywords: all-cis-4,7,10,13,16,19-Docosahexaenoic acid of total fatty acids; all-cis-4,7,10,13,16,19-Docosahexaenoic acid of total fatty acids, standard deviation; all-cis-5,8,11,14,17-Eicosapentaenoic acid of total fatty acids; all-cis-5,8,11,14,17-Eicosapentaenoic acid of total fatty acids, standard deviation; all-cis-7,10,13,16,19-Docosapentaenoic acid of total fatty acids; all-cis-7,10,13,16,19-Docosapentaenoic acid of total fatty acids, standard deviation; Ash; Ash, standard deviation; Birkeland; Birkeland_Cruise_1; Birkeland_Cruise_1-H01; Birkeland_Cruise_1-H02; Birkeland_Cruise_1-H03; Birkeland_Cruise_1-H04; Birkeland_Cruise_1-H05; Birkeland_Cruise_1-H06; Birkeland_Cruise_1-H07; Birkeland_Cruise_1-H08; Birkeland_Cruise_1-H09; Birkeland_Cruise_1-H10; Birkeland_Cruise_2; Birkeland_Cruise_2-H01; Birkeland_Cruise_2-H03; Birkeland_Cruise_2-H04; Birkeland_Cruise_2-H05; Birkeland_Cruise_3; Birkeland_Cruise_3-H01; Birkeland_Cruise_3-H02; Birkeland_Cruise_3-H03; Birkeland_Cruise_3-H04; Birkeland_Cruise_3-H05; Birkeland_Cruise_3-H06; Birkeland_Cruise_3-H07; Birkeland_Cruise_3-H08; Calculated; Event label; Extraction of Lipids after Bligh & Dyer (1959); Gas-liquid chromatography; Gravimetric analysis (oven-dried at 105°C); Lipids; Lipids, standard deviation; Midwater trawl; Moisture; Moisture, standard deviation; Monounsaturated fatty acids of total fatty acids; Monounsaturated fatty acids of total fatty acids, standard deviation; MWT; Northeast Atlantic; Polyunsaturated fatty acids, standard deviation; Polyunsaturated fatty acids of total fatty acids; Polyunsaturated fatty acids of total fatty acids, n-3; Polyunsaturated fatty acids of total fatty acids, n-3, standard deviation; Polyunsaturated fatty acids of total fatty acids, n-6; Polyunsaturated fatty acids of total fatty acids, n-6, standard deviation; Proteins; Proteins, standard deviation; Saturated fatty acids of total fatty acids; Saturated fatty acids of total fatty acids, standard deviation; SUMMER; Sustainable Management of Mesopelagic Resources
    Type: Dataset
    Format: text/tab-separated-values, 520 data points
    Location Call Number Limitation Availability
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  • 8
    Publication Date: 2023-02-08
    Description: In this study, we conducted an experimental panel survey in Norway, Germany and Portugal to explore consumers' willingness to pay more for products that are certified microplastic free. This is placed within the context of private certification schemes and private governance as mechanisms to increase consumer conscientiousness, establish a higher environmental standard in terms of microplastic and reduce marine pollution. We find that consumers in general are very conscious about the issue, would generally prefer products that are microplastics free, but would seldom choose these when there is a price premium on the label. This had a geographical offset though, with the results aligning with that of political trust in the nation, with Norwegians being less likely to purchase items with price premiums for private governance labels, and Portugal being most likely to – even with a price premium.
    Type: Article , PeerReviewed
    Format: text
    Location Call Number Limitation Availability
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  • 9
    Publication Date: 2023-02-08
    Description: Wastewater treatment plants (WWTPs) are a focal point for the removal of microplastic (MP) particles before they are discharged into aquatic environments. WWTPs are capable of removing substantial quantities of larger MP particles but are inefficient in removing particles with any one dimension of less than 100 mu m, with influents and effluents tending to have similar quantities of these smaller particles. As a single WWTP may release 〉100 billion MP particles annually, collectively WWTPs are significant contributors to the problem of MP pollution of global surface waters. Currently, there are no policies or regulations requiring the removal of MPs during wastewater treatment, but as concern about MP pollution grows, the potential for wastewater technologies to capture particles before they reach surface waters has begun to attract attention. There are promising technologies in various stages of development that may improve the removal of MP particles from wastewater. Better incentivization could speed up the research, development and adoption of innovative practices. This paper describes the current state of knowledge regarding MPs, wastewater and relevant policies that could influence the development and deployment of new technologies within WWTPs. We review existing technologies for capturing very small MP particles and examine new developments that may have the potential to overcome the shortcomings of existing methods. The types of collaborations needed to encourage and incentivize innovation within the wastewater sector are also discussed, specifically strong partnerships among scientific and engineering researchers, industry stakeholders, and policy decision makers.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
    Format: text
    Location Call Number Limitation Availability
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