PROVIDE a Project Aiming at Protein Valorization Through Informatics, Hydrolysis, and Separation
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Downloaded from orbit.dtu.dk on: Sep 27, 2021 PROVIDE a project aiming at protein valorization through informatics, hydrolysis, and separation Hansen, Egon Bech; Jacobsen, Charlotte; Lund, Ole; Marcatili, Paolo; García Moreno, Pedro Jesús Published in: Book of Abstracts Sustain 2017 Publication date: 2017 Document Version Publisher's PDF, also known as Version of record Link back to DTU Orbit Citation (APA): Hansen, E. B., Jacobsen, C., Lund, O., Marcatili, P., & García Moreno, P. J. (2017). PROVIDE a project aiming at protein valorization through informatics, hydrolysis, and separation. In Book of Abstracts Sustain 2017 [Sustain Abstract F-5] Technical University of Denmark. General rights Copyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights. 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Book of Abstracts Sustain 2017 For updated programs and locations see www.sustain.dtu.dk Table of contents • Sponsors • Alphabetic overview of Sessions A-X Talks, Laptop and Poster presentations For updated programs and locations please see www.sustain.dtu.dk Sponsors 2017 Session A Oral Presentations See session details and schedule on www.sustain.dtu.dk Effects of global warming and pollutants on marine copepods across space and time Khuong Van Dinh*,1, Torkel Gissel Nielsen1 1: DTU-Aqua, Technical University of Denmark *Corresponding author email: [email protected] Global warming and pollution are two major threats to global biodiversity, but it remains relatively unknown how these stressors interact synergistically on marine copepods across space and time. We addressed this through: (i) investigation of vulnerability of marine copepods from arctic to tropical ecosystems to global warming, heat waves and pollution and (ii) incorporating the evolution of thermal adaptation in shaping the vulnerability of marine copepods to contaminants. First of all, we investigated the combined effects of global warming and contaminants (e.g. polycyclic aromatic hydrocarbons - PAHs) on both thermal generalist and specialist copepods from arctic to tropical ecosystems (Greenland, Norway, Denmark and Vietnam) in order to generate a comprehensive understanding of their vulnerability to different scenarios of stressor levels. To fundamentally advance the mechanistic understanding of the role of thermal adaptation, we are exposing a fast growing tropical copepod to a simulated scenario of global warming for 10, 50 and 100+ generations and tracking the fitness-related traits in relating to the changes in physiology (e.g. respiration, heat shock proteins) and the gut microbiomes. We found that global warming had stronger negative effects on highly thermally adapted copepods such as arctic species while wide distribution species e.g. Acartia tonsa can deal well with the temperature increase. Exposure to PAH pyrene at the concentration of 100 nM or higher resulted in higher mortality, reduced fecal pellet and egg production of copepods; this pattern was less strong in arctic copepod such as Calanus glacialis than other copepods species. Our studies emphasizes the need to put more effort on studying key species such as marine copepods in highly thermally extreme environments like the Arctic and tropical marine ecosystems. Female copepod Calanus finmarchicus (photo credit: Khuong V. Dinh) Sustain Abstract A-1 Will salinity hinder the ongoing northward dispersal of the invasive round goby into the oceanic North Sea? Jane Behrens1, Mikael van Deurs1 og Emil A. F. Christensen1 1: National Institute of Aquatic Resources, Technical University of Denmark, Kemitorvet B-202. 2800 Kgs Lyngby Denmark *Corresponding author email: [email protected] Non-indigenous species (NIS) can impact marine biodiversity and ecosystem structure and function. Once introduced into a new region, secondary dispersal is limited by the physiology of the organism in relation to the ambient environment and by complex interactions between a suite of ecological factors such as presence of predators, competitors, and parasites. Early prediction of dispersal potential and future `area of impact' is challenging, but also a great asset in taking appropriate management actions. Aerobic scope (AS) in fish has been linked to various fitness-related parameters, and may be valuable in determining dispersal potential of aquatic invasive species in novel environments. Round goby Neogobius melanostomus, one of the most wide- ranging invasive fish species in Europe and North America, currently thrives in brackish and fresh water, but its ability to survive in high salinity waters is unknown to date. We show that AS in round goby is reduced by 30% and blood plasma osmolality increased (indicating reduced capacity for osmoregulation) at salinities approaching oceanic conditions, Round goby Neogobius melanostus following slow ramping (5 PSU per week) and subsequent Photo: Peter van der Sluijs long-term acclimation to salinities ranging between 0 and 30 PSU (8 days at final treatment salinities before blood plasma osmolality measurements, 12±20 additional days before respirometry). Survival was also reduced at the highest salinities yet a significant proportion (61%) of the fish survived at 30 PSU. Reduced physiological performance at the highest salinities may affect growth and competitive ability under oceanic conditions, but to what extent reduced AS and osmoregulatory capacity will slow the current 30 km year-1 rate of advance of the species through the steep salinity gradient from the brackish Baltic Sea and into the oceanic North Sea remains speculative. An unintended natural experiment is in progress to test whether the rate of advance slows down. At the current rate of advance the species will reach the oceanic North Sea by 2019/2020, therefore time for taking preventative action is short. Sustain Abstract A-2 Spatial distribution, origin and source and sink areas of marine litter in the water column of the North Sea Bastian Huwer*1, Matthias Kloppmann2, Christophe Loots3, Cindy van Damme4, Richard Nash5, Barbara Bland6, Lynette Ritchie7 1: DTU Aqua, National Institute of Aquatic Resources, Kgs. Lyngby, Denmark; 2: Thuenen Institute of Sea Fisheries, Hamburg, Germany; 3: IFREMER, Boulogne-sur-mer, France; 4: Wageningen Marine Research, Ijmuiden, The Netherlands; 5: Institute of Marine Research, Bergen, Norway; 6: SLU, Havsfiskelaboratoriet, Lysekil, Sweden; 7: Marine Scotland, Aberdeen, Scotland *Corresponding author email: [email protected] Marine litter, in particular plastic, is becoming an increasing issue in marine ecosystems worldwide. Most marine litter studies are based on surface sampling, beach or bottom trawl surveys, whereas information on marine litter in the water column is rather scarce. In the present study, we utilize an existing herring larvae survey, intended to produce a recruitment index used in fish stock assessment, for opportunistic sampling of marine litter. The survey is covering the entire North Sea and the sampling gear is covering the water column from the surface to 3 meter above the sea floor, providing a unique opportunity to analyze the spatial distribution of different types of marine litter floating in the water column. The characteristics of the litter items such as size, shape and color give indications from which sea- or land-based sources they may originate. The vast majority of collected litter items are different types of plastic materials, and of these the most abundant types are monofilaments, foils, fragments and synthetic rope. The monofilament plastic strings are likely originating from fishing activities, in particular from so-called “dolly ropes”. These “dolly ropes”, short pieces of synthetic rope, are attached to the cod ends of fishing nets to protect them from wear and tear, a practice that is particularly common in beam trawl fisheries. The spatial distribution of these plastic strings shows distinct, annually recurring patterns, which in connection with information from beach surveys, spatial patterns of fishing activity and prevailing currents indicate the existence of source and sink areas of marine litter in the North Sea. There are several negative effects of marine litter, e.g. reduced attractivity of polluted beaches which may influence tourism, entanglement of marine mammals and seabirds in lost fishing nets and other litter items or the ingestion of litter by marine species which potentially results in constipation and death. A particular issue concerning “dolly ropes” is the fact that sea birds are mistaking these plastic threads for sea weed and use them to build their nests, which can cause them to get entangled and strangled. Sustain Abstract A-3 Circular Ocean. Environmental challenges related to waste fishing nets and innovative use as resource in fiber-reinforced concrete Lisbeth M. Ottosen*1, Ida M.G. Bertelsen1, Martin Charter2, Neil James3 1: DTU Civil Engineering, Brovej, Building 118,