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dc.contributor.advisorHolm, Petter
dc.contributor.authorCerbule, Kristine
dc.date.accessioned2024-05-03T07:03:45Z
dc.date.available2024-05-03T07:03:45Z
dc.date.issued2024-05-22
dc.description.abstractPlast er blant de vanligste typene av forsøpling, og fiskeri representerer en av kildene til plastforurensning i det marine miljøet fra forlatt, mistet eller tapt fangstredskap (eng., ALDFG). Fordi plastmaterialer brukes i fiskeredskaper har ALDFG, inklusive garn og liner, negativ innvirkning på det marine miljøet. Bruk av biologisk nedbrytbare plastmaterialer i fiskeredskaper har potensial til å redusere plastforurensning og spøkelsesfiske fra tapte redskaper. For at det nye materialet skal bli akseptert bør det ha tilsvarende egenskaper som fiskeredskaper laget av ordinær ikke-biologisk nedbrytbar plast. Dette er nødvendig for å unngå at nye materialer ikke reduserer lønnsomheten og for at de skal bli akseptert i fiskerisektoren. I denne avhandlingen presenteres resultater fra fem feltstudier hvor fangstevnen til redskaper laget av biologisk nedbrytbart polybutylensuccinat-co-adipat-co-tereftalat (PBSAT) plastmateriale i garn- og linefiske blir evaluert opp mot redskaper av nylon.en_US
dc.description.abstractPlastic is among the most common types of marine litter, and fisheries represent one of the sources of plastic pollution in the marine environment by abandoned, lost, or otherwise discarded fishing gear (ALDFG). Due to use of plastic materials in fishing gear construction, such ALDFG, including passive fishing gears, has a considerable negative impact on the marine environment. Use of biodegradable plastic materials in fishing gears have a potential to reduce marine plastic pollution and ghost fishing. However, for the new material to be used in commercial fisheries, it should preferably provide similar performance to the fishing gear made of common, non-biodegradable material so that it would not compromise profitability of the industry and gain acceptance in the fishing sector. Therefore, this thesis presents results from five research studies evaluating the performance during fishing with the gear made of recently developed biodegradable polybutylene succinate-co-adipate-co-terephthalate (PBSAT) plastic material in gillnet and longline fisheries.en_US
dc.description.doctoraltypeph.d.en_US
dc.description.popularabstractPlastic is among the most common types of marine litter, and fisheries represent one of the sources of plastic pollution in the marine environment by abandoned, lost, or otherwise discarded fishing gear (ALDFG). Due to use of plastic materials in fishing gear construction, ALDFG including passive fishing gears has a considerable negative impact on the marine environment. Use of biodegradable plastic materials in fishing gears have a potential to reduce marine plastic pollution and ghost fishing. However, for the new material to be used in commercial fisheries, it should provide similar performance to the fishing gear made of non-biodegradable material so that it would not compromise profitability and gain acceptance in the fishing sector. This thesis presents results from five research studies evaluating the fishing performance of gear made of recently developed biodegradable polybutylene succinate-co-adipate-co-terephthalate (PBSAT) plastic material in gillnet and longline fisheries.en_US
dc.identifier.isbn978-82-8266-259-8
dc.identifier.urihttps://hdl.handle.net/10037/33443
dc.language.isoengen_US
dc.publisherUiT The Arctic University of Norwayen_US
dc.publisherUiT Norges arktiske universiteten_US
dc.relation.haspart<p>Paper I: Cerbule, K., Savina, E., Herrmann, B., Larsen, R.B., Feekings, J.P., Krag, L.A. & Pellegrinelli, A. (2022). Quantification of catch composition in fisheries: A methodology and its application to compare biodegradable and nylon gillnets. <i>Journal for Nature Conservation, 70</i>, 126298. Also available in Munin at <a href=https://hdl.handle.net/10037/27641>https://hdl.handle.net/10037/27641</a>. <p>Paper II: Cerbule, K., Herrmann, B., Grimaldo, E., Larsen, R.B., Savina, E. & Vollstad, J. (2022). Comparison of the efficiency and modes of capture of biodegradable versus nylon gillnets in the Northeast Atlantic cod (<i>Gadus morhua</i>) fishery. <i>Marine Pollution Bulletin, 178</i>, 113618. Also available in Munin at <a href=https://hdl.handle.net/10037/26388>https://hdl.handle.net/10037/26388</a>. <p>Paper III: Savina, E., Gieysztor Bertelsen, I.M., Cerbule, K., Le Gué, L., Herrmann, B. & Krag, L.A. Weaker tensile properties of biodegradable gillnets reduces catch efficiency much faster than biodegradation. (Submitted manuscript). <p>Paper IV: Cerbule, K., Grimaldo, E., Herrmann, B., Larsen, R.B., Brčić, J. & Vollstad, J. (2022). Can biodegradable materials reduce plastic pollution without decreasing catch efficiency in longline fishery? <i>Marine Pollution Bulletin, 178</i>, 113577. Also available in Munin at <a href=https://hdl.handle.net/10037/26160>https://hdl.handle.net/10037/26160</a>. <p>Paper V: Cerbule, K., Herrmann, B., Trumbić, Ž., Petrić, M., Krstulović Šifner, S., Grimaldo, E., Larsen, R.B. & Brčić, J. (2023). Use of biodegradable materials to reduce marine plastic pollution in small scale coastal longline fisheries. <i>Journal for Nature Conservation, 74</i>, 126438. Also available in Munin at <a href=https://hdl.handle.net/10037/30084>https://hdl.handle.net/10037/30084</a>.en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2024 The Author(s)
dc.subject.courseIDDOKTOR-002
dc.titleUse of biodegradable plastic materials in gillnet and longline fisheriesen_US
dc.typeDoctoral thesisen_US
dc.typeDoktorgradsavhandlingen_US


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