Oceanic plastic pollution caused by Danish seine fishing in Norway

Syversen, Tore; Lilleng, Grethe; Vollstad, Jørgen; Hanssen, Bård; Sønvisen, Signe Annie

doi:10.1016/j.marpolbul.2022.113711

Cited by 17 publications

(14 citation statements)

References 27 publications

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“…In a recent report, we have described the plastic pollution caused by the Danish seine fishery [27]. Therefore, we do not go into detail but briefly describe this fishing gear and the main findings.…”

Section: Danish Seinementioning

confidence: 99%

“…Therefore, we do not go into detail but briefly describe this fishing gear and the main findings. For details, we refer to [27].…”

Section: Danish Seinementioning

confidence: 99%

“…In other words, there are many possible sources of error, but we believe we are close to the actual value. Then, by finding the number of vessels in use for other countries and assuming the same wear is also valid, we estimate the annual worldwide plastic pollution from seine fishery to be about 311 t [27].…”

Section: Calculated Wearmentioning

confidence: 99%

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Microplastics Derived from Commercial Fishing Activities

Syversen¹,

Lilleng²

2023

Environmental Sciences

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Ordinary fishing activity is a source of microplastics to the sea that is often overlooked and scarcely reported in the literature. In this paper, we estimate the number of microplastics in the ocean that originates from the wear and tear of different fishing gear used during ordinary, commercial fishing. The wear comes mainly from rope abrasion caused by the haulers and gear dragged along the sea bottom. The types of fishing gear considered are pots, gillnets, longlines, Danish seine, and trawls. Our calculations show that about 208 tons of microplastics are produced annually from the Norwegian fishery. Globally, it sums to 4 622 tons annually. However, the calculations have several questionable parameters, and these numbers must be considered a first rough estimate of the generated microplastics. More research is needed to get better estimates, particularly regarding trawl dolly ropes.

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Section: Danish Seinementioning

confidence: 99%

“…Therefore, we do not go into detail but briefly describe this fishing gear and the main findings. For details, we refer to [27].…”

Section: Danish Seinementioning

confidence: 99%

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Microplastics Derived from Commercial Fishing Activities

Syversen¹,

Lilleng²

2023

Environmental Sciences

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“…This may result in old nets ending up in the ocean, either through mismanaged waste or by incentives to dump the gear instead of disposing it properly, which would result in marine pollution with recognised negative impacts in marine ecosystems. The typical lifespan of a gillnet varies considerably depending on the fishery (Deshpande et al, 2020;Syversen et al, 2020). For instance, in the Northeast Arctic (NEA) cod (Gadus morhua) fishery in Norway, the gillnet lifespan can be as short as one fishing season (Grimaldo et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

“…For instance, in the Northeast Arctic (NEA) cod (Gadus morhua) fishery in Norway, the gillnet lifespan can be as short as one fishing season (Grimaldo et al, 2019). In contrast, in the Greenland halibut (Reinhardtius hippoglossoides) fishery in Norway, the gillnet lifespan is typically 5 to 10 years (Syversen et al, 2020). In Norway, approximately 45 % of the commercial fishing fleet uses gillnets, making this fishing gear the most frequently used in the country (Norwegian Directorate of Fisheries, 2021).…”

Section: Introductionmentioning

confidence: 99%