Matches in SemOpenAlex for { <https://semopenalex.org/work/W4321995722> ?p ?o ?g. }
Showing items 1 to 66 of
66
with 100 items per page.
- W4321995722 abstract "A visual survey using a vessel is a representative method to assess the degree of pollution of floating plastic debris in marine environments. However, the visual survey may more easily miss plastic items on and just below water (e.g. plastic bags) than above water (e.g. PET bottles). In addition, there are very limited comparison studies for floating plastic debris on the water surface and suspended plastic debris in the water column. None of the studies quantitatively determined the difference in detection rate by visual and surface trawl surveys. The aim of this study is to evaluate what could be relatively missed and underestimated by surface water visual surveys.Floating plastic debris was monitored by visual and trawl surveys (depth of 0.5 m) in three coastal areas (rural area, GJ; aquafarm area, JH; urban and near river mouth area, SY) of Korea over the four seasons in 2022. In addition, during the visual survey of floating plastic debris in a fishing area (GH), near the river mouth of Han River, a shrimp beam trawl was used to collect plastic debris in the water column (water depth of 10 m) except for thin surface and bottom layer over three seasons in 2022. The seasonal patterns and composition of floating plastic debris in the surface water of JH, GJ, and SY were similar between the visual and trawl surveys. But, the mean densities of most plastics obtained from trawl surveys were 3 to 7 times higher than those from visual surveys. In particular, it was hard to detect small-sized, submerged, or dark-colored fishing gear with the visual survey. Patches with small items can increase the uncertainty of the visual survey. Therefore, visual surveys may underestimate the amount of marine plastic debris above and just below the water.Various types of floating plastic debris were observed by visual survey in the surface water of GH: plastic bags/sheets (54%), expanded polystyrene pieces (18%), plastic containers (4%), strapping (3%), plastic bottles/caps (3%), discarded fishing gear (1%), and other hard plastic pieces (14%). In the water column of GH, however, plastic bags/sheets (93%) predominated and followed by strapping (4%), discarded fishing gear (1%), and other plastics (1%). These results indicate that plastic bags/sheets and strapping would mainly submerge in the water column, but expanded polystyrene pieces, plastic containers, plastic bottles/caps, and other hard plastic pieces are more likely to float rather than sink. Thus, the application of only visual surveys for plastic pollution monitoring in water may largely miss and underestimate the plastic items transported on and below water such as plastic bags and sheets." @default.
- W4321995722 created "2023-02-26" @default.
- W4321995722 creator A5002136633 @default.
- W4321995722 creator A5039407498 @default.
- W4321995722 creator A5044335672 @default.
- W4321995722 creator A5046065299 @default.
- W4321995722 creator A5060098403 @default.
- W4321995722 creator A5085610622 @default.
- W4321995722 creator A5090400150 @default.
- W4321995722 date "2023-05-15" @default.
- W4321995722 modified "2023-09-27" @default.
- W4321995722 title "Comparison Studies for Surface Water Visual Survey and Surface and Water-Column Trawl for Floating and Suspended Marine Plastic Debris" @default.
- W4321995722 doi "https://doi.org/10.5194/egusphere-egu23-11173" @default.
- W4321995722 hasPublicationYear "2023" @default.
- W4321995722 type Work @default.
- W4321995722 citedByCount "0" @default.
- W4321995722 crossrefType "posted-content" @default.
- W4321995722 hasAuthorship W4321995722A5002136633 @default.
- W4321995722 hasAuthorship W4321995722A5039407498 @default.
- W4321995722 hasAuthorship W4321995722A5044335672 @default.
- W4321995722 hasAuthorship W4321995722A5046065299 @default.
- W4321995722 hasAuthorship W4321995722A5060098403 @default.
- W4321995722 hasAuthorship W4321995722A5085610622 @default.
- W4321995722 hasAuthorship W4321995722A5090400150 @default.
- W4321995722 hasConcept C111368507 @default.
- W4321995722 hasConcept C122846477 @default.
- W4321995722 hasConcept C127313418 @default.
- W4321995722 hasConcept C187320778 @default.
- W4321995722 hasConcept C2776023875 @default.
- W4321995722 hasConcept C39432304 @default.
- W4321995722 hasConcept C505870484 @default.
- W4321995722 hasConcept C514101110 @default.
- W4321995722 hasConcept C62329434 @default.
- W4321995722 hasConcept C76886044 @default.
- W4321995722 hasConcept C8625798 @default.
- W4321995722 hasConcept C86803240 @default.
- W4321995722 hasConcept C87717796 @default.
- W4321995722 hasConceptScore W4321995722C111368507 @default.
- W4321995722 hasConceptScore W4321995722C122846477 @default.
- W4321995722 hasConceptScore W4321995722C127313418 @default.
- W4321995722 hasConceptScore W4321995722C187320778 @default.
- W4321995722 hasConceptScore W4321995722C2776023875 @default.
- W4321995722 hasConceptScore W4321995722C39432304 @default.
- W4321995722 hasConceptScore W4321995722C505870484 @default.
- W4321995722 hasConceptScore W4321995722C514101110 @default.
- W4321995722 hasConceptScore W4321995722C62329434 @default.
- W4321995722 hasConceptScore W4321995722C76886044 @default.
- W4321995722 hasConceptScore W4321995722C8625798 @default.
- W4321995722 hasConceptScore W4321995722C86803240 @default.
- W4321995722 hasConceptScore W4321995722C87717796 @default.
- W4321995722 hasLocation W43219957221 @default.
- W4321995722 hasOpenAccess W4321995722 @default.
- W4321995722 hasPrimaryLocation W43219957221 @default.
- W4321995722 hasRelatedWork W1973684404 @default.
- W4321995722 hasRelatedWork W2085831882 @default.
- W4321995722 hasRelatedWork W2151187632 @default.
- W4321995722 hasRelatedWork W2345458848 @default.
- W4321995722 hasRelatedWork W2565352165 @default.
- W4321995722 hasRelatedWork W2606203652 @default.
- W4321995722 hasRelatedWork W2868421891 @default.
- W4321995722 hasRelatedWork W2986255570 @default.
- W4321995722 hasRelatedWork W3158137302 @default.
- W4321995722 hasRelatedWork W4321995722 @default.
- W4321995722 isParatext "false" @default.
- W4321995722 isRetracted "false" @default.
- W4321995722 workType "article" @default.