The incidence and effects of ingested plastic in seabirds

Simple item page
dc.contributor.advisorSiegfried, Royen_ZA
dc.contributor.authorRyan, Peter Gen_ZA
dc.date.accessioned2016-05-09T09:02:45Z
dc.date.available2016-05-09T09:02:45Z
dc.date.issued1986en_ZA
dc.description.abstractThis thesis comprises two major sections: an assessment of the incidence of plastic particles at sea and in seabirds {Chapters 1-3), and an investigation of the postulated effects of plastic ingestion on seabirds (Chapters 4-7). The incidence of plastic at sea was recorded from neuston trawls performed monthly at 120 sampling stations off the southwestern Cape, South Africa, during 1977-78. The types of plastic particles collected are described, and the temporal and spatial distribution patterns of plastic pollution are discussed. Ingested plastic was recorded from 36 of 60 seabird species sampled. The effect of different sampling techniques on the incidence of plastic is discussed. The frequencies of occurrence of plastic colour-types in birds are compared with those of particles collected at sea in neuston trawls. Pale particles were under-represented in all species, but the disparity was less for small than for large species, which may account for the higher incidence of ingested plastic in small than in large species.en_ZA
dc.identifier.apacitationRyan, P. G. (1986). <i>The incidence and effects of ingested plastic in seabirds</i>. (Thesis). University of Cape Town ,Faculty of Science ,Department of Biological Sciences. Retrieved from http://hdl.handle.net/11427/19522en_ZA
dc.identifier.chicagocitationRyan, Peter G. <i>"The incidence and effects of ingested plastic in seabirds."</i> Thesis., University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 1986. http://hdl.handle.net/11427/19522en_ZA
dc.identifier.citationRyan, P. 1986. The incidence and effects of ingested plastic in seabirds. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Ryan, Peter G AB - This thesis comprises two major sections: an assessment of the incidence of plastic particles at sea and in seabirds {Chapters 1-3), and an investigation of the postulated effects of plastic ingestion on seabirds (Chapters 4-7). The incidence of plastic at sea was recorded from neuston trawls performed monthly at 120 sampling stations off the southwestern Cape, South Africa, during 1977-78. The types of plastic particles collected are described, and the temporal and spatial distribution patterns of plastic pollution are discussed. Ingested plastic was recorded from 36 of 60 seabird species sampled. The effect of different sampling techniques on the incidence of plastic is discussed. The frequencies of occurrence of plastic colour-types in birds are compared with those of particles collected at sea in neuston trawls. Pale particles were under-represented in all species, but the disparity was less for small than for large species, which may account for the higher incidence of ingested plastic in small than in large species. DA - 1986 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1986 T1 - The incidence and effects of ingested plastic in seabirds TI - The incidence and effects of ingested plastic in seabirds UR - http://hdl.handle.net/11427/19522 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/19522
dc.identifier.vancouvercitationRyan PG. The incidence and effects of ingested plastic in seabirds. [Thesis]. University of Cape Town ,Faculty of Science ,Department of Biological Sciences, 1986 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/19522en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentDepartment of Biological Sciencesen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherZoologyen_ZA
dc.titleThe incidence and effects of ingested plastic in seabirdsen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
thesis_sci_1986_ryan_peter_g.pdf
Size:
3.33 MB
Format:
Adobe Portable Document Format
Description:
Download
Collections
Masters