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Accumulation of fishing debris, plastic litter and other artefacts on Heard Island and Macquarie Island, Southern Ocean

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Numéro du document:
CCAMLR-VIII/BG/11
Auteur(s):
Slip, D.J. and H.R. Burton
Approuvé par:
Admin Admin (Secrétariat de la CCAMLR)
Accessibility Categories
Open Access (OA)
Review Finalised:
Non
Point(s) de l'ordre du jour
Publication:
Slip, D.J. and H.R. Burton. 1991. Accumulation of Fishing Debris, Plastic Litter, and Other Artefacts, on Heard and Macquarie Islands in the Southern Ocean. Environ. Conserv., 18(03): 249 - 254. https://doi.org/10.1017/S0376892900022177.
Résumé

Sections of coastline of Heard and Macquarie Islands were surveyed for marine debris in summer 1987-88, and 1989 respectively. These surveys were carried out at the same sites of previous surveys in 1986-87 at Heard Island, and 1988 at Macquarie Island. The minimum rate of artefact accumulation was 13 objects km-1 year-1 for Heard Island, and 9.1 objects km-1 year-1 for Macquarie Island. Drift cards released from known locations and collected on the two islands show a similar artefact catchment area. Plastic litter was a major component of the debris at both islands. Fisheries related debris accounted for 40% of all artefacts on Heard Island compared to 29% on Macquarie Island. Entanglement of fur seals appears to be more common at Heard Island, while plastic ingestion by seabirds appears more common at Macquarie Island.