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Title: First inventory of marine debris on Alegranza, an uninhabited island in the Northeast Atlantic
Authors: Herrera Ulibarri, Alicia 
Rivera, J. Alexis
Moreno, Teresa
Martínez Sánchez, Ico 
Gómez Cabrera, María Milagrosa 
UNESCO Clasification: 2510 Oceanografía
330811 Control de la contaminación del agua
331210 Plásticos
Keywords: Marine pollution
Plastic pollution
Marine litter
Marine traffic
Plastic, et al
Issue Date: 2022
Journal: Marine Pollution Bulletin 
Abstract: Alegranza is the most northerly island of the Canary Islands archipelago, the first obstacle crossed by the Canary Current. From July to October 2020, six expeditions were led to the island to make a first inventory of marine debris and its possible source and origin. In total, 3667 objects weighing 321 kg were removed, excluding wooden objects. Of these, 97.7% were plastics, the most abundant being drink bottles (25.4%). While knowing the origin, source and pathway of debris is difficult, legible labels provided valuable information. In Alegranza, 66.7% of the legible bottle labels indicated Asian countries of manufacture, which is evidence that the source is maritime traffic in the region. The lobster trap license labels from the east coast of the United States and Canada were dated from 1999 to 2018, supporting both the exogenous origin and long lifetime in the ocean of these debris.
ISSN: 0025-326X
DOI: 10.1016/j.marpolbul.2022.113604
Source: Marine Pollution Bulletin [ISSN 0025-326X], v. 178, 113604, (Mayo 2022)
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