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- Title
Interdependence in Coastal Tourist Territories between Marine Litter and Immediate Tourist Zoning Density: Methodological Approach for Urban Sustainable Development.
- Authors
López-Arquillo, Juan Diego; Oliveira, Cristiana; Serrano González, Jose; Durán Sánchez, Amador
- Abstract
Highlights: What are the main findings? The presence of marine litter in sublittoral areas is determined by the density of coastal tourist territories and is lower in areas predominantly used for tourism versus those of mostly resi-dential use; Data collection methodology using depth line transects is essential for estimating marine litter density; The presence of macro debris from motor vehicle tyres is independent of urban areas and their associated density and is also unrelated to maritime access. What are the implications of the main finding? The density of coastal tourist territories plays a crucial role in determining the possible presence of marine litter in sublittoral areas and developing specific preventive policies; It is not possible, with current technology, to use remote means of complex surface and bottom collection of marine litter without depth transects; The deposition of a characteristic type of marine litter, used tyres, shows patterns of occurrence totally independent of coastal urban density. The coastal strip, characterized by the urbanization of coastal tourist territories (CTTs), has expanded over decades through civil engineering, altering the shoreline dynamics and creating artificial beaches crucial for tourism. To examine the relationship between extensive land use in CTTs for tourism and residences and the presence of marine litter, a specific parametric study was conducted along the coast of Tenerife, the largest island in the Canary Islands. Due to Tenerife's geographical location and exposure to the descending Gulf Stream flow, the coastal waters in the selected zone experience waste impact at both local and global scales. However, the presence of marine litter deposited by ocean currents is at a micro level and falls outside the scope of this report. This study parameterised urban reality in study areas, and the presence of macro waste has been parameterised using standardised units of measurement. This enables the establishment of source measurements that will contribute to preventative measures against this type of coastal pollution. The interdependence between tourist zoning, civil seafront engineering works along the seafront, and marine litter presence in inaccessible and visible areas for tourists requires a methodology to better understand waste origin and loading areas. This knowledge is crucial for an effective local monitoring system. A quantitative overlay reading methodology has been designed in the urban setting through calculations of urban densities, while examining the waste in these areas' immediate infralittoral flooring through the use of visual underwater extraction. Anticipating the type and quantity of waste in each area will allow for the implementation of effective awareness, promoting action for preventative and corrective measures at the urban level. The results show a direct dependence between urban density and the presence of waste, as well as an equation that makes it possible to anticipate the amount of waste according to urban density and its relational vector. There is no discontinuity between them, as each area is affected by others to the extent that they establish the parametric continuity conditions determining each field. Therefore, it is possible to relate them beyond a one-on-one relationship. This approach fosters sustainable tourism development, reducing pressure on the sea and enhancing the utilisation of tourism revenues in measures to address waste-related challenges and promotes sustainable tourism development in Europe's coastal regions.
- Subjects
TENERIFE (Canary Islands); CANARY Islands; MARINE debris; SUSTAINABLE urban development; BEACHES; MOTOR vehicle tires; URBAN density; GULF Stream
- Publication
Land (2012), 2024, Vol 13, Issue 1, p50
- ISSN
2073-445X
- Publication type
Article
- DOI
10.3390/land13010050