Their origin is linked to a hot spot or plume that causes anomalously hot mantle material to intrude the African plate. The Canary Islands, approximately 100 km off the African coast, display all features of an active ocean island chain. Troll, Juan Carlos Carracedo, in The Geology of the Canary Islands, 2016 Abstract Some species are becoming locally or even regionally extinct because of a high variety of threatening factors that are currently affecting the coastal environments of this archipelago. Pollution from pipelines, desalination plants, and freshwater runoff occasionally triggers shifts in coastal environments, but many are spatially limited, as is the case with pollution from aquaculture’s offshore fish cages.Įffective management is urgently needed, since only < 1% of Canarian waters are protected under the umbrella of the network of protected natural spaces. Artificial substrates, for example, artificial beaches, rock walls, waterfronts, etc., currently represent 9% of the Canarian coast, causing a drastic transformation of the shoreline. Coastal fisheries have been chronically overexploited throughout the archipelago in recent decades, with a sharp depletion of commercial fish and mollusk species. The main anthropogenic perturbations are overfishing, coastal development, and pollution. Coastal environments are subjected to intense human pressure, whose effects can be seen in many ecosystems such as the presence of extensive sea-barren bottoms in rocky reefs and a clear regression of seagrass meadows. The Canary Islands is an interesting archipelago in terms of geological and topographical characteristics, and also because of its current overpopulation. Rodrigo Riera, Juan Domingo Delgado, in World Seas: an Environmental Evaluation (Second Edition), 2019 Abstract
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