ResÃduos sÃlidos bentÃnicos em ambientes recifais de Pernambuco e na abordagem das operadoras de mergulho




Benthic marine debris are those debris deposited on the bottom of the oceans. Studies of this type of pollutant are still scarce all over the world, both about the qualiquantification, as well as about the understanding of how social actors linked to the marine environment are behaving on this issue. Thus, this study aimed to qualiquantify the benthic marine debris in two different reef environments of the Pernambuco coast, Brazil (a semi-submerged reef exposed to a high degree of urbanization and tourism, located on the Boa Viagem Beach, Recife, and; a submerged reef in a coastal region with little urban and tourist activity, located in front of the Goiana River estuary, north of the state). Another objective was to evaluate the approach of dive schools and operators of Pernambuco State in relation to marine pollution, mainly the one generated by marine debris. In 28 surveying occasions of the semi-submerged reef of Boa Viagem, a total of 11 261 debris was observed, mostly plastics. Debris trapped on the reef, sand or macroalgae are different from those observed loose on the reef. The adjacent beach was identified as the main source of debris to the studied reef. In the submerged reef near the Goiana River estuary, 27 transects were sampled and no benthic marine debris was observed. Areas with potential to retain benthic marine debris were identified. It was realized interviews with owners or employees of 14 dive schools/operators. We observed different behaviors in relation to the prevention and remediation of pollution from marine debris. Through this study it was evident the need to expand the studies about marine debris on the coast of Brazil, also including other environments besides beaches. Coastal reefs should also be included in plans for cleaning and management of marine pollution. Studies in places still under low anthropic impact should also be expanded, so there would be baseline data for future works. The social actors directly involved with the marine environment, among them dive schools/operators, need to better understand their role in changes that have to be made, passing from passive to active in the processes of management of the coastal environment


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