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Pham, Christopher K.; Ramirez-llodra, Eva; Alt, Claudia H. S.; Amaro, Teresa; Bergmann, Melanie; Canals, Miquel; Company, Joan B.; Davies, Jaime; Duineveld, Gerard; Galgani, Francois; Howell, Kerry; Huvenne, Veerle A. I.; Isidro, Eduardo; Jones, Daniel O. B.; Lastras, Galderic; Morato, Telmo; Gomes-pereira, Jose Nuno; Purser, Autun; Stewart, Heather; Tojeira, Ines; Tubau, Xavier; Van Rooij, David; Tyler, Paul A.. |
Anthropogenic litter is present in all marine habitats, from beaches to the most remote points in the oceans. On the seafloor, marine litter, particularly plastic, can accumulate in high densities with deleterious consequences for its inhabitants. Yet, because of the high cost involved with sampling the seafloor, no large-scale assessment of distribution patterns was available to date. Here, we present data on litter distribution and density collected during 588 video and trawl surveys across 32 sites in European waters. We found litter to be present in the deepest areas and at locations as remote from land as the Charlie-Gibbs Fracture Zone across the Mid-Atlantic Ridge. The highest litter density occurs in submarine canyons, whilst the lowest density can... |
Tipo: Text |
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Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00204/31505/29903.pdf |
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Cuvelier, Daphne; Gollner, Sabine; Jones, Daniel Ob; Kaiser, Stefanie; Arbizu, Pedro Martinez; Menzel, Lena; Mestre, Nelia C.; Morato, Telmo; Pham, Christopher; Pradillon, Florence; Purser, Autun; Raschka, Uwe; Sarrazin, Jozee; Simon-lledo, Erik; Stewart, Ian M.; Stuckas, Heiko; Sweetman, Andrew K.; Colaco, Ana. |
Mining impacts will affect local populations to different degrees. Impacts range from removal of habitats and possible energy sources to pollution and smaller-scale alterations in local habitats that, depending on the degree of disturbance, can lead to extinction of local communities. While there is a shortage or even lack of studies investigating impacts that resemble those caused by actual mining activity, the information available on the potential long-lasting impacts of seabed mining emphasise the need for effective environmental management plans. These plans should include efforts to mitigate deep-sea mining impact such as avoidance, minimisation and potentially restoration actions, to maintain or encourage reinstatement of a resilient ecosystem. A... |
Tipo: Text |
Palavras-chave: Deep sea; Mining; Restoration; Mitigation; Impacts; Assisted recovery; (re-)colonisation. |
Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00470/58209/60711.pdf |
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Gollner, Sabine; Kaiser, Stefanie; Menzel, Lena; Jones, Daniel O. B.; Brown, Alastair; Mestre, Nelia C.; Van Oevelen, Dick; Menot, Lenaick; Colaco, Ana; Canals, Miguel; Cuvelier, Daphne; Durden, Jennifer M.; Gebruk, Andrey; Egho, Great A.; Haeckel, Matthias; Marcon, Yann; Mevenkamp, Lisa; Morato, Telmo; Pham, Christopher K.; Purser, Autun; Sanchez-vidal, Anna; Vanreusel, Ann; Vink, Annemiek; Arbizu, Pedro Martinez. |
With increasing demand for mineral resources, extraction of polymetallic sulphides at hydrothermal vents, cobalt-rich ferromanganese crusts at seamounts, and polymetallic nodules on abyssal plains may be imminent. Here, we shortly introduce ecosystem characteristics of mining areas, report on recent mining developments, and identify potential stress and disturbances created by mining. We analyze species’ potential resistance to future mining and perform meta-analyses on population density and diversity recovery after disturbances most similar to mining: volcanic eruptions at vents, fisheries on seamounts, and experiments that mimic nodule mining on abyssal plains. We report wide variation in recovery rates among taxa, size, and mobility of fauna. While... |
Tipo: Text |
Palavras-chave: Deep ocean; Disturbance; Minerals; Mining; Abyssal plains; Hydrothermal vents; Seamounts; Resilience; Recovery; Benthos. |
Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00382/49291/49690.pdf |
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Canals, Miquel; Pham, Christopher K.; Bergmann, Melanie; Gutow, Lars; Hanke, Georg; Van Sebille, Erik; Angiolillo, Michela; Buhl-mortensen, Lene; Cau, Alessando; Ioakeimidis, Christos; Kammann, Ulrike; Lundsten, Lonny; Papatheodorou, George; Purser, Autun; Sanchez-vidal, Anna; Schulz, Marcus; Vinci, Matteo; Chiba, Sanae; Galgani, Francois; Langenkämper, Daniel; Möller, Tiia; Nattkemper, Tim W.; Ruiz, Marta; Suikkanen, Sanna; Woodall, Lucy; Fakiris, Elias; Molina Jack, Maria Eugenia; Giorgetti, Alessandra. |
The seafloor covers some 70% of the Earth's surface and has been recognized as a major sink for marine litter. Still, litter on the seafloor is the least investigated fraction of marine litter, which is not surprising as most of it lies in the deep sea, i.e. the least explored ecosystem. Although marine litter is considered a major threat for the oceans, monitoring frameworks are still being set up. This paper reviews current knowledge and methods, identifies existing needs, and points to future developments that are required to address the estimation of seafloor macrolitter. It provides background knowledge and conveys the views and thoughts of scientific experts on seafloor marine litter offering a review of monitoring and ocean modeling techniques.... |
Tipo: Text |
Palavras-chave: Seafloor; Marine litter; Trawl surveys; Visual surveys; Deep sea; Modelling; Data harmonisation. |
Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00657/76947/78156.pdf |
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