Deep sea Archives - One Earth - One Ocean e. V. https://oneearth-oneocean.com/en/category/deep-sea-en/ Eine weitere WordPress-Website Tue, 20 Dec 2022 21:23:47 +0000 en-US hourly 1 https://wordpress.org/?v=6.5.5 https://oneearth-oneocean.com/wp-content/uploads/2022/08/cropped-oeoo-logo-unterzeile-blau-1-32x32.jpg Deep sea Archives - One Earth - One Ocean e. V. https://oneearth-oneocean.com/en/category/deep-sea-en/ 32 32 Deepwater marine litter densities and composition from submersible video-transects around the ABC-islands, Dutch Caribbean https://oneearth-oneocean.com/en/research-en/2014/deepwater-marine-litter-densities-and-composition-from-submersible-video-transects-around-the-abc-islands-dutch-caribbean-2/ https://oneearth-oneocean.com/en/research-en/2014/deepwater-marine-litter-densities-and-composition-from-submersible-video-transects-around-the-abc-islands-dutch-caribbean-2/#respond Mon, 29 Dec 2014 23:04:54 +0000 https://oneearth-oneocean.com/2014/12/30/deepwater-marine-litter-densities-and-composition-from-submersible-video-transects-around-the-abc-islands-dutch-caribbean-2/ A.O. Debrot, E. Vinke, G. van der Wende, A. Hylkema, J.K. Reed, Deepwater marine litter densities and composition from submersible video-transects around the ABC-islands, Dutch Caribbean, Marine Pollution Bulletin, Volume 88, Issues 1?2, 15 November 2014, Pages 361-365, ISSN 0025-326X, http://dx.doi.org/10.1016/j.marpolbul.2014.08.016. (http://www.sciencedirect.com/science/article/pii/S0025326X14005463) Abstract: Baseline data on anthropogenic seafloor debris contamination in the year 2000 is provided for 24 submersible video transects at depths of 80?900 m, off the Dutch ABC-islands (Aruba, Bonaire, Curaçao), in the southeastern Caribbean Sea. In total, 202 objects were documented from a combined 21,184 m of transect, ranging from sandy lower island-slope to rocky upper island-slope habitat. Debris densities differed significantly with depth. Highest debris accumulation (0.459 items 100 m?2 or 4590 items per km2) occurred at depths of 300?600 m on more shallow-sloping (20?30°) sand and silt bottoms. The overall average debris density was 0.27 objects per 100 m2 (or 2700 items per km2), which is an order of magnitude higher than most other deepwater debris studies. What we describe may be representative for other small, populated, steep volcanic Caribbean islands. Food and beverage-related items were the single largest usage category identified (44% of objects; mostly glass beverage bottles). Keywords: Caribbean; Seafloor; Marine; Deepwater; Debris; Pollution

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]]> A.O. Debrot, E. Vinke, G. van der Wende, A. Hylkema, J.K. Reed, Deepwater marine litter densities and composition from submersible video-transects around the ABC-islands, Dutch Caribbean, Marine Pollution Bulletin, Volume 88, Issues 1?2, 15 November 2014, Pages 361-365, ISSN 0025-326X, http://dx.doi.org/10.1016/j.marpolbul.2014.08.016. (http://www.sciencedirect.com/science/article/pii/S0025326X14005463) Abstract: Baseline data on anthropogenic seafloor debris contamination in the year 2000 is provided for 24 submersible video transects at depths of 80?900 m, off the Dutch ABC-islands (Aruba, Bonaire, Curaçao), in the southeastern Caribbean Sea. In total, 202 objects were documented from a combined 21,184 m of transect, ranging from sandy lower island-slope to rocky upper island-slope habitat. Debris densities differed significantly with depth. Highest debris accumulation (0.459 items 100 m?2 or 4590 items per km2) occurred at depths of 300?600 m on more shallow-sloping (20?30°) sand and silt bottoms. The overall average debris density was 0.27 objects per 100 m2 (or 2700 items per km2), which is an order of magnitude higher than most other deepwater debris studies. What we describe may be representative for other small, populated, steep volcanic Caribbean islands. Food and beverage-related items were the single largest usage category identified (44% of objects; mostly glass beverage bottles). Keywords: Caribbean; Seafloor; Marine; Deepwater; Debris; Pollution

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]]> https://oneearth-oneocean.com/en/research-en/2014/deepwater-marine-litter-densities-and-composition-from-submersible-video-transects-around-the-abc-islands-dutch-caribbean-2/feed/ 0 Deepwater marine litter densities and composition from submersible video-transects around the ABC-islands, Dutch Caribbean https://oneearth-oneocean.com/en/atlantic-en/2014/deepwater-marine-litter-densities-and-composition-from-submersible-video-transects-around-the-abc-islands-dutch-caribbean/ https://oneearth-oneocean.com/en/atlantic-en/2014/deepwater-marine-litter-densities-and-composition-from-submersible-video-transects-around-the-abc-islands-dutch-caribbean/#respond Fri, 12 Sep 2014 19:42:39 +0000 https://oneearth-oneocean.com/2014/09/12/deepwater-marine-litter-densities-and-composition-from-submersible-video-transects-around-the-abc-islands-dutch-caribbean/ A.O. Debrot, E. Vinke, G. van der Wende, A. Hylkema, J.K. Reed, Deepwater marine litter densities and composition from submersible video-transects around the ABC-islands, Dutch Caribbean, Marine Pollution Bulletin, Available online 28 August 2014, ISSN 0025-326X, http://dx.doi.org/10.1016/j.marpolbul.2014.08.016. (http://www.sciencedirect.com/science/article/pii/S0025326X14005463) Abstract: Baseline data on anthropogenic seafloor debris contamination in the year 2000 is provided for 24 submersible video transects at depths of 80?900 m, off the Dutch ABC-islands (Aruba, Bonaire, Curaçao), in the southeastern Caribbean Sea. In total, 202 objects were documented from a combined 21,184 m of transect, ranging from sandy lower island-slope to rocky upper island-slope habitat. Debris densities differed significantly with depth. Highest debris accumulation (0.459 items 100 m?2 or 4590 items per km2) occurred at depths of 300?600 m on more shallow-sloping (20?30°) sand and silt bottoms. The overall average debris density was 0.27 objects per 100 m2 (or 2700 items per km2), which is an order of magnitude higher than most other deepwater debris studies. What we describe may be representative for other small, populated, steep volcanic Caribbean islands. Food and beverage-related items were the single largest usage category identified (44% of objects; mostly glass beverage bottles). Keywords: Caribbean; Seafloor; Marine; Deepwater; Debris; Pollution

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]]> A.O. Debrot, E. Vinke, G. van der Wende, A. Hylkema, J.K. Reed, Deepwater marine litter densities and composition from submersible video-transects around the ABC-islands, Dutch Caribbean, Marine Pollution Bulletin, Available online 28 August 2014, ISSN 0025-326X, http://dx.doi.org/10.1016/j.marpolbul.2014.08.016. (http://www.sciencedirect.com/science/article/pii/S0025326X14005463) Abstract: Baseline data on anthropogenic seafloor debris contamination in the year 2000 is provided for 24 submersible video transects at depths of 80?900 m, off the Dutch ABC-islands (Aruba, Bonaire, Curaçao), in the southeastern Caribbean Sea. In total, 202 objects were documented from a combined 21,184 m of transect, ranging from sandy lower island-slope to rocky upper island-slope habitat. Debris densities differed significantly with depth. Highest debris accumulation (0.459 items 100 m?2 or 4590 items per km2) occurred at depths of 300?600 m on more shallow-sloping (20?30°) sand and silt bottoms. The overall average debris density was 0.27 objects per 100 m2 (or 2700 items per km2), which is an order of magnitude higher than most other deepwater debris studies. What we describe may be representative for other small, populated, steep volcanic Caribbean islands. Food and beverage-related items were the single largest usage category identified (44% of objects; mostly glass beverage bottles). Keywords: Caribbean; Seafloor; Marine; Deepwater; Debris; Pollution

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]]> https://oneearth-oneocean.com/en/atlantic-en/2014/deepwater-marine-litter-densities-and-composition-from-submersible-video-transects-around-the-abc-islands-dutch-caribbean/feed/ 0 Deep-Sea Survey Reveals the Mysteries of the Deep: Trash https://oneearth-oneocean.com/en/nonresearch-en/2014/699/ https://oneearth-oneocean.com/en/nonresearch-en/2014/699/#respond Wed, 16 Jul 2014 20:55:56 +0000 https://oneearth-oneocean.com/2014/07/16/699/ http://blog.oceanconservancy.org/2014/05/09/deep-sea-survey-reveals-the-mysteries-of-the-deep-trash/ Deep-Sea Survey Reveals the Mysteries of the Deep: Trash Posted On May 9, 2014 by Nick Mallos Covering over 70 percent of our planet, the ocean is still largely unexplored. Sailors and explorers have been traversing the seven seas for centuries, but we?ve barely scratched the surface. In fact, more people have been to the moon than have visited the ocean?s abyss, which is why a recent scientific paper from the journal PLOS ONE is so disconcerting. In one of the largest scientific seafloor surveys to date, scientists used remotely-operated vehicles and trawl nets to examine 32 deep-sea sites in the Atlantic and Arctic oceans, as well as the Mediterranean Sea. The astonishing part?they found plastic bottles, fishing gear, and other man-made debris in all of them. Some of the debris items found had traveled more than 1,200 miles from the shore?most of it settling in remote, deep-sea caverns.

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]]> http://blog.oceanconservancy.org/2014/05/09/deep-sea-survey-reveals-the-mysteries-of-the-deep-trash/ Deep-Sea Survey Reveals the Mysteries of the Deep: Trash Posted On May 9, 2014 by Nick Mallos Covering over 70 percent of our planet, the ocean is still largely unexplored. Sailors and explorers have been traversing the seven seas for centuries, but we?ve barely scratched the surface. In fact, more people have been to the moon than have visited the ocean?s abyss, which is why a recent scientific paper from the journal PLOS ONE is so disconcerting. In one of the largest scientific seafloor surveys to date, scientists used remotely-operated vehicles and trawl nets to examine 32 deep-sea sites in the Atlantic and Arctic oceans, as well as the Mediterranean Sea. The astonishing part?they found plastic bottles, fishing gear, and other man-made debris in all of them. Some of the debris items found had traveled more than 1,200 miles from the shore?most of it settling in remote, deep-sea caverns.

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]]> https://oneearth-oneocean.com/en/nonresearch-en/2014/699/feed/ 0 Marine litter is everywhere https://oneearth-oneocean.com/en/nonresearch-en/2014/marine-litter-is-everywhere/ https://oneearth-oneocean.com/en/nonresearch-en/2014/marine-litter-is-everywhere/#respond Wed, 16 Jul 2014 20:44:55 +0000 https://oneearth-oneocean.com/2014/07/16/marine-litter-is-everywhere/ http://www.ub.edu/web/ub/en/menu_eines/noticies/2014/04/061.html Marine litter is everywhere 02/05/2014 Recerca A new paper published on the journal PLOS ONE alerts that even in the deepest ocean depths you can find bottles, plastic bags, fishing nets and other types of human litter. Experts from the Consolidated Research Group on Marine Geosciences of the University of Barcelona (UB), led by Professor Miquel Canals, participated in the seafloor survey. Marine litter is a serious environmental problem that affects coastal and oceanic ecosystems all over the planet. Geologists Galderic Lastras and Xavier Tubau (UB) also participated in the survey that describes the presence of litter on Mediterranean, Arctic and Atlantic seafloors ?from the continental shelf of Europe to the Mid-Atlantic Ridge? at all depths (from 35 m down to 4500 m).

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]]> http://www.ub.edu/web/ub/en/menu_eines/noticies/2014/04/061.html Marine litter is everywhere 02/05/2014 Recerca A new paper published on the journal PLOS ONE alerts that even in the deepest ocean depths you can find bottles, plastic bags, fishing nets and other types of human litter. Experts from the Consolidated Research Group on Marine Geosciences of the University of Barcelona (UB), led by Professor Miquel Canals, participated in the seafloor survey. Marine litter is a serious environmental problem that affects coastal and oceanic ecosystems all over the planet. Geologists Galderic Lastras and Xavier Tubau (UB) also participated in the survey that describes the presence of litter on Mediterranean, Arctic and Atlantic seafloors ?from the continental shelf of Europe to the Mid-Atlantic Ridge? at all depths (from 35 m down to 4500 m).

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]]> https://oneearth-oneocean.com/en/nonresearch-en/2014/marine-litter-is-everywhere/feed/ 0 A New Pelagic Habitat for Microorganisms and Invertebrates. https://oneearth-oneocean.com/en/research-en/2014/a-new-pelagic-habitat-for-microorganisms-and-invertebrates/ https://oneearth-oneocean.com/en/research-en/2014/a-new-pelagic-habitat-for-microorganisms-and-invertebrates/#respond Wed, 09 Jul 2014 19:47:59 +0000 https://oneearth-oneocean.com/2014/07/09/a-new-pelagic-habitat-for-microorganisms-and-invertebrates/ http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0100289 Reisser J, Shaw J, Hallegraeff G, Proietti M, Barnes DKA, et al. (2014) Millimeter-Sized Marine Plastics: A New Pelagic Habitat for Microorganisms and Invertebrates. PLoS ONE 9(6): e100289. doi:10.1371/journal.pone.0100289 Abstract Millimeter-sized plastics are abundant in most marine surface waters, and known to carry fouling organisms that potentially play key roles in the fate and ecological impacts of plastic pollution. In this study we used scanning electron microscopy to characterize biodiversity of organisms on the surface of 68 small floating plastics (length range = 1.7?24.3 mm, median = 3.2 mm) from Australia-wide coastal and oceanic, tropical to temperate sample collections. Diatoms were the most diverse group of plastic colonizers, represented by 14 genera. We also recorded ?epiplastic? coccolithophores (7 genera), bryozoans, barnacles (Lepas spp.), a dinoflagellate (Ceratium), an isopod (Asellota), a marine worm, marine insect eggs (Halobates sp.), as well as rounded, elongated, and spiral cells putatively identified as bacteria, cyanobacteria, and fungi. Furthermore, we observed a variety of plastic surface microtextures, including pits and grooves conforming to the shape of microorganisms, suggesting that biota may play an important role in plastic degradation. This study highlights how anthropogenic millimeter-sized polymers have created a new pelagic habitat for microorganisms and invertebrates. The ecological ramifications of this phenomenon for marine organism dispersal, ocean productivity, and biotransfer of plastic-associated pollutants, remains to be elucidated. http://www.plosone.org/article/fetchObject.action?uri=info%3Adoi%2F10.1371%2Fjournal.pone.0100289&representation=PDF

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]]> http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0100289 Reisser J, Shaw J, Hallegraeff G, Proietti M, Barnes DKA, et al. (2014) Millimeter-Sized Marine Plastics: A New Pelagic Habitat for Microorganisms and Invertebrates. PLoS ONE 9(6): e100289. doi:10.1371/journal.pone.0100289 Abstract Millimeter-sized plastics are abundant in most marine surface waters, and known to carry fouling organisms that potentially play key roles in the fate and ecological impacts of plastic pollution. In this study we used scanning electron microscopy to characterize biodiversity of organisms on the surface of 68 small floating plastics (length range = 1.7?24.3 mm, median = 3.2 mm) from Australia-wide coastal and oceanic, tropical to temperate sample collections. Diatoms were the most diverse group of plastic colonizers, represented by 14 genera. We also recorded ?epiplastic? coccolithophores (7 genera), bryozoans, barnacles (Lepas spp.), a dinoflagellate (Ceratium), an isopod (Asellota), a marine worm, marine insect eggs (Halobates sp.), as well as rounded, elongated, and spiral cells putatively identified as bacteria, cyanobacteria, and fungi. Furthermore, we observed a variety of plastic surface microtextures, including pits and grooves conforming to the shape of microorganisms, suggesting that biota may play an important role in plastic degradation. This study highlights how anthropogenic millimeter-sized polymers have created a new pelagic habitat for microorganisms and invertebrates. The ecological ramifications of this phenomenon for marine organism dispersal, ocean productivity, and biotransfer of plastic-associated pollutants, remains to be elucidated. http://www.plosone.org/article/fetchObject.action?uri=info%3Adoi%2F10.1371%2Fjournal.pone.0100289&representation=PDF

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