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  • Antarctic bacterioplankton
  • Climate change
  • Paris, France
  • Nature Publishing Group
  • American Institute of Physics (AIP)
  • 1
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    IOC-UNESCO | Paris, France
    Publication Date: 2024-04-06
    Description: The global ocean acidification research community responded to the Decade call by co-designing a pioneering UN Decade programme entitled “Ocean Acidification Research for Sustainability” (OARS). The programme is led by three partners: Plymouth Marine Laboratory (UK), University of Washington (USA), and IOC-UNESCO. OARS provides the blueprint to foster cooperation of ocean acidification research, improve understanding of the impacts of the phenomenon and, ultimately, develop approaches for mitigating its effects by acting on sources and identify adaptation approaches. The OARS white papers in this publication summarize where the global community currently is on this path and what should be done in the future to include the ocean acidification dimension for combatting the degradation of ocean health under various anthropogenic stressors including the changing climate.
    Description: Published
    Description: Refereed
    Keywords: OARS ; Ocean acidification ; Climate change
    Repository Name: AquaDocs
    Type: Report
    Format: 70pp.
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  • 2
    Publication Date: 2021-05-19
    Description: A report to the African Union Commission (AUC) at the United Nations Climate Change Conference in Copenhagen (7-18 December 2009). “In Gambia ... In 1998, the high water mark (HWM) was 50 m from the new Banjul-Serekunda Highway; in 2003 the HWM was only about 15 m from the highway” (Adaptation to Coastal Climate Change Project, ACCC, 2006a). Between Cape Point and the Banjul dockyard and the area between the Palm Grove Hotel and the Muslim cemetery erosion rates of between 15 and 20 m were recorded from 1964 to 1982...” In one brief paragraph we see the relentless attacks of rising sea levels and growing storm surges on one coastline, threatening four significant elements of society – transport, trade, tourism and tradition.
    Description: Published
    Keywords: Climate change
    Repository Name: AquaDocs
    Type: Report , Not Known
    Format: 131pp.
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  • 3
    Publication Date: 2021-05-19
    Description: Pelagic fish stocks are the most important fish stocks in terms of biomass and catches in the Canary Current Large Marine Ecosystem. The small pelagic stocks include species with an affinity for temperate waters (sardine, chub mackerel and Atlantic horse mackerel) and species that prefer tropical waters (sardinella and Cunene horse mackerel). Hence, the distribution of the various stocks is strongly determined by the seasonal displacement of the tropical front. As small pelagic fish feed primarily on plankton, changes in primary production may affect the abundance of the stocks. The waters of the Canary Current have shown a drop in primary production over the past three decades, which may be related to the observed increase in water temperature. However, the drop in primary production is not yet reflected by the pelagic fish catches. On the other hand, changes in the abundance and distribution of sardine and sardinella are probably the effect of climatic change. Present management of small pelagics is hampered by a lack of scientific data. Because these stocks are very important to the human population of the region, good quality data should be collected in order to improve the assessments.
    Description: Published
    Keywords: Environment ; Tuna ; Climate change ; CCLME ; ASFA15::P::Pelagic fish ; ASFA15::F::Fisheries
    Repository Name: AquaDocs
    Type: Report Section , Refereed
    Format: pp. 197-213
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  • 4
    Publication Date: 2022-05-25
    Description: © The Author(s), 2012. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Scientific Reports 2 (2012): 553, doi:10.1038/srep00553.
    Description: Sea surface temperature imagery, satellite altimetry, and a surface drifter track reveal an unusual tilt in the Gulf Stream path that brought the Gulf Stream to 39.9°N near the Middle Atlantic Bight shelfbreak—200 km north of its mean position—in October 2011, while a large meander brought Gulf Stream water within 12 km of the shelfbreak in December 2011. Near-bottom temperature measurements from lobster traps on the outer continental shelf south of New England show distinct warming events (temperature increases exceeding 6°C) in November and December 2011. Moored profiler measurements over the continental slope show high salinities and temperatures, suggesting that the warm water on the continental shelf originated in the Gulf Stream. The combination of unusual water properties over the shelf and slope in late fall and the subsequent mild winter may affect seasonal stratification and habitat selection for marine life over the continental shelf in 2012.
    Description: Profiler data were made available by the Ocean Observatory Initiative (OOI) during the construction phase of the project. The OOI is funded by the National Science Foundation and managed by the Consortium for Ocean Leadership. Drifter data were provided by Tim Shaw and David Calhoun at Cape Fear Community College.GGGwas supported by NSFGrant OCE-1129125. RET was supported by the Postdoctoral Scholar Program at the Woods Hole Oceanographic Institution, with funding provided by the Cooperative Institute for the North Atlantic Region. MA was supported by the Penzance Endowed Fund in Support of Assistant Scientists.
    Keywords: Ecology ; Climate change ; Atmospheric science ; Oceanography
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
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  • 5
    Publication Date: 2022-05-26
    Description: © The Author(s), 2012. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in The ISME Journal 6 (2012): 1901-1915, doi:10.1038/ismej.2012.31.
    Description: Antarctic surface oceans are well-studied during summer when irradiance levels are high, sea ice is melting and primary productivity is at a maximum. Coincident with this timing, the bacterioplankton respond with significant increases in secondary productivity. Little is known about bacterioplankton in winter when darkness and sea-ice cover inhibit photoautotrophic primary production. We report here an environmental genomic and small subunit ribosomal RNA (SSU rRNA) analysis of winter and summer Antarctic Peninsula coastal seawater bacterioplankton. Intense inter-seasonal differences were reflected through shifts in community composition and functional capacities encoded in winter and summer environmental genomes with significantly higher phylogenetic and functional diversity in winter. In general, inferred metabolisms of summer bacterioplankton were characterized by chemoheterotrophy, photoheterotrophy and aerobic anoxygenic photosynthesis while the winter community included the capacity for bacterial and archaeal chemolithoautotrophy. Chemolithoautotrophic pathways were dominant in winter and were similar to those recently reported in global ‘dark ocean’ mesopelagic waters. If chemolithoautotrophy is widespread in the Southern Ocean in winter, this process may be a previously unaccounted carbon sink and may help account for the unexplained anomalies in surface inorganic nitrogen content.
    Description: CSR was supported by an NSF Postdoctoral Fellowship in Biological Informatics (DBI-0532893). The research was supported by National Science Foundation awards: ANT 0632389 (to AEM and JJG), and ANT 0632278 and 0217282 (to HWD), all from the Antarctic Organisms and Ecosystems Program.
    Keywords: Antarctic bacterioplankton ; Metagenomics ; Chemolithoautotrophy
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/msword
    Format: application/pdf
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