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  • ANT-XXIV/2; Arctic Ocean; ARK-XXII/2; AWI_Paleo; BC; Box corer; Center for Marine Environmental Sciences; Cruise/expedition; Date/Time of event; Davis Strait; Elevation of event; Event label; Galathea_3_Win3; Galathea_3_Win4; Galathea_3_Win6; Galathea 3; HDMS Vaedderen; KT07-14; KT07-14_MC03; KT07-14_MC04; KT07-14_MC07; Latitude of event; Longitude of event; Maria S. Merian; MARUM; MC03; MC04; MC07; MSM09/2; MSM09/2_432-5; MSM09/2_453-7; MSM09/2_472-2; MUC; MultiCorer; Name; Number of e-ribotype; Number of genotype; Number of morphospecies; Number of sequences; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS70/239-6; PS70/265-1; PS70/265-2; PS70/299-2; PS70/309-8; PS70 SPACE DAMOCLES; PS71/033-12; PS71/085-5; PS71/085-7; PS71 ANDEEP-SYSTCO SCACE; Reads; Reference/source; Sediment type; South Atlantic Ocean; Station label; Tansei Maru; Weddell Sea; Win 3; Win 4; Win 6  (1)
  • Ciliates  (1)
  • Course; DATE/TIME; Humidity, relative; LATITUDE; LONGITUDE; meteorological data; Navigation; Navigation and meteorological acquiring during the full course of the campaign; Pacific Ocean; position; Pressure, atmospheric; Solar azimuth angle; Solar zenith angle; Speed; SV Tara; TARA_2016-2018; Tara_Pacific; TARA_PACIFIC_2016-2018; Tara Pacific Expedition; Temperature, air; Temperature, water; UMS; Underway, multiple sensors; Validation flag/comment; Wind apparent direction, reference angle, bow; Wind apparent direction, reference angle, north; Wind apparent speed; Wind direction, true; Wind speed, true  (1)
Document type
Keywords
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Years
  • 1
    Publication Date: 2024-01-06
    Description: The Tara Pacific expedition (2016-2018) sampled coral ecosystems around 32 islands in the Pacific Ocean, and sampled the surface of oceanic waters at 249 locations, resulting in the collection of nearly 58,000 samples. The expedition was designed to systematically study corals, fish, plankton, and seawater, and included the collection of samples for advanced biogeochemical, molecular, and imaging analysis. Here we provide the continuous dataset originating from navigation and meteorological instruments acquiring continuously during the full course of the campaign.
    Keywords: Course; DATE/TIME; Humidity, relative; LATITUDE; LONGITUDE; meteorological data; Navigation; Navigation and meteorological acquiring during the full course of the campaign; Pacific Ocean; position; Pressure, atmospheric; Solar azimuth angle; Solar zenith angle; Speed; SV Tara; TARA_2016-2018; Tara_Pacific; TARA_PACIFIC_2016-2018; Tara Pacific Expedition; Temperature, air; Temperature, water; UMS; Underway, multiple sensors; Validation flag/comment; Wind apparent direction, reference angle, bow; Wind apparent direction, reference angle, north; Wind apparent speed; Wind direction, true; Wind speed, true
    Type: Dataset
    Format: text/tab-separated-values, 10873547 data points
    Location Call Number Limitation Availability
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  • 2
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    PANGAEA
    In:  Supplement to: Morard, Raphael; Lejzerowicz, Franck; Darling, Kate F; Lecroq-Bennet, Beatrice; Pedersen, Mikkel Winther; Orlando, Ludovic; Pawlowski, Jan; Mulitza, Stefan; De Vargas, Colomban; Kucera, Michal (2017): Planktonic foraminifera-derived environmental DNA extracted from abyssal sediments preserves patterns of plankton macroecology. Biogeosciences, 14, 2741-2754, https://doi.org/10.5194/bg-14-2741-2017
    Publication Date: 2024-02-02
    Description: Deep-sea sediments constitute a unique archive of ocean change, fueled by a permanent rain of mineral and organic remains from the surface ocean. Until now, paleo-ecological analyses of this archive have been mostly based on information from taxa leaving fossils. In theory, environmental DNA (eDNA) in the sediment has the potential to provide information on non-fossilized taxa, allowing more comprehensive interpretations of the fossil record. Yet, the process controlling the transport and deposition of eDNA onto the sediment and the extent to which it preserves the features of past oceanic biota remains unknown. Planktonic foraminifera are the ideal taxa to allow an assessment of the eDNA signal modification during deposition because their fossils are well preserved in the sediment and their morphological taxonomy is documented by DNA barcodes. Specifically, we re-analyze foraminiferal-specific metabarcodes from 31 deep-sea sediment samples, which were shown to contain a small fraction of sequences from planktonic foraminifera. We confirm that the largest portion of the metabarcode originates from benthic bottom-dwelling foraminifera, representing the in situ community, but a small portion (〈10 %) of the metabarcodes can be unambiguously assigned to planktonic taxa. These organisms live exclusively in the surface ocean and the recovered barcodes thus represent an allochthonous component deposited with the rain of organic remains from the surface ocean. We take advantage of the planktonic foraminifera portion of the metabarcodes to establish to what extent the structure of the surface ocean biota is preserved in sedimentary eDNA. We show that planktonic foraminifera DNA is preserved in a range of marine sediment types, the composition of the recovered eDNA metabarcode is replicable and that both the similarity structure and the diversity pattern are preserved. Our results suggest that sedimentary eDNA could preserve the ecological structure of the entire pelagic community, including non-fossilized taxa, thus opening new avenues for paleoceanographic and paleoecological studies.
    Keywords: ANT-XXIV/2; Arctic Ocean; ARK-XXII/2; AWI_Paleo; BC; Box corer; Center for Marine Environmental Sciences; Cruise/expedition; Date/Time of event; Davis Strait; Elevation of event; Event label; Galathea_3_Win3; Galathea_3_Win4; Galathea_3_Win6; Galathea 3; HDMS Vaedderen; KT07-14; KT07-14_MC03; KT07-14_MC04; KT07-14_MC07; Latitude of event; Longitude of event; Maria S. Merian; MARUM; MC03; MC04; MC07; MSM09/2; MSM09/2_432-5; MSM09/2_453-7; MSM09/2_472-2; MUC; MultiCorer; Name; Number of e-ribotype; Number of genotype; Number of morphospecies; Number of sequences; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Polarstern; PS70/239-6; PS70/265-1; PS70/265-2; PS70/299-2; PS70/309-8; PS70 SPACE DAMOCLES; PS71/033-12; PS71/085-5; PS71/085-7; PS71 ANDEEP-SYSTCO SCACE; Reads; Reference/source; Sediment type; South Atlantic Ocean; Station label; Tansei Maru; Weddell Sea; Win 3; Win 4; Win 6
    Type: Dataset
    Format: text/tab-separated-values, 496 data points
    Location Call Number Limitation Availability
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  • 3
    Publication Date: 2022-05-26
    Description: Author Posting. © Inter-Research, 2009. This article is posted here by permission of Inter-Research for personal use, not for redistribution. The definitive version was published in Aquatic Microbial Ecology 57 (2009): 279-310, doi:10.3354/ame01340.
    Description: Acquisition of phototrophy is widely distributed in the eukaryotic tree of life and can involve algal endosymbiosis or plastid retention from green or red origins. Species with acquired phototrophy are important components of diversity in aquatic ecosystems, but there are major differences in host and algal taxa involved and in niches of protists with acquired phototrophy in marine and freshwater ecosystems. Organisms that carry out acquired phototrophy are usually mixotrophs, but the degree to which they depend on phototrophy is variable. Evidence suggests that ‘excess carbon’ provided by acquired phototrophy has been important in supporting major evolutionary innovations that are crucial to the current ecological roles of these protists in aquatic ecosystems. Acquired phototrophy occurs primarily among radiolaria, foraminifera, ciliates and dinoflagellates, but is most ecologically important among the first three. Acquired phototrophy in foraminifera and radiolaria is crucial to their contributions to carbonate, silicate, strontium, and carbon flux in subtropical and tropical oceans. Planktonic ciliates with algal kleptoplastids are important in marine and fresh waters, whereas ciliates with green algal endosymbionts are mostly important in freshwaters. The phototrophic ciliate Myrionecta rubra can be a major primary producer in coastal ecosystems. Our knowledge of how acquired phototrophy influences trophic dynamics and biogeochemical cycles is rudimentary; we need to go beyond traditional concepts of ‘plant’ and ‘animal’ functions to progress in our understanding of aquatic microbial ecology. This is a rich area for exploration using a combination of classical and molecular techniques, laboratory and field research, and physiological and ecosystem modeling.
    Description: F.N. and C.dV were supported by a SAD grant SYMFORAD from the Région Bretagne (France) and the BioMarKs project funded by the European ERA-net program BiodivERsA.
    Keywords: Mixotrophy ; Radiolaria ; Foraminifera ; Ciliates ; Dinoflagellates ; Kleptoplastidy ; Karyoklepty ; Endosymbiosis ; Myrionecta rubra
    Repository Name: Woods Hole Open Access Server
    Type: Article
    Format: application/pdf
    Location Call Number Limitation Availability
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