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  • 1
    facet.materialart.
    Unknown
    Pigment concentration database of the sea surface layer collected during the Tara Pacific Expedition 2016-2018 (2022)
    PANGAEA
    Details
    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 a pigment concentrations database originating from 545 stations sampled during the expedition. Pigment were measured by High Performance Liquid Chromatography. This pigment database provides high quality measurements of the major taxonomic pigments including chlorophylls a, b and c, peridinin, 19'-butanoyloxyfucoxanthin, fucoxanthin, neoxanthin, prasinoxanthin, violaxanthin, 19'-hexanoyloxyfucoxanthin, diadinoxanthin, antheraxanthin, alloxanthin, diatoxanthin, zeaxanthin, lutein, divinyl chlorophyll b, chlorophyll b, divinyl chlorophyll a, chlorophyll a, carotene and bacteriochlorophyll a, which can be used to estimate phytoplankton community composition.
    Keywords: 19'-Hexanoyloxy-4-ketofucoxanthin; 19-Butanoyloxyfucoxanthin; 19-Hexanoyloxyfucoxanthin; Alloxanthin; Antheraxanthin; Bacteriochlorophyll a; Carotene; Chlorophyll a; Chlorophyll a + divinyl chlorophyll a + chlorophyllide a; Chlorophyll b; Chlorophyll b + divinyl chlorophyll b; Chlorophyll c1+c2; Chlorophyll c3; Chlorophyllide a; Comment; Depth, bottom/max; Depth, top/min; DEPTH, water; Diadinoxanthin; Diatoxanthin; Divinyl chlorophyll a; DOLPHIN-CARBOY; Environmental feature; Event label; Fondation Tara Expeditions; FondTara; Fucoxanthin; HANDHELD-BUCKET; HANDHELD-NISKIN; High Performance Liquid Chromatography (HPLC); Lutein; Myxoxanthophyll; Neoxanthin; OA000-I00-S00; OA000-I01-S02; OA000-I04-S01; OA000-I04-S02; OA000-I04-S03; OA000-I04-S04; OA000-I05-S01; OA000-I05-S02; OA000-I05-S03; OA000-I06-S01; OA000-I06-S02; OA000-I06-S03; OA000-I07-S01; OA000-I07-S02; OA000-I07-S03; OA000-I08-S01; OA000-I08-S02; OA000-I08-S03; OA000-I09-S01; OA000-I09-S02; OA000-I09-S03; OA000-I10-S01; OA000-I10-S02; OA000-I10-S03; OA000-I12-S01; OA000-I12-S02; OA000-I12-S03; OA000-I13-S01; OA000-I13-S02; OA000-I13-S03; OA000-I14-S01; OA000-I14-S02; OA000-I14-S03; OA000-I15-S01; OA000-I15-S02; OA000-I15-S03; OA000-I16-S01; OA000-I16-S02; OA000-I16-S03; OA000-I17-S01; OA000-I17-S02; OA000-I17-S03; OA000-I18-S01; OA000-I18-S02; OA000-I18-S03; OA000-I19-S01; OA000-I19-S02; OA000-I19-S03; OA000-I19-S04; OA000-I20-S01; OA000-I20-S02; OA000-I20-S03; OA000-I21-S01; OA000-I21-S02; OA000-I21-S03; OA000-I22-S01; OA000-I22-S02; OA000-I22-S03; OA000-I23-S01; OA000-I23-S02; OA000-I23-S03; OA000-I24-S01; OA000-I24-S02; OA000-I24-S03; OA000-I25-S01; OA000-I25-S02; OA000-I25-S03; OA000-I25-S04; OA000-I25-S05; OA000-I26-S01; OA000-I26-S02; OA000-I26-S03; OA000-I27-S01; OA000-I27-S02; OA000-I28-S01; OA000-I28-S02; OA000-I28-S03; OA000-I29-S01; OA000-I29-S02; OA000-I29-S03; OA000-I30-S01; OA000-I30-S02; OA000-I30-S03; OA000-I31-S01; OA000-I31-S02; OA000-I31-S03; OA000-I32-S01; OA000-I32-S02; OA000-I32-S03; OA000-I32-S04; OA000-TS5-S11; OA000-TS5-S12; OA000-TS5-S21; OA000-TS5-S22; OA000-TS5-S31; OA000-TS5-S41; OA000-TS5-S51; OA000-TS6-S11; OA000-TS6-S12; OA000-TS6-S21; OA000-TS6-S22; OA000-TS7-P01; OA000-TS7-P03; OA002-I00-S00; OA003-I00-S00; OA004-I00-S00; OA005-I00-S00; OA006-I00-S00; OA007-I00-S00; OA008-I00-S00; OA009-I00-S00; OA010-I00-S00; OA011-I00-S00; OA012-I00-S00; OA013-I00-S00; OA014-I00-S00; OA015-I00-S00; OA016-I00-S00; OA017-I00-S00; OA018-I00-S00; OA019-I00-S00; OA020-I00-S00; OA021-I00-S00; OA022-I00-S00; OA023-I00-S00; OA024-I00-S00; OA025-I00-S00; OA026-I00-S00; OA027-I00-S00; OA028-I00-S00; OA029-I03-S00; OA030-I03-S00; OA031-I00-S00; OA032-I00-S00; OA033-I00-S00; OA034-I00-S00; OA035-I00-S00; OA036-I00-S00; OA037-I00-S00; OA038-I00-S00; OA039-I00-S00; OA040-I00-S00; OA041-I04-S00; OA042-I04-S00; OA043-I04-S00; OA044-I04-S00; OA045-I00-S00; OA046-I00-S00; OA047-I00-S00; OA048-I05-S00; OA049-I05-S00; OA050-I05-S00; OA051-I00-S00; OA052-I00-S00; OA053-I06-S00; OA054-I06-S00; OA055-I06-S00; OA056-I00-S00; OA057-I00-S00; OA058-I00-S00; OA059-I07-S00; OA060-I07-S00; OA061-I07-S00; OA062-I00-S00; OA063-I08-S00; OA064-I08-S00; OA065-I00-S00; OA066-I09-S00; OA067-I09-S00; OA068-I10-S00; OA069-I10-S00; OA070-I10-S00; OA071-I10-S00; OA072-I11-S00; OA073-I11-S00; OA074-I11-S00; OA075-I12-S00; OA076-I12-S00; OA077-I12-S00; OA078-I00-S00; OA079-I00-S00; OA080-I13-S00; OA081-I13-S00; OA082-I13-S00; OA083-I13-S00; OA084-I00-S00; OA085-I00-S00; OA086-I00-S00; OA087-I00-S00; OA088-I00-S00; OA089-I14-S00; OA090-I14-S00; OA091-I14-S00; OA092-I15-S00; OA093-I15-S00; OA094-I00-S00; OA095-I16-S00; OA096-I00-S00; OA097-I00-S00; OA098-I00-S00; OA099-I00-S00; OA100-I00-S00; OA101-I00-S00; OA102-I00-S00; OA103-I00-S00; OA104-I00-S00; OA105-I00-S00; OA106-I00-S00; OA107-I00-S00; OA108-I00-S00; OA109-I00-S00; OA110-I00-S00; OA111-I00-S00; OA112-I00-S00; OA113-I00-S00; OA114-I00-S00; OA115-I00-S00; OA116-I00-S00; OA117-I00-S00; OA118-I00-S00; OA119-I00-S00; OA121-I00-S00; OA122-I00-S00; OA123-I00-S00; OA124-I00-S00; OA125-I00-S00; OA126-I00-S00; OA127-I18-S00; OA128-I18-S00; OA129-I18-S00; OA130-I18-S00; OA131-I00-S00; OA132-I00-S00; OA133-I00-S00; OA134-I00-S00; OA135-I00-S00; OA136-I00-S00; OA137-I00-S00; OA138-I00-S00; OA139-I00-S00; OA140-I19-S00; OA141-I19-S00; OA142-I19-S00; OA143-I19-S00; OA144-I00-S00; OA145-I20-S00; OA146-I20-S00; OA147-I00-S00; OA148-I21-S00; OA149-I21-S00; OA150-I00-S00; OA151-I00-S00; OA152-I00-S00; OA153-I00-S00; OA154-I00-S00; OA155-I22-S00; OA156-I23-S00; OA157-I23-S00; OA158-I23-S00; OA159-I23-S00; OA160-I24-S00; OA161-I24-S00; OA162-I24-S00; OA164-I00-S00; OA165-I00-S00; OA166-I25-S00; OA167-I26-S00; OA168-I26-S00; OA169-I00-S00; OA170-I27-S00; OA171-I27-S00; OA172-I28-S00; OA173-I00-S00; OA174-I00-S00; OA175-I00-S00; OA176-I00-S00; OA177-I00-S00; OA178-I00-S00; OA179-I00-S00; OA180-I00-S00; OA181-I00-S00; OA182-I00-S00; OA183-I00-S00; OA184-I00-S00; OA185-I00-S00; OA186-I00-S00; OA187-I00-S00; OA188-I00-S00; OA189-I00-S00; OA190-I29-S00; OA191-I29-S00; OA192-I00-S00; OA193-I00-S00; OA194-I00-S00; OA195-I00-S00; OA196-I00-S00; OA197-I00-S00; OA198-I00-S00; OA199-I00-S00; OA202-I00-S00; OA203-I00-S00; OA204-I00-S00; OA205-I00-S00; OA206-I00-S00; OA207-I00-S00; OA208-I00-S00; OA209-I00-S00; OA210-I00-S00; OA211-I00-S00; OA212-I00-S00; OA213-I00-S00; OA214-I00-S00; OA216-I30-S00; OA217-I00-S00; OA218-I00-S00; OA220-I31-S00; OA221-I31-S00; OA222-I00-S00; OA223-I00-S00; OA224-I00-S00; OA225-I00-S00; OA226-I00-S00; OA227-I00-S00; OA228-I00-S00; OA229-I00-S00; OA230-I32-S00; OA232-I32-S00; OA233-I00-S00; OA234-I00-S00; OA235-I00-S00; OA236-I00-S00; OA237-I00-S00; OA238-I00-S00; OA239-I00-S00; OA240-I00-S00; OA241-I00-S00; OA242-I00-S00; OA243-I00-S00; OA244-I00-S00; OA245-I00-S00; OA246-I00-S00; OA247-I00-S00; OA249-I00-S00; Pacific; Peridinin; Phaeophorbide a; Phaeophytin a; Phytoplankton; pigments; Prasinoxanthin; Quality assurance; Quality code; Sample code/label; Sample comment; Sample ID; SCUBA-3X10; SCUBA-PUMP; SV Tara; TARA_20160530T1315Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160531T1315Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160601T0804Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160602T0834Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160604T0948Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160606T1034Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160607T1623Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160608T1203Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160609T1040Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160610T1138Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160611T1145Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160613T1333Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160614T1233Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160615T1139Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160616T1205Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160617T1118Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160618T1222Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160619T1845Z_D_O-SRF_HANDHELD-BUCKET; TARA_20160620T1223Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160621T1258Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160622T1304Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160623T1254Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160624T1304Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160625T1339Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160626T1347Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160627T1249Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160706T1359Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160712T1528Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160718T1408Z_D_C-CSW-C010_SCUBA-PUMP; TARA_20160816T1423Z_D_I-SRF_DOLPHIN-CARBOY; TARA_20160817T1420Z_D_I-SRF_DOLPHIN-CARBOY; TARA_20160818T1624Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160819T1423Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160820T1418Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160822T1415Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160823T1425Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160824T1457Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160825T1432Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160827T1445Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160828T1438Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160829T1419Z_D_O-SRF_DOLPHIN-CARBOY; TARA_20160830T1322Z_D_I-SRF_DOLPHIN-CARBOY; TARA_20160831T0157Z_N_I-SRF_DOLPHIN-CARBOY; TARA_20160831T1333Z_D_I-SRF_DOLPHIN-CARBOY; TARA_20160903T2124Z_D_S-SRF_ZODIAC-PUMP;
    Type: Dataset
    Format: text/tab-separated-values, 34819 data points
    Location Call Number Limitation Availability
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    DATA PANGAEA
  • 2
    facet.materialart.
    Unknown
    Deep maxima of phytoplankton biomass, primary production and bacterial production in the Mediterranean Sea (2021)
    Copernicus Publications (EGU)
    Details
    Publication Date: 2024-02-07
    Description: The deep chlorophyll maximum (DCM) is a ubiquitous feature of phytoplankton vertical distribution in stratified waters that is relevant to our understanding of the mechanisms that underpin the variability in photoautotroph ecophysiology across environmental gradients and has implications for remote sensing of aquatic productivity. During the PEACETIME (Process studies at the air-sea interface after dust deposition in the Mediterranean Sea) cruise, carried out from 10 May to 11 June 2017, we obtained 23 concurrent vertical profiles of phytoplankton chlorophyll a, carbon biomass and primary production, as well as heterotrophic prokaryotic production, in the western and central Mediterranean basins. Our main aims were to quantify the relative role of photoacclimation and enhanced growth as underlying mechanisms of the DCM and to assess the trophic coupling between phytoplankton and heterotrophic prokaryotic production. We found that the DCM coincided with a maximum in both the biomass and primary production but not in the growth rate of phytoplankton, which averaged 0.3 d−1 and was relatively constant across the euphotic layer. Photoacclimation explained most of the increased chlorophyll a at the DCM, as the ratio of carbon to chlorophyll a (C:Chl a) decreased from ca. 90–100 (g:g) at the surface to 20–30 at the base of the euphotic layer, while phytoplankton carbon biomass increased from ca. 6 mg C m−3 at the surface to 10–15 mg C m−3 at the DCM. As a result of photoacclimation, there was an uncoupling between chlorophyll a-specific and carbon-specific productivity across the euphotic layer. The ratio of fucoxanthin to total chlorophyll a increased markedly with depth, suggesting an increased contribution of diatoms at the DCM. The increased biomass and carbon fixation at the base of the euphotic zone was associated with enhanced rates of heterotrophic prokaryotic activity, which also showed a surface peak linked with warmer temperatures. Considering the phytoplankton biomass and turnover rates measured at the DCM, nutrient diffusive fluxes across the nutricline were able to supply only a minor fraction of the photoautotroph nitrogen and phosphorus requirements. Thus the deep maxima in biomass and primary production were not fuelled by new nutrients but likely resulted from cell sinking from the upper layers in combination with the high photosynthetic efficiency of a diatom-rich, low-light acclimated community largely sustained by regenerated nutrients. Further studies with increased temporal and spatial resolution will be required to ascertain if the peaks of deep primary production associated with the DCM persist across the western and central Mediterranean Sea throughout the stratification season.
    Type: Article , PeerReviewed , info:eu-repo/semantics/article
    Format: text
    Format: text
    Location Call Number Limitation Availability
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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