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  • 1
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    Unknown
    Planktonic foraminifera from the M124 cruise plankton multinets (Subtropical South Atlantic) (2020)
    PANGAEA
    Details
    Publication Date: 2023-12-14
    Description: Temperature appears to be the best predictor of species composition of planktonic foraminifera communities, making it possible to use their fossil assemblages to reconstruct sea surface temperature (SST) variation in the past. However, the role of other environmental factors potentially modulating the spatial and vertical distribution of planktonic foraminifera species is poorly understood. This is especially relevant for environmental factors affecting the subsurface habitat. If such factors play a role, changes in the abundance of subsurface-dwelling species may not solely reflect SST variation. In order to constrain the effect of subsurface parameters on species composition, we here characterize the vertical distribution of living planktonic foraminifera community across an E-W transect through the subtropical South Atlantic Ocean, where SST variability was small but the subsurface water mass structure changed dramatically. Four planktonic foraminifera communities could be identified across the top 700 m of the transect. Gyre and Agulhas Leakage surface faunas were predominantly composed of Globigerinoides ruber, Globigerinoides tenellus, Trilobatus sacculifer, Globoturborotalita rubescens, Globigerinella calida, Tenuitella iota and Globigerinita glutinata, and only differed in terms of relative abundances (community composition). Upwelling fauna was dominated by Neogloboquadrina pachyderma, Neogloboquadrina incompta, Globorotalia crassaformis and Globorotalia inflata. Thermocline fauna was dominated by Tenuitella fleisheri, Globorotalia truncatulinoides and Globorotalia scitula in the west, and by G. scitula in the east. The largest part of the standing stock was consistently found in the surface layer, but SST was not the main predictor of species composition, neither for the depth-integrated fauna across the stations nor at individual depth layers. Instead, we identified a pattern of vertical stacking of different parameters controlling species composition, reflecting different aspects of the pelagic habitat. Whereas productivity appears to dominate in the mixed layer (0 - 60 m), physical properties (temperature, salinity) become important at intermediate depths and in the subsurface, a complex combination of factors including oxygen concentration is required to explain the assemblage composition. These results indicate that the seemingly straightforward relationship between assemblage composition and SST in sedimentary assemblages reflects vertically and seasonally integrated processes that are only indirectly linked to SST. It also implies that fossil assemblages of planktonic foraminifera should also contain a signature of subsurface processes, which could be used for paleoceanographic reconstructions. The data consists of concentration values (individues.m-3) of planktonic foraminifera identified to specific level. The methodology was made on counting census of 〉 100 µm specimens. The first and second data sheets comprise the total (living and dead) analyzed foraminifera. The third and the fourth data sheets do not comprise dead specimens, the living fauna was separated in adults (third sheet) and pre-adults (fourth sheet) specimens. Pre-adults comprise juveniles and neanic specimens.
    Keywords: Center for Marine Environmental Sciences; ecology; MARUM; Micropaleontology; Planktonic foraminifera; plankton net; South Atlantic; species composition; vertical distribution
    Type: Dataset
    Format: application/zip, 4 datasets
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  • 2
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    Planktonic foraminifera shell flux data from sediment trap CB-3 (2019)
    PANGAEA
    Details
    Publication Date: 2023-12-14
    Description: Planktonic foraminifera shell flux data (1990/1991) from Cap Blanc time series. These data extend the taxonomic coverage of previous work (Zaric, 2005) to all species. Overlapping data have been averaged.
    Keywords: Beella digitata, flux; CB3_trap; Center for Marine Environmental Sciences; Counting 〉150 µm fraction; DATE/TIME; Dentigloborotalia anfracta, flux; Globigerina bulloides, flux; Globigerina falconensis, flux; Globigerinella calida, flux; Globigerinella siphonifera, flux; Globigerinita glutinata, flux; Globigerinoides ruber, flux; Globigerinoides ruber white, flux; Globigerinoides tenellus, flux; Globoconella inflata, flux; Globoquadrina conglomerata, flux; Globorotalia crassaformis, flux; Globorotalia hirsuta, flux; Globorotalia menardii, flux; Globorotalia scitula, flux; Globorotalia truncatulinoides, flux; Globorotalia tumida, flux; Globoturborotalita rubescens, flux; Hastigerina pelagica, flux; M12/1; MARUM; Meteor (1986); Neogloboquadrina dutertrei, flux; Neogloboquadrina incompta, flux; Orbulina universa, flux; Planktonic foraminifera; Pulleniatina obliquiloculata, flux; seasonality; sediment trap; shell flux; Tenuitella fleisheri, flux; Trap; TRAP; Trilobatus sacculifer, flux; Turborotalita humilis, flux
    Type: Dataset
    Format: text/tab-separated-values, 513 data points
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  • 3
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    Planktonic foraminifera shell size from sediment traps Cape Blanc-3 and Cape Blanc-18 (2021)
    PANGAEA
    Details
    Publication Date: 2023-12-14
    Description: We present the first analysis of the relative contribution of variability in shell flux, shell size, and calcification intensity (weight/size) in individual species to the total calcite flux by the planktonic foraminifera community on intra-annual (seasonal) and interannual timescales. We investigated the export flux of planktonic foraminifera in two one-year sediment trap time series from the Northeastern Atlantic Ocean and placed the observed variability of shell flux, shell size, and calcification intensity of each species in the context of the resulting calcite flux. For this issue, we selected 1990-1991 (Cape Blanc-3) and 2007-2008 (Cape Blanc-18) time series from the Cape Blanc upwelling area. Each of these deployments covered an entire year continuously, with an average sampling resolution of ~20 days. Here, we provide the data concerning the species individual size during the studied time series, which were picked from size fractions 〉 150 µm.
    Keywords: Aperture size; Area; Cape Blanc; CB18; CB18_trap; CB3_trap; Center for Marine Environmental Sciences; DATE/TIME; DEPTH, water; Diameter, maximum; Diameter, minimum; Duration, number of days; Elevation of event; Event label; Latitude of event; Longitude of event; M12/1; Maria S. Merian; MARUM; Meteor (1986); MOOR; Mooring; MSM04/4b; northeaster; Northeastern Atlantic; Perimeter; Planktonic foraminifera; Sample code/label; sediment trap; Shell size; Species; time-series; Trap; TRAP
    Type: Dataset
    Format: text/tab-separated-values, 187800 data points
    Location Call Number Expected Availability
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  • 4
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    Planktonic foraminifera counts and shell weight from sediment traps Cape Blanc-3 and Cape Blanc-18 (2021)
    PANGAEA
    Details
    Publication Date: 2023-12-14
    Description: We present the first analysis of the relative contribution of variability in shell flux, shell size, and calcification intensity (weight/size) in individual species to the total calcite flux by the planktonic foraminifera community on intra-annual (seasonal) and interannual timescales. We investigated the export flux of planktonic foraminifera in two one-year sediment trap time series from the Northeastern Atlantic Ocean and placed the observed variability of shell flux, shell size, and calcification intensity of each species in the context of the resulting calcite flux. For this issue, we selected 1990-1991 (Cape Blanc-3) and 2007-2008 (Cape Blanc-18) time series from the Cape Blanc upwelling area. Each of these deployments covered an entire year continuously, with an average sampling resolution of ~20 days. Here, we provide the data concerning the species counts and shell weight, picked from size fractions 〉 150 µm, captured during the studied time series. Shell mass error was calculated as the standard deviation of the measurements divided by the square root of number of measurements, divided by the number of the weighed specimens.
    Keywords: Aperture size; Beella digitata; Beella digitata, shell, weight; Beella digitata, shell, weight, standard deviation; Calcium carbonate, flux; Cape Blanc; CB18; CB18_trap; CB3_trap; Center for Marine Environmental Sciences; Date/time end; Date/time start; Dentigloborotalia anfracta; Dentigloborotalia anfracta, shell, weight; Dentigloborotalia anfracta, shell, weight, standard deviation; DEPTH, water; Duration, number of days; Elevation of event; Event label; fluxes; Foraminifera, planktic, flux; Globigerina bulloides; Globigerina bulloides, shell, weight; Globigerina bulloides, shell, weight, standard deviation; Globigerina falconensis; Globigerina falconensis, shell, weight; Globigerina falconensis, shell, weight, standard deviation; Globigerinella calida; Globigerinella calida, shell, weight; Globigerinella calida, shell, weight, standard deviation; Globigerinella siphonifera; Globigerinella siphonifera, shell, weight; Globigerinella siphonifera, shell, weight, standard deviation; Globigerinita glutinata; Globigerinita glutinata, shell, weight; Globigerinita glutinata, shell, weight, standard deviation; Globigerinoides conglobatus; Globigerinoides conglobatus, shell, weight; Globigerinoides elongatus; Globigerinoides elongatus, shell, weight; Globigerinoides elongatus, shell, weight, standard deviation; Globigerinoides ruber albus; Globigerinoides ruber albus, shell, weight; Globigerinoides ruber albus, shell, weight, standard deviation; Globigerinoides ruber ruber; Globigerinoides ruber ruber, shell, weight; Globigerinoides ruber ruber, shell, weight, standard deviation; Globigerinoides tenellus; Globigerinoides tenellus, shell, weight; Globigerinoides tenellus, shell, weight, standard deviation; Globorotalia crassaformis; Globorotalia crassaformis, shell, weight; Globorotalia crassaformis, shell, weight, standard deviation; Globorotalia hirsuta; Globorotalia hirsuta, shell, weight; Globorotalia hirsuta, shell, weight, standard deviation; Globorotalia inflata; Globorotalia inflata, shell, weight; Globorotalia inflata, shell, weight, standard deviation; Globorotalia menardii; Globorotalia menardii, shell, weight; Globorotalia menardii, shell, weight, standard deviation; Globorotalia scitula; Globorotalia scitula, shell, weight; Globorotalia scitula, shell, weight, standard deviation; Globorotalia truncatulinoides; Globorotalia truncatulinoides, shell, weight; Globorotalia truncatulinoides, shell, weight, standard deviation; Globorotalia tumida; Globorotalia tumida, shell, weight; Globorotalia tumida, shell, weight, standard deviation; Globorotalia ungulata; Globorotalia ungulata, shell, weight; Globorotalia ungulata, shell, weight, standard deviation; Hastigerina pelagica; Hastigerina pelagica, shell, weight; Hastigerina pelagica, shell, weight, standard deviation; Latitude of event; Longitude of event; M12/1; Maria S. Merian; MARUM; Meteor (1986); MOOR; Mooring; MSM04/4b; Neogloboquadrina dutertrei; Neogloboquadrina dutertrei, shell, weight; Neogloboquadrina dutertrei, shell, weight, standard deviation; Neogloboquadrina incompta; Neogloboquadrina incompta, shell, weight; Neogloboquadrina incompta, shell, weight, standard deviaton; northwest Africa; Orbulina universa; Orbulina universa, shell, weight; Orbulina universa, shell, weight, standard deviation; Planktonic foraminifera; Pteropoda, flux; Pulleniatina obliquiloculata; Pulleniatina obliquiloculata, shell, weight; Pulleniatina obliquiloculata, shell, weight, standard deviation; Sample code/label; sediment trap; shell weight; Sphaeroidinella dehiscens; Sphaeroidinella dehiscens, shell, weight; Sphaeroidinella dehiscens, shell, weight, standard deviation; Split; Tenuitella fleisheri; Tenuitella fleisheri, shell, weight; Tenuitella fleisheri, shell, weight, standard deviation; time-series; Trap; TRAP; Trilobatus sacculifer; Trilobatus sacculifer, shell, weight; Trilobatus sacculifer, shell, weight, standard deviation; Turborotalita humilis; Turborotalita humilis, shell, weight; Turborotalita humilis, shell, weight, standard deviation; Turborotalita quinqueloba; Turborotalita quinqueloba, shell, weight; Turborotalita quinqueloba, shell, weight, standard deviation
    Type: Dataset
    Format: text/tab-separated-values, 2757 data points
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  • 5
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    Total living (with cytoplasm) planktonic foraminifera from the M124 cruise plankton multinets, Subtropical South Atlantic (2020)
    PANGAEA
    Details
    Publication Date: 2024-02-02
    Keywords: Beella digitata; Berggrenia pumilio; Candeina nitida; Cast number; Center for Marine Environmental Sciences; Counting 〉100 µm fraction; Dentigloborotalia anfracta; Depth, bottom/max; Depth, top/min; DEPTH, water; ecology; Event label; Foraminifera, planktic indeterminata; Foraminifera, planktic living; Globigerina bulloides; Globigerina falconensis; Globigerinella calida; Globigerinella radians; Globigerinella siphonifera; Globigerinita glutinata; Globigerinita uvula; Globigerinoides conglobatus; Globigerinoides elongatus; Globigerinoides ruber pink; Globigerinoides ruber white; Globoquadrina conglomerata; Globorotalia crassaformis; Globorotalia hirsuta; Globorotalia inflata; Globorotalia menardii; Globorotalia scitula; Globorotalia theyeri; Globorotalia truncatulinoides dextral; Globorotalia truncatulinoides sinistral; Globorotalia tumida; Globorotalia ungulata; Globorotaloides hexagonus; Globoturborotalita rubescens; Globoturborotalita tenella; Hastigerina pelagica; LATITUDE; LONGITUDE; M124; M124_0192-1_MSN#192; M124_0193_K334; M124_0202-1_MSN#202; M124_0214-1_MSN#214; M124_0227-2_MSN#227; M124_0239-1_MSN#239; M124_0252-1_MSN#252; M124_0265-1_MSN#265; M124_0278-1_MSN#278; M124_0306-1_MSN#306; M124_0320-1_MSN#320; M124_0332-1_MSN#332; M124_0344_K349; M124_0356-1_MSN#356; M124_0370-1_MSN#370; M124_0382-1_MSN#382; M124_0394-1_MSN#394; MARUM; Meteor (1986); Micropaleontology; MSN; MSN#192; MSN#202; MSN#214; MSN#227; MSN#239; MSN#252; MSN#265; MSN#278; MSN#306; MSN#320; MSN#332; MSN#356; MSN#370; MSN#382; MSN#394; Multiple opening/closing net; Neogloboquadrina dutertrei; Neogloboquadrina incompta; Neogloboquadrina pachyderma; Orbulina universa; Planktonic foraminifera; plankton net; Pulleniatina obliquiloculata; South Atlantic; species composition; Station label; Tenuitella fleisheri; Tenuitella iota; Tenuitella parkerae; Trilobatus sacculifer; Turborotalita clarkei; Turborotalita humilis; Turborotalita quinqueloba; vertical distribution; Water volume, filtered
    Type: Dataset
    Format: text/tab-separated-values, 7599 data points
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  • 6
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    Total dead (without cytoplasm) planktonic foraminifera from the M124 cruise plankton multinets, Subtropical South Atlantic (2020)
    PANGAEA
    Details
    Publication Date: 2024-02-02
    Keywords: Beella digitata; Berggrenia pumilio; Candeina nitida; Cast number; Center for Marine Environmental Sciences; Counting 〉100 µm fraction; Dentigloborotalia anfracta; Depth, bottom/max; Depth, top/min; DEPTH, water; ecology; Event label; Foraminifera, planktic dead; Foraminifera, planktic indeterminata; Globigerina bulloides; Globigerina falconensis; Globigerinella calida; Globigerinella radians; Globigerinella siphonifera; Globigerinita glutinata; Globigerinita uvula; Globigerinoides conglobatus; Globigerinoides elongatus; Globigerinoides ruber pink; Globigerinoides ruber white; Globoquadrina conglomerata; Globorotalia crassaformis; Globorotalia hirsuta; Globorotalia inflata; Globorotalia menardii; Globorotalia scitula; Globorotalia theyeri; Globorotalia truncatulinoides dextral; Globorotalia truncatulinoides sinistral; Globorotalia tumida; Globorotalia ungulata; Globorotaloides hexagonus; Globoturborotalita rubescens; Globoturborotalita tenella; Hastigerina pelagica; LATITUDE; LONGITUDE; M124; M124_0192-1_MSN#192; M124_0193_K334; M124_0202-1_MSN#202; M124_0214-1_MSN#214; M124_0227-2_MSN#227; M124_0239-1_MSN#239; M124_0252-1_MSN#252; M124_0265-1_MSN#265; M124_0278-1_MSN#278; M124_0306-1_MSN#306; M124_0320-1_MSN#320; M124_0332-1_MSN#332; M124_0344_K349; M124_0356-1_MSN#356; M124_0370-1_MSN#370; M124_0382-1_MSN#382; M124_0394-1_MSN#394; MARUM; Meteor (1986); Micropaleontology; MSN; MSN#192; MSN#202; MSN#214; MSN#227; MSN#239; MSN#252; MSN#265; MSN#278; MSN#306; MSN#320; MSN#332; MSN#356; MSN#370; MSN#382; MSN#394; Multiple opening/closing net; Neogloboquadrina dutertrei; Neogloboquadrina incompta; Neogloboquadrina pachyderma; Orbulina universa; Planktonic foraminifera; plankton net; Pulleniatina obliquiloculata; South Atlantic; species composition; Station label; Tenuitella fleisheri; Tenuitella iota; Tenuitella parkerae; Trilobatus sacculifer; Turborotalita clarkei; Turborotalita humilis; Turborotalita quinqueloba; vertical distribution; Water volume, filtered
    Type: Dataset
    Format: text/tab-separated-values, 7599 data points
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  • 7
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    Planktonic foraminifera shell flux data from sediment trap IRM-1 (2019)
    PANGAEA
    Details
    Publication Date: 2024-02-17
    Description: Planktonic foraminifera shell flux data from sediment trap IRM-1. These data extend the taxonomic coverage of previous work (Jonkers et al., 2020, 2013).
    Keywords: Center for Marine Environmental Sciences; Counting 〉150 µm fraction; DATE/TIME; Globigerina bulloides, flux; Globigerinita glutinata, flux; Globoconella inflata, flux; IRM_1; MARUM; Neogloboquadrina incompta, flux; Neogloboquadrina pachyderma, flux; North Atlantic; Orbulina universa, flux; Planktonic foraminifera; sediment trap; shell flux; Trap, sediment; TRAPS; Turborotalita quinqueloba, flux
    Type: Dataset
    Format: text/tab-separated-values, 140 data points
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  • 8
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    Living adults planktonic foraminifera from the M124 cruise plankton multinets, Subtropical South Atlantic (2020)
    PANGAEA
    Details
    Publication Date: 2024-02-02
    Keywords: Beella digitata; Berggrenia pumilio; Candeina nitida; Cast number; Center for Marine Environmental Sciences; Counting 〉100 µm fraction; Dentigloborotalia anfracta; Depth, bottom/max; Depth, top/min; DEPTH, water; ecology; Event label; Foraminifera, planktic indeterminata; Foraminifera, planktic living; Globigerina bulloides; Globigerina falconensis; Globigerinella calida; Globigerinella radians; Globigerinella siphonifera; Globigerinita glutinata; Globigerinita uvula; Globigerinoides conglobatus; Globigerinoides elongatus; Globigerinoides ruber pink; Globigerinoides ruber white; Globoquadrina conglomerata; Globorotalia crassaformis; Globorotalia hirsuta; Globorotalia inflata; Globorotalia menardii; Globorotalia scitula; Globorotalia theyeri; Globorotalia truncatulinoides dextral; Globorotalia truncatulinoides sinistral; Globorotalia tumida; Globorotalia ungulata; Globorotaloides hexagonus; Globoturborotalita rubescens; Globoturborotalita tenella; Hastigerina pelagica; LATITUDE; LONGITUDE; M124; M124_0192-1_MSN#192; M124_0193_K334; M124_0202-1_MSN#202; M124_0214-1_MSN#214; M124_0227-2_MSN#227; M124_0239-1_MSN#239; M124_0252-1_MSN#252; M124_0265-1_MSN#265; M124_0278-1_MSN#278; M124_0306-1_MSN#306; M124_0320-1_MSN#320; M124_0332-1_MSN#332; M124_0344_K349; M124_0356-1_MSN#356; M124_0370-1_MSN#370; M124_0382-1_MSN#382; M124_0394-1_MSN#394; MARUM; Meteor (1986); Micropaleontology; MSN; MSN#192; MSN#202; MSN#214; MSN#227; MSN#239; MSN#252; MSN#265; MSN#278; MSN#306; MSN#320; MSN#332; MSN#356; MSN#370; MSN#382; MSN#394; Multiple opening/closing net; Neogloboquadrina dutertrei; Neogloboquadrina incompta; Neogloboquadrina pachyderma; Orbulina universa; Planktonic foraminifera; plankton net; Pulleniatina obliquiloculata; South Atlantic; species composition; Station label; Tenuitella fleisheri; Tenuitella iota; Tenuitella parkerae; Trilobatus sacculifer; Turborotalita clarkei; Turborotalita humilis; Turborotalita quinqueloba; vertical distribution; Water volume, filtered
    Type: Dataset
    Format: text/tab-separated-values, 7599 data points
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  • 9
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    Living pre-adults planktonic foraminifera from the M124 cruise plankton multinets, Subtropical South Atlantic (2020)
    PANGAEA
    Details
    Publication Date: 2024-02-02
    Keywords: Beella digitata; Berggrenia pumilio; Candeina nitida; Cast number; Center for Marine Environmental Sciences; Counting 〉100 µm fraction; Dentigloborotalia anfracta; Depth, bottom/max; Depth, top/min; DEPTH, water; ecology; Event label; Foraminifera, planktic indeterminata; Foraminifera, planktic living; Globigerina bulloides; Globigerina falconensis; Globigerinella calida; Globigerinella radians; Globigerinella siphonifera; Globigerinita glutinata; Globigerinita uvula; Globigerinoides conglobatus; Globigerinoides elongatus; Globigerinoides ruber pink; Globigerinoides ruber white; Globoquadrina conglomerata; Globorotalia crassaformis; Globorotalia hirsuta; Globorotalia inflata; Globorotalia menardii; Globorotalia scitula; Globorotalia theyeri; Globorotalia truncatulinoides dextral; Globorotalia truncatulinoides sinistral; Globorotalia tumida; Globorotalia ungulata; Globorotaloides hexagonus; Globoturborotalita rubescens; Globoturborotalita tenella; Hastigerina pelagica; LATITUDE; LONGITUDE; M124; M124_0192-1_MSN#192; M124_0193_K334; M124_0202-1_MSN#202; M124_0214-1_MSN#214; M124_0227-2_MSN#227; M124_0239-1_MSN#239; M124_0252-1_MSN#252; M124_0265-1_MSN#265; M124_0278-1_MSN#278; M124_0306-1_MSN#306; M124_0320-1_MSN#320; M124_0332-1_MSN#332; M124_0344_K349; M124_0356-1_MSN#356; M124_0370-1_MSN#370; M124_0382-1_MSN#382; M124_0394-1_MSN#394; MARUM; Meteor (1986); Micropaleontology; MSN; MSN#192; MSN#202; MSN#214; MSN#227; MSN#239; MSN#252; MSN#265; MSN#278; MSN#306; MSN#320; MSN#332; MSN#356; MSN#370; MSN#382; MSN#394; Multiple opening/closing net; Neogloboquadrina dutertrei; Neogloboquadrina incompta; Neogloboquadrina pachyderma; Orbulina universa; Planktonic foraminifera; plankton net; Pulleniatina obliquiloculata; South Atlantic; species composition; Station label; Tenuitella fleisheri; Tenuitella iota; Tenuitella parkerae; Trilobatus sacculifer; Turborotalita clarkei; Turborotalita humilis; Turborotalita quinqueloba; vertical distribution; Water volume, filtered
    Type: Dataset
    Format: text/tab-separated-values, 7599 data points
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  • 10
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    Distribution of planktonic foraminifera in the subtropical South Atlantic: depth hierarchy of controlling factors (2020)
    Copernicus
    Details
    Publication Date: 2020-08-28
    Description: Temperature appears to be the best predictor of species composition of planktonic foraminifera communities, making it possible to use their fossil assemblages to reconstruct sea surface temperature (SST) variation in the past. However, the role of other environmental factors potentially modulating the spatial and vertical distribution of planktonic foraminifera species is poorly understood. This is especially relevant for environmental factors affecting the subsurface habitat. If such factors play a role, changes in the abundance of subsurface-dwelling species may not solely reflect SST variation. In order to constrain the effect of subsurface parameters on species composition, we here characterize the vertical distribution of living planktonic foraminifera community across an east–west transect through the subtropical South Atlantic Ocean, where SST variability was small, but the subsurface water mass structure changed dramatically. Four planktonic foraminifera communities could be identified across the top 700 m of the transect. Gyre and Agulhas Leakage surface faunas were predominantly composed of Globigerinoides ruber, Globigerinoides tenellus, Trilobatus sacculifer, Globoturborotalita rubescens, Globigerinella calida, Tenuitella iota, and Globigerinita glutinata, and these only differed in terms of relative abundances (community composition). Upwelling fauna was dominated by Neogloboquadrina pachyderma, Neogloboquadrina incompta, Globorotalia crassaformis, and Globorotalia inflata. Thermocline fauna was dominated by Tenuitella fleisheri, Globorotalia truncatulinoides, and Globorotalia scitula in the west and by G. scitula only in the east. The largest part of the standing stock was consistently found in the surface layer, but SST was not the main predictor of species composition either for the depth-integrated fauna across the stations or at individual depth layers. Instead, we identified a pattern of vertical stacking of different parameters controlling species composition, reflecting different aspects of the pelagic habitat. Whereas productivity appears to dominate in the mixed layer (0–60 m), physical properties (temperature, salinity) become important at intermediate depths and in the subsurface, a complex combination of factors including oxygen concentration is required to explain the assemblage composition. These results indicate that the seemingly straightforward relationship between assemblage composition and SST in sedimentary assemblages reflects vertically and seasonally integrated processes that are only indirectly linked to SST. It also implies that fossil assemblages of planktonic foraminifera should also contain a signature of subsurface processes, which could be used for paleoceanographic reconstructions.
    Print ISSN: 1726-4170
    Electronic ISSN: 1726-4189
    Topics: Biology , Geosciences
    Published by Copernicus on behalf of European Geosciences Union.
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