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Harbers, Almuth; Schönfeld, Joachim; Rüggeberg, Andres; Pfannkuche, Olaf (2008): Planktonic foraminiferal abundance and flux in the Porcupine Seabight, Northeast Atlantic [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.710798

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Abstract:
Modern planktonic foraminifera collected with a sediment trap and subfossil assemblages from surface sediments from Galway Mound in the Porcupine Seabight off southwestern Ireland, northeastern Atlantic, were studied to show recent assemblage variations. The sediment trap operated from April to August 2004 and covers the spring bloom and early summer conditions with sampling intervals of 8 days. Eleven different species were recorded. Glorotalia hirsuta, Turborotalita quinqueloba and Globigerinita glutinata appeared predominately in spring. Neogloboquadrina incompta, Globigerina bulloides and Globorotalia inflata were abundant in spring and summer. The highest foraminiferal tests flux occured in June. The faunal composition was similar to subfossil assemblages from surface sediments, but the species proportions were different. This was mainly affected by the subtropical G. hirsuta, which was frequent in 2004 and rare in surface sediment samples and in earlier plankton collections from the southern Porcupine Seabight that were performed during the 1990s. The weight of deposited foraminifera is mainly influenced by spring bloom as indicated by sea-surface chlorophyll-a data. The top three-ranked species, G. hirsuta, N. incompta and G. bulloides contributed 87 % to the foraminiferal carbonate flux at Galway Mound. Foraminiferal carbonate and shell flux as well as the shell size revealed variations, which are related to lunar periodicity. The data infer a lunar pacing of reproduction for the main species as well as for G. glutinata and G. inflata, which was not recorded before.
Related to:
Harbers, Almuth; Schönfeld, Joachim; Rüggeberg, Andres; Pfannkuche, Olaf (2010): Short term dynamics of planktonic foraminiferal sedimentation in the Porcupine Seabight. Micropaleontology, 56(3-4), 259-274
Coverage:
Median Latitude: 51.453548 * Median Longitude: -11.753286 * South-bound Latitude: 51.450667 * West-bound Longitude: -11.753800 * North-bound Latitude: 51.454700 * East-bound Longitude: -11.752000
Date/Time Start: 2004-06-05T22:49:00 * Date/Time End: 2008-07-31T00:00:00
Event(s):
GeoB9205-1 (M61/3_552) * Latitude: 51.450667 * Longitude: -11.752000 * Date/Time: 2004-06-05T22:49:00 * Elevation: -810.2 m * Location: Belgica Mound Province, Galway Mound * Campaign: M61/3 * Basis: Meteor (1986) * Method/Device: Giant box corer (GKG) * Comment: corals at the surface
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
7 datasets

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Datasets listed in this publication series

  1. Harbers, A; Schönfeld, J; Rüggeberg, A et al. (2008): (Table 7) Planktonic foraminiferal flux data of different test sizes in surface sediments of Site GeoB9205-1. https://doi.org/10.1594/PANGAEA.710794
  2. Harbers, A; Schönfeld, J; Rüggeberg, A et al. (2008): (Table 6) Absolute abundance of planktonic foraminifera of different test sizes in surface sediments of Site GeoB9205-1. https://doi.org/10.1594/PANGAEA.710790
  3. Harbers, A; Schönfeld, J; Rüggeberg, A et al. (2008): (Table 3) Planktonic foraminiferal flux data in sediment trap M61/1_245 samples. https://doi.org/10.1594/PANGAEA.710780
  4. Harbers, A; Schönfeld, J; Rüggeberg, A et al. (2008): (Table 1) Absolute abundance of planktonic foraminifera in sediment trap M61/1_245 samples. https://doi.org/10.1594/PANGAEA.710777
  5. Harbers, A; Schönfeld, J; Rüggeberg, A et al. (2008): (Table 4) Planktonic foraminiferal flux data of different test sizes in sediment trap M61/1_245 samples. https://doi.org/10.1594/PANGAEA.710787
  6. Harbers, A; Schönfeld, J; Rüggeberg, A et al. (2008): (Table 5) Mean test sizes of planktonic foraminifera in sediment trap M61/1_245 samples. https://doi.org/10.1594/PANGAEA.710789
  7. Harbers, A; Schönfeld, J; Rüggeberg, A et al. (2008): (Table 2) Test size distribution of planktonic foraminifera in sediment trap M61/1_245 samples. https://doi.org/10.1594/PANGAEA.710778