Elshanawany, Rehab; Zonneveld, Karin A F; Ibrahim, Mohammed I; Kholeif, S E A (2010): Individual dinoflagellate cysts species of surface sediment samples from the Mediterranean Sea [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.746639, Supplement to: Elshanawany, R et al. (2010): Distribution patterns of recent organic-walled dinoflagellate cysts in relation to environmental parameters in the Mediterranean Sea. Palynology, 34(2), 233-260, https://doi.org/10.1080/01916121003711665
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Abstract:
To determine the relationship between the spatial dinoflagellate cyst distribution and oceanic environmental conditions, 34 surface sediments from the Eastern and Western Mediterranean Sea have been investigated for their dinoflagellate cyst content. Multivariate ordination analyses identified sea-surface temperature, chlorophyll-a , nitrate concentration, salinity, and bottom oxygen concentration as the main factors affecting dinoflagellate cyst distribution in the region. Based on the relative abundance data, two associations can be distinguished that can be linked with major oceanographic settings. (1) An offshore eastern Mediterranean regime where surface sediments are characterized by oligotrophic, warm, saline surface water, and high oxygen bottom water concentrations (Impagidinium species, Nematosphaeropsis labyrinthus, Pyxidinopsis reticulata and Operculodinium israelianum). Based on the absolute abundance, temperature is positively related to the cyst accumulation of Operculodinium israelianum. Temperature does not form a causal factor influencing the accumulation rate of the other species in this association. Impagidinium species and Nematosphaeropsis labyrinthus show a positive relationship between cyst accumulation and nitrate availability in the upper waters. (2) Species of association 2 have highest relative abundances in the Western Mediterranean Sea, Strait of Sicily/NW Ionian Sea, and/or the distal ends of the Po/Nile/Rhône River plumes. At these stations, surface waters are characterized by (relative to the other regime) higher productivity associated with lower sea-surface temperature, salinity, and lower bottom water oxygen concentrations (Selenopemphix nephroides, Echinidinium spp., Selenopemphix quanta, Quinquecuspis concreta, Brigantedinium spp. and Lingulodinium machaerophorum). Based on both the absolute and relative abundances, Selenopemphix nephroides is suggested to be a suitable indicator to trace changes in the trophic state of the upper waters. The distribution of Lingulodinium machaerophorum is related to the presence of river-influenced surface waters, notably the Nile River. We suggest that this species might form a suitable marker to trace past variations in river discharge, notably from the Nile.
Project(s):
Coverage:
Median Latitude: 35.737778 * Median Longitude: 21.559630 * South-bound Latitude: 32.321500 * West-bound Longitude: -1.949833 * North-bound Latitude: 42.461500 * East-bound Longitude: 34.649200
Date/Time Start: 1998-01-22T02:36:00 * Date/Time End: 2001-11-26T21:35:00
Minimum DEPTH, sediment/rock: 0 m * Maximum DEPTH, sediment/rock: 0 m
Event(s):
GeoB5845-1 * Latitude: 32.321500 * Longitude: 34.165000 * Date/Time: 1999-04-05T06:30:00 * Elevation: -1284.0 m * Recovery: 0.42 m * Location: Eastern Mediterranean Sea * Campaign: M44/3 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC) * Comment: 2 big tubes filled
GeoB5847-1 * Latitude: 32.820500 * Longitude: 34.164000 * Date/Time: 1999-04-06T08:48:00 * Elevation: -1532.0 m * Recovery: 0.4 m * Location: Eastern Mediterranean Sea * Campaign: M44/3 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC) * Comment: 3 big tubes filled
M40/4_MUC65 * Latitude: 36.145833 * Longitude: 25.563500 * Date/Time: 1998-01-22T02:36:00 * Elevation: -828.0 m * Campaign: M40/4 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC)
Comment:
The uppermost centimetre (0 - 1 cm) of each core was analysed.
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | Event label | Event | ||||
2 | Latitude of event | Latitude | ||||
3 | Longitude of event | Longitude | ||||
4 | Elevation of event | Elevation | m | |||
5 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
6 | Sample ID | Sample ID | Elshanawany, Rehab | |||
7 | Counts | Counts | # | Elshanawany, Rehab | ||
8 | Cysts | Cysts | #/g | Elshanawany, Rehab | ||
9 | Ataxiodinium choane | A. choane | # | Elshanawany, Rehab | Counting, palynology | A. choane |
10 | Bitectatodinium spongium | B. spongium | # | Elshanawany, Rehab | Counting, palynology | |
11 | Bitectatodinium tepikiense | B. tepikiense | # | Elshanawany, Rehab | Counting, palynology | |
12 | Brigantedinium spp. | Brigantedinium spp. | # | Elshanawany, Rehab | Counting, palynology | |
13 | Echinidinium spp. | Echinidinium spp. | # | Elshanawany, Rehab | Counting, palynology | |
14 | Impagidinium aculeatum | I. aculeatum | # | Elshanawany, Rehab | Counting, palynology | |
15 | Impagidinium paradoxum | I. paradoxum | # | Elshanawany, Rehab | Counting, palynology | |
16 | Impagidinium patulum | I. patulum | # | Elshanawany, Rehab | Counting, palynology | |
17 | Impagidinium plicatum | I. plicatum | # | Elshanawany, Rehab | Counting, palynology | |
18 | Impagidinium sphaericum | I. sphaericum | # | Elshanawany, Rehab | Counting, palynology | |
19 | Impagidinium spp. | Impagidinium spp. | # | Elshanawany, Rehab | Counting, palynology | |
20 | Impagidinium strialatum | I. strialatum | # | Elshanawany, Rehab | Counting, palynology | |
21 | Impagidinium velorum | I. velorum | # | Elshanawany, Rehab | Counting, palynology | |
22 | Islandinium minutum | I. minutum | # | Elshanawany, Rehab | Counting, palynology | |
23 | Lingulodinium machaerophorum | L. machaerophorum | # | Elshanawany, Rehab | Counting, palynology | |
24 | Nematosphaeropsis labyrinthus | N. labyrinthus | # | Elshanawany, Rehab | Counting, palynology | |
25 | Operculodinium centrocarpum | O. centrocarpum | # | Elshanawany, Rehab | Counting, palynology | |
26 | Operculodinium israelianum | O. israelianum | # | Elshanawany, Rehab | Counting, palynology | |
27 | Pentapharsodinium dalei | P. dalei | # | Elshanawany, Rehab | Counting, palynology | |
28 | Polysphaeridium zoharyi | P. zoharyi | # | Elshanawany, Rehab | Counting, palynology | |
29 | Protoperidinium americanum | P. americanum | # | Elshanawany, Rehab | Counting, palynology | |
30 | Pyxidinopsis reticulata | P. reticulata | # | Elshanawany, Rehab | Counting, palynology | |
31 | Quinquecuspis concreta | Q. concreta | # | Elshanawany, Rehab | Counting, palynology | |
32 | Selenopemphix nephroides | S. nephroides | # | Elshanawany, Rehab | Counting, palynology | |
33 | Selenopemphix quanta | S. quanta | # | Elshanawany, Rehab | Counting, palynology | |
34 | Spiniferites mirabilis | S. mirabilis | # | Elshanawany, Rehab | Counting, palynology | |
35 | Spiniferites ramosus | S. ramosus | # | Elshanawany, Rehab | Counting, palynology | |
36 | Spiniferites spp. | Spiniferites spp. | # | Elshanawany, Rehab | Counting, palynology | |
37 | Stelladinium stellatum | S. stellatum | # | Elshanawany, Rehab | Counting, palynology | |
38 | Tectatodinium pellitum | T. pellitum | # | Elshanawany, Rehab | Counting, palynology | |
39 | Trinovantedinium applanatum | T. applanatum | # | Elshanawany, Rehab | Counting, palynology | |
40 | Tuberculodinium vancampoae | T. vancampoae | # | Elshanawany, Rehab | Counting, palynology | |
41 | Votadinium calvum | V. calvum | # | Elshanawany, Rehab | Counting, palynology |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1224 data points