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TABLE 1. Location and water depth of the surface samples and sediment cores (in bold). Surface samples were taken with box and grab corer (BG, KG) and from top of sediment cores recovered with vibrocorer (VC*). All cores were drilled with vibrocorer (VC).

 

No.

Location

Date

Latitude

Longitude

Depth [m]

Gear

326-1

Alboran Platform

16.08.2006

35°52.450´N

3°05.150´W

102

BG

327-1

Alboran Platform

16.08.2006

35°53.890´N

3°05.950´W

115

BG

328-1

Alboran Platform

16.08.2006

35°55.130´N

3°03.311´W

69

BG

329-1

Alboran Platform

16.08.2006

35°55.200´N

3°02.820´W

60

BG

330-1

Alboran Platform

16.08.2006

35°56.200´N

3°00.690´W

63

BG

331-1

Alboran Platform

16.08.2006

35°59.300´N

2°59.500´W

86

BG

332-2

Alboran Platform

16.08.2006

35°59.510´N

2°57.210´W

83

BG

333-1

Alboran Platform

16.08.2006

36°00,655´N

2°49,732´W

161

BG

334-1

Alboran Platform

16.08.2006

35°57.500´N

2°56.020´W

97

BG

335-1

Alboran Platform

16.08.2006

35°58.035´N

2°59.890´W

73

BG

336-1

Alboran Platform

16.08.2006

35°54.450´N

3°05.535´W

91

BG

341-2

Alboran Platform

17.08.2006

35°55.103´N

3°02.194´W

53

VC*

342-1

Alboran Platform

17.08.2006

35°56.400´N

3°00.213´W

64

VC*

342-1

Alboran Platform

17.08.2006

35°56.400´N

3°00.213´W

64

VC

343-2

Alboran Platform

17.08.2006

35°55.588´N

3°01.915´W

38

VC*

351-1

Oran Bight

19.08.2006

35°48.490´N

0°34.000´W

70

BG

352-1

Oran Bight

19.08.2006

35°47.500´N

0°33.810´W

48

KG

353-1

Oran Bight

19.08.2006

35°47.230´N

0°37.650´W

73

BG

354-1

Oran Bight

19.08.2006

35°45.872´N

0°40.232´W

84

BG

355-1

Oran Bight

19.08.2006

35°50.696´N

0°35.306´W

127

BG

356-1

Oran Bight

19.08.2006

35°50.207´N

0°35.000´W

118

BG

357-1

Oran Bight

19.08.2006

35°51.204´N

0°33.092´W

100

BG

357-2

Oran Bight

19.08.2006

35°51.198´N

0°33.092´W

100

KG

358-1

Oran Bight

20.08.2006

35°50.802´N

0°32.700´W

85

BG

359-1

Oran Bight

20.08.2006

35°50.200´N

0°32.000´W

78

BG

360-1

Oran Bight

20.08.2006

35.49.890´N

0°31.600´W

83

BG

361-1

Oran Bight

20.08.2006

35°49.990´N

0°30.510´W

67

BG

362-1

Oran Bight

20.08.2006

35°50.895´N

0°29.496´W

20

KG

363-1

Oran Bight

20.08.2006

35°52.110´N

0°30.500´W

97

BG

364-1

Oran Bight

20.08.2006

35°52.900´N

0°30.800´W

121

BG

365-1

Oran Bight

20.08.2006

35°53.900´N

0°31.297´W

130

BG

367-1

Oran Bight

20.08.2006

35°48.000´N

0°33.700´W

63

VC

373-1

Oran Bight

20.08.2006

35.49.664´N

0°34.673´W

90

BG

374-1

Oran Bight

20.08.2006

35°50.005´N

0°34.886´W

100

BG

375-1

Oran Bight

20.08.2006

35.51.105´N

0°35.526´W

115

BG

377-1

Mallorca Shelf

24.08.2006

39°18.879´N

2°47.827´E

47

BG

378-1

Mallorca Shelf

24.08.2006

39°21.192´N

2°47.810´E

40

BG

379-1

Mallorca Shelf

24.08.2006

39°19.601´N

2°46.208´E

48

BG

380-1

Mallorca Shelf

24.08.2006

39°18.098´N

2°44.702´E

56

BG

381-1

Mallorca Shelf

24.08.2006

39°17.005´N

2°43.300´E

67

BG

382-1

Mallorca Shelf

24.08.2006

39°16.101´N

2°42.196´E

74

BG

384-1

Mallorca Shelf

24.08.2006

39°18.095´N

2°49.013´E

61

BG

387-1

Mallorca Shelf

24.08.2006

39°15.503´N

2°41.498´E

80

BG

388-1

Mallorca Shelf

24.08.2006

39°15.214´N

2°41.089´E

94

BG

390-1

Mallorca Shelf

24.08.2006

39°14.830´N

2°40.532´E

116

BG

391-1

Mallorca Shelf

24.08.2006

39°13.610´N

2°39.090´E

163

BG

393-1

Mallorca Shelf

25.08.2006

39°10.601´N

2°40.398´E

235

KG

401-1

Mallorca Shelf

25.08.2006

39°17.101´N

2°48.305´E

74

VC

403-1

Mallorca Shelf

25.08.2006

39°14.798´N

2.45.524´E

94

BG

404-1

Mallorca Shelf

25.08.2006

39°13.970´N

2°44.496´E

105

BG

TABLE 2. Recent abundance and water depth distribution and fossil abundance of the described species. Species have been classified, depending on their abundance on the total recent and fossil assemblages in percent in the three investigated areas, into the following categories: (o) = extremely rare; o = very rare (<1%); oo = rare (1-5%); ooo = frequent (5-10%), oooo = abundant (10-25%) and ooooo = dominant (>25%). The distribution of fossil species that are abundant in at least 1/3 of the core samples have been listed into the following time intervals: late Holocene (<3500 cal. years BP), middle Holocene (3500 - 6500 cal. years BP), early Holocene (6500 - 11 700 cal. years BP) and the late glacial period (>11 700 cal. years BP). The distribution of fossil species that are extremely rare and only occur in a few core samples is not given here except for those that have been only found in the fossil assemblages (* summarized to Ammonia spp., ** summarized to Asterigerinata mamilla s.l.) (in PDF only).

TABLE 3. Summary of Principal Component Analysis (PCA) in Q-Mode of the dead assemblages in the surface samples from the Alboran Platform, Oran Bight and Mallorca Shelf. Given are the dominant species and the most important associated species with their scores. Further, the explained variance for the principal components (PCs) is listed.

 

Alboran Platform

PC-axis

Variance [%]

Species

Score

1

56.8

Cassidulina obtusa

3.44

 

 

Globocassidulina subglobulosa

2.96

 

 

Gavelinopsis praegeri

1.65

2

16.8

Asterigerinata mamilla s.l.

4.47

 

 

Elphidium complanatum

1.91

 

 

Lobatula lobatula

1.59

3

8.4

Elphidium complanatum

3.28

 

 

Cibicides refulgens

3.18

 

 

Cibicidoides pseudoungerianus

1.36

4

7.7

Cibicidoides pseudungerianus

4.71

 

 

Cassidulina obtusa

1.48

 

 

Asterigerinata mamilla s.l.

1.26

Oran Bight

PC-axis

Variance [%]

Species

Score

1

42.2

Globocassidulina subglobulosa

5.03

 

 

Cassidulina obtusa

2.03

 

 

Spiroplectinella sagittula

1.42

2

15.1

Cassidulina laevigata s.l.

5.59

 

 

Globocassidulina oblonga

2.39

3

11.1

Gaudryina rudis

3.36

 

 

Lobatula lobatula

2.52

 

 

Eponides concameratus

2.20

4

8.0

Asterigerinata mamilla s.l.

5.26

 

 

Rosalina macropora

1.89

 

 

Discorbinella bertheloti

1.64

5

5.8

Lobatula lobatula

4.37

 

 

Neoconorbina terquemi

2.31

 

 

Cibicidoides pseudoungerianus

1.96

Mallorca Shelf

PC-axis

Variance [%]

Species

Score

1

35.1

Neoconorbina terquemi

5.18

 

 

Asterigerinata mamilla s.l.

3.71

 

 

Lobatula lobatula

1.45

2

25.9

Cassidulina laevigata s.l.

5.72

 

 

Bulimina elongata

2.10

 

 

Hyalinea balthica

1.45

3

14.2

Spiroplectinella sagittula

5.34

 

 

Asterigerinata mamilla s.l.

1.66

 

 

Lobatula lobatula

1.54

4

7.9

Gavelinopsis praegeri

5.23

 

 

Globocassidulina subglobulosa

1.91

 

 

Cassidulina obtusa

1.86

5

7.4

Lobatula lobatula

4.62

 

 

Textularia calva

1.71

 

 

Gaudyrina rudis

1.38

TABLE 4. Statistical output of the Redundancy Analysis (RDA) applied on the dead fauna in the surface samples. For the analysis, binary “dummy” variables for Alboran Platform, Oran Bight and Mallorca Shelf were used as covariables (see Milker et al., 2009).

 

 

Axis 1

Axis 2

Axis 3

Axis 4

Captured variance (%)

F value

p value

eigenvalues

0.141

0.042

0.011

0.009

 

 

 

species-environment correlations

0.778

0.619

0.595

0.553

 

 

 

cumulative percentage variance

 

 

 

 

 

 

 

of species data

19.0

24.7

26.2

27.4

 

 

 

of species-environment relation

67.1

87.2

92.4

96.7

 

 

 

 

 

 

 

 

 

 

 

Correlation

 

 

 

 

 

 

 

water depth

0.8071

-0.2602

0.1625

0.0757

12.9

6.25

<0.0002

salinity

-0.7063

-0.1551

-0.0939

0.0479

9.9

4.62

<0.0002

>1000 µm

-0.4778

-0.6811

0.3586

-0.3236

7.3

3.33

<0.0058

chlorophyll a

-0.5153

0.4498

0.6924

-0.0721

6.9

3.13

<0.0058

<63 µm

0.4628

0.3682

-0.4030

-0.4219

5.4

2.39

<0.0276

temperature

-0.2025

0.4289

0.2573

-0.6046

2.5

1.10

<0.3348

TABLE 5. Summary of Principal Component Analysis (PCA) in Q-Mode of the fossil assemblages in the sediment cores from the Alboran Platform, Oran Bight and Mallorca Shelf. Given are the dominant species and the most important associated species with their scores. Further, the explained variance for the principal components (PCs) is listed.

Core 342-1 (Alboran Platform)

PC Axis

Variance [%]

Species

Score

1

37.8

Asterigerinata mamilla

5.894

 

 

Elphidium complanatum

5.732

 

 

Spirillina vivipara

2.389

 

 

Brizalina difformis

1.372

2

33.7

Lobatula lobatula

7.448

 

 

Elphidium sp. 1

4.296

 

 

Elphidium complanatum forma tyrrhenianum

1.883

 

 

Elphidium aculeatum

1.243

3

14.0

Cibicidoides pseudoungerianus

6.409

 

 

Globocassidulina subglobosa

2.724

 

 

Globocassidulina obtusa

2.434

 

 

Lobatula lobatula

2.331

Core 367-1 (Oran Bight)

PC Axis

Variance [%]

Species

Score

1

50.9

Asterigerinata mamilla

4.740

 

 

Lobatula lobatula

3.895

 

 

Quinqueloculina stelligera

1.944

 

 

Rosalina macropora

1.792

2

44.9

Asterigerinata mamilla

5.085

 

 

Globocassidulina subglobosa

2.874

 

 

Discorbinella bertheloti

2.826

 

 

Elphidium complanatum

2.096

Core 401-1 (Mallorca Shelf)

PC Axis

Variance [%]

Species

Score

1

33.6

Neoconorbina terquemi

9.783

 

 

Tretomphalus sp. 1

2.406

2

34.1

Tretomphalus concinnus

7.798

 

 

Sigmoilinita costata

2.564

 

 

Spirorbina sp. 1

2.412

 

 

Quinqueloculina stelligera

2.369

3

17.5

Cassidulina laevigata s.l.

9.227

 

 

Tretomphalus sp. 1

2.374

 

 

Reussella spinulosa

1.642

 

 

Spirillina vivipara

1.033

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