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Table 1 Mean and maximum biomass (B), density (D) and average individual biomass (AIB) of the polychaete taxa with the total biomass exceeding 1 g and frequency of occurrence ≥20 %

From: Small-scale spatial variation of soft-bottom polychaete biomass in an Antarctic glacial fjord (Ezcurra Inlet, South Shetlands): comparison of sites at different levels of disturbance

Species

Functional group

Total biomass

Inner area

Outer area

B (g/0.1 m2)

D (ind/0.1 m2)

AIB

B (g/0.1 m2)

D (ind/0.1 m2)

AIB

Mean ± SD

Max

Mean ± SD

Max

Mean ± SD

Max

Mean ± SD

Max

Mean ± SD

Max

Mean ± SD

Max

Amphitrite kerguelensis

SST

87.65

0.1 ± 0.4*

1.4

0.2 ± 0.4*

1

0.1 ± 0.4*

1.4

4.2 ± 4.3

13.3

1.2 ± 1.2

4

2.5 ± 2.3

6.3

Aphelochaeta/Chaetozone

SMT

68.02

1.8 ± 0.6

3.2

398.1 ± 139.0*

692

0.005 ± 0.004*

0.02

1.6 ± 0.6

3.1

202.9 ± 100.2

439

0.009 ± 0.003

0.02

Scalibregma inflatum

BMX

30.27

0.2 ± 0.3*

1.3

26.4 ± 19.0

79

0.006 ± 0.005*

0.02

1.3 ± 0.6

2.4

37.3 ± 20.6

97

0.04 ± 0.01

0.06

Euchone pallida

FST

29.19

0.2 ± 0.2*

0.6

2.8 ± 2.2*

7

0.05 ± 0.05

0.2

1.3 ± 1.3

5.2

42.8 ± 45.3

111

0.1 ± 0.2

0.6

Maldane sarsi antarctica

BSX

21.64

0.1 ± 0.1*

0.4

13.9 ± 13.6

57

0.01 ± 0.009*

0.04

1.0 ± 0.6

2.0

19.2 ± 12.7

50

0.05 ± 0.04

0.1

Asychis amphiglypta

BSX

18.74

–

–

–

–

–

–

0.9 ± 0.8

2.8

14.7 ± 17.0

77

0.08 ± 0.08

0.3

Lumbriclymenella robusta

BSX

11.72

–

–

–

–

–

–

0.6 ± 0.5

1.3

5.7 ± 4.8

18

0.09 ± 0.07

0.2

Galathowenia scotiae

SDT

10.99

0.1 ± 0.1*

0.3

1.9 ± 1.8

7

0.03 ± 0.03*

0.1

0.5 ± 0.6

2.4

5.4 ± 7.3

26

0.1 ± 0.09

0.4

Terebellides kerguelensis

SST

9.75

0.4 ± 0.3*

1.0

3.4 ± 3.4*

11

0.1 ± 0.07*

0.2

0.1 ± 0.3

0.8

1.4 ± 1.3

5

0.09 ± 0.2

0.8

Helicosiphon biscoeensis

FST

7.81

–

–

–

–

–

–

0.4 ± 0.9

3.9

16.7 ± 31.7

127

0.007 ± 0.01

0.03

Lumbrineris magalhaensis

CMJ

6.85

0.1 ± 0.1

0.5

22.1 ± 7.1*

39

0.008 ± 0.01*

0.04

0.2 ± 0.2

0.9

7.7 ± 6.4

27

0.03 ± 0.03

0.1

Rhodine intermedia

BSX

5.73

0.002 ± 0.004*

0.01

0.3 ± 0.7*

2

0.002 ± 0.003*

0.01

0.3 ± 0.5

1.7

22.1 ± 23.5

76

0.009 ± 0.009

0.04

Perkinsiana littoralis

FST

4.85

0.1 ± 0.1

0.7

0.8 ± 1.4

6

0.02 ± 0.04

0.1

0.2 ± 0.3

1.1

1.1 ± 1.1

3

0.08 ± 0.1

0.4

Laonice weddelia

SDT

3.24

0.1 ± 0.1

0.2

20.6 ± 11.0*

47

0.004 ± 0.002

0.008

0.1 ± 0.1

0.2

11.8 ± 8.5

39

0.006 ± 0.006

0.02

Barrukia cristata

CMJ

2.59

0.1 ± 0.2

0.7

1.3 ± 1.1

3

0.1 ± 0.3

1.0

0.1 ± 0.2

1.0

0.7 ± 1.1

4

0.03 ± 0.1

0.5

Eupraxillella sp.

BSX

2.27

0.002 ± 0.004*

0.01

0.2 ± 0.4*

1

0.002 ± 0.004*

0.01

0.1 ± 0.2

0.7

4.0 ± 3.3

10

0.02 ± 0.03

0.1

Levinsenia gracilis

SMX

1.46

0.001 ± 0.003*

0.01

0.2 ± 0.4*

1

0.001 ± 0.003*

0.01

0.1 ± 0.1

0.2

110.6 ± 65.0

296

0.001 ± 0.0004

0.002

Notomastus latericeus

BMX

1.3

0.03 ± 0.05

0.2

0.6 ± 1.0

4.0

0.03 ± 0.05

0.2

0.03 ± 0.08

0.4

0.4 ± 0.8

3.0

0.03 ± 0.08

0.4

Capitellidae gen. sp.

BMX

1.17

0.01 ± 0.006*

0.03

13.5 ± 8.9*

35.0

0.001 ± 0.002

0.01

0.05 ± 0.06

0.2

38.2 ± 30.9

120.0

0.001 ± 0.001

0.005

Neosabellides elongatus

SST

1.09

0.001 ± 0.003*

0.01

0.1 ± 0.3*

1

0.001 ± 0.003*

0.01

0.1 ± 0.2

0.9

4.3 ± 6.0

21

0.006 ± 0.02

0.07

  1. CMJ carnivore, motile, jawed; CDJ carnivore, discretely motile, jawed; HMJ herbivore, motile, jawed; SMX surface deposit feeding, motile, non-jawed; SDT surface deposit feeding, discretely motile, tentaculate; SMT surface deposit feeding, motile, tentaculate; SST surface deposit feeding, sessile, tentaculate; SDJ surface deposit feeding, discretely motile, jawed; SMJ surface deposit feeding, motile, jawed; BMX burrowing, motile, non-jawed; BSX burrowing, sessile, non-jawed; and FST filter-feeding, sessile, tentaculate
  2. * Significant differences between both areas
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Helgoland Marine Research

ISSN: 1438-3888

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