Table 1 Average element content in the sample collected (A and B considered as a unique set).

From: A non-lethal method to assess element content in the endangered Pinna nobilis

 

Seawater (μg g−1)

Sediment (μg g−1)

Shell (μg g−1)

Byssus (μg g−1)

Hepatopancreas (μg g−1)

Gills (μg g−1)

Mantle (μg g−1)

Muscle (μg g−1)

Ag

n.d.

n.d

n.d

0.2 ± 0.1

0.2 ± 0.2

1.1 ± 0.9

1.3 ± 0.5

0.2 ± 0.2

Ala

n.d.

40,000 ± 10,000

n.d

440 ± 80

60 ± 50

100 ± 100

200 ± 100

20 ± 10

As

n.d.

7 ± 2

n.d

2 ± 2

50 ± 10

30 ± 10

70 ± 30

20 ± 5

B

3.6 ± 0.1

10 ± 12

1.2 ± 0.2

200 ± 200

34 ± 9

16 ± 8

19 ± 6

17 ± 3

Ba*

0.025 ± 0.002

400 ± 200

1.1 ± 0.2

5 ± 2

5 ± 1

5 ± 6

3 ± 1

1.2 ± 0.3

Be

n.d.

n.d.

n.d.

n.d.

0.2 ± 0.08

0.04 ± 0.02

0.05 ± 0.01

0.023 ± 0.003

Cd

n.d.

n.d.

0.003 ± 0.004

0.08 ± 0.09

4 ± 4

7 ± 5

7 ± 8

4 ± 3

Co

n.d.

0.5 ± 0.9

0.2 ± 0.4

0.1 ± 0.2

20 ± 30

1 ± 2

0.3 ± 0.4

0.1 ± 0.2

Cr

n.d.

26 ± 5

0.6 ± 0.5

1 ± 1

n.d.

0.1 ± 0.2

0.4 ± 0.3

n.d.

Cu

n.d.

3 ± 3

0.08 ± 0.04

80 ± 30

19 ± 9

10 ± 10

11 ± 6

5 ± 2

Fea

n.d.

6000 ± 3000

8 ± 3

1100 ± 300

330 ± 70

190 ± 80

200 ± 100

60 ± 10

Li

0.3 ± 0.01

n.d

2.5 ± 0.2

0.2 ± 0.1

1.7 ± 0.5

0.6 ± 0.3

1 ± 0.4

0.74 ± 0.1

Mna

0.0118 ± 0.0008

140 ± 30

1.8 ± 0.6

1.2 ± 1

300 ± 100

400 ± 200

200 ± 100

140 ± 70

Mo

n.d.

4 ± 2

n.d

20 ± 20

n.d.

0.4 ± 0.6

0.3 ± 0.4

n.d.

Ni

n.d.

8 ± 2

0.3 ± 0.2

8 ± 6

3 ± 2

3 ± 2

2 ± 2

1 ± 1

Pb

n.d.

36 ± 10

2.2 ± 0.3

50 ± 20

7 ± 5

13 ± 6

12 ± 4

4 ± 4

S

890 ± 30

5,000 ± 3,000

2,200 ± 100

13,000 ± 1000

18,000 ± 1000

9000 ± 3000

10,000 ± 2000

9200 ± 600

Sb

n.d.

n.d.

n.d.

4 ± 5

n.d.

n.d.

n.d.

n.d.

Se

n.d.

5 ± 3

0.07 ± 0.05

5 ± 3

9 ± 2

6 ± 2

7 ± 2

2.6 ± 0.6

Sia*

–

220,000 ± 100,000

0.3 ± 0.2

40 ± 20

50 ± 20

19 ± 4

22 ± 5

13 ± 5

Sn

0.01 ± 0.01

3 ± 3

n.d.

1.7 ± 0.8

n.d.

n.d.

n.d.

n.d.

Sr

7 ± 0.3

600 ± 400

140 ± 0.8

12 ± 8

80 ± 20

70 ± 30

70 ± 50

50 ± 30

Tia

n.d.

800 ± 500

n.d.

61 ± 7

6 ± 4

5 ± 2

5 ± 4

2 ± 1

V

n.d.

40 ± 20

n.d.

60 ± 20

0.3 ± 0.5

0.7 ± 0.6

1.1 ± 0.8

0.2 ± 0.2

Zn*

0.003 ± 0.005

60 ± 20

2.3 ± 0.4

150 ± 50

3600 ± 600

4000 ± 1000

3000 ± 1000

3000 ± 2000

  1. In bold the cases where site A and site B were significantly different (T-test, p = 0.05). Hg and Tl were analyzed and not detected in any specimen.
  2. n.d. not detected.
  3. aSediment data were collected as the corresponding oxide.
  4. *Comparable amount was found in the shell control sample.
  5. –Not analyzed.
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