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Table 1 Nested ANOVA results of the 12 most abundant species of this study

From: Year-to-year variation in larval fish assemblages of the Southern North Sea

 

Year

Month within year

Week within month and year

Month range

Mean density (Ind 100 m−3)

CV%

Ammodytes marinus

23.2 *

13.4 ns

63.4

1–5

64.5

90.4

Limanda limanda

0.1 ns

52.6 ***

47.3

1–7

17.1

80.5

Sardina pilchardus

>0.1 ns

6.6 ns

93.4

6–9

15.9

114.1

Gobiidae spp.

7.2 ns

31.8 **

61.0

4–8

11.3

77.9

Trachurus trachurus

>0.1 ns

75.0 ***

25.0

6–9

8.8

81.4

Agonus cataphractus

>0.1 ns

43.4 **

56.6

1–4

8.5

31.2

Callionymus lyra

>0.1 ns

49.2 ***

50.8

4–9

6.1

52.0

Myoxocephalus scorpius

1.2 ns

11.5 ns

87.3

1–3

6.0

106.9

Buglossidium luteum

>0.1 ns

35.5 **

64.5

5–8

5.7

56.0

Arnoglossus laterna

>0.1 ns

53.8 ***

46.2

4–9

3.9

46.1

Hyperoplus immaculatus

>0.1 ns

6.7 ns

93.3

4–10

3.7

64.3

Taurulus bubalis

4.2 ns

30.1 **

65.7

3–7

3.2

82.6

  1. Data analysed are weekly mean larval densities. Four values for weeks are nested within month, months are nested within years. The percentages of explained variance by each level are given. (ns = P > 0.05, *P < 0.05, **P < 0.01, ***P < 0.001)