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Table 4 Modal groups of size frequency distributions of females H. planatus fitted by least squares through the procedure described by Bas et al. (2005)

From: Moult cycle and growth of the crab Halicarcinus planatus (Brachyura, Hymenosomatidae) in the Beagle Channel, southern tip of South America

Mes

1

2

3

4

5

6

7

χ 2

P

Nov-06

3.37 ± 0.44 0.14

5.19 ± 0.32 0.08

6.52 ± 0.35 0.11

 

9.12 ± 0.70 0.40

10.99 ± 0.33 0.21

12.50 ± 0.41 0.05

1.92

0.99

Dec-06

3.18 ± 0.30 0.07

4.73 ± 0.20 0.08

6.20 ± 0.40 0.08

 

9.00 ± 1.00 0.77

  

5.70

0.99

Jan-07

3.25 ± 0.37 0.17

4.74 ± 0.60 0.25

6.32 ± 0.54 0.13

7.58 ± 0.16 0.07

8.42 ± 0.31 0.19

9.42 ± 0.27 0.18

10.61 ± 0.07 0.02

2.46

0.99

Feb-07

4.05 ± 0.72 0.33

5.47 ± 0.38 0.16

6.58 ± 0.21 0.06

 

8.59 ± 1.10 0.45

  

3.99

0.99

Mar-07

 

4.70 ± 1.10 0.50

 

7.70 ± 1.20 0.40

 

9.70 ± 0.35 0.08

 

5.56

0.98

Apr-07

3.60 ± 0.62 0.24

4.97 ± 0.40 0.18

 

7.46 ± 1.15 0.52

 

9.85 ± 0.39 0.06

 

5.64

0.99

May-07

3.46 ± 0.43 0.14

4.74 ± 0.24 0.19

5.75 ± 0.24 0.14

7.15 ± 0.62 0.40

 

9.61 ± 0.70 0.13

 

5.71

0.99

June-07

3.34 ± 0.21 0.21

4.76 ± 0.37 0.26

6.27 ± 0.50 0.19

7.64 ± 0.22 0.14

 

9.61 ± 0.64 0.21

 

0.46

0.99

July-07

3.83 ± 0.74 0.29

5.34 ± 0.45 0.12

6.91 ± 0.46 0.10

 

9.00 ± 0.80 0.45

 

11.50 ± 0.44 0.05

4.56

0.99

Aug-07

 

4.40 ± 0.87 0.36

6.55 ± 0.39 0.16

7.47 ± 0.22 0.04

8.57 ± 0.45 0.23

9.90 ± 0.40 0.15

11.85 ± 0.17 0.06

4.85

0.99

Sept-07

 

4.60 ± 0.93 0.55

  

8.32 ± 1.12 0.45

  

3.95

0.99

Oct-07

3.00 ± 0.04 0.01

5.01 ± 0.69 0.51

6.76 ± 0.17 0.07

 

8.57 ± 1.03 0.41

  

1.16

0.99

  1. Critical value χ 2 = 27.58. Size (in mm CW) ± standard deviation and proportions of modal groups are shown. χ 2 statistic, P associated probability of goodness of fit