1  21.6933
1  30.6961
1  22.2446
1  9.4112
1  12.7769
1  5.6321
1  5.0120
1  4.8549
1  3.4059
1  1.0050
2  3.5440
2  3.5171
2  3.7643
2  1.9313
2  8.1688
2  2.2671
2  2.7514
2  2.3345
2  7.0576
2  6.1400
3  4.2720
3  3.1385
3  0.0000
3  1.5264
3  2.7659
3  4.1437
3  3.1385
3  3.2311
3  1.5264
3  4.7297
4  3.9459
4  0.0000
4  3.4015
4  3.1385
4  1.3454
4  3.1385
4  1.0198
4  7.2139
4  3.7108
4  3.7108
5  0.9219
5  1.5264
5  1.2806
5  1.6124
5  4.5343
5  3.7108
5  5.7871
5  4.3566
5  7.4216
5  10.7299
6  12.6491
6  2.4839
6  1.8682
6  6.2032
6  27.1330
6  6.9029
6  17.8306
6  14.2443
6  9.5016
6  12.0669
7  2.1024
7  7.3498
7  5.3151
7  9.2114
7  10.9563
7  10.4848
7  12.1400
7  9.1006
7  4.5343
7  2.4839
8  3.1623
8  3.1065
8  2.3345
8  0.0000
8  6.3071
8  3.0232
8  5.6321
8  3.0806
8  6.4070
8  2.4839
9  0.0000
9  3.6139
9  6.3632
9  2.4042
9  0.8544
9  1.1000
9  1.5653
9  4.8836
9  5.8592
9  1.7720
10  0.0000
10  0.0000
10  1.4866
10  18.3371
10  0.9219
10  5.5036
10  1.2806
10  2.2091
10  1.8439
10  3.0529
11  6.2968
11  5.7871
11  8.8233
11  5.7009
11  2.0025
11  7.3027
11  3.5511
11  1.6124
11  13.6165
11  1.9647
12  16.7027
12  13.1309
12  7.4216
12  5.7009
12  1.9000
12  5.6143
12  11.1759
12  8.5000
12  19.4095
12  38.5156
 
Variates are distances (in meters) moved by tagged codfish in 10 successive
 2-minute periods, beginning at dawn (1st ten numbers),
 one hour after down (2nd ten numbers), etc up until
 12 hours after dawn (last ten numbers).
Unpublished data from Don Clark, Biology Dept., Memorial University

MTB > read 'fishmov.dat'  c1 c2;
SUBC> nobs = 120.
 MTB > describe c2;
 SUBC> by c1.
 
                C1        N     MEAN   MEDIAN   TRMEAN    STDEV   SEMEAN
 C2              1       10    11.67     7.52    10.63     9.94     3.14
                 2       10    4.148    3.531    3.922    2.191    0.693
                 3       10    2.847    3.138    2.968    1.460    0.462
                 4       10    3.063    3.270    2.926    1.986    0.628
                 5       10    4.188    4.034    3.779    3.145    0.995
                 6       10    11.09    10.78    10.24     7.60     2.40
                 7       10     7.37     8.23     7.43     3.58     1.13
                 8       10    3.554    3.094    3.641    2.004    0.634
                 9       10    2.842    2.088    2.757    2.218    0.702
                10       10     3.46     1.67     2.04     5.47     1.73
                11       10     5.67     5.74     5.18     3.72     1.18
                12       10    12.81     9.84    10.96    10.49     3.32
 
                C1      MIN      MAX       Q1       Q3
 C2              1     1.00    30.70     4.49    21.83
                 2    1.931    8.169    2.318    6.369
                 3    0.000    4.730    1.526    4.176
                 4    0.000    7.214    1.264    3.770
                 5    0.922   10.730    1.465    6.196
                 6     1.87    27.13     5.27    15.14
                 7     2.10    12.14     4.02    10.60
                 8    0.000    6.407    2.447    5.801
                 9    0.000    6.363    1.039    5.128
                10     0.00    18.34     0.69     3.67
                11     1.61    13.62     1.99     7.68
                12     1.90    38.52     5.68    17.38

Does movement depend in any systematic way on time of day ?