表1
イトウの体長 |
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体長cm |
100 |
90 |
80 |
70 |
60 |
50 |
40 |
30 |
20 |
10 |
総計 匹 |
総計cm |
平均cm |
|
|
1994 |
0 |
0 |
1 |
2 |
3 |
4 |
12 |
6 |
4 |
0 |
32 |
1471 |
46.0 |
|
|
1995 |
0 |
0 |
3 |
3 |
8 |
21 |
8 |
17 |
15 |
4 |
79 |
3538 |
44.8 |
|
|
1996 |
0 |
0 |
1 |
3 |
8 |
9 |
12 |
17 |
15 |
4 |
69 |
2846 |
41.2 |
|
|
1997 |
0 |
0 |
0 |
5 |
14 |
24 |
30 |
13 |
7 |
0 |
93 |
4503 |
48.4 |
|
|
1998 |
0 |
1 |
0 |
15 |
13 |
19 |
18 |
16 |
9 |
3 |
94 |
4733 |
50.4 |
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|
1999 |
0 |
1 |
3 |
6 |
4 |
25 |
16 |
25 |
8 |
0 |
88 |
4212 |
47.8 |
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|
2000 |
0 |
2 |
3 |
9 |
26 |
12 |
14 |
25 |
11 |
2 |
104 |
5244 |
50.4 |
|
|
2001 |
0 |
2 |
4 |
5 |
13 |
13 |
19 |
20 |
8 |
1 |
85 |
4178 |
49.1 |
|
|
2002 |
0 |
1 |
6 |
5 |
13 |
15 |
23 |
22 |
14 |
1 |
100 |
4796 |
48.0 |
|
|
2003 |
0 |
1 |
8 |
10 |
13 |
17 |
26 |
16 |
17 |
0 |
108 |
5350 |
49.5 |
|
|
2004 |
1 |
0 |
4 |
10 |
12 |
15 |
18 |
20 |
18 |
1 |
99 |
4704 |
47.5 |
|
|
2005 |
0 |
0 |
2 |
10 |
12 |
13 |
15 |
9 |
4 |
0 |
65 |
3454 |
53.1 |
|
|
2006 |
0 |
1 |
4 |
8 |
11 |
9 |
9 |
8 |
7 |
1 |
58 |
3087 |
53.2 |
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|
2007 |
0 |
1 |
6 |
10 |
20 |
11 |
11 |
20 |
4 |
0 |
83 |
4459 |
53.7 |
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|
2008 |
0 |
1 |
5 |
17 |
18 |
14 |
18 |
10 |
10 |
0 |
93 |
5040 |
54.2 |
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|
2009 |
0 |
2 |
3 |
15 |
7 |
18 |
12 |
9 |
3 |
0 |
69 |
3873 |
56.1 |
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|
2010 |
0 |
0 |
8 |
6 |
19 |
16 |
9 |
6 |
4 |
0 |
68 |
3873 |
57.0 |
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|
2011 |
1 |
3 |
7 |
16 |
15 |
12 |
13 |
10 |
17 |
0 |
94 |
5087 |
54.1 |
|
|
2012 |
0 |
0 |
10 |
14 |
9 |
14 |
16 |
32 |
25 |
0 |
120 |
5653 |
47.1 |
|
|
2013 |
0 |
1 |
4 |
5 |
13 |
24 |
21 |
30 |
19 |
0 |
117 |
5201 |
44.5 |
|
|
2014 |
0 |
1 |
3 |
12 |
16 |
33 |
20 |
17 |
9 |
0 |
111 |
5710 |
51.4 |
|
|
2015 |
0 |
4 |
5 |
12 |
20 |
27 |
18 |
12 |
3 |
0 |
101 |
5685 |
56.3 |
|
|
2016 |
1 |
2 |
8 |
13 |
18 |
14 |
18 |
6 |
5 |
0 |
85 |
4925 |
57.9 |
|
|
2017 |
0 |
2 |
2 |
12 |
26 |
20 |
16 |
9 |
7 |
1 |
95 |
5181 |
54.5 |
|
|
2018 |
0 |
2 |
5 |
10 |
30 |
18 |
10 |
16 |
11 |
0 |
102 |
5525 |
54.2 |
|
|
2019 |
0 |
0 |
6 |
13 |
13 |
13 |
13 |
15 |
5 |
7 |
85 |
4311 |
50.7 |
|
|
2020 |
0 |
3 |
3 |
11 |
13 |
17 |
11 |
11 |
6 |
0 |
75 |
4100 |
54.7 |
|
|
2021 |
0 |
2 |
1 |
4 |
10 |
16 |
10 |
8 |
1 |
0 |
52 |
2790 |
53.7 |
|
|
2022 |
0 |
0 |
1 |
5 |
7 |
11 |
11 |
9 |
4 |
0 |
48 |
2392 |
49.8 |
|
|
2023 |
0 |
0 |
1 |
1 |
4 |
7 |
9 |
7 |
2 |
0 |
31 |
1437 |
46.4 |
|
|
総計 |
3 |
33 |
117 |
267 |
408 |
481 |
456 |
441 |
272 |
25 |
2503 |
127358 |
50.9 |
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