Title
水田地帯におけるイシガイ科二枚貝の保全に関する研究( 本
文(Fulltext) )
Author(s)
近藤, 美麻
Report No.(Doctoral
Degree)
博士(農学) 甲第619号
Issue Date
2014-03-13
Type
博士論文
Version
ETD
URL
http://hdl.handle.net/20.500.12099/49099
※この資料の著作権は、各資料の著者・学協会・出版社等に帰属します。1 ... 1 1.1 ... 1 1.2 ... 2 1.3 ... 3 1.3.1 ... 3 1.3.2 ... 3 1.3.3 ... 4 1.3.4 ... 5 1.3.5 ... 6 1.4 ... 7 1.5 ... 8 2 ... 9 2.1 ... 9 2.2 ... 16 2.2.1 ... 16 2.2.2 ... 17 2.2.3 ... 19 2.2.4 ... 20 2.2.5 3 ... 23 3 ... 26 3.1 ... 26 3.2 ... 28 3.3 ... 39 3.4 2011 7 ... 48
3.5 ... 50 3.5.1 ... 50 3.5.2 ... 53 3.5.3 2013 ... 54 3.6 ... 57 4 ... 58 4.1 ... 59 4.1.1 ... 59 4.1.2 ... 61 4.1.3 ... 64 4.2 ... 65 4.2.1 ... 65 4.2.2 ... 66 4.2.3 ... 71 4.2.4 ... 73 4.3 ... 74 4.3.1 ... 74 4.3.2 ... 76 4.4 ... 79 5 ... 80 5.1 ... 80 5.1.1 ... 80 5.1.2 ... 85 5.1.3 ... 86 5.2 ... 87 5.2.1 ... 87
5.2.2 ... 89 5.2.3 ... 89 5.3 ... 90 5.4 ... 91 5.4.1 ... 91 5.4.2 ... 92 5.5 ... 93 6 3 ... 94 6.1 ... 94 6.2 ... 96 6.3 ... 98 6.4 ... 102 6.5 ... 104 7 3 ... 105 7.1 3 ... 105 7.2 ... 110 7.2.1 ... 110 7.2.2 ... 111 7.3 ... 114 8 ... 115 8.1 ... 115 8.1.1 ... 115 8.1.2 ... 117 8.1.3 ... 120 8.1.4 ... 125 8.1.5 ... 127
8.2 ... 129 8.2.1 ... 129 8.2.2 ... 133 8.2.3 ... 133 8.2.4 ... 135 8.2.5 ... 136 9 ... 138 ... 141 ... 143
1
1
1.1 1997 1998 40 2007 2008 2001 1998 2007 1988 2006 2000 2004 2006a 2006b 2006c 2006d 15 Kondo 2008 11 20122 Kondo 2008 2008a 29 2002 2007 2008b 2006 Negishi et al. 2013 Vaughn and Spooner, 2006
3 1.3 1.3.1 Kondo 1987 1 Kondo 1989 1990 6 1993 195cm Negishi et al. 2009 Pronodularia japanensis 20 10 Kondo 2008 1992 2009 1992 1992 1.3.2 Kondo 1987 2003
4
2003 Klunzinger et al. 2012 Levine et al. 2012
Anodonta woodiana
1986 Obovalis omiensis Anodonta sp.
Inversiunio yanagawensi Lanceolaria grayana
Inversiunio yanagawansis 1997
Unio douglasiae nipponensis
Kondo 1989
2003 2005 Inversiuno
jokohamensis Itoh et al. 2010 Anodonta japonica Akiyama 2011 Itoh
et al. 2008 2010 2013
1.3.3
5
Douglas 1985 Strayer 2008 Kakino et al. 2012 2002 1.3.4 2008 2003 2004 2000 2005
6 1.3.5
1
2 1
7 1.4
8
Monograph of Unionoida in Japan (Mollusca: Bivalvia)
Kondo 2008 3 2013 1.5 Anemina arcaeformis Anodonta spp. 6 Fig.1-1 Kondo 2008 Fig.1-1 A B C D E F
A
E
F
C
D
B
9
2
2.1 Fig.2-1 2005 1 5 200ha 1985 2 1999 Fig.2-1 A B CA
B
C
300m10 2001 7 21 Fig.2-2 1999-2000 RDB RDB IB RDB 2001 2009 2011 2012 2 Fig.2-3 Fig.2-2
11
400m2 0.2m
0.8m 2
30m
2011 Zizania
latifolia Typha latifolia Phragmites australis Oryza sativa
15 Fig.2-4 0.1m 1m2 1×1m 0.3m 15 2009 300m2 100m2 0.24m2 0.4×0.6m 0.1m Fig.2-5 1.12m2 0.8×1.4m 2011 2012 2011 Fig.2-3 A 2001-2008 B 2009-2011 C 2012 -30m 20m
A
B
C
12 2001-2004 2 2005-2006 2 6:00-6:45 14:00-14:45 22:00-22:45 1 135 2007 2008 3 1 11:00-19:00 1 8 2009 1 11:00-19:00 1 8 Fig.2-6 2.0-2.5m 20ha 0.2-0.9m Fig.2-7 Fig.2-5 A B C Fig.2-4 A B C
A
B
C
A
B
C
13 Fig.2-8 2,300m Fig.2-9 2005 Fig.2-6 Fig.2-7 Fig.2-9 Fig.2-8
14 2001
2013 8 28
Lethenteron sp. Anguilla japonica Cyprinus carpio
Carassius cuvieri Carassius sp. Carassius buergeri
buergeri Tanakia lanceolata Rhodeus ocellatus ocellatus
Hemigrammocypris rasborella Opsariichthys platypus
Candidia sieboldii Phoxinus lagowskii steindachneri Phoxinus oxycephalus
jouyi Tribolodon hakonensis Pseudorasbora parva Gnathopogon
elongatus elongatus Biwia zezera Pseudogobio esocinus esocinus
Abbottina rivularis Misgurnus anguillicaudatus Cobitis
biwae Cobitis minamorii tokaiensis Lefua
echigonia Silurus asotus Oryzias latipes
Odontobutis obscura Rhinogobius nagoyae
Rhinogobius flumineus
7 21
2005 2006
Bellamya (Sinotaia) quadrata histrica
Palaemon paucidens 2005
Appasus japonicus
15
5mm
16 2.2 3 2.2.1 2011 7 1 1m2 1×1m 4m2 2×2m 10min/m2 0.5mm 3 11 2008 3 2013 11 19 Table 2-1 2009 3 5 2012 3 2009 2011-2012 2009 7 2012 5 Table 2-1 3 5 7 9 11 2008 2009 2010 2011 2012 2013
17 2 40cm 2mm 90cm 2mm 25×25×40cm 2008 11 2011 11 3 2011 7 200mm 7mm 2.2.2 2008-2010 2010 1 2008 2009 11 2010 4-6 Fig.2-10 10min/m2 0.5mm 2 2010 3
18 4 Fig.2-11 0.5cm 2mm 2mm Fig.2-10 A 2008 B 2009 C 2010
A
B
C
50m 50m 50m Fig.2-11 A B C DA
B
C
D
19 2.2.3 2008 5-10 2013 3 2008 2008 5 10 1 15 2007 7 Fig.2-12 6 Fig.2-12 2007 7 2008 76% 7% 7% 3% 3% 2% 1% 1% N=933
20 Kondo 2008 2003 10% 90% 20-28 200 1986 Kondo 1987 2003 7 2013 2013 3 Kondo, 2008 Kondo, 2008 2.2.4 3 12 Table 2-2 2 21 L Fig.2-13
21 13 1-2 2 Fig.2-13 Table 2-2 2011 9 13 9 27 2012 5 17 5 31 2012 8 23 9 6 2013 6 5 6 19 2012 2 27 3 28 5mm
22 Zale and Neves 1982
Kondo 2008 20cm 30×60×30cm 10 5mm Fig.2-13 25 15 1-2 24 20-28 200 1990
Rogers and Dimock 2003 Itoh et al. 2010 Akiyama 2011 3
23 2.2.5 3 2009 8 2012 9 2009 8 2012 9 NMT 2009 4 300m 600m 900m 1,178m 7 300m 600m 900m 1,200m 1,800m 2,400m 3,000m 11 2012 2,300m 2009 4 1,800m 5 2,300m 10 Fig.2-16 1,178m 2009 50 550 2012 20 200 22 220 20 200 Fig.2-17
24
A
B
Fig.2-16 A 2009 B 2012 2 2,,440000mm 3 3,,000000mm 1 1,,880000mm 1 1,,220000mm 6 60000mm 3 30000mm 3 30000mm 6 60000mm 9 90000mm 1 1,,117788mm 9 90000mm 0m 2 2,,330000mm 1 1,,880000mm 1 1,,220000mm 6 60000mm 3 30000mm 3 30000mm 6 60000mm 9 90000mm 1 1,,117788mm 9 90000mmA
B
120 120 120 Fig.2-17 A 2009 B 2012 C 2012 D 2012 0 60 120 180 20 40 60 80 100 140 0 60 120 180 20 40 60 80 100 140 0 60 120 180 20 40 60 80 100 140 0 60 120 180 25 31 37 43 49 mmA
B
C
D
N=550 N=200 N=220 N=20025 5m Fig.2-18 24 Kondo 2008 25 7 7 2009 3 24 10 Fig.2-18 Fig.2-18 50m
26
3
2008 3 2013 11 19 5 2011 11 1 2009 2011-2012 2009 2011-2012 2009 7 2012 5 2009 7 2011-2012 2012 5 3.1 Fig.3-1 2009 2009 11 2011-2012 2012 5 2011 11 2011 1127 2013 11 Fig.3-1 A 2008 B 2009 - C 2009 -0 300 600 900 1200 1500 1800
Jan. Mar. May July Sept. Nov. 2008 0 300 600 900 1200 1500 1800 Ja n. M ay Se pt . Ja n. M ay Se pt . Ja n. M ay Se pt . Ja n. M ay Se pt . Ja n. M ay Se pt . 2009 2010 2011 2012 2013 0 60 120 180 240 300 Ja n. M ay Se pt . Ja n. M ay Se pt . Ja n. M ay Se pt . Ja n. M ay Se pt . Ja n. M ay Se pt . 2009 2010 2011 2012 2013
A
B
C
28 3.2 1 2008 3 60.0-65.0mm 11 40.0-50.0mm Fig.3-2 10.0-20.0mm mm Fig.3-2 2008 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 10 20 30 40 50 60 70 80 90 100 110 2008.3 N=682 2008.5 N=1,007 2008.7 N=629 2008.9 N=1,002 2008.11 N=582
29 2009 Fig.3-3 2009 7 45.0-50.0mm 2010 5 2008 3 60.0-65.0mm 2009 9 15.0-20.0mm 2010 3 20.0-25.0mm 5 25.0-30.0mm 7 30.0-35.0mm 9 40.0-45.0mm 2010 9 2011 11 2011 3 10.0-20.0mm 2011 3 5 60.0-65.0mm 7 2009 45.0-55.0mm 2011 7 9 40.0mm 10.0-20.0mm 2012 5 50.0-55.0mm 2008 2009-2011 10.0-20.0mm
30 mm Fig.3-3 2009-2013 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 150 300 0 15 30 45 60 75 90 105 0 150 300 0 150 300 0 150 300 0 15 30 45 60 75 90 105 2009.7 N=584 2009.9 N=448 2011.3 N=467 2009.11 N=565 2010.3 N=383 2010.5 N=569 2010.7 N=452 2010.9 N=503 2010.11 N=734 2011.9 N=622 2011.11 N=836 2012.5 N=1,680 2012.11 N=492 2013.11 N=61 2011.5 N=801 2011.7 N=699 2009.7 N=294 2009.9 N=204 2011.3 N=156 2009.11 N=144 2010.3 N=127 2010.5 N=203 2010.7 N=179 2010.9 N=123 2010.11 N=198 2011.7 N=182 2011.9 N=181 2011.5 N=177 2011.11 N=138
31 2 2008 85.0-90.0mm Fig.3-4 2008 3 25.0-40.0mm 60.0-65.0mm 90.0-95.0mm 2 2008 9 50.0-55.0mm 70.0-75.0mm mm Fig.3-4 2008 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 10 20 30 40 50 60 70 80 90 100 115 2008.3 N=197 2008.5 N=147 2008.7 N=128 2008.9 N=133 2008.11 N=109
32 2009 Fig.3-5 2009 7 90.0-95.0mm 2010 7 2011 5-11 2009 7 85.0-90.0mm 2010 7 2012 5 80.0-85.0mm
33 mm Fig.3-5 2009-2013 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 30 60 0 15 30 45 60 75 90 110 0 30 60 0 30 60 0 30 60 0 15 30 45 60 75 90 110 2009.7 N=84 2009.9 N=89 2011.3 N=57 2009.11 N=92 2010.3 N=70 2010.5 N=58 2010.7 N=78 2010.9 N=61 2010.11 N=56 2011.9 N=68 2011.11 N=65 2012.5 N=149 2012.11 N=56 2013.11 N=17 2011.5 N=55 2011.7 N=69 2009.7 N=44 2009.9 N=37 2011.3 N=39 2009.11 N=31 2010.3 N=32 2010.5 N=36 2010.7 N=27 2010.9 N=30 2010.11 N=49 2011.5 N=37 2011.9 N=32 2011.11 N=27 2011.7 N=28
34 3 2008 3 60.0-65.0mm 85.0-90.0mm 60.0-65.0mm 5 7 65.0-70.0mm 9 70.0-75.0mm 11 85.0-90.0mm Fig.3-6 mm Fig.3-6 2008 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 10 20 30 40 50 60 70 80 90 105 120 135 2008.3 N=136 2008.5 N=90 2008.7 N=80 2008.9 N=89 2008.11 N=77
35 2009 Fig.3-7 2009 7 75.0-80.0mm 2010 7 30.0-50.0mm 2011 11 70.0-75.0mm 2011 7 2011 11 2010 2011 2008 2012 5 50.0-55.0mm 70.0-75.0mm 85.0-90.0mm 11 75.0-80.0mm 2013 11
36 mm Fig.3-7 2009-2013 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 25 50 0 15 35 55 75 95 115 140 0 25 50 0 25 50 0 25 50 0 15 35 55 75 95 115 140 2009.7 N=65 2009.9 N=63 2011.3 N=68 2009.11 N=70 2010.3 N=43 2010.5 N=52 2010.7 N=67 2010.9 N=71 2010.11 N=66 2011.9 N=82 2011.11 N=65 2012.5 N=67 2012.11 N=26 2013.11 N=5 2011.5 N=71 2011.7 N=61 2009.7 N=25 2009.9 N=12 2011.3 N=10 2009.11 N=12 2010.3 N=15 2010.5 N=14 2010.7 N=10 2010.9 N=10 2010.11 N=11 2011.7 N=9 2011.9 N=9 2011.11 N=8 2011.5 N=9
37 4 Fig.3-8 3 2008 7 2010 2012 2011 9 25.0mm Fig.3-9 mm Fig.3-8 2008 0 15 30 0 15 30 0 15 30 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 2008.7 N=4 2008.9 N=13 2008.11 N=10
38 mm Fig.3-9 2009-2013 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 15 30 0 10 20 30 40 50 60 70 0 15 30 0 15 30 0 15 30 0 10 20 30 40 50 60 70 2009.9 N=1 2011.3 N=1 2009.11 N=5 2010.3 N=3 2010.5 N=5 2010.7 N=1 2010.9 N=6 2010.11 N=5 2011.9 N=5 2011.11 N=4 2012.5 N=29 2012.11 N=15 2013.11 N=2 2011.5 N=0 2011.7 N=5 2009.9 N=1 2011.3 N=11 2009.11 N=4 2010.3 N=8 2010.5 N=11 2010.7 N=12 2010.9 N=9 2010.11 N=13 2011.7 N=8 2011.9 N=10 2011.11 N=7 2011.5 N=11
39 3.3
2008 2012 11 2008-2009 2009-2010
2010-2011 2011-2012 4
3-5 5-7 7-9 9-11 11-3
Negishi and Kayaba 2009
G % Le mm Li 1 mm G(t) % L(t) t mm L(t-1) t-1 mm T(t) t-1 t 1 Fig.3-10 2009-2010 20.0mm 15.5-19.5mm N=9 178.7% 20.0-40.0mm 21.0-29.0mm N=10 101.8 40.0-60.0mm 40.0-59.5mm N=97 10.8 60.0mm 60.0-73.0mm N=28 4.1 2011-2012 2009-2010
40 mm mm Fig.3-10 A B 0 50 100 150 200 250 0 30 60 90 0 50 100 150 200 250 0 30 60 90 2008.11-2009.11(N=77) R2=0.67 2009.11-2010.11(N=144) R2=0.80 2010.11-2011.11(N=104) R2=0.64 2011.11-2012.11(N=160) R2=0.59 2008.11-2009.11(N=21) R2=0.69 2009.11-2010.11(N=65) R2=0.68 2010.11-2011.11(N=67) R2=0.42
A
B
41 Fig.3-11 7-9 3-5 11-3 9-11 3-5 5-7 11-3 7-9 9-11 mm Fig.3-11 0.00 0.75 1.50 0.00 0.75 1.50 0.00 0.75 1.50 0.00 0.75 1.50 0.00 0.75 1.50 0.00 0.75 1.50 0.00 0.75 1.50 0.00 0.75 1.50 0.00 0.75 1.50 0.00 0.75 1.50 0.00 0.75 1.50 0 30 60 90 0.00 0.75 1.50 0.00 0.75 1.50 0.00 0.75 1.50 0 30 60 90 0.00 0.75 1.50 0 30 60 90 0.00 0.75 1.50 0 30 60 90 2008 2009 2010 2011 3-5 5-7 7-9 9-11 11-3
42 2 Fig.3-12 2009-2010 60.0-80.0mm 61.0-78.5mm N=11 14.4 80.0-100.0mm 80.0-99.0mm N=16 4.5% 2008-2009 2008-2009 2011-2012 2010-2011 2009-2010 Fig.3-13 7-9 3-5 11-3 2008-2009 2009 7-9 2008 2010 2009 9-11 2010 7-9 2011 7-9
43 mm mm Fig.3-12 A B 0 5 10 15 20 25 30 40 60 80 100 120 0 5 10 15 20 25 30 40 60 80 100 120 2008.11-2009.11(N=8) R2=0.34 2009.11-2010.11(N=27) R2=0.61 2010.11-2011.11(N=23) R2=0.59 2011.11-2012.11(N=4) R2=0.55 2008.11-2009.11(N=6) R2=0.58 2009.11-2010.11(N=20) R2=0.60 2010.11-2011.11(N=11) R2=0.56
A
B
44 mm Fig.3-13 0.00 0.15 0.30 0.00 0.15 0.30 0.00 0.15 0.30 0.00 0.15 0.30 0.00 0.15 0.30 0.00 0.15 0.30 0.00 0.15 0.30 0.00 0.15 0.30 0.00 0.15 0.30 0.00 0.15 0.30 0.00 0.15 0.30 0 50 100 150 0.00 0.15 0.30 0.00 0.15 0.30 0.00 0.15 0.30 0 50 100 150 0.00 0.15 0.30 0 50 100 150 0.00 0.15 0.30 0 50 100 150 2008 2009 2010 2011 3-5 5-7 7-9 9-11 11-3
45 3 Fig.3-14 2009 11 2008-2009 2010-2011 60.0mm 53.0-59.0mm N=5 26.9% 60.0-80.0mm 60.0-75.0mm N=15 16.7 80.0mm 82.5-97.5mm N=12 2.3% 2009-2010 2010-2011 2009-2010 2010-2011 2008-2009 2011-2012 Fig.3-15 2008 7-9 9-11 2009 7-9 11-3 3-5 4 2009-2010 39.0mm 42.5mm 9.0 2010-2011 42.5mm 46.5mm 51.0mm 55.5mm 9.4 8.8
46 mm mm Fig.3-14 A B y = 75.784e-0.049x R² = 0.1071 0 5 10 15 20 25 30 35 40 40 60 80 100 120 0 5 10 15 20 25 30 35 40 40 60 80 100 120 2008.11-2009.11(N=17) R2=0.21 2009.11-2010.11(N=27) R2=0.75 2010.11-2011.11(N=32) R2=0.82 2011.11-2012.11(N=10) R2=0.11 2009.11-2010.11(N=3) R2=0.97 2010.11-2011.11(N=6) R2=0.3516
A
B
47 mm Fig.3-15 0.0 0.5 1.0 0.0 0.5 1.0 0.0 0.5 1.0 0.0 0.5 1.0 0.0 0.5 1.0 0.0 0.5 1.0 0.0 0.5 1.0 0.0 0.5 1.0 0.0 0.5 1.0 0.0 0.5 1.0 0.0 0.5 1.0 0 50 100 150 0.0 0.5 1.0 0.0 0.5 1.0 0.0 0.5 1.0 0 50 100 150 0.0 0.5 1.0 0 50 100 150 0.0 0.5 1.0 0 50 100 150 2008 2009 2010 2011 3-5 5-7 7-9 9-11 11-3
48 3.4 2011 7 2011 7 Fig.3-16 13 53% 22 29% 0% 38% 9 4 2013 Fig.3-16 3 0% 20% 40% 60% 80% 100% 0% 20% 40% 60% 80% 100% 0% 20% 40% 60% 80% 100% N=157 22.5 N=62 34.1 N=50 84.7 N=28 100 N=2 40.0 N=8100
49 2008a Table 3-1 2011 7 2003 2008 1-4m2 2011 7 30 /m2 10 /m2 Table 3-1 2011 7 / /m2 30/2.6 9/1.4 5/0.2 5/0.3 2/0.2 2/0.1 1/0.02 3/0.09
50 3.5 3.5.1 90.0-95.0mm 90.0-95.0mm 10.0mm 30.0mm 1986 2003 Akiyama 2011 2009 9 2008 2010 2011 10.0-20.0mm Kondo 2008 5 9 5 2009 7 9 7-9 20.0mm 1.0%/d 7 20.0mm 9 32.0mm
51 7 9 20.0mm 5 11 40.0mm 9 3 5 10.0-20.0mm 2 11 40.0mm 11 40.0mm 2008 2010 2011 10.0-20.0mm 2009 7 2009 2012 10.0-20.0mm 2010 7 30.0mm 2011 9 50.0mm 1 4 Kondo 2008 2013 2010 2011 7-9 2010 7 40.0-44.0mm 0.77-0.90 0.83 %/d 9 65.0-67.0mm 1-4 7 30.0mm 9 50.0mm 2010 7 2011 9
52 2008 60.0-65.0mm 2007 2008 7 9 30.0-50.0mm 2009 2009 2012 2009 2012 1-4 2009 2011 7 2012 5 50 20 1 2008 5 5 2012 2011-2012 2013
53 3.5.2
Kondo, 1992 Negishi and Kayaba, 2009 Zirena et al., 2013
60.0-65.0mm 90.0-95.0mm 85.0-90.0mm 3 2011-2012 2008-2009 2012 Kondo 1992 3 7-9 Kondo 1992 Kondo 1992 2011 7 5-7 Fig.3-18 9-11
54 3.5.3 2013
2012 11 2013 11
Myocastor coypus Corvus sp.
2003 2010 2011 2012 2013 m Fig.3-19 2008 2013 2013 2011-2012 2012 2013 mm Fig.3-18 2011 5 7 A B C 0.00 0.05 0.10 0.15 0.20 0 50 100 150 0 0.1 0.2 0.3 0.4 0.5 0.6 0 50 100 0.00 0.05 0.10 0.15 0.20 0 50 100
A
B
C
55 2010 Fig.3-19 2013 A B C m
A
B
C
56 2013 11
11
Fig.3-20
57 3.6 2009 2011-2012 2011 7 2012 2013
58
4
2008 11 2009 11 2010 4-6 2010 3 1 4 Fig.4-1 2 3 Fig.4-1 A B 1 2 3 4 C 2 3A
B
C
1 2 3 459 4.1 4.1.1 2008 5m 16 1 11 2 1 3 2 4 2 1 3 4 1 2 2009 3 4 3 4 2010 1 4 1 3 4 2 Fig.4-2 4 1 3 3 2-4 /m2
60 No Data *1 2 *2 2009 1 Fig.4-2 1 3 4 1 3 4 1 3 4 34 77 0 187 7 44 300 25 1 7 1 10 1 3 36 11 2 5 0 7 0 0 14 11 1 0 0 0 0 1 0 0 0 0 0 2 0 3 2 0 2009*2 2008 2010 )*1 0.0 1.0 2.0 3.0 4.0 5.0
61 4.1.2 1 Fig.4-3 1 3 4 2008 64.0-114.5mm 2010 73.0-111.0mm 3 2008 50.0-80.0mm 60.0-65.0mm 2009 13.0-80.0mm 2010 14.5-81.0mm 55.0-60.0mm 4 2009 35.0-68.5mm 2010 14.0-69.0mm 3 mm Fig.4-3 0 20 40 60 80 100 0 20 40 60 80 100 0 20 40 60 80 100 0 20 40 60 80 100 0 20 40 60 80 100 0 20 45 70 95 0 20 40 60 80 100 0 20 40 60 80 100 0 20 45 70 95 0 20 40 60 80 100 0 20 45 70 95 2008 2009 2010 4 3 1 N=34 N=44 N=77 N=187 N=300 N=7 N=25 N=0
62 2 Fig.4-4 1 3 4 1 2008 61.0mm 1 2010 56.0-67.5mm 3 2008 14.5-38.5mm 2009 16.5-38.0mm 2010 15.0-39.0mm 2008 2009 30.0-35.0mm 2010 15.0-20.0mm 30.0-35.0mm 4 2008 34.5mm 2009 33.0mm 1 2010 17.5-50.5mm N=1 N=3 N=7 N=10 N=36 N=1 N=11 N=1 mm Fig.4-4 0 3 6 9 12 15 0 3 6 9 12 15 0 3 6 9 12 15 0 3 6 9 12 15 0 3 6 9 12 15 0 3 6 9 12 15 0 15 30 45 60 75 0 3 6 9 12 15 0 15 30 45 60 75 0 3 6 9 12 15 0 15 30 45 60 75 2008 2009 2010 4 3 1
63 3 Fig.4-5 1 2008 33.5mm 50.0mm 2 3 2008 22.0-44.0mm 2009 34.0-45.0mm 2010 19.5-46.0mm 4 2010 19.5-38.5mm 1 mm Fig.4-5 0 3 6 9 12 15 0 3 6 9 12 15 0 3 6 9 12 15 0 3 6 9 12 15 0 3 6 9 12 15 0 3 6 9 12 15 0 15 30 45 60 75 0 3 6 9 12 15 0 15 30 45 60 75 0 3 6 9 12 15 0 15 30 45 60 75 2008 2009 2010 4 3 1 N=0 N=2 N=0 N=5 N=7 N=14 N=0 N=11
64 4 2008 2009 3 35.0mm 34.5mm 2 2010 1 22.5mm 35.5mm 49.0mm 3 3 55.5mm 57.0mm 2 2008 2010 1 37.5mm 87.0mm 4.1.3 2008 11 2009 11 53.0-69.5mm 1.4-4.5 2.2 % Fig.4-6 mm Fig.4-6 2008 11 -2009 11 0 5 10 15 0 50 100 150 N=10
65 4.2 4.2.1 Fig.4-7 2010 1 100m Egeria densa 100m 200m 2 3 5m 3 4 3 2-64mm Fig.4-7 0 2 4 6 8 10 1 51 101 151 201 251 301 351 m
66 4.2.2 4 2 1 9 1 Fig.4-8 Fig.4-9 Fig.4-8 / / 2 49% 21% / 7% / 7% / 5% 4% 2% / 2% / 2% 1% / 0% N=369
67 mm Fig.4-9 0 20 40 60 0 20 45 70 95 0 20 40 60 0 20 45 70 95 0 20 40 60 0 20 45 70 95 0 20 40 60 0 20 45 70 95 0 20 40 60 0 20 45 70 95 0 0 20 45 70 95 20 40 60 0 20 45 70 95 0 20 40 60 0 20 40 60 0 20 45 70 95 0 20 40 60 0 20 45 70 95 0 20 40 60 0 20 45 70 95 0 20 40 60 0 20 45 70 95 N=182 N=78 N=6 N=15 N=24 N=8 N=4 N=26 N=18 N=7 N=1
68 2 Fig.4-10 Fig.4-11 Fig.4-10 / / 2 59% 11% / 8% / 4% / 2% 4% 2% / 2% / 4% 2% / 2% N=49
69 mm Fig.4-11
0
10
20
30
0 20 45
70
0
10
20
30
0 20 45
70
0
10
20
30
0 20
45
70
0
10
20
30
0 20 45
70
0
10
20
30
0 20 45
70
0
0 20
45
70
10
20
30
0 20 45
70
0
10
20
30
0
10
20
30
0 20 45
70
0
10
20
30
0 20
45
70
0
10
20
30
0 20 45
70
0
10
20
30
0 20 45
70
N=29 N=5 N=2 N=2 N=2 N=1 N=1 N=4 N=1 N=1 N=170 3 Fig.4-12 Fig.4-13 Fig.4-12 / / 63% 13% / 8% / 4% 8% / 4% N=24 mm Fig.4-13
0
10
20
30
0 20 45
70
0
10
20
30
0 20 45
70
0
10
20
30
0 20
45
70
0
10
20
30
0 20 45
70
0
10
20
30
0 20 45
70
0 20 45
70
0
10
20
30
0 20 45
70
0
10
20
30
0
10
20
30
0 20
45
70
0
10
20
30
0 20
45
70
0
10
20
30
0 20
45
70
0
10
20
30
0 20
45
70
N=15 N=3 N=1 N=2 N=1 N=271 4 5 1 4.2.3 Fig.4-14 1cm Fig.4-15 rs=-0.79 P=0.00084
Spearman s rank correlation coefficient was performed in R.2.14.2
Fig.4-14 0 2 4 6 8 10 12 0 20 40 60 80 100 120 mm (N=369) (N=49) (N=24) (N=5) (N=1)
72 Fig.4-15 0 20 40 60 80 100 120 0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 10.0 (cm) rs=-0.79
73 4.2.4 8% 13% Fig.4-16 mm Fig.4-16 A B C 0 30 60 90 120 0 15 35 55 75 95 115 0 30 60 90 120 0 15 35 55 75 95 115 0 5 10 15 20 0 10 20 30 40 50 60 70 0 5 10 15 20 0 10 20 30 40 50 60 70 0 5 10 15 20 0 10 20 30 40 50 60 70 0 5 10 15 20 0 10 20 30 40 50 60 70 N=33 N=336 N=4 N=45 N=3 N=21
A
B
C
74 4.3 4.3.1 1 3 4 1 3 4 2 3 4 1 3 4 2008 11 2009 11 60.0mm 4.5% 16.7% Kondo 1992 2010 8 4 5 3 1 30 3 1 1 25 20 Fig.4-17 3 4 1 2011 3 4
75 1 1 3 4 Fig.4-17 1 3 2010 8 4 8 5 0 5 10 15 20 25 30 35 3 1
76 4.3.2 400m 1998 1cm Negishi et al. 2011 0-8cm 10cm 5cm 2cm 3cm Fig.4-18 3 2cm 3cm
77 90 1998 Fig.4-18 2cm 3cm / / 49% 21% / 8% / 7% / 5% 10% N=257
78
Yeager et al. 1994 Villisa iris
1972 Hypriopsis schlegeli
Negishi et al. 2011 20mm
2 2-8cm
4-6
Balfour and Smock 1994 Elliptio complanata
79 4.4
3 4 1
3 4 1
80
5
2008 5-10 2013 3 5.1 5.1.1 2008 5-9 4 Fig.5-1 2006 Table 5-181 Table 5-1 * 31 6 19.4 10 1.7 0.8 89 3 3.4 4 1.3 0.6 35 26 74.3 851 32.7 39.6 39 21 53.8 124 5.9 3.8 52 7 13.5 14 2.0 1.0 61 20 32.8 30 1.5 0.6 307 83 1,033 *±SD Fig.5-1 A B C D
A
B
C
D
82 6 1 5 77mm 185 Table 5-2 568 65.7% 41.0% 10% SD 21.6 ±37.1 3.3 ±3.0 2 200 45.7% 33.3% 10% 10.8 2 31 4 230 1,033
83 Table 5-2 * 31 3 9.7 5 1.7 ±1.2 89 1 1.1 1 1.0 35 23 65.7 497 21.6 ±37.1 39 16 41.0 52 3.3 ±3.0 52 4 7.7 5 1.3 ±0.5 61 6 9.8 8 1.3 ±0.5 307 53 568 *±SD * 31 1 3.2 1 1.0 89 0 0.0 0 0.0 35 16 45.7 172 10.8 ±14.6 39 13 33.3 25 1.9 ±1.0 52 2 3.8 2 1.0 61 0 0.0 0 0.0 307 32 200 *±SD * 31 0 0.0 0 0.0 89 0 0.0 0 0.0 35 2 5.7 2 1.0 39 5 12.8 13 2.6 ±2.6 52 1 1.9 2 2.0 61 11 18.0 14 1.3 ±0.6 307 19 31 *±SD * 31 0 0.0 0 0.0 89 0 0.0 0 0.0 35 0 0.0 0 0.0 39 2 5.1 4 2.1 ±1.4 52 0 0.0 0 0.0 61 0 0.0 0 0.0 307 2 4 *±SD
84 2013 14 60 1,050 2 5 2 27 23 1 8 60 2 1 2 2 1 1 1 Fig.5-2 Fig.5-2
85 5.1.2 Fig.5-3 45% Fig.5-3 94% 4% 1% 1% N=568 98% 1% 1% N=200 45% 23% 16% 10% 3% 3% N=31
86 5.1.3 Fig.5-4 rs=0.465, P=0.034 Spearman was performed in R.2.14.2 mm Fig.5-4 A B C D E F D 0 1 2 3 4 5 0 75 150 0 50 100 150 200 0 75 150 0 5 10 15 20 0 75 150 0 1 2 3 4 5 0 75 150 0 1 2 3 4 5 0 75 150 0 1 2 3 4 5 0 75 150
A
B
C
D
E
F
rs=0.465 N=6 N=4 N=849 N=124 N=11 N=2787 5.2 5.2.1 Table 5-3 6 70.6% 3.3 6.0 Table 5-4 26 5 35.3 6.1% 2.5 3.7 15 41.2 3.0 2 1 16 59 Table 5-3 * 33 2 6.1 2 1.0 77 1 1.3 1 1.0 17 12 70.6 40 3.3 6.0 36 6 16.7 10 1.7 0.8 75 4 5.3 5 1.3 0.5 22 1 4.5 1 1.0 260 *±SD
88 Table 5-4 * 33 2 6.1 2 1.0 77 1 1.3 1 1.0 17 6 35.3 15 2.5 ±3.7 36 2 5.6 3 1.5 ±0.7 75 4 5.3 5 1.3 ±0.5 22 0 0.0 0 0.0 260 15 26 *±SD * 33 0 0.0 0 0.0 77 0 0.0 0 0.0 17 7 41.2 12 1.7 ±1.9 36 1 2.8 3 3.0 75 0 0.0 0 0.0 22 0 0.0 0 0.0 260 8 15 *±SD * 33 0 0.0 0 0.0 77 0 0.0 0 0.0 17 1 5.9 1 1.0 36 1 2.8 1 1.0 75 0 0.0 0 0.0 22 0 0.0 0 0.0 260 2 2 *±SD
89 5.2.2 Fig.5-5 5.2.3 Fig.5-6 mm Fig.5-6 A B C 0 5 10 15 20 25 0 75 150 0 1 2 3 4 5 0 75 150 0 1 2 3 4 5 0 75 150
A
B
C
Fig.5-5 81% 19% N=26 93% 7% N=15 N=40 N=10 N=590 5.3 45 1 1 9 2 58 1 2 10 1 5 4 1 1 7 27 1 6 1 42 1 35 20 9 6 12 35
91 5.4 5.4.1 2013 3 2013 3 2012-2013 Kondo 2008 2003 5 Bauer 1987 Margaritifera margaritifera Salmo trutta Bauer 1987
92 6 5.4.2 Table 5-5 1986 2004 1986 0.2m 3 Table 5-5 1 * 21.6 37.1 1 20 2.5 3.7 10.8 14.6 5 9 1.7 1.9 1 0 0 0 0 0 0 1 11.4 12.0 4 6 2.4 2.1 * SD
93 1m
5.5
94
6
3
6.1
Fig.6-1
95 Fig.6-1 A B C
A
B
C
Fig.6-2 A B CC
B
A
96 6.2 Table 6-1 6 3 9 3 95.3% 88.1% 5% 52.3 2 50.8 44.4 3.8% 30.3% 95.3 44.4 11.9% 4.8 44.4 30.3 88.1 3.8 23.5
97 Table 6-1 % 88 0 88 0.0 39 0 39 0.0 37 743 780 95.3 380 19 399 4.8 51 2 53 3.8 49 0 49 0.0 59 0 59 0.0 592 1 593 0.2 64 0 64 0.0 230 0 230 0.0 33 244 277 88.1 33 1 34 2.9 % 8 0 8 0.0 41 0 41 0.0 69 55 124 44.4 * 41/151 45/156 86/307 52.3/50.8 13 0 13 0.0 26 0 26 0.0 15 0 15 0.0 229 0 229 0.0 32 0 32 0.0 174 0 174 0.0 251 20 271 7.4 4 0 4 0.0 % 57 0 57 0.0 26 0 26 0.0 96 13 108 11.9 53 23 76 30.3 19 3 22 13.6 47 1 48 2.1 35 1 36 2.8 536 4 540 0.7 308 0 308 0.0 456 92 548 16.8 143 44 187 23.5 43 2 45 4.4 *1 /2
98 6.3 Fig.6-3 6-4 6-5 1 1-10 4 6-11 2009 9 8.5 2012 5 8.3 8 1 Fig.6-3 2 1-11 3 9 3 10 1 6-11 2012 8 7.2 2013 6 7.8 Fig.6-4 3 1-24 4-24 12-24 Fig.6-5 14.2
99 d Fig.6-3 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13
100 d Fig.6-4 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13 0 20 40 60 80 100 1 3 5 7 9 11 13
101 d Fig.6-5 0 20 40 60 80 100 1 4 7 10 13 16 19 22 0 20 40 60 80 100 1 4 7 10 13 16 19 22 0 20 40 60 80 100 1 4 7 10 13 16 19 22 0 20 40 60 80 100 1 4 7 10 13 16 19 22 0 20 40 60 80 100 1 4 7 10 13 16 19 22 0 20 40 60 80 100 1 4 7 10 13 16 19 22 0 20 40 60 80 100 1 4 7 10 13 16 19 22 0 20 40 60 80 100 1 4 7 10 13 16 19 22 0 20 40 60 80 100 1 4 7 10 13 16 19 22 0 20 40 60 80 100 1 4 7 10 13 16 19 22 0 20 40 60 80 100 1 4 7 10 13 16 19 22 0 20 40 60 80 100 1 4 7 10 13 16 19 22
102 6.4
6
3 3
9
Rogers and Dimock 2003
Dodd et al. 2005 2014
Rogers and Dimock,
2006 Rogers and Dimock 2003
95.3% 88.1 0 Strayer, 2008 Kondo 1989 2010 Kondo 1989 7 Zacco temmincki Candidia temminckii
103 Kondo 1989 8 1 7 Kondo 1989 2010 19 2003 2003 2010 Kondo 2008 Anodontini Strayer 2008 2 Neves et al. 1985 Bauer 1994 Kondo 1989 Kondo 2008
104 156 183 m 209 215 m
392 398 m
Bauer 1994
Neves 1985 Kondo 1989
Levine et al. 2012 Popenaias
popeii 31 8 24 2003 11 6.5 12 3 6 3 9 95.3% 52.3% 30.3% 5 8
105
7
3
2009 2012 5 6 1994 7.1 3 2012 1 2009 7 39 7% 3 39 3 8% 23 7% 16 8% 3,000m Fig.7-1 1,800-3,000m 4 2,300m ±SD 247.9 ±155.3 m/d 207.8 ±158.5 m/d U=147 P=0.295 Mann-Whitney U-test 600m/d Table 7-1 rs 0.559 P performed in R.2.14.2106 Fig.7-2 Table 7-1 m 1 2 3 4 5 6 7 1,178 1 2 3 900 3 1 1 5 600 1 1 2 300 1 2 1 2 6 300 1 2 1 2 6 600 1 1 2 900 1 3 1 2 7 1,200 1 1 1 3 1,800 1 1 1 3 2,400 2 2 0 4 12 6 8 7 2 39 Fig.7-1 0 2 4 6 8 m 0m N=23 N=16
107 2 7 6 3% 4 2 300 900 1,800m 900 1,178m Fig.7-3 ±SD 225.0 ±86.6 m/d 248.2 ±73.3 m/d 900m 300m/d Table 7-2 3 7 4 2% 2 300m 300 600m Fig.7-4 ±SD 125.0 ±35.4 m/d 67.5 ±10.6 m/d 300m A N=23 B N=16 Fig.7-2 A B A 0 100 200 300 400 500 600 700 0 30 60 90 120 150 m /d mm 0 100 200 300 400 500 600 700 0 30 60 90 120 150 m /d mm rs=0.559
A
N=23B
N=16108 150m/d Table 7-3 Table 7-2 m 1 2 3 4 5 6 7 1,178 1 1 900 1 1 600 0 300 0 300 1 1 600 0 900 1 1 2 1,200 1 1 1,800 0 2,020 0 0 1 2 0 0 3 0 6 Fig.7-3 0 2 4 6 8 m 0m N=4 N=2
109 Fig.7-4 0 2 4 6 8 m Table 7-3 m 1 2 3 4 5 6 7 1,178 0 900 0 600 0 300 1 1 2 300 1 1 600 1 1 900 0 1,200 0 1,800 0 2,020 0 0 1 0 1 1 1 0 4 0m N=2 N=2
110 7.2 7.2.1 Fig.7-5 y=exp(6.50+0.06x) y=exp(5.95+0.21x) y=exp(5.17+0.17x) d Fig.7-5 A N=39 B N=6 C N=4 1 3 5 7 300 600 900 1200 1500 1800 2100 2400 1 3 5 7 300 600 900 1200 1500 1800 2100 2400 1 3 5 7 300 600 900 1200 1500 1800 2100 2400
A
B
C
111 7 1,040m 1,669m 578m 2 7.2.2 2009 2012 2012 2009 2009 2012 Table7-4 1996 2009 8 2012 9 2012 2006
112 Table 7-4 2009 * 2012 8/13 8/14 8/15 8/16 8/17 8/18 8/19 8/20 8/21 8/22 8/23 8/24 8/25 1 1 2 1 2 5 1 6 16 6 21 4 5 13 10 3 9 94 20 13 10 14 24 11 2 2 19 4 13 3 3 138 8 33 120 65 77 95 9 8 70 17 49 3 554 13 29 87 47 78 71 15 4(204) 51 14(328) 19 32 7(114) 467(646) 10 4 3 2 1 11 7 5 2 3 3 5 56 3 10 8 16 12 3 5 1 4 5 2 5 74 2 4 6 4 2 4 2 7 1 1 2 35 9 4 10 2 3 9 2 16 1 14 22 92 1 6 4 4 5 2 22 1 1 1 2 1 6 0 2 2 2 2 7 7 5 5 5 6 6 5 8 4 6 5 3 39 56 103 81 97 94 44 24 89 27 44 63 28 * 9/6 9/7 9/8 9/9 9/10 9/11 9/12 9/13 1 1 5 12 18 7 15 4 4 20 85 47 23 25 35 17 18 9 22 196 16 11 19 14 14 48 11 10 143 12 9 4 3 2 7 1 92 5 5 3 8 3 3 17 8 8 13 3 6 1 13 52 3 5 3 17 12 2 8 3 53 2 1 3 6 1 1 1 3 3 1 8 1 1 1 3 2 3 9 3 3 4 3 1 2 16 7 6 2 5 3 5 7 5 37 38 21 44 27 18 31 30
113 3 2008 1988 2006 2005 3 2009 2,300m Watters 1996 Douglas 1985
114 7.3
550 39 220 6 200 4
7
115
8
8.1 8.1.1 5 6 1 6 ±SD 65.7% 21.6 ±37.1 41.0% 3.3 ±3.0 10% 2 6 3 95.3% 4.8% 3.8% 6 6 Fig.6-3 2116 45.7% 33.3% SD 10.8 14.6 1.9 1.0 44.4 50.8-52.3% 3 2013 6 3 12 9 30.3 23.5 16.8 13.6 11.9 5 4 31 2003 11 3
117 2010 Klunzinger et al. 2012 8.1.2 2001 7 2002 6 2003 2 2005 4 2008 7 2005 4 2006 2005 4 1,146 33 2 2006 Fig.8-1 30.0-44.0mm 45.0mm 20.0-30.0mm 40.0-50.0mm
118 2005 4 45.0mm 2003 30.0-44.0 mm 2003-2004 29.0mm 2004 Kondo 2008 2 30.0mm 2011 7 31.0mm 11 30.0mm 1 2 2002 2003 81.0mm 45.0mm 45.0mm 81.0mm 45.0mm Kondo 2008 2 40.0mm Fig.8-1 2005 4 2006 A B 0 200 400 600 800 1000 29 30 44 45 mm 0 1 2 3 4 25 30 35 40 45 50 55 60 65 70 75 80 85 mm N=1,146 N=33
A
B
119 2005 4 45.0mm 2003 2003 2003 45.0mm 2005 4 2 48.0mm 75.0mm 48.0mm 2004 75.0mm 2003 2008 7 4 19.5 44.5 57.0 62.5mm 3 Fig.3-8 Kondo 2008 2 30.0mm 2 2002 2003 2003 2003 2006 2002 2003 2004 Table 8-1 2002
120 100 2003 100 2004 2003 2003 2003 8.1.3 2009 2012 2008 2011 7 Table 8-1 2001 2002 2002 2003 2004 2001 2002 2003 7/27 8/10 10/19 6/14 6/17 0 2 0 0 0 1 2 0 26 37 6 10 1 7 9 13 3 0 0 4 1 1 1 9 7 1 4 0 5 8 4 4 2 41 27 1 0 0 0 0 1 0 0 0 0 *1 11 0 0 0 0 *2 0 1 0 0 10 *1 *2
121 Fig.8-2 8-3 8-4 2008-2011 2009 2011 9 1.5 /m2 2011 9 2009
122 Fig.8-2 2011 7 A 2008 B 2009 - C 2009 -0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2008.5 2008.7 2008.9 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2009.7 2009.9 2010.5 2010.7 2010.9 2011.5 2011.7 2011.9 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2009.7 2009.9 2010.5 2010.7 2010.9 2011.5 2011.7 2011.9
A
C
B
123 Fig.8-3 2011 7 A 2008 B 2009 - C 2009 -0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2008.5 2008.7 2008.9 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2009.7 2009.9 2010.5 2010.7 2010.9 2011.5 2011.7 2011.9 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2009.7 2009.9 2010.5 2010.7 2010.9 2011.5 2011.7 2011.9
A
C
B
124 Fig.8-4 3 2008 2009 2008 2010 2011 Fig.8-4 3 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 2008 2010 2010 2011 2011
125 2010 2006a 2000 2012 7 9 15 2013 2012 2009 2012 8.1.4
126 2003 2003 Fig.8-5 2004 2011-2012 Fig.8-5
127 2008-2009 2011-2012 2009 2012 2009 2009 2011-2012 2009 3 25 5 30 2009 2011-2012 2011-2012 8.1.5 2008 2008
128 3 4 1 10.0mm 400m 1 3 3 4 1 4 1 1
129 8.2
8.2.1
130
2009
1 2
2008a Downing et al. 1993
Elliptio complanata 10 /m2
40 /m2 100%
2011 7 30 /m2
131 10 /m2 1 /m2 8 1.5 /m2 1.5 /m2 0.2m 2006 2005 2005 2004 2005
132 2010
1972
133 8.2.2 7 1,040 1,669m 578m 1,000m Kondo 2008 2013 8.2.3
134 1cm 1cm 3 1976 2006 2008 2004 2007
135 8.2.4 2006 2007 Margaritifera laevis 1998 1 1998 2009 2011-2012 2009
136 8.2.5 2 Kondo 2008 Strayer 2008 1 1
138
9
15 11 3 2009 2011-2012 2011 7 2012 2013 4 2008 11 2009 11 2010 4-6139 1cm 5 2008 5-10 2013 3 2008 2013 6 6 3
140 3 6 3 9 95.3% 52.3% 30.3% 7 3 5 6 550 39 220 6 200 4 7 1,040m 1,669m 578m 8
141
4 6
142
NPO
143
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