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ᕷⵦ⏕ᖸ₲ࡢὠἼ⿕⅏ࡢࡑᚋࡢᆅᙧᅇ㸨�
�
ᮾᏛᏛ㝔ᕤᏛ◊✲⛉ᅵᮌᕤᏛᑓᨷ� � ⏣୰� ோ�
ᮾᏛᏛ㝔ᕤᏛ◊✲⛉ᅵᮌᕤᏛᑓᨷ����� � � � �����ᡞ㒊భኴ ᮾᏛᏛ㝔ᕤᏛ◊✲⛉ᅵᮌᕤᏛᑓᨷ Mohammad Bagus Adityawan
�
�㸬 ࡌࡣ�
� ᾏᓊࡅ࠾ᆅᙧⓗ≉ᚩࡣࡘࡢ㸪Ἑ࿘㎶ࢢᆅᙧࡀከࡃぢⅬ࠶㸬㜿Ṋ㝰ᕝἙࡢ
㫽ࡢᾏ㸪 ᕝἙࡢᡞᾆᗈᾆ㸪⏣ᕝἙ⨨ࡍⵦ⏕ᖸ₲ࡢࡑࡀ࡞௦⾲ⓗ࡞࠶㸬ࡇ
ᚋ㸪ࡢࡑ㸪ࡆ᭤ୗᡭ᪉◁⁻ࡀὶ㊰ࡢἙ㒊༟㉺ࡢ◁⁻㸪ἢᓊ࠾ࡋඹ㏻ࡣᙧᡂせᅉࡢỈᇦࡢ
ேᕤⓗ࡞Ἑ㛤⨨ࡢᅛᐃ௨๓ࡢὶ㊰ࢢࡀᆅᙧᙧᡂ࠶ࡢࡓࡋ 1)㸬ࡢࡇỈᇦࡣ㈗㔜
࠸ࡉ࡞ࡀㄪᰝࡢỈ㉁⏕ែ⎔ቃ࡞ヲ⣽ࡇ㸪࠾ࡋᙧᡂỶỈ⎔ቃ࡞ 2)㸬ࡓ㸪‴Ỉᇦ࠾
Ἑ㨶ᮇ⛶ࡀ⣙ࡓࡉࡆ㸪Ỉᥭࡤศᯒࡢ▼⪥ࡢࢩ࠶※᭷⏝⁺ᴗ㈨ࡅ ỶỈᇦ⏕
⫱ሙ࠾ࡋ㸪ỶỈᇦࡢỈ⏘㠃ࡢ㔜せᛶࡀᣦ࠸ࡉ 3)㸬
� 2011 ᖺ 3 ᭶ 11 ᪥Ⓨ⏕ࡓࡋᮾ᪥ᮏ㟈⅏ὠἼࢢࡢࡇࡣᆅᙧἙᆅᙧࡃࡁኚᐜࡓࡏࡉ 4)㸬
㸪ぢࡀẁ㝵ᆅᙧᅇ࠸᪩ࡣἙᕝ࠶㸪࠾ࡗ࡞␗ࡃࡁἙᕝẖࡣᆅᙧኚࡢᚋࡢࡑ ᪉㸪ࡃἙ
ᆅᙧࡢᅇࡀぢ࠸࡞Ἑᕝ࠶ 5)㸬ࡕ࠺ࡢࡇ㸪ⵦ⏕ᖸ₲ࡢᏑᅾࡍ⏣ᕝࡢᆅᙧࡣ㸪⌧ᅾ㸪௨๓㏆
ࡢ㸰᭶ࡣࡓ㸯᭶Ⓨ⏕๓ࡢ㸪ὠἼࡣ࠸࠾✲◊㸪ᮏࡇࡑ㸬࠸ゝ࠶ࡘࡘᡠ≦ᙧ࠸
㛫㝸࠺࠸ᴟ㧗㢖ᗘᙳ࠸ࡉ✵୰┿࠸⏝㸪ⵦ⏕ᖸ₲ᆅᙧࡢᅇ㐣⛬㸪ࡀࡑࡧ࠾౫↛ᢪ
�㸬ࡓࡋၥ㢟Ⅼ࠼
�㸬 ⵦ⏕ᖸ₲ࡢᴫせ�
� ᅗ�� Ꮡᕥᓊࡢ㸪⣭Ἑᕝ⏣ᕝἙࡋ⨨ᕷⵦ⏕ᆅඛࡣ₲㸬ⵦ⏕ᖸࡓࡋ♧ᴫせࡢ₲ⵦ⏕ᖸ
ᅾࡍ㸬⏣ᕝࡣ⌧Ἑ㏆
⣙ࡃ 1km ࡋ‴ὀ࠸
ἢᓊ⁻◁༟㉺ࡓࡋඛ㏙ࡣࡇ㸬ࡓ࠸
᪉ࡀ༡࠶ࡓ࠺㸬
40 ᖺ௦ ࡢᘓタࡀጞ㸪
㸪ᑟὶሐษ⥾ᪧἙ࠸కࡇ
ࡑ㸬ࡓࡉᅛᐃ⨨⌧ࡣἙ
ⵦࡀἙ㐨㒊ࡓ࠸ࡋࡢ㸪௨๓ࡋ
⏕ᖸ₲ࡋṧࡓࡉ㸬
�㸬 ⵦ⏕ᖸ₲ࡢᆅᙧኚ�
(1) ᮾ᪥ᮏ㟈⅏ὠἼ௨๓ࡢᆅᙧኚ ���!#"�!�!��������� ���!�����!����!! ��&��%!� %���������$&� ���� ���%$����!'�#)�� �%!$����� ������&%����%!���� ��
�!���������&$���%)�(� �
ᅗ-1� ⵦ⏕ᖸ₲ࡢᴫせ
NanakitaRiver
Sendai Port
Gamo Lagoon
N
0 1km
Sendai Bay
JAPAN
SENDAI .
東北地域災害科学研究 第50巻(2014) 175
ⵦ⏕ᖸ₲ࡣ㸪㧗ἼᾉἼ◁ࡀ㉺࠼ᅵ◁ࡢὶධࡍࡓ 6)㸬ࡇ㸪ᖸ₲ࡢὸࡀ㢧ᅾࡋ
㸪ᖹᡂࡓࡔ㐍ࡀᝏ㸪ᖸ₲ෆỈ㉁⎔ቃࡓ㸬ࡓ 17 ᖺࠕⵦ⏕ᖸ₲⮬↛⏕༠㆟ࡀ⤖ᡂࡉ㸪ࡑ
㸬ࡓ㐍ࡀ࡞ᘓタࡢ㉺Ἴ㜵Ṇሐ๐᥀ࡢ➽⃢༠㆟ࡢࡇ
ᅗᅗ���D�ࡣὠἼ᮶く๓ࡢἙᆅᙧ࠶㸬ᾏᓊࡣࡀ◁⁻ࡍ༟㉺ࡋ㸪ࡓࡢࡇ⏣ᕝἙ
➃ᕥࡢ㸪Ἑ㛤㒊ࡓࡢࡇ㸪࠾ࡉᘓタࡀᑟὶሐố⥺㒊ࡣ㸬ᕥᓊ࠶㢧ⴭࡀⓎ㐩ࡢᓊ◁ᕞࡣ
㸬ㄆࡀ㉺ὶ㜵Ṇሐࡣ㒊◁ࡢ㸬┿ᕥഃ࠸࡞ࡣࡇ࠼㉺⨨ࡢᑟὶሐࡢࡇࡣ
(2) ᮾ᪥ᮏ㟈⅏ὠἼᆅᙧኚ ᅗ���E�ࡣ 2011 ᖺ 3 ᭶ 12 ᪥ࡢὠἼ᮶く┤ᚋࡢἙᆅᙧ࠶㸪ࢢᆅᙧࡀᾘኻࡋ㸪ᓥ≧ศࡓࡉ
ᆅᙧࡀṧ࠸ࡉ㸬ࡓ㸪௨๓ࢢࡢෆࡢ◁ࡅ࠾ሁ✚ࡀㄆ㸬Ἑᕥᓊᾏഃࡣ๓㏙ࡢᑟὶ
ሐࡀぢ㸪≉ᕥᓊᾏࡢố⥺ࡢᚋ㏥ࡀ㢧ⴭ࠶㸬
(3) ᮾ᪥ᮏ㟈⅏ὠἼᚋࡢᆅᙧᅇ 㸪ẚ⨨Ἑ◁ᕞᙧᡂࡢὠἼ᮶く๓ࡢ�D���㸬ᅗࡓࡋⓎ㐩ࡀἙ◁ᕞᵝࡢ�G���F�㸪ᅗ���ᚋ㸪ᅗࡢࡑ
Ἑᕝὶ㐳ࡓࡗ⟠ᡤ◁ᕞⓎ㐩ࡀぢⅬࡀ࡞ࡁ≉ᚩ࠶㸬 ᵝࡣ㇟⌧࡞ࡢἙᕝ࠸࠾ぢ
࠸ 5), 7)㸬ὠἼἙ㒊ࡀὙᇼࡉ㸪Ἑෆ㒊㐍ධࡓࡋἼᾉ㸪ᅗ���F�㸪ᅗ���G�ࡢᵝ࡞◁ᕞ
࠼⪄ࡢࡓࡌ⏕ࡀᙧᡂࡢ 7)㸬
ᚋ㸪2011ࡢࡑ ᖺ 8 ᭶ 10 ᪥ࡣ⌧ᆅ࠸࠾Ἑ㛢ሰࡀ☜ㄆ࠸ࡉ㸬㛢ሰᚋࡢ✵୰┿ᅗ���H�♧
ࡣ࠸࠾㸬⏣ᕝࡍ 1990 ᖺ௦Ἑ㛢ሰࡀ㢖⦾Ⓨ⏕ࡓࡋ 1)㸬ḟࡢἙ㛢ሰᚋ⏣ᕝἙᕝὶࡣ
㈆ᒣ㐠Ἑ㏻ࡌᕝὀࡔ࠸㸬ࡓࡢࡇ㸪Ἑᕝࡢ⮬ᕫὶ㔞ሁ✚◁ࡎࡌ⏕ࡣࢩࡢ㸪ᅗ���H�
㸬ࡓࡓែಖ≦ࡓࡋᏳᐃࡀᆅᙧࡓࡋ♧
2011ᖺ9᭶22᪥㢼15ฟỈࡓࡌ⏕ࡀ㸬ࡓࡢࡇ㸪ᅗ���I�ぢ࠺௨๓ࡢⵦ⏕ᖸ₲ዟ
㒊ᑐᛂࡍ⟠ᡤ◁ࡢ breaching ᭤Ἑ㐨‴ὶⵦ⏕ᖸ₲ෆࡢ㸬௨๓ࡓࡉᙧᡂࡀἙ࡞ࡓ㸪᪂ࡌ⏕ࡀ
ᆅᙧࡣ㸪ὥỈỈࡆࡁࡏỈᏳᗘࡢపୗ㸪ࡧ࠾ᖸ₲ࡢỶỈ⎔ቃ႙ኻࡢၥ㢟ᢪࡓ࠸࠼㸬ࡢࡑ
㸪2012ࡓ ᖺ 3 ᭶᪪㸪ⵦ⏕ᖸ₲⏣ᕝᮏᕝ㝸ᑟὶሐᔞࡓࡋࡆ㸪௨๓ࡢἙ㛤㒊ࡢ
⨨ேᕤ㛤๐ࡓ⾜ࡀ㸦ᅗ���J�㸧㸬᥀๐ᅵࡣἙᕥᓊࡓ❧┒㸬ࡢࡑᚋ㸪9᭶ࡢฟỈᙧᡂ
K�㸧㸬���㸦ᅗࡓࡋᏳᐃࡀἙሙᡤࡌࡢ㸪ὠἼ᮶く๓ࡋ㛢ሰࡣ㛤㒊ࡓࡉ
ᅗ���L�ࡣኟᏘᙳ࠶ࡢࡓࡉ㸪ὶ㔞ࡢቑຍ⏣ᕝἙᖜࡀቑ࠸ࡋ㸬ࡢࡑᚋ㸪⛅Ꮨ㸪
ᏘࡣἙᕝὶ㔞ࡀῶᑡࡋ㸪Ἑᖜࡀᴟ➃ῶᑡࡍ㸦ᅗ���M�㸪ᅗ���N�㸪ᅗ���O�㸧㸬࠾࡞㸪ᅗ���N�
㸪ሷศ࠾ࡗ࡞ἣ≦ࡍὶධෆࢢ᥋ⓗ┤ࡀሷỈࡢ㸪ᾏᇦࡉቯ◚ࡀ㒊ࡢ㸪ᕥᓊᑟὶሐࡤ
㸬ࡉ༴ࡀኚࡢែ⣔⏕࠺కࡑࡢ
ḟ㸪ⵦ⏕ᖸ₲Ỉᇦࡢᙧ≧ࡣ࠸ࡘᅗ���F�௨㝆㸪࡞ࡁኚࡣぢ࠸࡞ᵝ࠶㸬ࡇࡑ㸪ࡢࡇⅬ
☜ㄆࡓࡍ㸪ᅗ��ᾏᓊࡢࢢࡧ࠾Ỉ㝿⥺ㄞ㸪ᅗࡢࡓࡋᅗࡍ♧��㸬ᅗ��
㸪6ࡣ࠸ࡘ⥺Ỉ㝿ࡢෆࢢ㸬᪉㸪ぢࡀᅇࠎᚎᚋࡓࡋ㸪ᗘᚋ㏥ࡣ࠸ࡘ⥺㸪ốࡤ
᭶ 8 ᪥௨㝆㸪ኚࡣぢ࠸࡞㸬ᅗࡣ��㸪ᅗࡓࡋ♧�� ⥺ L1㸪L2 ࢢ㸪ố⥺⨨㸪࠸ࡘ
ෆỈ㝿⨨ࡍ♧㸬ࡇࡇ㸪ᾏᓊ⥺ࡣ࠸ࡘᖹᆒⓗ࡞ᾏ໙㓄₻⿵ṇ࠸⾜㸪T.P.0mᇶ
㸬ࡍ♧⨨ố⥺ࡃ ࡢࡑ⥺Ỉ㝿ࡓᚓ┿㸪✵୰࠶ᅔ㞴ࡀṇ⿵࡞࠺ࡢࡇࡣ࠸ࡘෆࢢ
㸬࠸ࡋ♧ ㏙ࡢ㏻㸪ố⥺ࡢᅇࢢෆࡢᏳᐃࡓࡋỈ㝿⨨☜ㄆࡀࡇࡍฟ᮶㸬ࡋࡔࡓ㸪
ố⥺ࡣ࠸ࡘ౫↛ኚࡀぢ㸪᪂࡞ࡓᖹ⾮≧ែ㑄⛣࠸ࡋ㏵࠼⪄㸬
176
(a) 2011ᖺ3᭶6᪥
(b) 2011ᖺ3᭶12᪥㸦ᅜᅵᆅ⌮㝔㸧
(c) 2011ᖺ6᭶8᪥
(d) 2011ᖺ7᭶6᪥
ᅗ-2� ⵦ⏕ᖸ₲ࡢᆅᙧኚ㸦ࡢࡑ㸯㸧
177
(e) 2011ᖺ9᭶7 ᪥
(f) 2011ᖺ9᭶24᪥
(g) 2012ᖺ3᭶14᪥
(h) 2012ᖺ4᭶8᪥
ᅗ-2� ⵦ⏕ᖸ₲ࡢᆅᙧኚ㸦ࡢࡑ㸰㸧
178
(i) 2012ᖺ7᭶4᪥
(j) 2012ᖺ9᭶7᪥
(k) 2013ᖺ1᭶12᪥
(l) 2013ᖺ3᭶4᪥
ᅗ-2� ⵦ⏕ᖸ₲ࡢᆅᙧኚ㸦ࡢࡑ㸱㸧
179
ᅗ-3� ⵦ⏕ᖸ₲㏆ࡢố⥺⨨ࡢኚ� � � � � � ᅗ-4� ⵦ⏕ᖸ₲㏆ࡢố⥺⨨Ỉ㝿⨨ࡢኚ
ᅗᅗ�� ��ᅗࡣ ࢢ┿୰✵ࡓࡋ♧
Ỉᇦࡢ㠃✚ㄞ࠶ࡢࡓࡗ㸬 ㏙ࡢ₻
ኚ࠼⪄ቑῶࡣぢ
ࡀῶᑡࡢ✚Ỉᇦ㠃ࡢ⛬%40ẚ㸪௨๓ࡢࡢ
ぢ㸪 ㏆ࡣᏳᐃࡓࡋ㠃✚ᙧ≧⥔
ᣢࡀࡇ࠸ࡋศ㸬
�㸬 ࠾�
� ᮾ᪥ᮏ㟈⅏ὠἼ࡞ࡁ⿕⅏ࡅ
ᯝ㸪⤖ࡢࡑ㸬ࡓࡗ⾜ウࡍ㛵⛬ᆅᙧᅇ㐣ࡢᚋࡢࡑ࠸⏝┿㸪✵୰㇟ᑐ₲ᕷⵦ⏕ᖸࡓ ࢢ
Ỉᇦ㠃✚ࡢῶᑡ㸪ố⥺ࡢኚ㐣⛬ࡀࡓࡗ࡞㸬ᖸ₲ෆࡢ⏕ែ⣔ࡢᅇ࡞࠺ࡢࡇࡣᆅᙧࡢᅇ㐃
�㸬࠶ࡀᚲせぢᏲࡃ῝ὀព⛬㐣⾜⛣ࡢᖹ⾮≧ែ࡞ࡓ㸪᪂ࡋ⥆⥅ࢢࢱࢽ㸪ᚋࡢ࠸ࡋ�ㅰ㎡㸸ᮏ◊✲ᑐࡋ㸪�㈈�Ἑᕝ⎔ቃ⟶⌮㈈ᅋἙᕝഛᇶ㔠㸪ᮾᘓタ༠ᘓタᴗ㛵ࡍᢏ⾡㛤Ⓨᨭ㸪
㸬ࡍ⾲ㅰព࡞⏒῝ࡋグࡇࡇ㸬ࡓࡅຓᡂࡢࢺࢡࢪ✲◊ᮾᏛ≉ᐃࡧ࠾
�ཧ⪃⊩�
1) ⏣୰� ோ: ⏣ᕝ࠸࠾ほ ࡓࡉ୰ᑠἙᕝ≉᭷ࡢἙ⌧㇟, ᅵᮌᏛㄽ㞟, ➨ 509 /ϩ-30, pp.169-181,
1995.
2) ᰩཎ� ᗣ: ᖸ₲࠸ࡁ⏕ࡣ㸪ᒾἼ᪂᭩㸪219p.
3) Yamashita, Y., Otake, T. and Yamada, H.: Relative contributions from exposed inshore and estuarine nursery grounds to the
recruitment of stone flounder, Platichthys bicoloratus, estimated using otolith Sr:Ca ratios, Fisheries Oceanography, Vol.9,
No.4, pp.316-327, 2000.
4) ⏣୰� ோ ┿㔝� ᭷ാᜨᏊ: 2011ᖺᮾᆅ᪉ኴᖹὒἈᆅ㟈ὠἼᾏᆅᙧኚ, ᅵᮌᏛㄽ㞟B2㸦ᾏ
ᓊᕤᏛ㸧, Vol. 67, No.2, pp.I_571-I_575, 2011.
5) ᖹᑿ㝯ኴ㑻⏣୰� ோᱵ⏣� ಙ Nguyen Xuan Tinh Eko Pradjoko ┿㔝� ᭷ാᜨᏊ: ᮾ᪥ᮏ㟈⅏ὠἼᚋ
.ၥ㢟Ⅼ, ᅵᮌᏛㄽ㞟B1㸦ỈᕤᏛ㸧, Vol.68, No.4, pp.I_1735-I_1740, 2012ᚩ≉ࡢἙᆅᙧኚࡢ
6) ᖹᑿ㝯ኴ㑻Nguyen Xuan Tinh⏣୰� ோ: ࡢ㉺Ἴᾏኚᙧᑐ⟇ᕤࡢຠᯝࡢド, ᅵᮌᏛ
ㄽ㞟B2㸦ᾏᓊᕤᏛ㸧, Vol. B2-66, No.1, pp.526-530, 2010.
7) ⏣୰� ோMohammad Bagus Adityawan├� ᩄVo Cong Hoang: ᮾ᪥ᮏ㟈⅏ὠἼᚋࡢἙ◁ᕞἙ㐨ෆධ⌧
㇟, ᅵᮌᏛㄽ㞟B2㸦ᾏᓊᕤᏛ㸧, Vol. 69, pp.I_616-I_620, 2013.
0 200 400 600 8000
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180