干潟に堆積する有機物の起源およびバクテリアによる利用性 [in Japanese] Origin and Bacterial Utilization of Organic Matters in Tidal-Flat Sediment [in Japanese]
-
- WOO-SEOK SHIN SHIN WOO-SEOK
- 東北大学大学院工学研究科 Graduate School of Engineering, Tohoku University
-
- 藤林 恵 FUJIBAYASHI MEGUMU
- 東北大学大学院工学研究科 Graduate School of Engineering, Tohoku University
-
- 長濱 祐美 [他] NAGAHAMA YUMI
- 東北大学大学院工学研究科 Graduate School of Engineering, Tohoku University
-
- 野村 宗弘 NOMURA MUNEHIRO
- 東北大学大学院工学研究科 Graduate School of Engineering, Tohoku University
-
- 西村 修 NISHIMURA OSAMU
- 東北大学大学院工学研究科 Graduate School of Engineering, Tohoku University
Access this Article
Search this Article
Author(s)
-
- WOO-SEOK SHIN SHIN WOO-SEOK
- 東北大学大学院工学研究科 Graduate School of Engineering, Tohoku University
-
- 藤林 恵 FUJIBAYASHI MEGUMU
- 東北大学大学院工学研究科 Graduate School of Engineering, Tohoku University
-
- 長濱 祐美 [他] NAGAHAMA YUMI
- 東北大学大学院工学研究科 Graduate School of Engineering, Tohoku University
-
- 野村 宗弘 NOMURA MUNEHIRO
- 東北大学大学院工学研究科 Graduate School of Engineering, Tohoku University
-
- 西村 修 NISHIMURA OSAMU
- 東北大学大学院工学研究科 Graduate School of Engineering, Tohoku University
Abstract
本研究では干潟に堆積する有機物のバクテリアによる利用性について、安定同位体比および脂肪酸組成を用いて有機物の起源別に解析した。堆積有機物および食物源候補である陸上植物、海洋粒状有機物、河川粒状有機物および底生微小藻類は、蒲生干潟および七北田川河口より採取した。安定同位対比により陸上植物（δ<sup>13</sup>C = －26.6、δ<sup>15</sup>N ＝ 3.6）および河川粒状有機物（δ<sup>13</sup>C = －25.5、δ<sup>15</sup>N ＝ 8.9）は、底生微小藻類（δ<sup>13</sup>C = －16.3、δ<sup>15</sup>N ＝ 6.2）および海洋粒状有機物（δ<sup>13</sup>C = －20.3、δ<sup>15</sup>N ＝ 10.3）と明確に区別できた。50日間の堆積有機物の分解実験において、堆積有機物のδ<sup>13</sup>C値は－19.1 ‰から－20.7 ‰に減少した。この理由はバクテリアがより高いδ<sup>13</sup>Cを有する有機物、すなわち底生微小藻類および海洋粒状有機物を優先的に利用するためと考えられた。また脂肪酸をバイオマーカとした解析から陸上植物および河川粒状有機物は、底生微小藻類および海洋粒状有機物の分解が進行した後に分解し始めることが明らかとなった。
The origin and bacterial utilization of organic matters in tidal-flat sediment were investigated using stable isotope and fatty acid analysis. Sedimentary organic matter (SOM) and potential food sources such as land plant, marine particulate organic matter (POM), benthic microalgae, riverine POM were taken from Gamo lagoon and Nanakita River Mouth. Land plant (δ<sup>13</sup>C = －26.6 and δ<sup>15</sup>N = 3.6) and riverine POM (δ<sup>13</sup>C = －25.5 and δ<sup>15</sup>N = 8.9) were isotopically distinct from benthic microalgae (δ<sup>13</sup>C = －16.3 and δ<sup>15</sup>N = 6.2) and marine POM (δ<sup>13</sup>C = －20.3 and δ<sup>15</sup>N = 10.3). In the degradation experiment of SOM for 50 days, the δ<sup>13</sup>C value of SOM decreased from －19.1 ‰ to －20.7 ‰. This was due to the preferential utilization of higher δ<sup>13</sup>C organic matter such as benthic microalgae and marine POM by bacteria. Land plant and riverine POM had begun to degrade after the degradation of benthic microalgae and marine POM progressed.
Journal
-
- Japanese Journal of Water Treatment Biology
-
Japanese Journal of Water Treatment Biology 48(2), 29-35, 2012-06-15
Japanese Society of Water Treatment Biology
References: 22
-
1
- <no title>
-
栗原康
河口 沿岸域の生態学とエコテクノロジー, 1988
Cited by (1)
-
2
- Physical control of sediment carbon content in an estuarine tidal flat system (Nanakita River, Japan) : A mechanistic case study
-
SAKAMAKI T.
Estuarine Coastal and Shelf Science 73, 781-791, 2007
Cited by (1)
-
3
- The fate of intertidal microphytobenthos carbon, An in situ ^<13>C-labeling study
-
MIDDELBURG J. J.
Limnology and Oceanography 45, 1224-1234, 2000
Cited by (1)
-
4
- Patterns in decomposition rates among photosynthetic organisms : the importance of detritus C:N:P content
-
ENRIQUEZ S.
Oecologia 94, 457-471, 1993
Cited by (1)
-
5
- A rapid method of total lipid extraction and purifivation
-
BLIGH E. G.
Can. J. Biochem. Physiol. 37, 91-917, 1959
Cited by (1)
-
6
- Organic matter in a subtropical mangrove-estuary subjected to wastewater discharge : Origin and utilization by two macrozoobenthic species
-
MEZIANE T.
Journal of Sea Research 47, 1-11, 2002
Cited by (1)
-
7
- Isotopic Determination of Food Sources of Crassostrea gigas Along a Trophic Gradient in the Estuarine Bay of Marennes-Oleron, Estuarine
-
RIERA P.
Coastal and Shelf Science 42, 347-360, 1996
Cited by (1)
-
8
- Incorporating concentration dependence in stable isotope mixing models
-
PHILLIPS D. L.
Oecologia 130, 114-125, 2002
Cited by (1)
-
9
- Carbon stable isotopes in estuarine sediments and their utility as migration markers for nursery studies in the Firth of Forth and Forth Estuary, Scotland
-
AUGLEY J.
Estuarine, Coastal and Shelf Science 72, 648-656, 2007
Cited by (1)
-
10
- Primary production of benthic microalgae in an intertidal sand flat of the Ria de Arosa, NW Spain
-
VARELA M
Marine Ecology Progress Series 25, 111-119, 1985
DOI Cited by (5)
-
11
- Seasonal variation in primary production of microphytobenthos at the Isshiki intertidal flat in Mikawa Bay
-
GOTO Naoshige , MITAMURA Osamu , TERAI Hisayoshi
Limnology 1(2), 133-138, 2000-08-01
References (27) Cited by (5)
-
12
- Organic carbon content of sediments as an indicator of stress in the marine benthos
-
HYLAND J.
Marine Ecology Progress Series. 295, 91-103, 2005
Cited by (2)
-
13
- Effects of Seawater Flow on the Soil Structure in Tidal Flat [in Japanese]
-
LEE Jeoung Gyu , CHEONG Cheong Jo , NISHIJIMA Wataru , OKADA Mitsumasa , BABA Eiichi
Journal of Japan Society on Water Environment 22(8), 677-682, 1999-08
J-STAGE References (15) Cited by (7)
-
14
- Quantification of Purification Ability for Organic Matter at Natural and Constructed Tidal Flats and the Role for Purification in Hiroshima Bay [in Japanese]
-
LEE Jeoung Gyu , NISHIJIMA Wataru , MUKAI Tetsuo , TAKIMOTO Kazuto , SEIKI Tohru , HIRAOKA Kiyonori , OKADA Mitsumasa
Journal of Japan Society on Water Environment 21(3), 149-156, 1998-03-10
J-STAGE References (41) Cited by (11)
-
15
- Preservation of organic matter and alteration of its carbon and nitriogen isotope composition during simulated and in situ early sedimentary diagenesis
-
LEHMANN M. F.
Geochimica et Cosmochimica Acta 66, 573-584, 2002
Cited by (4)
-
16
- Identification of food sources of invertebrates from the se agrass Zostera marina community using carbon and sulfur isotope ratio and fatty acid analyses
-
KHARLAMENKO VI
Marine Ecology Progress Series 220, 103-117, 2001
Cited by (4)
-
17
- Fatty acids as trophic markers of phytoplankton blooms in the Bahia Blanca Estuary (BuenosAires, Argentina) and Trinity Bay (Newfoundland, Canada)
-
NAPOLITANO GE
Biochem Syst. Ecol. 25, 739-755, 1997
DOI Cited by (3)
-
18
- Carbon and nitrogen content of natural planktonic bacteria.
-
NAGATA T.
Applied and Environmental Microbiology 52, 28-32, 1986
Cited by (10)
-
19
- Selection of food sources by Ruditapes philippinarum and Mactra veneriformis (Bivalva : Mollusca) determined from stable isotope analysis
-
KASAI Akihide , HORIE Hisako , SAKAMOTO Wataru
Fisheries Science 70(1), 11-20, 2004-02-01
References (38) Cited by (17)
-
20
- Feeding of the bivalve Theora lubrica on benthic microalgae : isotopic evidence
-
YOKOYAMA H
Mar Ecol Prog Ser 255, 303-309, 2003
Cited by (19)
-
21
- Feeding of the bivalve Theora lubrica on benthic microalgae : isotopic evidence
-
YOKOYAMA H
Mar Ecol Prog Ser 255, 303-309, 2003
Cited by (19)
-
22
- 七北田川河口の3つの干潟における堆積有機物の起源とその特徴
-
SHIN W. S.
環境工学研究論文集 45, 547-552, 2008
Cited by (1)