2003 Fiscal Year Annual Research Report

モーリシャス周辺海域のサンゴ礁の生物・化学的調査:白化現象の特異性の原因調査

Research Project

Project/Area Number	15255004
Research Category	Grant-in-Aid for Scientific Research (A)
Research Institution	Shizuoka University
Principal Investigator	鈴木款静岡大学, 理学部, 教授 (30252159)
Co-Investigator(Kenkyū-buntansha)	土屋誠琉球大学, 理学部, 教授 (40108460) 大森保琉球大学, 理学部, 教授 (00045022) 塩井祐三静岡大学, 理学部, 教授 (70094092) BEATRIZ CASARETO 静岡大学, 水圏科学コンサルタント, 主任研究員深見公雄高知大学, 農学部, 教授 (30181241)
Keywords	サンゴ礁 / 白化現象 / インド洋 / レユニオン / モーリシャス / 窒素固定 / 有機物循環 / 光合成細菌
Research Abstract	白化現象の要因とその回復過程を調査する目的で、インド洋のサンゴ礁群集の重要な場所であるマダガスカル周辺域、特にREUNIONとMAURITUS島を対象に調査を進める。1997〜1998年の海水温の上昇により世界的規模で白化現象が起こった。モーリシャス周辺のサンゴ礁は10%より少ないダメージで、この数字は大平洋の50〜90%に比べて極めて小さい。海水温の上昇は大平洋と同程度であるにもかかわらずどうして白化が大規模に起こらなかったのか。この地域のサンゴ礁の生態系維持機構には向か特徴があるのか。その一つは窒素固定が他の海域のサンゴ礁より大きいという報告が有るが、まだ不明確である。白化現象のダメージの大きさは従来海水温の上昇程度とその高い水温の存続期間により影響されるとされてきた。しかしながら、沖縄あるいは大平洋の熱帯域での海水温と白化の程度の関係は必ずしも明確な相関関係を示していない。最近これらの白化現象に微生物等が関係しているという報告がされた。研究の特色は海水および堆積物中の光合成細菌、微生物、共生藻類と有機物の生産量、分解量、栄養塩変動の関係、特に窒素固定が白化現象に重要な役割を果たしているかどうかが重要なポイントである。平成15年度は11月から12月(南半球の夏でサイクロンの少ない時期)にREUNION島で調査を行った。Saint-Denis周辺の人間活動の影響のない地点の調査ではほぼ生きているサンゴは67%(Acropora fomosa, Acropora digitate)、藻類が33%である。もう一つの調査地点は反対側にあるPlanchalizeeである。このサンゴは不健康であり、白化が集中した場所でもある。陸からの汚染物質の流入が見られる。栄養塩濃度、粒子態有機物濃度、窒素固定量および光合成細菌量等の観測を行った。窒素固定量は0.4〜3.9mgN/m2,dayであった。

Research Products

(18 results)

All Other

All Publications (18 results)

[Publications] 鈴木款他: "Phytoplankton Decomposition Process (PDP) Model Dealing with Carbon and Nitrogen Budget on Particulate Organic Matter"Journal of Chemical Enrineering of Japan. 36・4. 401-410 (2003)
[Publications] 鈴木款他: "Possibility of high C02 fixation Rate by Coral Reef Ecosystems"Greeenhouse Gas Control Technologies. 11. 817-822 (2003)
[Publications] 鈴木款他: "C02 Sequestration and Fate of Organic Matters within Seagrass (Zostera marina) Ecosystem"Journal of Chemical Engineering of Japan. 36・4. 417-427 (2003)
[Publications] 鈴木款他: "A model of the cycling and export of nitrogen in Fukido mangrove in Ishigaki Island"Journal of Chemical Engineering of Japan. 36・4. 411-416 (2003)
[Publications] 鈴木款他: "Import and export fluxes of HMW DOC and LMW DOC on a coral reef at Miyako Island, Okinawa"Proceedings of 9thICRS, Bali. 1. 555-559 (2003)
[Publications] 鈴木款他: "Refractory and Iabile organic carbon in coral reef seawater"Galaxea, JCRS.. 5. 11-19 (2003)
[Publications] 鈴木款: "ROLE OF DECOMPOSITION, AGGREGATION AND DISSOLUTION OF DIATOMS IN THE SINKING FLUX OF ORGANIC MATTER TO THE MESOPELAGICC LAYER"ASLO/TOS 2004 Ocean Research Conference. (2004)
[Publications] 塩井祐三他: "A versatile assay for the accurate, time-resolved determination of cellular variability"Anal.Biochem.. 314. 1-7 (2003)
[Publications] 塩井祐三他: "Identification of chlorophylls and carotenoids in major teas by high-performance liquid chromatography with photodiode array detection.J."Agric. Food Chem.. 51. 5307-5341 (2003)
[Publications] 大森保他: "HOW THE CARBONATE SYSTEM IN CORAL REEF RESPOND TO GLOBAL ENVIRONMENTALCHANGE?"G.C.A.(Abstract of Goldshmidt Conference at Kurashiki). (2003)
[Publications] 大森保他: "Detection of ogranotin compounds in surface seawater and sediments along the coast of Okinawa Island, Japan"Bull.Coll. of Sci., Univ, Ryukyus. 77. 123-135 (2004)
[Publications] 土屋誠他: "The diet of the mud clam Geloina coaxans (Mollusca, Bivalvia) as indicated by fatty acid markers in a subtropical mangrove forest of Okinawa Japan"Exp. Mar. Biol. Ecol.. 292. 187-197 (2003)
[Publications] 土屋誠他: "Fatty acids in decomposing mangrove leaves : microbial activity, decay and nutritional quality"Mar. Ecol. Prog. Ser.. 265. 97-105 (2003)
[Publications] Beatriz CASARETO 他: "Bio-aerosols in the Geo-sphere Module of CEEF"Eco-Engineering. 16・1. 39-44 (2004)
[Publications] Beatriz CASARETO 他: "Particulate organic carbon budget and POC flux in a fringing coral reef at Miyako Island, Okinawa"Proceedings of 9thICRS, Bali. 1. 95-100 (2003)
[Publications] Beatriz CASARETO: "ORGANIC MATTER BEHAVIOR DURING MESOCOSM INCUBATION OF UNDISTURBED NESOPELASGIC WATERS"ASLO/TOS 2004 Ocean Research Conference. (2004)
[Publications] 塩井祐三: "共著光合成辞典"日本光合成研究会編学会出版センター. 430 (2004)
[Publications] 土屋誠: "海洋ベントスの生態学:日本ベントス学会(編)第4章種間関係"東海大学出版会. 48 (2003)

2003 Fiscal Year Annual Research Report

モーリシャス周辺海域のサンゴ礁の生物・化学的調査:白化現象の特異性の原因調査

Principal Investigator

鈴木 款 静岡大学, 理学部, 教授 (30252159)

Research Products

[Publications] 鈴木 款 他: "Phytoplankton Decomposition Process (PDP) Model Dealing with Carbon and Nitrogen Budget on Particulate Organic Matter"Journal of Chemical Enrineering of Japan. 36・4. 401-410 (2003)

[Publications] 鈴木 款 他: "Possibility of high C02 fixation Rate by Coral Reef Ecosystems"Greeenhouse Gas Control Technologies. 11. 817-822 (2003)

[Publications] 鈴木 款 他: "C02 Sequestration and Fate of Organic Matters within Seagrass (Zostera marina) Ecosystem"Journal of Chemical Engineering of Japan. 36・4. 417-427 (2003)

[Publications] 鈴木 款 他: "A model of the cycling and export of nitrogen in Fukido mangrove in Ishigaki Island"Journal of Chemical Engineering of Japan. 36・4. 411-416 (2003)

[Publications] 鈴木 款 他: "Import and export fluxes of HMW DOC and LMW DOC on a coral reef at Miyako Island, Okinawa"Proceedings of 9thICRS, Bali. 1. 555-559 (2003)

[Publications] 鈴木 款 他: "Refractory and Iabile organic carbon in coral reef seawater"Galaxea, JCRS.. 5. 11-19 (2003)

[Publications] 鈴木 款: "ROLE OF DECOMPOSITION, AGGREGATION AND DISSOLUTION OF DIATOMS IN THE SINKING FLUX OF ORGANIC MATTER TO THE MESOPELAGICC LAYER"ASLO/TOS 2004 Ocean Research Conference. (2004)

[Publications] 塩井 祐三 他: "A versatile assay for the accurate, time-resolved determination of cellular variability"Anal.Biochem.. 314. 1-7 (2003)

[Publications] 塩井 祐三 他: "Identification of chlorophylls and carotenoids in major teas by high-performance liquid chromatography with photodiode array detection.J."Agric. Food Chem.. 51. 5307-5341 (2003)

[Publications] 大森 保 他: "HOW THE CARBONATE SYSTEM IN CORAL REEF RESPOND TO GLOBAL ENVIRONMENTALCHANGE?"G.C.A.(Abstract of Goldshmidt Conference at Kurashiki). (2003)

[Publications] 大森 保 他: "Detection of ogranotin compounds in surface seawater and sediments along the coast of Okinawa Island, Japan"Bull.Coll. of Sci., Univ, Ryukyus. 77. 123-135 (2004)

[Publications] 土屋 誠 他: "The diet of the mud clam Geloina coaxans (Mollusca, Bivalvia) as indicated by fatty acid markers in a subtropical mangrove forest of Okinawa Japan"Exp. Mar. Biol. Ecol.. 292. 187-197 (2003)

[Publications] 土屋 誠 他: "Fatty acids in decomposing mangrove leaves : microbial activity, decay and nutritional quality"Mar. Ecol. Prog. Ser.. 265. 97-105 (2003)

[Publications] Beatriz CASARETO 他: "Bio-aerosols in the Geo-sphere Module of CEEF"Eco-Engineering. 16・1. 39-44 (2004)

[Publications] Beatriz CASARETO 他: "Particulate organic carbon budget and POC flux in a fringing coral reef at Miyako Island, Okinawa"Proceedings of 9thICRS, Bali. 1. 95-100 (2003)

[Publications] Beatriz CASARETO: "ORGANIC MATTER BEHAVIOR DURING MESOCOSM INCUBATION OF UNDISTURBED NESOPELASGIC WATERS"ASLO/TOS 2004 Ocean Research Conference. (2004)

[Publications] 塩井 祐三: "共著 光合成辞典"日本光合成研究会編 学会出版センター. 430 (2004)

[Publications] 土屋 誠: "海洋ベントスの生態学:日本ベントス学会(編)第4章 種間関係"東海大学出版会. 48 (2003)

鈴木款静岡大学, 理学部, 教授 (30252159)

[Publications] 鈴木款他: "Phytoplankton Decomposition Process (PDP) Model Dealing with Carbon and Nitrogen Budget on Particulate Organic Matter"Journal of Chemical Enrineering of Japan. 36・4. 401-410 (2003)

[Publications] 鈴木款他: "Possibility of high C02 fixation Rate by Coral Reef Ecosystems"Greeenhouse Gas Control Technologies. 11. 817-822 (2003)

[Publications] 鈴木款他: "C02 Sequestration and Fate of Organic Matters within Seagrass (Zostera marina) Ecosystem"Journal of Chemical Engineering of Japan. 36・4. 417-427 (2003)

[Publications] 鈴木款他: "A model of the cycling and export of nitrogen in Fukido mangrove in Ishigaki Island"Journal of Chemical Engineering of Japan. 36・4. 411-416 (2003)

[Publications] 鈴木款他: "Import and export fluxes of HMW DOC and LMW DOC on a coral reef at Miyako Island, Okinawa"Proceedings of 9thICRS, Bali. 1. 555-559 (2003)

[Publications] 鈴木款他: "Refractory and Iabile organic carbon in coral reef seawater"Galaxea, JCRS.. 5. 11-19 (2003)

[Publications] 鈴木款: "ROLE OF DECOMPOSITION, AGGREGATION AND DISSOLUTION OF DIATOMS IN THE SINKING FLUX OF ORGANIC MATTER TO THE MESOPELAGICC LAYER"ASLO/TOS 2004 Ocean Research Conference. (2004)

[Publications] 塩井祐三他: "A versatile assay for the accurate, time-resolved determination of cellular variability"Anal.Biochem.. 314. 1-7 (2003)

[Publications] 塩井祐三他: "Identification of chlorophylls and carotenoids in major teas by high-performance liquid chromatography with photodiode array detection.J."Agric. Food Chem.. 51. 5307-5341 (2003)

[Publications] 大森保他: "HOW THE CARBONATE SYSTEM IN CORAL REEF RESPOND TO GLOBAL ENVIRONMENTALCHANGE?"G.C.A.(Abstract of Goldshmidt Conference at Kurashiki). (2003)

[Publications] 大森保他: "Detection of ogranotin compounds in surface seawater and sediments along the coast of Okinawa Island, Japan"Bull.Coll. of Sci., Univ, Ryukyus. 77. 123-135 (2004)

[Publications] 土屋誠他: "The diet of the mud clam Geloina coaxans (Mollusca, Bivalvia) as indicated by fatty acid markers in a subtropical mangrove forest of Okinawa Japan"Exp. Mar. Biol. Ecol.. 292. 187-197 (2003)

[Publications] 土屋誠他: "Fatty acids in decomposing mangrove leaves : microbial activity, decay and nutritional quality"Mar. Ecol. Prog. Ser.. 265. 97-105 (2003)

[Publications] 塩井祐三: "共著光合成辞典"日本光合成研究会編学会出版センター. 430 (2004)

[Publications] 土屋誠: "海洋ベントスの生態学:日本ベントス学会(編)第4章種間関係"東海大学出版会. 48 (2003)