Yu_UMEZAWA's web site

(論文引用数）:2020年5月時点Google Scholar Citation掲載数

Umezawa Y, Toyoshima K, Saitoh Y, Takeda S, Tamura K, Tamaya C, Yamaguchi A, Yoshimizu C, Tayasu I, and Kawamoto K (accepted)"Evaluation of origin-depended nitrogen input through atmospheric deposition and its effect on primary production in coastal areas of western Kyusyu, Japan", Environment Pollution (0)
Mori F, Umezawa Y, Kondo R, GN, Nishihara, Wada M (accepted) "Potential oxygen consumption and community composition of sediment bacteria in a seasonally hypoxic enclosed bay", PeerJ (0)
Itahashi, S., Hayashi, K., Takeda, S., Umezawa Y, Matsuda, K., Sakurai, T., and Uno, I.(accepted) Nitrogen burden from atmospheric deposition process in East Asian oceans in 2010 based on the high-resolution regional numerical modeling. Environmental Pollutions. (0)
Watanabe, K., Yoshida, G., Hori, M., Umezawa Y, Moki, H. and Kuwae, T.(2020) Macroalgal metabolism and lateral carbon flows can create significant carbon sinks. Biogeosciences.17:2425-2440 (0)
Muta N, Umezawa Y*, Yamaguchi A, Suzaki H, Wada M, Nakata H, Kawamoto K, and Matsuoka K (2019) "Estimation of spatiotemporal variations in nutrient fluxes from sediments in the seasonally hypoxic Omura Bay, Japan".Limnology. 21(3): 341-356. https://doi.org/10.1007/s10201-019-00591-1(0)
桑江朝比呂・吉田吾郎・堀正和・渡辺謙太・棚谷灯子・岡田知也・梅澤有・佐々木淳　(2019) 浅海生態系における年間二酸化炭素吸収量の全国推計, 土木学会論文集B2（海岸工学）.75:10-20.(0)⇒2021年度土木学会論文賞受賞論文
Hayami Y, Wada M, Umezawa Y, Fujii N, Nakamura A, Mori F (2019) "Hypoxic water mass in the highly turbid well-mixed macrotidal Rokkaku River Estuary, Ariake Sea, Japan". Estuarine, Coastal and Shelf Science. 210-222 (3)
Matsubayashi J, Umezawa Y, Matsuyama M, Kawabe R, Mei W, Wan X, Shimomae A, Tayasu I. (2019) "Feeding experiments to test the applicability of segmental isotope analysis of teleost fish vertebrae" Limnology and Oceanography: Methods. 17:87-96.doi: 10.1002/lom3.10298 (2)
Mei W, Umezawa Y*, Wan X, Sassa C, Takahashi M(2019) "Factors controlling spatiotemporal variations in stable carbon and nitrogen isotopes of Trachurus japonicus larvae and juveniles in the East China Sea", Fisheries Science.85: 71-80 (0)
Kurihara H, Ikeda N, Umezawa Y (2018) "Diurnal and seasonal variation of particle and dissolved organic matter release by the coral Acropora tenuis", Peer. JDOI 10.7717/peerj.5728 (1)
Mori F, Umezawa Y, Kondo R, Wada M (2018) "Dynamics of sulfate-reducing bacteria community structure in surface sediment of a seasonally hypoxic enclosed bay", Microbes and Environments.33(4): 378-384(0)
Mori F, Umezawa Y, Kondo R, Wada M (2018) "Effects of bottom-water hypoxia on sediment bacterial community composition in a seasonally hypoxic enclosed bay (Omura Bay, West Kyushu, Japan)",FEMS Microbiology Ecology,94, doi: 10.1093/femsec/fiy053, (2).
Mei W, Umezawa Y*, Wan X, Yuan J, Sassa C (2018) "Feeding habits estimated from weight-related isotope variations of mesopelagic fish larvae in the Kuroshio waters of the northeastern East China Sea" ICES Journal of Marine Science, doi:10.1093/icesjms/fsy016(5).--->概要
Umezawa Y, Tamaki A, Suzuki T, Takeuchi S, Yoshimizu C, Tayasu I (2018) "Phytoplankton as a principal diet for callianassid shrimp larvae in coastal waters, estimated from laboratory rearing and stable isotope analysis", Marine Ecology Progress Series, 592, 141-158(8).--->概要
Wada M, Takano Y, Nagae S, Ohtake Y, Umezawa Y, Nakamura S, Yoshida M, Matsuyama Y, Iwataki M, Takeshita S, Oda T (2018) "Temporal dynamics of dissolved organic carbon (DOC) produced in a microcosm with red tide forming algae, Chattonella marina and its associated bacteria", Journal of Oceanography (0).
Cheung S, Suzuki K, Saito H, Umezawa Y, Xia X, Liu H (2017) "Highly Heterogeneous Diazotroph Communities in the Kuroshio Current and the Tokara Strait, Japan", PLoS ONE, 12(10), e0186875 (16)
梅澤有・福田秀樹・小針統（2017）"水産・海洋系学部・大学院の学生動向，教育の現状と連携の必要性", 沿岸海洋研究, 55(1), 3-10 (0)
Mwaura JM, Umezawa Y, Nakamura T and Kamau J "Evidence of chronic anthropogenic nutrient within coastal lagoon reefs adjacent to urban and tourism centers, Kenya: A stable isotope approach". Marine Pollution Bulletin, 119(2), 74-86 (2017) (8)--->概要
Mwaura JM, Umezawa Y, Furaha J, Kimeli A, Kamau J, and Aura CM "Spatial variability of scleractinian coral bleaching susceptibility in 2010 El Niño–Southern Oscillation between northern and southern reefs, Kenya". Coastal Marine Science, 40, 17-27 (2017) (0)
Morimoto N, Umezawa Y, McGlone MLSD, Watanabe A, Siringan FP, Tanaka Y, Rgino GL, and Miyajima T "Spatial dietary shift in bivalves from embayment with river discharge and mariculture activities to outer seagrass beds in northwestern Philippines". Marine Biology, 164, 1-16 (2017)(8)
Ferrera, C.M., Watanabe A, Miyajima T, McGlone, MLSD, Morimoto N, Umezawa Y, Herrera E, Tsuchiya T, Yoshikai M, Nadaoka K. "Phosphorus as a driver of nitrogen limitation and sustained eutrophic conditions in Bolinao and Anda, Philippines, a mariculture-impacted tropical coastal area", Marine Pollution Bulletin, 105, 237-248 (2016) (18)
市川好貴・梅澤有*・山喜邦次・島塚桃子・和田実 "閉鎖性内湾における光合成硫黄細菌由来有機物の高次捕食者への転送に関する基礎的研究" 長崎大学水産学部研究報告, 97, 11-17, (2016)(0)
Ferrera, C.M., Miyajima T, Watanabe A, Umezawa Y, Morimoto N, McGlone, MLSD, Nadaoka K. "Variation in oxygen isotope ratio of dissolved orthophosphate induced by uptake process in natural coral holobionts", Coral Reefs, 35, 655-668, (2016) (0)
梅澤有・鈴村昌弘・塚崎あゆみ・尾崎健史・牟田直樹・山口聖"沿岸域生態系のリン循環", 地球環境, 20, 63-76, (2015） (0)
鈴村昌弘・塚崎あゆみ・橋濱史典・佐藤光秀・梅澤有"貧栄養海域のリン循環と解析手法". 地球環境, 20, 77-88, (2015） (0)
森郁晃・近藤竜二・梅澤有・松岡數充・須崎寛和・中田英昭・和田実（2015）"大村湾の貧酸素水塊形成期における堆積物微生物群集呼吸の動態", 沿岸海洋研究, 53(1), 87-95, (2015) (0)⇒2014-2015年度速水論文賞受賞論文
Yamaguchi A, Umezawa Y, Wada M, Sayama M "Potential contribution of microalgae to phosphorus cycling in tidal flat sediments during winter." Plankton & Benthos Research, 10(1):1-10, (2015)(4)
Fujita K, Nagamine S, Ide Y, Umezawa Y, Hosono T, Kayanne H, and Yamano H "Distribution of large benthic foraminifers around a populated reef island: Fongafale Island, Funafuti Atoll, Tuvalu" , Marine Micropaleontology, 114, 1-9 (2014)(17)
豊嶋香苗, 梅澤有*, 中田英昭"大村湾の環境修復に向けた陸起源窒素の取り込みに適した海藻の選択"長崎大学水産学部研究報告, 95, 41-51, (2014)(1)
Umezawa Y, Yamaguchi, A., Ishizaka, J., Hasegawa, T., Yoshimizu, C., Tayasu, I., Yoshimura, H., Morii, Y., Aoshima, T., and Yamawaki, N.: Seasonal shifts in the contributions of the Changjiang River and the Kuroshio Current to nitrate dynamics in the continental shelf of the northern East China Sea based on a nitrate dual isotopic composition approach, Biogeosciences, 11, 1297-1317, doi:10.5194/bg-11-1297-2014, (2014)(29) --->概要
塩川麻保, 山口聖, 梅澤有*"有明海西岸域への地下水由来の栄養塩供給量の評価"沿岸海洋研究, 50(2): 85-95, (2013)(0) ⇒2012-2013年度速水論文賞受賞論文
Wada M, Suzuki S, Nara T, Umezawa Y, Shimanaga M, Matsuoka K, Nakata H "Microbial Community Respiration and Structure of Dead Zone Sediments of Omura Bay, Japan." Journal of Oceanography, DOI 10.1007/s10872-012-0136-6, (2012)(12)
Nakada S, Umezawa Y, Taniguchi M and Yamano H "Groundwater Dynamics of Fongafale Islet, Funafuti Atoll" Groundwater, DOI:10.1111/j.1745-6584.2011.00874. (2011) (18)
Hata H and Umezawa Y "Nutritional ecology of a territorial farmer fish, Stegastes nigricans" Ecological Research, 26: 809-818, (2011) (19)
Hosono T, Su C, Delinom R, Umezawa Y, Toyota T, Kaneko S, Taniguchi M "Recent decline in heavy metal pollution in marine sediments in Jakarta Bay, Indonesia due to the effects of environmental regulations" Estuarine Coastal and Shelf Science, 92: 297-306, (2011) (95)
Hosono T, Wang CH, Umezawa Y, Nakano T, Yoshimizu C, Tayasu I, Nagata T, Onodera S, and Taniguchi M "Multiple isotope (H,O, N, S, and Sr) approach elucidates the complex pollution causes in the shallow groundwaters of Taipei urban area" Journal of Hydrology, 397:23-36 (2011), (82)
中田聡史, 山野博哉, 梅澤有, 藤田昌史, 渡邊真砂夫, 谷口真人"比抵抗法による環礁州島における帯水層の塩水化評価"　日本リモートセンシング学会誌, 30: 317-330 (2010) (0)
Hosono T, Siringan FP, Yamanaka T, Umezawa Y, Onodera S, Nakano T and Taniguchi M "Application of multi-isotope ratios to study the source and quality of urban groundwater in Metro Manila, Philippines" Applied Geochemistry,25: 900-909 (2010), (39)
Osawa Y, Fujita K*, Umezawa Y, Kayanne H, Ide Y, Nagaoka T, Miyajima T and Yamano H "Human impacts on large benthic foraminifers near a densely populated area of Majuro Atoll, Marshall Islands." Marine Pollution Bulletin,60: 1279-1287 (2010) (34)
Tanaka Y., T. Miyajima, Umezawa Y, T. Hayashibara, H. Ogawa and I. Koike "Net release of dissolved organic matter by the scleractinian coral Acropora pulchra" Journal of Experimental Marine Biology and Ecology 377: 101-106 (2009) (33)
Umezawa Y, T. Komatsu, M. Yamamuro and I. Koike "Physical and topographic factors affecting suspended particulate matter composition in a shallow tropical estuary."Marine Environmental Research 68:59-70 (2009) (9)
Burnett WC, Chanyotha S, Wattayakorn G, Taniguchi M, Umezawa Y, Ishitobi T. "Groundwater as a pathway of nutrient contamination in Bangkok, Thailand." Science of the Total Environment 407: 3198-3207 (2009) (17)
Umezawa Y, Hosono T, Onodera S, Siringan F, Buapeng S, Delinom R, Yoshimizu C, Tayasu I, and Nagata T. and M. Taniguchi. "The source and mechanisms controlling nitrate and ammonium contaminations in groundwater at developing Asian-Mega cities, Metro Manila, Bangkok and Jakarta". Science of the Total Environment 407:3219-3231 (2009) (151)
Onodera S, Saito M, Sawano M, Hosono T, Taniguchi T, Shimada J, Umezawa Y, Lubis RF, Buapeng S, Delinom R "Effect of intensive urbanization on chemical environment in deep groundwater; example in Bangkok and Jakarta". Science of the Total Environment, 407: 3209-3217 (2009) (65)
Umezawa Y, T. Miyajima and I. Koike "Stable nitrogen isotope composition in sedimentary organic matter as a potential proxy of nitrogen sources for primary producers at a fringing coral reef." Journal of Oceanography, 64(6); 899-909 (2008), (8)
Tanaka Y, Miyajima T, Yamada K, Hori M, Hasegawa N, Umezawa Y, Koike I "Specific growth rate as a determinant of carbon isotopic composition of a temperate seagrass Zostera marina." Aquatic Botany 89; 331-336 (2008) (18)
Umezawa Y, T. Miyajima, Y. Tanaka, T. Hayashibara and I. Koike "Variation of internal d15N and d13C distribution and their bulk values in a brown macroalgae. Journal of Phycology, 43; 437-448 (2007) (21)
Miyajima T, Hata T, Umezawa Y, Kayanne H, I. Koike "Distribution and partitioning of nitrogen and phosphorus in a fringing reef lagoon of Ishigaki Island, northwestern Pacific. Marine Ecology Progress Series, 341: 45-57 (2007) (17)
Sato T., T. Miyajima*, H. Ogawa, Umezawa Y, I. Koike "Temporal variability of stable carbon and nitrogen isotopic composition of size-fractionated particulate organic matter in the hypertrophic Sumida River Estuary of Tokyo Bay. Estuarine Coastal and Shelf Science, 68: 245-258 (2006) (55)
Komatsu T., Umezawa Y, M.Nakaoka, C.Supanwanid and Z.Kanamoto "Water flow and sediment in Enhalus acoroides and other seagrass beds in the Andaman Sea, off Khao Bae Na, Thailand." Coastal Marine Science, 29(1): 63-68 (2004) (41)
Yamamuro M., Umezawa Y and I. Koike "Internal variation of nutrients and C stable isotope ratios in the leaves of the seagrass Enhalus acoroides (L.f) Royle." Aquatic Botany, 79: 95-102 (2004) (18)
Umezawa Y, T.Miyajima, I. Koike and H. Kayanne "Significance of groundwater nitrogen discharge into coral reefs at Ishigaki Island, southwest of Japan." Coral Reefs, 21:346-356 (2002) (99)
Umezawa Y, T.Miyajima, M.Yamamuro, H. Kayanne and I. Koike "Fine scale mapping of land-derived nitrogen in coral reefs, by d15N values in macroalgae."Limnology and Oceanography, 47(5) 47:1405-1416 (2002) (158)
Suzumura M., T.Miyajima, H.Hata, Umezawa Y and H.Kayanne, I. Koike "Cycling of phosphorus maintains the production of microphytobenthic communities in carbonate sediments of a coral reef". Limnology and Oceanography, 47:771-781 (2002) (29)
Yamamuro M., Umezawa Y and I. Koike "Seasonality in nutrient concentrations and stable isotope ratios of Halophila ovalis growing on the intertidal flat of SW Thailand." Limnology, 2:199-205 (2002) (12)
Miyajima T., M. Suzumura, Umezawa Y and I. Koike "Microbiological nitrogen transformation in carbonate sediments of a coral-reef lagoon and associated seagrass beds (Ishigaki Island, western subtropical Pacific)," Mar. Ecol. Prog. Ser., 217: 273-286 (2001) (59)

Hayashi M, Taniguchi M, Fujii T, Umezawa Y, Onodera S "Water and TP Budgets Analysis Including Submarine Groundwater Near the Intertidal Zone." Proceedings of the 22nd International Offshore and Polar Engineering Conference (2012)
Saito M, Onodera S, Umezawa Y, Hosono T, Shimizu Y, Delinom R, Taniguchi M "Evaluation of nitrate attenuation potential in the groundwater of Jakarta metropolitan area, Indonesia." IAHS publication 329: 305-310 (2009), (5)
Umezawa Y, Onodera S, Ishitobi T, Hosono T, Delinom R, Burnett WC, Taniguchi M. "Effect of urbanization on the groundwater discharge into Jakarta Bay." IAHS publication 329: 233-240 (2009), (12)
Hosono T, Delinom R, Onodera S, Umezawa Y, Nakano T, Taniguchi M. "Cause of groundwater contamination in Jakarta alluvium volcanic fan deduced by sulfate and strontium isotope ratios." IAHS publication 329: 201-206 (2009), (5)
Hayashi M, Ishitobi T, Umezawa Y, Taniguchi M, Onodera S, Fujii T "Field observation and water budget analysis of the coast of Osaka Bay, Japan. Oceans 2008, 10.1109/OCEANSKOBE.2008.4531066 (2008)
Hosono T., Umezawa Y, Onodera S, Wang C-H, Siringan F, Buapeng S, Delinom R, Nakano T, and Taniguchi M. "Comparative study of water quality among Asian megacities based on major ion concentrations." Proceedings of HydroChange 2008, 295-300 (2008), (10)
Umezawa Y, Herzfeld I, Colgrove C, Smith CM "Impact of terrestrial nutrients through submarine groundwater discharge (SGD) on macroalgal bloom at fringing reef ecosystem" Proceedings of HydroChange 2008 619-624 (2008)
Taniguchi M., Shimada J., Fukuda Y., Onodera S., Yamano M., Yoshikoshi A., Kaneko S., Umezawa Y, Ihitobi T., K.A.B. Jago-on "Degradation of subsurface environmental in Asian coastal cities" Proceedings of HydroChange 2008, 605-610 (2008)
Umezawa Y., T. Ishitobi, S. Rungsupa, S. Onodera, T. Yamanaka, C. Yoshimizu, I. Tayasu, T. Nagata and M. Taniguchi Y. "Evaluation of Fresh groundwater contributions to the nutrient dynamics at shallow subtidal areas adjacent to a mega city, Bangkok., IAHS publication 312:169-179 (2007), (2)
Ishitobi T., Taniguchi M.,Umezawa Y., Kasahara S., Onodera S., Hayashi M., Miyaoka K., Hayashi M., & Miyake K. (2007) "Investigation of submarine groundwater discharge using several methods in the inter-tidal zone. IAHS publication 312:60-67, (2007), (3)
Tanaka Y., T. Miyajima, Y. Umezawa, H. Fukuda, I. Koike, H. Ogawa and T. Hayashibara "Effects of nitrate enrichment on release of dissolved organic carbon and nitrogen from zooxanthellate coral, Acropora pulchra and Porites cylindrica." Proceedings of 10th International Coral Reef Symposium, 925-931 (2006), (2)

梅澤有 (2018) 海藻の窒素安定同位体比を用いたサンゴ礁生態系への陸起源の栄養塩流入の影響域把握. "熱帯・亜熱帯地域水環境に関する研究動向" 日本水環境学会, 熱帯・亜熱帯地域水環境研究委員会.
Umezawa Y., Role of GIS working group - the progress in 2007 and future plan, Progress Report "Human Impacts on Urban Subsurface Environments"
小池勲夫、梅澤有 (2005) "海草藻場生態系における物質循環-特に熱帯域に注目して-" 月刊海洋 vol.37(2) 139-147
Yamamuro M., Y. Umezawa and I.Koike (2003) "Internal Variation of Nutrients and CN Stable Isotope Ratios in the Leaves of the Seagrass Enhalus Acoroides (L. f.) Royle." (In) Conservation of Tropical Seagrass Beds with Special Reference to Their Role of Function of Coastal Ecosystem. (eds. I. Koike), 70-81
Umezawa Y., M.Yamamuro, I.Koike and K.Lewmanomont (2003) "The variable nitrogen sources for macrophyte at intertidal seagrass beds during dry season, evaluated from algal species and stable isotopes" (In) Conservation of Tropical Seagrass Beds with Special Reference to Their Role of Function of Coastal Ecosystem. (eds. I. Koike), 97-111
Umezawa Y.,T.Komatsu and Koike (2003) "Variable physical causing diverse quality and quantity of suspended organic matters at adjacent seagrass beds in a Thailand shallow estuary" (In) Conservation of Tropical Seagrass Beds with Special Reference to Their Role of Function of Coastal Ecosystem. (eds. I. Koike), 1-24
梅澤有, 宮島利宏, 山室真澄, 茅根創, 小池勲夫 (2001) "熱帯・亜熱帯沿岸域における陸源窒素影響域の解析－底生大型藻類のd15Ｎの利用 ."月刊海洋 Vol.33, No.7, 472-476
Yamamuro M.,Y. Umezawa and I.Koike (1999) "Temporal change of nutrient contents and stable isotope ratios in Halophila ovalis growing in the intertidal flat" (In): Effect of grazing and disturbance by dugongs and turtles on tropical seagrass ecosystems. (eds. I. Koike), 91-102
Koike I,. M.Nakaoka, H.Iizumi, Y. Umezawa, T.Kuramoto, T.Komatsu, M.Yamamuro, K.Kogure, C.Supanwanid and K.Lewmanomont (1999) "Environmental factors controlling biomass and production of seagrass of southern Thailand" (In): Effect of grazing and disturbance by dugongs and turtles on tropical seagrass ecosystems. (eds. I. Koike), 66-81, (5)
Umezawa Y., I.Koike,and K.Lewmanomont (1999) "Effects of terrestrial input to the attached algae analyzed by stable isotope technique." (In): Effect of grazing and disturbance by dugongs and turtles on tropical seagrass ecosystems. (eds. I. Koike), 1-16

梅澤有、海洋で多彩なフィールドワーク研究をするために『現場で育むフィールドワーク教育』（2021年8月）古今書院、218p
梅澤有、地下水の水圏生態系への影響『水産海洋ハンドブック第3版』（2016年3月）生物研究社、676p
梅澤有、4巻3章粒子状有機物の炭素・窒素安定同位体比『海洋観測ガイドライン』（2015年9月）日本海洋学会編
梅澤有、水質観測『地球環境学マニュアル2』（2014年1月）総合地球環境学研究所編朝倉書店、132p．
梅澤有、『アジア巨大都市－都市景観と水・地下環境－』（2011年3月）谷口真人・谷口智雅・豊田知世編著　新泉社、182p．
梅澤有、窒素循環『地球環境学事典』（2010年10月）総合地球環境学研究所編　弘文堂、651p．
Miyajima T., Umezawa, Y. Stable isotope composition of nitrogen (d15N) as a tool for investigating nitrogen cycling in coral reef ecosystems.『Earth, Life, and Isotopes (Eds. Ohkouchi, N., Tayasu, I., Koba, K.)』（2010年2月）Kyoto Univ. Publ.
"From Headwaters to the Ocean: Hydrological Change and Watershed Management"(2008) (Eds) M. Taniguchi, W.C. Burnett, Y. Fukushima, M. Haigh and Y. Umezawa, AK Leiden, The Netherlands, CRC Press/Balkema.
梅澤有、 III 多様性：海の生態系を乱す地下水汚染『地球の処方箋』（2008年3月）総合地球環境学研究所編　昭和堂
梅澤有、 6章　陸域由来窒素が沿岸海域に与える負荷─大型藻類の窒素同位体比から『流域環境評価と安定同位体』（2008年2月）永田俊・宮島利宏編　京大出版会
高津文人・梅澤有・田中義幸、 15章　一次生産者の同位体比の特徴とその変動要因『流域環境評価と安定同位体』（2008年2月）永田俊・宮島利宏編　京大出版会

梅澤有, "台風等の気象災害が海洋生態系に与える影響", 日本地球惑星科学連合大会, パブリックセッション「激甚化する風水害にどう対応するか」、JpGU, 幕張, 2019年5月, 招待講演
梅衛平、梅澤有*、佐々千由紀、高橋素光、由水千景、陀安一郎, "東シナ海における中深層性魚類の産卵様式と仔稚魚の食性の解析"第9回同位体環境学シンポジウム, 京都, 2019年12月.
梅澤有・栗原晴子・安田仁奈・水山克・北野裕子・中村隆志・佐藤崇範・今宮則子", サンゴ礁の危機を学び保全を考える「サンゴすごろく」の作成と検討", 第22回日本サンゴ礁学会、札幌, 2019年11月.
Mwaura, M.J., Umezawa Y*, Nakamura T., Kamau, J, "Evidence of chronic anthropogenic nutrients within coastal lagoon reefs, adjacent to urban and tourism centers, Kenya: A stable isotope approach", JpGU, 幕張, 2017年5月.
梅澤有, "陸水由来の栄養塩が海域生態系に与える影響の多様性", 日本地球惑星科学連合大会, セッション「沿岸海洋生態系-1. 水循環と陸海相互作用」、JpGU, 幕張, 2016年5月, 招待講演
梅澤有・宮島利宏・茅根創・秦浩司・小池勲夫, "パラオ堡礁サンゴ礁ラグーンにおける窒素循環"、JpGU, 幕張, 2016年5月
Yamaguchi A, Umezawa Y*, Takeda S, Ishizaka J, Chang J "The availability of dissolved organic phosphorus in the northeast of the East China Sea" The 7th PEACE Ocean Science Workshop, Qingdao, China, Oct.. 2014
Umezawa Y, Tamaki A, Kiyama K, Hiramatsu D, Suzuki T, Somiya R, Matsuo H, Okamura K, Yoshimizu C and Tayasu I "Food source and habitat conditions of the larvae of the ghost shrimp Nihonotrypaea harmandi, estimated based on stable isotopes analysis of bulk and amino acids" Ocean Science Meeting, Honolulu, USA, Feb 2014.
梅澤有，渡邉敦, 宮島利宏，森本直子，M.L. McGlone，F. Siringan, C. Feffera，G. Regino, D. Mancenido, 灘岡和夫 "フィリピンBolinao海域における養魚場等起源の有機物・栄養塩が隣接するサンゴ礁に与える影響の解析." 日本サンゴ礁学会16回大会, 恩納村(OIST), 2013年12月.
Umezawa Y, Yamaguchi A, Ishizaka J, Hasegawa T, Yamawaki N, Morii Y and Yoshimura H "Seasonal shift of the contribution of Changjiang River and Kuroshio water to nutrient dynamics at continental shelf of East China Sea" Ocean Science Meeting, Salt Lake City, USA, Feb 2012.
Umezawa Y, "Impact of Isahaya dike construction on physical environments and ecosystems in Ariake Bay, Kyusyu, Japan." International Workshop on Coastal Observations and Sediment Transport in Coastal Zones, 国立中央大学, 台湾, June 2011, 招待講演
Umezawa Y "Introduction of the coastal areas & the studies on nutrient dynamics around Nagasaki, International Symposium on the Sustainability and Productivity of Coastal Resources", Nagasaki, Jan 2011.
梅澤有，中田聡史, 谷口真人，利部慎，浅井和由，Greg Wolff, Gunter Koepke，山野博哉. "環礁洲島における地下水滞留時間の推定." 日本サンゴ礁学会13回大会, つくば 2010年12月.
Umezawa Y., Onodera S, Shimizu Y, Shiokawa M, Yamaguchi A, Yasumoto J, Hayashi M, Ushihara Y "Effects of Urbanization on the Groundwater Discharge into a Semi-closed Bay: Osaka Bay, Japan, Based on 222Rn measurements" 3rd Ra-Rn meeting, Jerusalem, Israel, Mar. 2010
梅澤有、塩川麻保、山口聖、小野寺真一、清水裕太、安元純、林美鶴、牛原康博 "222Rnを用いた大阪湾への地下水流入量の評価"　日本海洋学会春季大会、品川、東京、2010年3月
Umezawa Y., Onodera S, Ishitobi T, Hososno T, Delinom R, Burnett WC, and Taniguchi M "Effect of urbanization on the groundwater discharge into Jakarta Bay" 8th IAHS scientific assembly and 37th IAH congress, Hyderabad, India, Sept. 2009
Umezawa Y., Hosono T, Onodera S, Siringan F, Buapeng S, Delinom R, Yoshimizu C, Tayasu I, and Nagata T. and M. Taniguchi. " Sources of nitrate contaminations in groundwater under developing Asian-Mega cities." AGU fall meeting, CA, USA, Dec. 2008
梅澤有、小野寺真一、清水裕太　「222Rnを指標とした内湾への地下水流入フラックスの定量評価」日本陸水学会, 札幌、2008年10月
Umezawa Y, Herzfeld I, Colgrove C, Smith CM "Impact of terrestrial nutrients through submarine groundwater discharge (SGD) on macroalgal bloom at fringing reef ecosystem"HydroChange 2008, October, 2008（座長)
Umezawa Y, Onodera S, Hosono T, Nakano T, Taniguchi M "Relationships between Rn-222 concentrations in groundwater and geological settings in Western Japan" AOGS, Busan, Korea, June 2008
Umezawa Y, Hosono T, Taniguchi M, Onodera S "Carbon and nitrogen characteristics of sedimentary organic matter as indicators of historical trophic state in Osaka Bay and Jakarta Bay" AOGS, Busan, Korea, June 2008
梅澤有、宮島利宏、田中泰章、大葉英雄、林原毅、由水千景、陀安一郎、永田俊　「大型藻類の硝酸塩取り込みに伴う同位体分別効果の定量」日本海洋学会, 品川、2008年3月
Umezawa Y, Hosono T, Onodera S, Siringan F, Buapeng S, Delinom R, and M. Taniguchi. "Sources of nitrate and ammonium contaminations in groundwater at developing Asian megacities". International Symposium "Current Problem in Groundwater Management and Related Water Resources Issues" Bali, Indonesia, December 2007
Umezawa Y., Ishitobi T, Rungsupa S, Onodera S, Yamanaka T, Yoshimizu C, Tayasu I, Nagata T, and Taniguchi T "Groundwater contributions to the nutrient dynamics at shallow inter- and sub- tidal areas adjacent to a mega city, Bangkok. " International Union of Geodesy and Geophysics, Perugia, Italy, July 2007
梅澤有、細野高啓、小野寺真一、由水千景、陀安一郎、永田俊、谷口真人「アジア大都市における地下水中の硝酸汚染の時空間的な起源の評価」地球惑星連合大会, 幕張、2007年5月
梅澤有.、石飛智稔、小野寺真一、山中勤、陀安一郎、永田俊、谷口真人「バンコク市近郊の潮下帯における海底地下水湧出と含有栄養塩に占める淡水地下水寄与量の評価」地球惑星連合大会、幕張、2007年5月（座長：水循環に関わる物質輸送）
Umezawa Y., T. Miyajima, Y. Tanaka, I. Koike, H. Ohba, and T. Hayashibara "Seasonal and spatial variations of nitrogen sources for macroalgae and its controlling factors assessed by 15N and other chemical components in algal thalli at fringing coral reefs" 10th ICRS, Okinawa, Japan, July 2004
Umezawa Y., T.Komatsu, M.Yamamuro and I. Koike "Various physical forcing controlling chemical compositions of suspended matters in water column of seagrass beds in a Thailand estuary "ASLO meeting, Hawaii, USA, February 2004
梅澤有、田中泰章、宮島利宏、林原毅、大葉英雄、小池勲夫「褐藻類Padina spp.のd15N分布からみた陸起源窒素影響域の季節変化とその要因の解析」日本サンゴ礁学会、琉球大学、那覇 2003年11月（座長：サンゴ礁における物質循環）
梅澤有、秦浩司、藤河芳枝、宮島利宏、茅根創、小池勲夫 "パラオ諸島裾礁サンゴ礁における堆積物-水柱間の栄養塩循環" 地球惑星連合大会、東京、2001年5月
梅澤有、宮島利宏、小池勲夫「熱帯・亜熱帯沿岸域における陸源窒素影響域の解析－底生大型藻類のd15Ｎの利用」, 東大海洋研シンポジウム、海洋の窒素循環-21世紀の海洋学の展望-、東京大学、中野、2000年12月
Umezawa Y., T.Miyajima, M.Yamamuro, H.Kayanne and I.Koike, "Terrestrial Nitrogen Impact to Coral Reefs Evaluated by Stable Nitrogen Isotope of Macroalgae" 9th International Coral Reef Symposium, Bali, Abstract, October 2000
梅澤有、宮島利宏、山室真澄、山野博哉、茅根創、小池勲夫　"サンゴ礁域への陸源窒素影響域の解析-大型藻類の 15NとC/N比の有効性"　日本海洋学会秋季大会, 九州大学、福岡、2000年9月
梅澤有 、宮島利宏、小池勲夫、山野博哉、茅根創　「サンゴ礁海域への地下水を通しての陸起源栄養塩の流入量の定量」日本海洋学会秋季大会, 京都大学、京都、1998年9月
梅澤有 、宮島利宏、小池勲夫　「地下水を通したサンゴ礁への栄養塩の流入」　東大海洋研シンポジウム (沿岸環境と生態系の変化), 東京大学、東京、1998年6月