2011

Okamura A, Yamada Y, Mikawa N, Horie N, Utoh T, Tanaka S, Tsukamoto K (2011) Notochord deformities in reared Japanese eel Anguilla japonica larvae. Aquaculture 317:37-41.

2009


Okamura A, Oka HP, Horie N, Utoh T, Yamada Y, Mikawa N, Tanaka S, Tsukamoto K (2009) Assessing sexual maturity of feminized Japanese eel Anguilla japonica by measuring eye size. Aquacult. Int. 17:91-99.

Yamada Y, Okamura A, Mikawa N, Utoh T, Horie N, Tanaka S, Miller MJ, Tsukamoto K (2009) Ontogenetic changes in phototactic behavior during metamorphosis of artificially reared Japanese eel  Anguilla japonica larvae. Mar. Ecol. Prog. Ser. 379:241-251.

Okamura A, Yamada Y, Horita T, Horie N, Mikawa N, Utoh T, Tanaka S, Tsukamoto K (2009) Rearing eel leptocephali (Anguilla japonica) in a planktonkreisel. Aquacult. Res. 40:509-512.

岡村 明浩, 山田 祥朗, 堀江 則行, 三河 直美, 宇藤 朋子, 田中 悟, 塚本 勝巳 (2009) ウナギ卵・仔魚の飼育における銀イオンの添加:毒性と抗菌作用. 日本水産学会誌 75:786-792.

Okamura A, Yamada Y, Mikawa N, Horie N, Utoh T, Kaneko T, Tanaka S, Tsukamoto K (2009) Growth and survival of eel leptocephali (Anguilla japonica) in low-salinity water. Aquaculture 266:117-129.

2008


Okamura A, Yamada Y, Horie N, Utoh T, Mikawa N, Tanaka S, Tsukamoto K (2008) Effects of silvering state on induced maturation and spawning in wild female Japanese eel Anguilla japonica. Fish. Sci. 73:1241-1248.

Dou SZ, Yamada Y, Okamura A, Tanaka S, Shinoda A, Tsukamoto K (2008) Temperature influence on the spawning performance of artificially-matured Japanese eel, Anguilla japonica, in captivity. Env. Biol. Fish. 82:151-164.

Okamura A, Zhang H, Mikawa N, Kotake A, Yamada Y, Horie N, Utoh T, Tanaka S, Oka HP, Tsukamoto K. (2008) Decline in non-native freshwater eels in Japan: ecology and future perspectives. Env. Biol. Fish. 81:347-358

堀江則行,宇藤朋子,三河直美,山田祥朗,岡村明浩,田中悟,塚本勝巳 (2008) ウナギの人工種苗生産における採卵法が卵質に及ぼす影響(搾出媒精法と自発産卵法の比較). 日本水産学会誌 71:26-35

2007


Dou SZ, Yamada Y, Okamura A, Tanaka S, Shinoda A, Tsukamoto K (2007) Observations on the spawning behavior of artificially matured Japanese eels Anguilla japonica in captivity. Aquaculture 266:117-129

Okamura A, Yamada Y, Yokouchi K, Horie N, Mikawa N, Utoh T, Tanaka S, Tsukamoto K (2007) A silvering index for the Japanese eel Anguilla japonica. Env. Biol. Fish. 80:77-89

Kotake A, Arai T, Okamura A, Yamada Y, Utoh T, Oka HP, Miller MJ, Tsukamoto K (2007) Ecological aspects of the Japanese eel, Anguilla japonica, collected from coastal areas of Japan. Zool. Sci. 24:1213-1221

Okamura A, Yamada Y, Horie N, Utoh T, Mikawa N, Tanaka S, Tsukamoto K (2007) Effects of water temperature on the early development of the Japanese eel, Anguilla japonica. Fish. Sci. 73:1241
1248

2006


Mikawa N, Utoh T, Horie N, Okamura A, Yamada Y, Akazawa A, Tanaka S, Tsukamoto K, Hirono I, Aoki T (2006) Cloning and characterization of vitellogenin cDNA from the common Japanese conger (Conger myriaster) and vitellogenin gene expression during ovarian development. Comp Biochem Physiol B 143:404-414

2005


Utoh T, Horie N, Mikawa N, Okamura A, Yamada Y, Akazawa A, Tanaka S, Oka HP (2005) Annual changes in ovarian development and plasma estradiol-17b level in reared female common Japanese conger, Conger myriaster. Fish. Sci. 71:38-47

Kotake A, Okamura A, Yamada Y, Utoh T, Arai T, Miller MJ, Oka HP, Tsukamoto K (2005) Seasonal variation in the migratory history of the Japanese eel Anguilla japonica in Mikawa Bay, Japan. Mar. Ecol. Prog. Ser. 293:213-221

2004


Utoh T, Mikawa N, Okamura A, Yamada Y, Tanaka S, Horie N, Akazawa A,Oka HP (2004) Ovarian morphology of the Japanese eel in Mikawa Bay. J. Fish Biol. 64:502-513

Yamada Y, Okamura A, Tanaka S, Mikawa N,Horie N, Utoh T, Akazawa A, Oka HP (2004) Monthly changes in the swim bladder morphology of female Japanese eel, Anguilla japonica in the eastern coastal waters of Mikawa bay, Japan. Ichcthyol. Res. 51:52-56

Tanaka S, Utoh T, Yamada Y, Horie N, Okamura A, Akazawa A, Mikawa N, Oka HP, Kurokura H (2004)Role of sodium bicarbonate on the initiation of sperm motility in the Japanese eel. Fish. Sci. 70:780-787

Mikawa N, Utoh T, Horie N, Okamura A, Yamada Y, Akazawa A, Tanaka S, Tsukamoto K, Hirono I, Aoki T (2004) Cloning of estrogen receptor-ß cDNA of common Japanese conger Conger myriaster and expression of the gene during oocyte development. Fish. Sci. 70:960-970

Utoh T, Okamura A, Yamada Y, Tanaka S, Mikawa N, Akazawa A, Horie N, Oka HP (2004) Reproductive cycle in reared male common Japanese conger, Conger myriaster. Aquaculture 240:589-605

Okamura A, Zhang H, Utoh T, Akazawa A, Yamada Y, Horie N, Mikawa N, Tanaka S, Oka HP (2004) Artificial hybrid between Anguilla anguilla and A. japonica. J. Fish Biol. 64:1450-1454

2003


Utoh T, Horie N, Okamura A, Yamada Y, Tanaka S, Mikawa N, Akazawa A, Oka HP (2003) Oogenesis in the Common Japanese Conger Conger myriaster. Fish. Sci. 69:181-188

Tzeng WN, Shiao JC, Yamada Y, Oka HP (2003) Life history patterns of Japanese eel Anguilla japonica in Mikawa Bay, Japan. Am. Fish. Soc. Symp. 33:285-293

堀江則行,山田祥朗,岡村明浩,田中 悟, 宇藤朋子,三河直美,赤澤敦司,岡英夫 (2003) マアナゴの催熟および排卵誘発のための効果的なホルモン投与方法の検討. 日本水産学会誌 69:337-346

Tzeng WN, Iizuka Y, Shiao JC, Yamada Y, Oka HP (2003) Identification and growth rates comparison of divergent migratory contigents of Japanese eel (Anguilla japonica). Aquaculture 216:77-86

2002


Okamura A, Yamada Y, Mikawa N, Tanaka S, Oka HP (2002) Exotic silver eels Anguilla anguilla in Japanese waters: seaward migration and environmental factors. Aquat. Living Resor. 15:335-341

Okamura A, Yamada Y, Tanaka S, Horie N, Utoh T, Mikawa N, Akazawa A, Oka HP. (2002) Atmospheric depression as the final trigger for the seaward migration of the Japanese eel Anguilla japonica. Mar. Ecol. Prog. Ser. 234:281-288

Okamura A, Oka HP, Yamada Y, Utoh T, Mikawa N, Horie N, Tanaka S (2002) Development of lateral line organs in leptocephali of the freshwater eel Anguilla japonica (Teleostei, Anguilliformes). J. Morphol. 254:81-91

Tanaka S, Zhang H, Horie N, Yamada Y, Okamura A, Utoh T, Mikawa N, Oka HP, Kurokura H (2002) Long term cryopreservation of sperm of Japanese eel. J. Fish Biol. 66:139-146

Yamada Y, Okamura A, Tanaka S, Utoh T, Horie N, Mikawa N, Oka HP (2002) The roles of bone and muscle as phosphorus reservoirs during the sexual maturation of the Japanese eel, Anguilla japonica Temminck and Schlegel (Anguilliformes). Fish Physiol. Biochem. 24:327-334

Tanaka S, Zhang H, Yamada Y, Okamura A, Horie N, Utoh T, Mikawa N, Oka HP, Kurokura H (2002) Inhibitory effect of sodium bicarbonate on the motility of sperm of Japanese eel. J. Fish Biol. 60:1134-1141

Zhang H, Futami K, Yamada Y, Horie N, Okamura A, Utoh T, Mikawa N, Tanaka S, Okamoto N, Oka HP (2002)Isolation of fresh water and deep-sea type opsin genes from the common Japanese conger Conger myriaster. J. Fish Biol. 61:313-324

Horie N, Utoh T, Yamada Y, Okamura A, Zhang H, Mikawa N, Akazawa A, Tanaka S, Oka HP. Development of embryos and larvae in the common Japanese conger Conger myriaster. Fish. Sci. (2002) 68:972-983

2001


岡村明浩,張寰,山田祥朗,宇藤朋子,三河直美,堀江則行,田中悟,元信堯. (2001) 判別関数式によるニホンウナギとヨーロッパウナギの識別. 日本水産学会誌 67:1056-160

Yamada Y, Zhang H, Okamura A, Tanaka S, Horie N, Utoh T, Mikawa N, Oka HP (2001) Morphological and histological changes in the swim bladder during the maturation of the Japanese eel. J. Fish Biol. 58:804-814

Yamada Y, Oka HP, Okamura A, Tanaka S, Horie N, Utoh T, Mikawa N, Ogawa K (2001) Infection of the digenean Aerobiotrema muraenesocis in the swim bladder lumen of pike eel Muraenesox cinereus. Fish Pathol. 36:47-55

堀江則行,宇藤朋子,山田祥朗,岡村明浩,張寰,三河直美,田中悟,岡英夫(2001)ホルモン投与によるマアナゴの催熟と排卵誘発. 日本水産学会誌 67:842-849

Ishikawa S, Suzuki K, Inagaki T, Watanabe S, Kimura Y, Okamura A, Otake T, Mochioka N, Suzuki Y, Hasumoto H, Oya M, Miller MJ, Lee TW, Fricke H, Tsukamoto K (2001) Spawning time and place of the Japanese eel Anguilla japonica in the North Equatorial Current of the western North Pacific Ocean. Fish. Sci. 67:1097-1103

Kajimura S, Yoshimura Y, Suzuki M, Utoh T, Horie N, Oka H, Aida K (2001) Changes in the levels of m RNA cording for gonadotropin I
β and IIβ subunits during vitellogenesis in the common Japanese conger Conger myriaster. Fish. Sci. 67:1053-1062

Oka HP, Egusa S (2001) Transition of the techniques and diseases in eel culture. J. Taiwan Fish. Res. 9:69-83

2000


Okamura A, Zhang H, Yamada Y, Tanaka, S, Horie N, Mikawa N, Utoh T, Oka HP (2000) Re-examination of the spermatozoal ultrastructure of eels: observations of the external morphology of spermatozoa in three species. J. Fish. Biol. 57:161-169

岡村明浩,宇藤朋子,張寰,山田祥朗,堀江則行,三河直美,田中悟,元信堯,岡英夫 (2000) 渥美半島太平洋岸におけるマアナゴ成熟度の季節変化. 日本水産学会誌 66:412-416

Zhang H, Futami K, Horie N, Okamura A, Utoh T, Mikawa N, Yamada Y, Tanaka S, Okamoto N (2000) Molecular cloning of fresh water and deep-sea rod opsin genes from Japanese eel Anguilla japonica and their expressional analysis during sexual maturation. FEBS Lett. 469:39-43

1999


Aoyama J, Hissmann K, Yoshinaga T, Sasai S, Uto T, Ueda H. (1999) Swimming depth of migrating silver eels Anguilla japonica released at seamounts of the West Mariana Ridge, their estimated spawning sites. Mar. Ecol. Prog. Ser. 186:265-269

Okamura A, Motonobu T (1999) Spermatozoa of Conger myriaster observed by electron microscopy. Zool. Sci.16:927-933

Zhang H, Mikawa N, Yamada Y, Horie N, Okamura A, Utoh T, Tanaka S, Motonobu T (1999) Foreign eel species in the natural waters of Japan detected by polymerase chain reaction of mitochondrial cytochrome b region. Fish. Sci. 65:684-686,


その他研究報告など

宇藤(飯田)朋子, 堀江則行 (2011) マアナゴの種苗生産技術に関する研究. 日本水産学会誌 77:775-778.

宮崎幸恵(東大 海洋研), 金 煕容(韓国国立水産科学院), 山田祥朗, 木村伸吾(東大 海洋研) (2008) ウナギ資源の現状と保全「安定同位体比を用いたウナギ幼生の餌料環境に関する研究」月刊海洋 号外48: 64-67.

山田祥朗, 岡村明浩, 竇 碩増 (2008) ウナギ資源の現状と保全「ウナギの産卵行動実験水槽における観察」月刊海洋 号外48: 31-38.

山田祥朗 (2008) ウナギ資源の現状と保全「ウナギ仔稚魚の光刺激に対する行動」月刊海洋 号外48: 24-30.

山田祥朗,岡村明浩 (2008) プランクトンはいかにしてプランクトンたり得るか -海洋生物の浮力調節機構- うみうし通信 No.58, 8-9

宇藤朋子など(2004)マアナゴ資源と漁業の現状 (東海正,清水詢道,反田實,鍋島靖信,望岡典隆 編)(社)日本水産資源保護協会 329pp

宇藤朋子 (2001) マアナゴの成熟と産卵. 月刊海洋 33:551-555.

宇藤朋子 (2001) マアナゴの成熟と産卵. 日本水産学会誌 67:115-116

Uto T, Suzuki Y, Aida K, Lokman PM (2000) Artificial maturation of Japanese eel, Anguilla japonica. In: T. Inagaki and K Tsukamoto eds, Preliminary Report of the Hakuho Maru Cruise KH-98-2.. Ocean Reserach Institute, Tokyo, pp.48-49

田中 悟 (1999) 水産研究のフロントから-()いらご研究所- 日本水産学会誌 65:939

張寰,元信堯 (1999) ウナギの産卵回遊と視覚の適応. 月刊海洋(号外) 18:141-145

田中敬一,岡英夫,元信堯 (1999) レプトケファルスの腸管内容中に見られたヤムシ. 月刊海洋(号外) 18:113-117