Zobrazeno 1 - 8 of 8 pro vyhledávání: '"Shigenobu Okumura"'
1
Stocking effectiveness of Japanese Spanish mackerel Scomberomorus niphonius in the eastern Seto Inland Sea
Autor: Shigenobu Okumura, Yoshihisa Yamamoto, Hiromasa Takemori, Hiroshi Fujimoto, Koji Kusaka, Yasuhiro Obata, Hideki Yamazaki, Shuichi Kitada, Akio Iwamoto
Publikováno v: NIPPON SUISAN GAKKAISHI. 73:210-219
サワラの放流効果を推定するため，ALC 耳石標識を施した全長 40 mm の種苗と中間育成をした全長 100 mm の種苗を 2002, 2003 年に播磨灘と備讃瀬戸に放流した。瀬戸内海東部海域の主要市場で
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b993578ca272c13b14f4bfe61a70c1e7
https://doi.org/10.2331/suisan.73.210
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2
A comparison of survival rates until recruitment for hatchery-released Japanese Spanish mackerel Scomberomorus niphonius with different sizes at release
Autor: Hiroshi Fujimoto, Akio Iwamoto, Yasuhiro Obata, Yoshihisa Yamamoto, Hideki Yamazaki, Shuichi Kitada, Hiromasa Takemori, Shigenobu Okumura
Publikováno v: NIPPON SUISAN GAKKAISHI. 73:55-61
サワラの人工種苗を効率的に資源へ添加するための放流サイズを，種苗生産の直後に放流した全長約 40 mm 種苗と種苗生産後に飼育を行った全長約 100 mm 種苗について，漁獲加入までの生
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::cafc1fb35d6964410dea7ed77b718427
https://doi.org/10.2331/suisan.73.55
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4
Comparison of two types of artificial nursery test reef by experiment of releasing juvenile red spotted grouper Epinephelus akaara under natural conditions
Autor: Keigo Maruyama, Shigenobu Okumura, Seiichi Tsumura
Publikováno v: NIPPON SUISAN GAKKAISHI. 69:57-64
放流したキジハタ0歳魚を1歳魚まで育成する保護育成礁の可能性の検討,及び2種類の実験礁の比較を目的に本研究を行った。主に植毛材またはホタテガイ貝殻から成る実験礁を1基ずつ製
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::91d7a86a7a5e7f3f123fadbf59d1a214
https://doi.org/10.2331/suisan.69.57
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5
Experimental release of juvenile red spotted grouper Epinephelus akaara into the artificial reefs made of scallop Patinopecten yessoensis shells
Autor: Yasuhisa Kayano, Seiichi Tsumura, Keigo Maruyama, Kouji Kusaka, Shigenobu Okumura
Publikováno v: NIPPON SUISAN GAKKAISHI. 69:917-925
キジハタ放流魚の保護育成機能を持つ魚礁を開発するため,ホタテガイ貝殻を利用した実験魚礁を用いて放流実験を行った。岡山県白石島沖に2種類の実験魚礁を3基ずつ沈設し,キジハタ幼
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fd8b039812175f265ae8044869a19f9f
https://doi.org/10.2331/suisan.69.917
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6
Spawning behavior and artificial fertilization in captive reared red spotted grouper, Epinephelus akaara
Autor: Kumiko Okamoto, Ryou Oomori, Akinobu Nakazono, Shigenobu Okumura
Publikováno v: Aquaculture. 206:165-173
Spawning behavior was observed in the red spotted grouper, Epinephelus akaara, to investigate the reason for low fertilization rates in spawning tanks. Artificial fertilization was also carried out to examine the egg quality of tank-reared fish. Grou
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::44459159072b21b1b3b3bc72b7b023da
https://doi.org/10.1016/s0044-8486(01)00722-0
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7
Evaluation of artificial nursery reef materials for juvenile red spotted grouper Epinephelus akaara under reared condition
Autor: Seiichi Tsumura, Keigo Maruyama, Shigenobu Okumura
Publikováno v: NIPPON SUISAN GAKKAISHI. 68:186-191
キジハタ幼魚を対象とした人工保護礁の素材と構造を検討するため,小型魚礁に対するキジハタ人工種苗の蝟集度の違いと食害防止効果を調べた。4種類の魚礁を用いた水槽内実験の結果,
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6a1b1cf4e79db55a7ed43708882c4fd4
https://doi.org/10.2331/suisan.68.186
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