Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Tomoko Utoh"'
Autor:
Tomoko Utoh, Okamura A, Y. Yamada, Naomi Mikawa, Katsumi Tsukamoto, Huan Zhang, Noriyuki Horie, S. Tanaka, Oka Hp
It is generally believed that parent freshwater eels (Anguilla sp.) die soon after spawning on the assumption that eels are a semelparous (or monocyclic) fish (spawn once at the last stage of life) like Pacific salmonids. However, we observed for the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ada313014fffbda764ce36e2b107eafd
https://doi.org/10.1101/494435
https://doi.org/10.1101/494435
Autor:
Hideo P. Oka, Tomoko Utoh, Katsumi Tsukamoto, Akihiro Okamura, Yoshiaki Yamada, Satoru Tanaka, Naomi Mikawa, Noriyuki Horie
Publikováno v:
Aquaculture. :120-127
To develop seed production techniques for aquaculture of the common Japanese conger, Conger myriaster , we attempted to induce ovarian maturation and ovulation without exogenous hormone treatment and examined the changes in steroid hormones to unders
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6ca9f453a1d0163be17660c99983da3
https://doi.org/10.1016/j.aquaculture.2013.02.007
https://doi.org/10.1016/j.aquaculture.2013.02.007
Autor:
Naomi Mikawa, Katsumi Tsukamoto, Toyoji Kaneko, Yoshiaki Yamada, Tomoko Utoh, Satoru Tanaka, Akihiro Okamura, Noriyuki Horie
Publikováno v:
Aquaculture. 296:367-372
We investigated the effects of low-salinity water on the growth, survival, and activity of artificially reared Japanese eel larvae (Anguilla japonica), proceeding from the assumption that such water quality saves energy due to lower cost for osmoregu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d2dc24ce89ba77ae250f5329233420e1
https://doi.org/10.1016/j.aquaculture.2009.08.039
https://doi.org/10.1016/j.aquaculture.2009.08.039
Autor:
Noriyuki Horie, Tomoko Utoh, Satoru Tanaka, Akihiro Okamura, Yoshiaki Yamada, Michael J. Miller, Katsumi Tsukamoto, Naomi Mikawa
Publikováno v:
Marine Ecology Progress Series. 379:241-251
The larvae of anguillid eels are termed leptocephali, among other reasons, because they differ greatly in morphology and physiology from other fish larvae. Leptocephali grow to large sizes but are transparent and fragile and have an unusual feeding s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa90f96d92cc774c8cf1fff544239421
https://doi.org/10.3354/meps07912
https://doi.org/10.3354/meps07912
Autor:
Naomi Mikawa, Akihiro Okamura, Tomoko Utoh, Hideki Tanaka, Toyoji Kaneko, Noriyuki Horie, Yoshiaki Yamada, Michael J. Miller, Satoru Tanaka, Katsumi Tsukamoto
Publikováno v:
Marine Biology. 156:835-846
Many planktonic organisms have adaptations such as floats or lighter substances to obtain buoyancy to help them remain in the surface layer of the ocean where photosynthetic primary production occurs and food is most abundant. The almost totally tran
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad373df3b1e2a0d21399ee1cdbe76992
https://doi.org/10.1007/s00227-008-1123-8
https://doi.org/10.1007/s00227-008-1123-8
Autor:
Tomoko Utoh, Noriyuki Horie, Katsumi Tsukamoto, Takushi Horita, Naomi Mikawa, Yoshiaki Yamada, Akihiro Okamura, Satoru Tanaka
Publikováno v:
Aquaculture Research. 40:509-512
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09f2c2be2080ea433fc7aae19feb46b6
https://doi.org/10.1111/j.1365-2109.2008.02127.x
https://doi.org/10.1111/j.1365-2109.2008.02127.x
Autor:
Tomoko Utoh, Katsumi Tsukamoto, Noriyuki Horie, Satoru Tanaka, Akihiro Okamura, Naomi Mikawa, Yoshiaki Yamada
Publikováno v:
NIPPON SUISAN GAKKAISHI. 75:786-792
ウナギ卵の孵化と仔魚の生残，成長に及ぼす銀イオンの影響を調べた。硝酸銀の濃度 0.1 mg/L 以上で孵化率は低下したが，仔魚の生残率は 1 mg/L でも 24 時間は 0 mg/L の対照区と変わらなか
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::095ce236a7d226e3a061d06995c7f9a2
https://doi.org/10.2331/suisan.75.786
https://doi.org/10.2331/suisan.75.786
Autor:
Tomoko Utoh, Yoshiaki Yamada, Satoru Tanaka, Katsumi Tsukamoto, Akihiro Okamura, Naomi Mikawa, Noriyuki Horie
Publikováno v:
Fisheries Science. 74:642-648
The effects of silvering state of wild female Japanese eels Anguilla japonica on the success of induced maturation and the following spawning were examined. Thirty-eight females, collected in Mikawa Bay, were divided into four stages based on their s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb64302e464dbf504e292cd6a5b7aa03
https://doi.org/10.1111/j.1444-2906.2008.01569.x
https://doi.org/10.1111/j.1444-2906.2008.01569.x
Autor:
Akihiro Okamura, Yoshiaki Yamada, Hideo P. Oka, Tomoko Utoh, Noriyuki Horie, Naomi Mikawa, Katsumi Tsukamoto, Satoru Tanaka
Publikováno v:
Aquaculture International. 17:91-99
For efficient production of Japanese eel Anguilla japonica eggs, knowledge of the status of the sexual maturity of potential broodstock females is important because this status directly influences the time required to produce mature eggs by successiv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c3d1db0486f301a8610f027a060c84e
https://doi.org/10.1007/s10499-008-9172-z
https://doi.org/10.1007/s10499-008-9172-z
Autor:
Yoshiaki Yamada, Naomi Mikawa, Tomoko Utoh, Akihiro Okamura, Noriyuki Horie, Katsumi Tsukamoto, Satoru Tanaka
Publikováno v:
NIPPON SUISAN GAKKAISHI. 74:26-35
人工催熟したウナギの採卵法の違いが，得られる卵仔魚の質に及ぼす影響を調べた。雌雄のペアリングによる昇温を伴う自発産卵法（n=12）と従来の水温一定の搾出媒精法（n=14）により
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0fd4d09b7c51c0ffb3e18c0770c4746
https://doi.org/10.2331/suisan.74.26
https://doi.org/10.2331/suisan.74.26