Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Motoyoshi Yamaguchi"'
Publikováno v:
Fisheries Science. 77:95-106
Rice-fish culture, which means the simultaneous culture of rice and fish, is one of the best options to increase food production from limited land and is practiced in many countries in the world. Although many researchers and farmers believe that the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e8334a875c30acfac0c3c0ed5457a50f
https://doi.org/10.1007/s12562-010-0299-2
https://doi.org/10.1007/s12562-010-0299-2
Publikováno v:
Journal of Ethology. 24:285-289
We have investigated the effects of three current velocities and three substrate sizes (gravel to cobble) on the spawning behavior of Japanese dace, Tribolodon hakonensis, in spawning-induction and habitat-selection experiments. In the spawning-induc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69b0bb5d8471fd6638303842f13f9558
https://doi.org/10.1007/s10164-006-0195-5
https://doi.org/10.1007/s10164-006-0195-5
Autor:
Motoyoshi Yamaguchi, Kazumi Hosoya, Kei'ichiroh Iguchi, Satoshi Kitano, Osamu Katano, Yoshimasa Aonuma
Publikováno v:
Environmental Biology of Fishes. 66:107-121
The relationships between environmental variables, distribution of freshwater fishes and their diet were investigated at 40 sites on irrigation ditches for rice fields in central Japan. Multivariate analyses showed that fish species richness and dive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::61933afdb4cfdb6d93c7e1039f8d0fea
https://doi.org/10.1023/a:1023678401886
https://doi.org/10.1023/a:1023678401886
Autor:
Fuminari Ito, Kougi Ogawa, Teiichi Nishimura, Motoyoshi Yamaguchi, Masaki Nagae, Akira Kawahara
Publikováno v:
Water, Air, and Soil Pollution. 130:893-898
In this study, we examined the effects of chronic sublethal low pH exposure (pH 4.5) on endocrine and immune functions in carp. Plasma cortisol levels elevated rapidly from 3 hours after acid exposure and kept high until 2 days. Subsequently cortisol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbcd7e5a3ff36938036d713d8e0f600e
https://doi.org/10.1023/a:1013855501445
https://doi.org/10.1023/a:1013855501445
Autor:
Motoyoshi Yamaguchi, Teiichi Nishimura, Kogi Ogawa, Atsushi Ishimatsu, Fuminari Ito, Masaki Nagae
Publikováno v:
Water, Air, and Soil Pollution. 130:887-892
Changes in plasma cortisol, estoradiol-17β (E2) and 11-ketotestosterone (11-KT) levels under chronic acid exposure were examined to clarify the endocrinological effects of lowered environmental pH on gametogenesis in immature and gonadal developing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::23e570b55a7f5d1eee02f2f98fb28427
https://doi.org/10.1023/a:1013803517375
https://doi.org/10.1023/a:1013803517375
Publikováno v:
NIPPON SUISAN GAKKAISHI. 57:1501-1505
Sexual dimorphism in the anal fin of ayu Plecoglossus altivelis was studied by serial sampling of ayu. Changes in the shape of the anal fin were triggered by sexual maturation in both sexes; however, secondary sexual characteristics developed drastic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5aba4df6fa57094c20f4bcadb23d811c
https://doi.org/10.2331/suisan.57.1501
https://doi.org/10.2331/suisan.57.1501
Publikováno v:
Copeia. 1994:184
We examined the reproductive traits and early survival of ayu, Plecoglossus altivelis (Osmeridae), from amphidromous and land-locked populations under controlled rearing conditions to evaluate the adaptive significance of egg size variation. Spawning
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0beb83392bbf713a09593c412f3cc1d0
https://doi.org/10.2307/1446684
https://doi.org/10.2307/1446684
Publikováno v:
Journal of Pesticide Science. 7:457-461
8種類の農薬に対するコイの感受性の変化を, 発眼卵から約5cmに成長する間, 調べた. 有機りん殺虫剤あるいは殺菌剤 trichlorfon, fenitrothion, Phenthoate, diazinon, IBP及びPCP除草剤に対する感受性は,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a2ed20ee69cd7468e62556f74be912a
https://doi.org/10.1584/jpestics.7.457
https://doi.org/10.1584/jpestics.7.457
Autor:
Ryo Suzuki, Motoyoshi Yamaguchi
Publikováno v:
NIPPON SUISAN GAKKAISHI. 46:1427-1434
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::286561edb9789f10847513eb157c7e75
https://doi.org/10.2331/suisan.46.1427
https://doi.org/10.2331/suisan.46.1427
Autor:
Ryo SUZUKI, Motoyoshi YAMAGUCHI
Publikováno v:
NIPPON SUISAN GAKKAISHI. 43:367-373
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a858f8de258ed42df71d7465cff5e666
https://doi.org/10.2331/suisan.43.367
https://doi.org/10.2331/suisan.43.367