Isao Hanyu

Biochemistry, Genetics and Molecular Biology · Life Sciences

34h-index3.3kcitations132works0.02yr avg
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Research Topics

Reproductive biology and impacts on aquatic species(69), Aquaculture Nutrition and Growth(59), Fish Ecology and Management Studies(42), Fish Biology and Ecology Studies(26), Marine and fisheries research(23)

Publications132 total

[Effects of the maturity of human oocytes on fertilization and embryonic development: application of oocyte maturation in medium containing follicle-stimulating hormone].
PubMed·1995
Immunocytochemical Identification of the Site of Vitellogenin Synthesis in the Freshwater Prawn <i>Macrobrachium nipponense</i>
Fisheries Science·1994· 40 citedOpen Access
The Effects of Water Temperature on Gonadotropin-Releasing Hormone Contents in the Discrete Brain Areas and Pituitary of Male Honmoroko <i>Gnathopogon caerulescens</i>
Fisheries Science·1994· 10 citedOpen Access
Effects of Photoperiod and Temperature on Gonadal Activity and Plasma Steroid Levels in an Autumn-Spawning Bitterling, Acheilognathus rhombea, during Different Phases of Its Annual Reproductive Cycle
General and Comparative Endocrinology·1994· 31 cited
Factors involved in the development of and decline in photoperiodism as it relates to the gonadal activity of a spring‐spawning bitterling, <i>Acheilognathus tabira</i>
Journal of Experimental Zoology·1993· 14 cited
Changes in hemolymph vitellogenin and ecdysteroid levels during the reproductive and non-reproductive molt cycles in the freshwater prawn Macrobrachium nipponense
ZOOLOGICAL SCIENCE·1992· 84 cited
Effects of Photoperiod, Pinealectomy and Ophthalmectomy on Circulating Melatonin Rhythms in the Goldfish, Carassius auratus(Endocrinology)
Biodiversity Heritage Library (Smithsonian Institution)·1992· 58 citedOpen Access
Studies on the Reproductive Rhythms of Fishes-XXXIII. Decline in Ovarian Activity during the Spawning Season of the Chichibu-Goby Tridentiger obscurus.
NIPPON SUISAN GAKKAISHI·1992· 2 citedOpen Access
Karyological studies on the freshwater prawn Macrobrachium rosenbergii
Aquaculture·1991· 32 cited
Circadian rhythms of melatonin secretion from superfused goldfish (Carassius auratus) pineal glands in vitro
General and Comparative Endocrinology·1991· 82 cited
Steroid profiles during maturation and induced spawning of the striped mullet, Mugil cephalus L.
Aquaculture·1991· 19 cited
Changes in plasma gonadotropin and steroid hormone levels during ovulation induced by HCG [human chorionic gonadotropin] treatment in female goldfish [Carassius auratus]
Bulletin of the Japanese Society of Scientific Fisheries·1991
Changes in Photoperiodism Involved in the Gonadal Development of a Spring-spawning Bitterling &lt;i&gt;Acheilognathus tabira&lt;/i&gt;
NIPPON SUISAN GAKKAISHI·1991· 9 citedOpen Access
Effects of Photoperiod and Water Temperature on the Spawning Rhythm of Shirogisu Sillago japonica.
NIPPON SUISAN GAKKAISHI·1991· 8 citedOpen Access
Effects of Water Temperature and Photoperiod on the Initiation and Termination of the Autumn Spawning Season in Tobinumeri-Dragonet Repomucenus beniteguri.
NIPPON SUISAN GAKKAISHI·1991· 11 citedOpen Access
Daily Spawning Rhythm During Spring and Autumn Spawning Seasons in the Tobinumeri-Dragonet Repomucenus beniteguri.
NIPPON SUISAN GAKKAISHI·1991· 13 citedOpen Access
Effects of temperatures during winter on gonadal recrudescence in spring in the rose bitterling Rhodeus ocellatus ocellatus.
NIPPON SUISAN GAKKAISHI·1991· 4 citedOpen Access
Effects of photoperiod and temperature on molting, reproduction and growth of the freshwater prawn Macrobrachium rosenbergii.
NIPPON SUISAN GAKKAISHI·1991· 30 citedOpen Access
Changes in plasma gonadotropin and steroid hormone levels during ovulation induced by HCG treatment in female goldfish.
NIPPON SUISAN GAKKAISHI·1991· 13 citedOpen Access
Effects of cold shocks on fertilized eggs of the red-tailed shrimp, Penaeus penicillatus. 1. Hatching, survival, growth and fecundity.
1990· 1 cited
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Frequent Co-authors

Katsumi Aida(35), Makito Kobayashi(14), Kiyoshi Furukawa(8), Hiroaki Kezuka(4), Tetsu Okumura(4), Kiyoshi Asahina(4), Katsumi Aida(3), Akio Shimizu(3), Kazumasa Ikuta(3), Naoto Okumoto(3), Terence P. Barry(3), Minoru Nomura(3), Koichi Okuzawa(2), Masayuki Iigo(2), Hiroshi Niwa(2), Tamotsu TAMURA(2), Show W. Lou(2), Kiyoshi Sakai(2), Mikio Tanaka(2), Shiro Tazaki(2)