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Downstream migratory behavior of salmonids and its relationship with cortisol and thyroid hormones: A review
- M. Iwata
- Biology, Environmental Science
- 1 October 1995
Gonadotropin releasing hormone (GnRH) neurons project to growth hormone and somatolactin cells in the steelhead trout
Analysis of gene expression using gonadotropin-releasing hormone (GnRH) antisense oligonucleotide confirmed by immunocytochemical localization the occurrence of GnRH neurons along the nervus…
cDNA cloning and expression analysis of thyroid hormone receptor in the coho salmon Oncorhynchus kisutch during smoltification.
The parr–smolt transformation of Arctic charr is comparable to that of Atlantic salmon
Four dicephalous specimens of the blue shark, Prionace glauca, from Japan
Embryonic development of gonadotropin‐releasing hormone neurons in the sockeye salmon
- I. Parhar, M. Iwata, D. Pfaff, M. Schwanzel‐Fukuda
- BiologyThe Journal of comparative neurology
- 13 November 1995
Test the hypothesis that gonadotropin‐releasing hormone (GnRH) neurons are formed in the olfactory placode during embryonic development in a salmonid, Oncorhynchus nerka, and found most of the GnRH neuronal population was found in ganglia of the nervus terminalis, at the cribriform bone (gCB), and at the rostral Olfactory bulb (gROB).
Circadian Changes in Serum Concentrations of Steroids in Japanese Char Salvelinus leucomaenis at the Stage of Final Maturation
The results strongly suggest the existence of circadian-like diel changes in serum T, DHP, F and OHP levels in bothsex and 11KT in male, and no variations in serum E2 in female and P in both sex in spermiated/ovulated Japanese char under the stage of final maturation.
Genetic identification of walleye pollock (Theragra chalcogramma) populations on the basis of tetrazolium oxidase polymorphism.
- M. Iwata
- Environmental ScienceComparative biochemistry and physiology. B…
- 15 January 1975
Maturational changes in brain contents of salmon GnRH in rainbow trout as measured by a newly developed time-resolved fluoroimmunoassay.
- H. Yamada, M. Amano, K. Okuzawa, H. Chiba, M. Iwata
- BiologyGeneral and comparative endocrinology
- 1 April 2002
Changes in sGnRH contents in the hypothalamus and the pituitary indicate that sGNRH is involved in final maturation (ovulation or spermiation) in the rainbow trout.
Profiles in growth, smoltification, immune function and swimming performance of 1‐year‐old masu salmon Oncorhynchus masou masou reared in water flow
The results indicate that water-flow conditions can affect growth and fitness of juvenile masu salmon, which are desirable for both release programs and aquaculture of this species.