Papers 【 display / non-display 】

Papers 【 display / non-display 】

• Bluefin tuna sperm production is hastened by surrogacy in small Euthynnus

  Goro Yoshizaki, Wataru Kawamura, Ryosuke Yazawa, Yutaka Takeuchi, Shigeharu Kamio, Kensuke Ichida, Tetsuro Morita, Ricardo Hattori, and Makoto Hayashi , 2024.10

  Nature Communications

• Artificial reproduction of juvenile spotfin burrfish, Chilomycterus reticulatus (Linnaeus, 1758)

  Tetsuro Morita, Sakana-kun, Kyoichiro Saito, Taiga Abe, Yoshiyuki Matsushita, Wataru Kawamura, Ryosuke Yazawa , 2024

  Aquaculture Science

• Production of functional sperm from cryopreserved testicular germ cells following intraperitoneal transplantation into allogeneic surrogate in yellowtail (Seriola quinqueradiata).

  Tetsuro Morita, Misako Miwa, Naoki Kumakura, Kagayaki Morishima, Takahisa Miki, Yutaka Takeuchi, Goro Yoshizaki , 2021.06

  Cryobiology

  DOI

• Cold-shock induction of triploidy in the Japanese jack mackerel (Trachurus japonicus)

  Tetsuro Morita, Suwarak Wongtho, Masato Harada, Yoshiyuki Matsushita, Ryosuke Yazawa, Goro Yoshizaki , 2026.03

  Fisheries Science

  DOI

• Reproductive Characteristics and Suitability of Sterile dead end Knockout Nibe Croaker as a Recipient for Intraperitoneal Germ Cell Transplantation.

  Ryosuke Yazawa, Kyoichiro Saitoh, Akihiro Yamauchi, Onur Eyüboğlu, Kana Ozawa, Wataru Kawamura, Tetsuro Morita, Yutaka Takeuchi, Goro Yoshizaki , 2024.05

  Marine biotechnology (New York, N.Y.)

  DOI

display all >>

Books 【 display / non-display 】

Books 【 display / non-display 】

• Encyclopedia of Fish Physiology

  Tetsuro Morita, Goro Yoshizaki , 2024.04

  Academic Press , Germ line stem cells: Basic studies and applications in conservation and aquaculture , 0-0

• Encyclopedia of Fish Physiology, 2nd Edition

  Tetsuro Morita, Goro Yoshizaki , 2024.03

  Academic Press

• さかなクンのギョギョッとサカナ★スター図鑑 (講談社 MOOK)

  さかなクン , 2022.09

  講談社 , イシガキフグ , 0-0

Grant-in-Aid for Scientific Research 【 display / non-display 】

Grant-in-Aid for Scientific Research 【 display / non-display 】

• 魚のケガを可視化する～魚類種苗の生残向上に向けた新手法の開発～

  Project Period (FY)： 2024/04  -  2028/03  Investigator(s): 森田哲朗

  Grant-in-Aid for Scientific Research(B)  Principal Investigator  24K01835 

• 小型のコシナガ代理親魚にクロマグロの卵と精子を生産させる。

  Project Period (FY)： 2023/04  -  2027/03  Investigator(s): 矢澤 良輔

  Grant-in-Aid for Scientific Research(B)  Co-Investigator  23K26983 

• mRNAホルモンを用いた汎用性・実用性に優れた新しい魚類催熟法の開発

  Project Period (FY)： 2022/06  -  2025/03  Investigator(s): 森田哲朗

  Grant-in-Aid for challenging Research (Exploratory)  Principal Investigator  22K19205 

• Exploring the novel aquacultured fish using the surrogate broodstock

  Project Period (FY)： 2021/08  -  2023/03  Investigator(s): Tetsuro Morita

  Grant-in-Aid for Research Activity start-up  Principal Investigator  21K20592 

  In this study, I have attempted to develop many tasty but underutilized fish species in the family Carangidae as the novel aquacultured fish species using surrogate parentage techniques.
  In the first year (2021), I collected 11 species of the Carangid fishes that had been underutilized in aquaculture and froze their germ cells. Of these, the cells from Amberstripe scad were transplanted into Japanese jack mackerel larvae, and of the five recipients that survived until 2022 summer, two adult fish produced sperm, which were subjected to microsatellite (MS) analyses, and one produced sperm derived from the Amberstripe scad donor. The sperm were then fertilized with wild-type Japanese jack mackerel eggs, resulting in approximately 900 larvae, which were found to be the offspring of the Amberstripe scad by MS analyses. In other words, I succeeded in producing the functional gametes of derived from an underutilized fish species using Japanese jack mackerel as the surrogate broodstock.

Lesson Subject 【 display / non-display 】

Lesson Subject 【 display / non-display 】