Occurrence of Pacific bluefin tuna Thunnus orientalis larvae off the Pacific coast of Tohoku area, northeastern Japan: Possibility of the discovery of the third spawning ground

2019 ◽  
Vol 29 (1) ◽  
pp. 46-51 ◽  
Author(s):  
Yosuke Tanaka ◽  
Atsushi Tawa ◽  
Taiki Ishihara ◽  
Etsuro Sawai ◽  
Misato Nakae ◽  
...  
Aquaculture ◽  
2021 ◽  
Vol 530 ◽  
pp. 735769
Author(s):  
Takao Hayashida ◽  
Kentaro Higuchi ◽  
Kazuharu Nomura ◽  
Junpei Konishi ◽  
Yukinori Shimada ◽  
...  

2006 ◽  
Vol 23 (5) ◽  
pp. 443-448 ◽  
Author(s):  
Yutaka Kawakami ◽  
Manabu Seoka ◽  
Shigeru Miyashita ◽  
Hidemi Kumai ◽  
Hiromi Ohta

Animals ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1705
Author(s):  
Gyoungsik Kang ◽  
Kwang-Min Choi ◽  
Dong-Hee Cho ◽  
Min-Soo Joo ◽  
Min-Jin Heo ◽  
...  

The consumption of fish and shellfish worldwide is steadily increasing, and tuna is a particularly valuable fish species. However, infection caused by Kudoa spp. is causing problems in many fish including the Pacific bluefin tuna (Thunnus orientalis), and there is much controversy about the association of these infections with foodborne disease. In this study, using haematological and histological analyses of the blood and internal organs (liver, spleen, kidney, heart, stomach, intestine, gill, and muscle) of Pacific bluefin tuna cultured in South Korea, infection with Myxosporea was first identified, and molecular biological analysis was conducted. In this study, Kudoa hexapunctata was finally identified. The Pacific bluefin tunas analysed in this study did not show any gross pathology lesions, such as visible cysts and/or myoliquefaction, of infection with this species. The histological analytical results can provide guidelines for the identification of K. hexapunctata. In the case of K. hexapunctata-induced infection, unlike other countries, such as Japan, there have been no reports in South Korea, and this study is the first to detect K. hexapunctata infection in Pacific bluefin tuna cultured in South Korea. The correlation between K. hexapunctata and food poisoning is not yet clear, however, it is thought that continuous observation of its infection is necessary.


2015 ◽  
Vol 51 (4) ◽  
pp. 553-560 ◽  
Author(s):  
Sang Chul YOON ◽  
Joon Taek YOO ◽  
Sung Il LEE ◽  
Zang Geun KIM ◽  
Kwang Ho CHOI

2005 ◽  
Vol 36 (5) ◽  
pp. 413-421 ◽  
Author(s):  
Yoshifumi Sawada ◽  
Tokihiko Okada ◽  
Shigeru Miyashita ◽  
Osamu Murata ◽  
Hidemi Kumai

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