Evidence of westward transoceanic migration of Pacific bluefin tuna in the Sea of Japan based on stable isotope analysis

2017 ◽  
Vol 164 (4) ◽  
Author(s):  
Atsushi Tawa ◽  
Taiki Ishihara ◽  
Yuki Uematsu ◽  
Tsuneo Ono ◽  
Seiji Ohshimo
Keyword(s):  
Stable Isotope ◽  
Sea Of Japan ◽  
Stable Isotope Analysis ◽  
Isotope Analysis ◽  
Bluefin Tuna ◽  
The Sea Of Japan ◽  
Pacific Bluefin Tuna

Reproductive biology of female Pacific bluefin tuna, Thunnus orientalis, in the Sea of Japan

2016 ◽  
Vol 174 ◽  
pp. 30-39 ◽  
Author(s):  
Yumi Okochi ◽  
Osamu Abe ◽  
Sho Tanaka ◽  
Yukio Ishihara ◽  
Akio Shimizu
Keyword(s):  
Reproductive Biology ◽  
Sea Of Japan ◽  
Bluefin Tuna ◽  
The Sea Of Japan ◽  
Pacific Bluefin Tuna ◽  
Thunnus Orientalis

Feeding ecology of juvenile Pacific bluefin tuna Thunnus orientalis in the Sea of Japan

2021 ◽  
Author(s):  
Takuya Sato ◽  
Ken-ichi Nakamura ◽  
Atsushi Nishimoto ◽  
Atsushi Tawa ◽  
Taketoshi Kodama ◽  
...  
Keyword(s):  
Sea Of Japan ◽  
Feeding Ecology ◽  
Bluefin Tuna ◽  
The Sea Of Japan ◽  
Pacific Bluefin Tuna ◽  
Thunnus Orientalis

Regional-scale surface temperature variability allows prediction of Pacific bluefin tuna recruitment

2018 ◽  
Vol 75 (4) ◽  
pp. 1341-1352 ◽  
Author(s):  
Barbara A Muhling ◽  
Desiree Tommasi ◽  
Seiji Ohshimo ◽  
Michael A Alexander ◽  
Gerard DiNardo
Keyword(s):  
Surface Temperature ◽  
Sea Of Japan ◽  
Environmental Variability ◽  
Regional Scale ◽  
Bluefin Tuna ◽  
Additive Models ◽  
The Sea Of Japan ◽  
Pacific Bluefin Tuna ◽  
Proactive Management ◽  
Late Fall

Abstract Future sustainable management of fisheries will require resilience to the effects of environmental variability and climate change on stock productivity. In this study, we examined relationships between sea surface temperature (SST) in the region between Taiwan and the Sea of Japan, and annual recruitment of Pacific bluefin tuna (Thunnus orientalis: PBF) over the past 35 years. Spatial correlation maps showed that warmer SSTs south of Shikoku, in the East China Sea and in the Sea of Japan from summer to late fall were associated with above average recruitment. SST anomalies near larval and juvenile habitats were most strongly correlated with local air temperatures. Generalized Additive Models predicting annual PBF recruitment from SST fields suggested that the influence of SST on recruitment was stronger than that of spawning stock biomass. Correlations between SST and recruitment likely reflect biological processes relevant to early juvenile habitat suitability. The influence of late fall SSTs could also be a result of varying availability of age-0 fish to the troll fishery; however, the relative importance of these processes was not clear. Despite these knowledge gaps, the strong predictive power of SST on PBF recruitment can allow more proactive management of this species under varying environmental conditions.

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