Figure 12. Change in tracer retention index (TRI) for June to August, September, October and November in 2017 and 2019

From

Quantitative Relationships between Autumn Catches of Swordtip Squid (Uroteuthis edulis) and Oceanic Conditions to the East of Tsushima Islands, Japan

Tadanori Yamaguchi, Katsumi Takayama, Naoki Hirose

American Journal of Marine Science. 2021, 9(1), 16-25