Correction to: Fisheries Science https://doi.org/10.1007/s12562-021-01531-8

In this article the black down arrows in Fig. 2a, that should indicate white letters ‘20 °C’ inside the arrows have disappeared. It should have appeared as shown below. The original article has been corrected.

Fig. 2
figure 2

a–d Progress of oocyte maturation in Japanese eel Anguilla japonica reared at 15 and/or 20 °C for 3 days before 17α-hydroxyprogesterone (17α-OHP) injection (Experiment 1). The females with > 5% increase in body weight were randomly reared at 20/20 °C (n = 3), 20/15 °C (n = 5), 15/20 °C (n = 6), and 15/15 °C (n = 7) from Monday to Wednesday and from Wednesday to Thursday. The oocytes were collected from the gonopore with a cannula on Monday, Tuesday, and Wednesday evenings, and Thursday morning and evening. The lipid droplet stage and oocyte diameter were determined using 10 oocytes from each female at each cannulation. a Frequency distribution of the lipid droplet stage from Monday to Thursday. b Changes in the lipid droplet stage. Values are the median of those for 3–7 females. c Changes in the oocyte diameter. Upper panel shows 20/20 °C and 20/15 °C groups, and lower panel 15/20 °C and 15/15 °C groups. Values are the mean ± standard deviation of those for 3–7 females. d Rate of increase in oocyte diameter. Values are the mean ± standard deviation of those for 3–7 females

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