338
T. A. DETTLAFF
60
40
20
Ο
•
-ν
Γ,
10
15
20
25 °C
π
1 ο
60\
40
Ο
χ3
χ—_
>
;
)
I
10
15
20
25
30°ϋ
FIG. 2. Duration of different developmental periods (τι, TU, TUI) in the sturgeon (top)
and in the sevruga (bottom) in terms of the duration of the first cleavage division (τ η /τ 0 ).
T. A. DETTLAFF
60
40
20
Ο
•
-ν
Γ,
10
15
20
25 °C
π
1 ο
60\
40
Ο
χ3
χ—_
>
;
)
I
10
15
20
25
30°ϋ
FIG. 2. Duration of different developmental periods (τι, TU, TUI) in the sturgeon (top)
and in the sevruga (bottom) in terms of the duration of the first cleavage division (τ η /τ 0 ).