15.1.3 Larval stages of freshwater prawns

15.1.3 Larval stages

Larval stages

No. of days after hatching

Characters

I

1-2

Sessile eyes

II

2-5

Stalked eyes

III

6-8

Uropods appear

IV

8-13

Dorsal teeth on rostrum

V

12-19

Telson narrower & elongated

VI

15-24

Pleopod buds appear;Chromatopore mass present on mid- ventral

VIII

24-28

Pleopods with setae

IX

26-30

Endopods of pleopods with appendix internae

X

29-33

3 - 4 dorsal teeth on rostrum

XI

32-35

Teeth on half of the upper dorsal margin of rostrum

Post Larvae

(PL)

34-45

Teeth on upper & lower margin of rostrum and setae appear in telson. Starts settling at the bottom of tank and swim & crawl like adults

larvel rearing tank unit
Last modified: Saturday, 24 December 2011, 10:59 AM