Figure 8. The diel vertical distribution of Daphnia eon July 24 and 25, 1968, in Crater Lake, Oregon. ( I = 500 organisms/10 minute horizontal tow). * = 15 minute horizontal tow.
Figure 9. The diel vertical distribution of Daphniapulex on August 28 and 29, 1968, in Crater Lake, Oregon. ( – = 1000 organisms/10 minute horizontal tow). * = Juveniles at N01 this depth are those in the earliest molt just released from brood pouches of the adults.