The area of 100 eggs or larvae from brooding females (wild: pretrochophores from 5 females, trochophores
from 3 females, veligers from 5 females; hatchery: pretrochophores from 3 females, trochophores
from 3 females, veligers from 2 females) were measured using a compound microscope (BX41TF, Olympus, Tokyo, Japan) at a magnification of x 10 with an image capture camera (Evolution VFfast, Media cybernetics, Silver Spring, Canada) and Image processing software (Image-Pro plus V5.
05%) treatment of a pool of trochophores
in sea water for 2 h, mechanical disruption of cells, including centrifugation at 1000 rpm/10 min, hypotonic treatment in distilled seawater (1:1) for 30 min and then in 0.
larvae, agar-based foods, algae, bivalve hepatopancreas, and "grow-lights" for those species of medusae with zooxanthellae.
Effect of Temperature on the Hatches of Trochophores
Most of the spiralians began to swim as trochophores
(with ciliated trochoblasts).
Hatching and normality rates in trochophores
were determined at 10 h p.
The notion that neurites extending from the apical ganglion may help organize later formed components of the nervous system has been sugges ted previously by Lacalli (1981, 1984), on the basis of studies of several species of polychaete trochophores
6% of them survived to trochophores
by 16 h after fertilization.
4] cells/mL for trochophores
and D-shaped larvae, respectively.
Structure and development of the apical organ in trochophores
of Spirobranchus polyserus.
Although expressed during many stages and not specific to biomineralization, engrailedis involved in regulating larval shell formation of chiton trochophores
(Lepidochitona caverna (Jacobs et al.
The transition stage from trochophores
to D-stage veligers was first seen at 22 h postfertilization and were present for only 2 h.