Movie 5.

Initial shunting flow of blood flow from the DA to the CCV. 3-D reconstructions of a confocal image stack of the fin region of a 2 day-old Tg(kdrl:egfp)^s843, Tg(gata1:dsred)^sd2Tg double transgenic zebrafish, showing flow initially shunting from the DA directly to the CCV with no perfusion of the main circumferential loop of the primitive pectoral artery. The movie shows the same fish as in Movie 6 but at a slightly earlier time point.