Fig. 7

Images of garfish gonad tissue: a ripe female (marked oocytes of three different development stages were v—maturing oocytes or oocytes in the stage of vitellogenesis in which the yolk granules that appeared first in the periphery of the cytoplasm increased in size and number dispersing within the cytoplasm, mn—ripe oocytes in which the fusion of several oil droplets resulted in the formation of a large oil droplet, which migrated towards animal pole together with the nucleus and hy—“hydrated oocyte” in which the yolk granules fused forming a continuous mass of fluid yolk and with its formation the spawning is initiated), b ripe male (marked cells were SP—Spermatocytes—small oval cells; ST—Spermatids—cells with larger and rounded nucleus and SZ—Spermatozoa—the cells developed from spermatids when they were rejected into the cyst cavity as the spermatogenesis was coming to an end)