F I G U R E 3 in Reproductive biology of the electric lanternfish Electrona risso (Myctophidae) and the bigscale fishes Melamphaes polylepis and Scopelogadus mizolepis (Melamphaidae)

F I G U R E 3 Electrona risso ovarian development. Reproductive phases based on Table 1. Macroscopic development in female gonads (left panels) and histological cross-sections of ovaries (right panels). A, atresia; CA, cortical alveoli oocyte; GVBD, germinal vesicle (nucleus) breakdown oocyte; GVM, germinal vesicle migration oocyte; HYD, hydrated oocyte; PG, primary growth oocyte; Vtg1–3, primary to tertiary vitellogenic oocyte; yg, yolk granules; yv, yolk vesicle. Photography by K. Wieben.