Ultrastructure of micropylar cells in the pre-ovulatory follicles of Pacific herring, Clupea pallasi Valenciennes

alimentos anatomia anatomia animal anatomie anatomie animale anatomy animal animal anatomy animal aquatique animales animals aquatic animals aquatic organisms arenque body parts bony fishes ceiuapa (grupos de especies) cells cellule citoplasma clupeoidei cytoplasm cytoplasme endocrine glands female genital system fishes fisiologia fleur flores flowers fonction physiologique foods gineceo glande endocrine gynoecium hareng herrings inflorescence inflorescences inflorescencias isscaap groups of species organisme aquatique ovaire ovaries ovarios ovulation partes del cuerpo partie du corps peces peces marinos physiological functions physiologie physiology plant anatomy poisson de mer poisson osseux produit alimentaire protoplasm protoplasma protoplasme reproduction saltwater fishes sistema urogenital ultraestructura ultrastructure urogenital system vertebrados vertebrates vertebre