The use of vertebrae as indicators of the age of the northern black bullhead Ameiurusm. melas (Rafinesque).
D005399:Fishes; D006652:Histological Techniques; D006801:Humans; D017241:MELAS Syndrome; D016501:Neurites; D013131:Spine / Q000033:anatomy & histology*
FISH; SPINE/anatomy and histology