Parish and Heins, 1991


Parrish, J.D., Heins, D.C. and Baker, J.A., 1991. Reproductive season, clutch parameters and oocyte size of the johnny darter Etheostoma nigrum from southwestern Mississippi. American Midland Naturalist, pp.180-186.

Associated characteristics

Species Development state Trait Primary Data Secondary Data
Etheostoma nigrum Egg Egg size after water-hardening 1.19 1.19 mm