Figure 16.

External symptoms on yellow head virus genotype 1 (YHV genotype 1)-infected shrimp. (A) P. monodon showing signs of yellow head disease (YHD) Yellow (light gray in print version) to yellow-brown (dark gray in print version) discoloration of the cephalothorax. Three shrimp with (left) and without (right) YHD; (B) discoloration of the gill region. ((A,B) Reprinted from Elsevier Books, Samocha, Sustainable biofloc systems for marine shrimp, p. 23, Copyright (2019), with permission from Elsevier).