<p><strong>Fig. 4.75. (A) </strong>Skijack tuna (Katsuwonus pelamis) swimming in a loose school, called a shoal.</p>

Fig. 4.75. (A) Skijack tuna (Katsuwonus pelamis) swimming in a loose school, called a shoal.

Image courtesy of NOAA, Duane Raver Jr. (USDA)