480 



Dynamics of the Ecosystem 



riiolo a. a. Pike 

 Fig. IS.da. North Pacific right whale, showing adaptation of mouth for plankton 

 feeding. A cluster of barnacles can be seen on the lower lip. 



Fig. ism. 



Photo J. T. Ruud 

 Stomach of southern right whale split open, showing mass of euphau- 

 siids ("krill") that had been eaten. 



links, and hence is relatively efficient, no doubt accounts for the suc- 

 cessful maintenance of such large, warm-blooded mammals in the sea. 

 Most of the sizable marine carnivores are the result of longer food 

 chains. Many adult fish, such as cod, haddock, halibut, and flounders, 



