The Sea turns over :  : and where it does, nutrients upwelling from the depths create lush planktonic feeding zones for the world's fisheries. 

<br/><br/> Mosiac 5: 25-31. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EXPEDICIONES.<br/>OCEANOGRAFIA.
<br/><br/><label>Subjects--Geographic Terms: </label><br/>OCEANO ATLANTICO.<br/>OCEANO PACIFICO.