(25), LM 4cS ( 14), LM 49 (L5), and LM 50 (3). 



In summarizing the information obtained from the Marron Expedition, 

 it is a seasonal factor that seems to be the main cause of the few fish col- 

 lected in spite of the rich plankton present. If the area were again studied 

 in the months of December and January, a greater quantity of fish larvae 

 might be obtained. This supposition is based on the early spawning period 

 of many fish in the Northern hemisphere. 



List of Plankton Stations 



LM 1 20° 12' S., 70 32' W.; 20 miles W of Iquique, Chile; June 15, 1954 



0740-0810; 10 cc. vol. 

 LM 2 20° 12' S., 70°53' W.; 40 miles W of Iquique, Chile; June 15, 1954 



3 cc. vol. 

 3 20° 12' S., 71° 14' W., 60 miles W of Iquique, Chile; June 15, 1954 



2 cc. vol. 



20° 12' S.. 71°36' VV.; 80 miles W of Iquique, Chile; June 15, 1954 



1525-1555; 33 cc. vol. 



20°12' S., 71°57' W.; 100 miles W of Iquique, Chile; June 15, 1954 



1740-1810; 123 cc. vol. 



20°00' S., 71°53' W.; about 100 miles WNW of Iquique, Chile; June 



15, 1954; 96 cc. vol. 



19°36' S., 70°21' W.; 5 miles W of Punta Pichalo, Chile; June 20 



1954; 0115-0145; 68 cc. vol. 



18°27' S., 70°28' W.; 5 miles W of Cabo Lobos, Chile; June 19 



1954; 0640-0710; 34 cc. vol. 



18°30' S., 70°42' W.; 20 miles W of Arica, Chile; June 23, 1954 



1030-1100; 93 cc. vol. 

 LM 10 18°30' S., 71°3' W.; 40 miles W of Arica, Chile; June 23, 1954 



1415-1445; 19 cc. vol. 

 LM 11 18°30' S., 71°25' W.; 60 miles W of Arica, Chile; June 23, 1954 



1720-1750; 173 cc. vol. 

 LM 12 18°30' S., 71°46' W.; 80 miles W of Arica, Chile; June 23, 1954 



2005-2035; 316 cc. vol. 

 LM 13 18°30' S., 72°7' W., 100 miles W of Arica, Chile; June 23, 1954 



2250-2320; 156 cc. vol. 



LM 14 18°51' S., 71°31' W., 70 miles WSW of Arica, Chile; June 24, 1954 

 0400-0430; 41 cc. vol. 



LM 15 19° 12' S., 70°55' W., 47 miles NW of Pisagua, Chile; June 24, 1954 



0945-1015; 6 cc. vol. 

 LM 16 19°42' S., 70°41' W., 25 miles WSW of Pisagua, Chile; June 25 



1954; 1200-1230; 1 cc. vol. 

 LM 17 20°28' S., 70°43' W.; 35 miles SW by W of Iquique. Chile; June 30 



1954; 1700-1730; 175 cc. vol. 

 LM 18 20°43' S., 71°17' W.; 70 miles SW by W of Iquique. Chile: June 30 



1954; 2135-2205; 60 cc. vol. 

 LM 19 21°04' S., 72°02' W.; 105 miles W. of Punta Lobos, Chile; July 1 



1954; 0315-0345; 70 cc. vol. 

 LM 20 21°04' S., 7]°41' W.; 85 miles W of Punta Lobos, Chile; July 1 



1954; 0610-0640; 70 cc. vol. 



• 55 



