GUIDE TO TABLES 



Table I»— =Record of Oblique Hauls made with Plankton Nets dviring 

 Cruises 11-16 in 1950. 



Station? The letter preceding the station number is used to 

 designate the vessel from which the collections were madeo The 

 four participating vessels are designated as follows § B - 

 Black Douglas ; C - Crest; H - Horizoni P =• Paolina T » Station 

 numbers are made up of h to 6 figures separated into two groups 

 by a doto The figures before the dot represent the number of 

 the line on which the station occurs^ the figures following the 

 dot represent the position of the station on the lineo Station 

 lines are numbered from north to souths stations on lines from 

 inshore to offshore o Refer to figure !„ the station chart for 

 I95O5 showing all stations occupied during cruises 11 through l8c 



Position "No lato,, W. longer The positions given represent 

 the best estimate of the position of occupancy of each station© 



Date g Month given in Roman numerals,, the day of the month in 

 Arabics thus VIII -5 is August 5o 



Hour g The time indicated is approximately that of the mid-depth 

 of the haul as the net was being brought obliquely upward. The 

 hours are given on a 2li"hour basis| thus 1930 is equivalent to 

 7s30 p«m. 



Duration of Haul g Given in minutes to the nearest quarter 

 minute • 



Depth (Meters) s Depth of the stratum fished^ in meters, 



Volo of Water Strained s In cubic meters (see preceding text)* 

 Estimates given in parentheses were not based on current-meter 

 readings. 



S, Factor s Standardized haul factor (for explanation,, refer 

 to Ahlstrom 19l6). 



Table II. —Record of Pilchard %gs., 1950. 



Number of Nonnal Eggs ? Number of normally developing pilchard 

 eggsc 



