WALTERS: ECOLOGY OF HAWAIIAN SERGESTID SHRIMPS 



Table 3.-Continued. 



'DD— Deep Day tows (0-1,200 m): T18 lour tows, T22 six tows. 

 DN — Deep Night tows (0-1,200 m): T18 five tows, T22 three tows. 

 SN — Shallow Night tows (0-400 m): T18 seven tows, T22 five tows. 

 D — DAY Horizontal tows. 

 N — NIGHT Horizontal tows. 

 M— MOON Horizontal tows. 



Table 4.-Feeding chronology of sergestids from DSB III. 



'See text. 



depths, but seldom in numbers greater than five or 

 six for a 3-h tow. The average population density 

 estimated from all horizontal tows was 1.31 per 100 



m'-. Daytime tows caught larger numbers than 

 nighttime tows, the population density from 

 daytime horizontal tows being 2.10 per 100 m-. The 



807 



