FISHERY BULLETIN: VOL. 74, NO, 4 



Table 5.-Diet of sergestids from DSB III. 



'Included witfi calanoid copepods. 



^Including gastropod larvae, radiolarians, pteropods, fish eggs, and fish scales. 



Table 6. -Numbers of Hawaiian sergestids captured, 1970-73. 



Half-red species 



Sergestes atlanticus Milne-Edwards 

 Sergestes cornutus Kr^yer 

 Sergestes erectus Burkenroad 

 Sergestes armatus Kr^yer 

 Sergestes vigilax Stimpson 

 Sergestes orientalis Hansen 

 Sergestes tantillus Burkenroad 

 Sergestes consobrinus Milne 

 Sergestes sargassi Ortmann 

 Sergestes pectinatus Sund 

 Sergia fulger)s (Hansen) 

 Sergia scir^tillans (Burkenroad) 



All-red species 

 Sergia gardineri (Kemp) 

 Sergia bigemmea (Burkenroad) 

 Sergia inegualis (Burkenroad) 

 Sergia bisulcata (Wood-Mason) 

 Sergia maxima (Burkenroad) 

 Sergia tenuiremis (Kr0yer) 

 Petal idium suspiriosum Burkenroad 



546 



17 



1,371 



1,113 



271 



1,030 



21 



647 



497 



1,541 



1,118 



1,610 



3,096 

 398 

 149 

 350 

 2 

 147 

 170 



SERGESTES ATLANTICUS 



d 



'O"! JAN -MAR 



September 1972 oblique series gave a figure of 3.79 

 per 100 m'-, and the May 1973 oblique series yielded 

 0.88 per 100 m'-'; these figures are probably close to 

 the maximum and minimum population density. 



Recruitment was highest during the third 

 quarter (July-September), the only time of year 

 when immature shrimp less than 4 mm CL were 

 taken. The largest shrimp were most abundant 

 during the second quarter (April-June). 



Diet (Table 5) 



Only three individuals examined had recogniz- 

 able stomach contents: a calanoid copepod {Pleu- 



808 



CARAPACE LENGTH Imm) 



Figure 2.-Quarterly size-frequency distribution of Sergestes 



atlanticus. 



romamma), an amphipod, and fragments of larval 

 bivalve shells. 



Sergestes cornutus Kr«Syer 1855 

 Vertical Distribution 



Only four individuals were captured in horizon- 



