BATHYPELAGIC SQUID BATHYTEUTHIS 



115 



Figure 28. — Vertical section, 65°W, 56°-63°S; salinity°/oo, sigma-t. Capture points of 



Bathyteuthis abyssicola. 



900 m and two from 600 m) while the successful tows were from 

 1200 to 2400 m. Seven tows were made during Cruise 5 in the region 

 covered by the section for 65 °W. The five successful tows were made 

 between 1300 m and 2400 m and the unsuccessful tows were from 

 800 m and 2500 m. All capture-plots on the temperature section lie 

 below the 2° isotherm; seven captures lie between 1,5° and 2° C, 

 five between 1° and 1.5° C and two between 0.5° and 1.0° C. Most 

 of the plots coincide with the simultaneous temperature values. 

 Three tows caught exceptionally large numbers of B. abyssicola (10, 

 12, and 20 specimens) at depths of 1556, 1370, and 2100 m; these plots 

 lie close to the 1.5° isotherm. The remaining tows took 29 specimens. 

 Of the six unsuccessful tows, five were made at less than 1000 m in the 

 subantarctic region or in the antarctic region where the temperature 

 was warmer than 2° C. 



The capture-plots on the salinity section all fall below the 34.70%o 

 isohaline ; only three are at less than 34.72%o and seven are at greater 

 than 34.73 %o in the maximum salinity core. All captures are plotted 



