200- 



DISSOLVED 



Figure 1.— Dissolved oxygen levels (mL • L'') at depth during each of the 4 days of diving 

 (lines were drawn by eye) and for the UBC sampling, and relative depth distributions of the 

 main abundances of the four large crustaceans observed. Oblique bar = zone of prawn mortal- 

 ity; stipple = area devoid of pink shrimp after low DOg water intrusion. Numbers = dates in 



October 1986. A ( ) = 6 October, B (•••) = 7 October, C ( — ) = 8 October, D (-•-•) 



= 9 October, £(•—•)= 14 October (UBC profUe). 



604 



