IV-241 



use of Mission Bay waters where the following may be caught: 

 bonito, barracuda, spotfin, and yellowfin croakers, rubberlip and 

 shiner surfperch, California halibut, jacksmelt, and topsmelt. It 

 is anticipated that good fishing conditions will continue as long 

 as the waters remain free from pollution. 



The University of California maintains a small wildlife preserve 

 near Rose Creek Inlet which is used primarily for bird watching 

 and bird study of waterfowl, gull, and shorebirds. Because it is 

 illegal to discharge firearms within the City of San Diego, there 

 is no waterfowl hunting on the Bay. 



The quality of Mission Bay waters depends primarily on the physical 

 characteristics of the Bay. The temperature, clarity, and dis- 

 solved oxygen concentration in the entrance channel tends to 

 approximate that of the adjacent ocean. Although dissolved oxygen 

 nitrates and phosphates are low, the presence of phytoplankton and 

 suspension of bottom materials caused by water motion contribute 

 to turbidity. As measured by col i form indicators, the bacterial 

 quality of Mission Bay is excellent. 



There is virtually no direct discharge of waste to Mission Bay 

 except for overflow from Sea World's display tanks, and infrequent 

 overflows from the municipal sewerage system and boats. The use of 

 marine heads in the Bay is discouraged. There are drying beds for 



