8. BASSI, D.E., and BASCO, D.R., "Field Study on an Unconfined Spoil Disposal 

 Area of the Gulf Intracoastal Waterway in Galveston Bay, Texas," Sea Grant 

 Publication TAMU-SG-74-208, Texas A & M University, College Station, Tex., 

 Jan. 1974. 



Dredge material obtained from maintenance dredging of the gulf Intracoastal 

 Waterway is presently disposed in unconfined, submerged areas alongside the 

 channel. Of interest, for economic and environmental reasons, is the disper- 

 sion of the dredged material with time. Grain-size analysis of bottom sediment 

 samples, depth soundings, and wooden stakes were employed in field investiga- 

 tions to determine the approximate location of material from one such disposal 

 area over a 5-month period after disposal. 



9. BAXTER, K.W., and RENFRO, W.C, "Seasonal Occurrence and Size Distribution 

 of Postlarval Brown and White Shrimp Near Galveston, Texas, With Notes on 

 Species Identification," Fishery Bulletin, Vol. 66, No. 1, 1967, pp. 149- 

 158. 



Postlarvae of the genus Penaeus were collected at the entrance to Galveston 

 Bay, Texas, over a 4-year period and along Galveston Island's beach during a 

 1-year period. Postlarval brown shrimp, P. azteaus , and white shrimp, P. 

 setifems , were the predominant penaeids caught. Morphological characters, 

 seasonal size differences, and the occurrence of juveniles in adjacent nursery 

 areas were used to identify these species. Seasonal occurrence, size distribu- 

 tion, and measures of relative abundance are given for the two species. The 

 uniform size of the postlarvae in collections taken along the beach and the 

 bay entrance indicated that small shrimp grow very little when they are along 

 the beach. 



10. BEARDSLEY, G.L., Jr., "Distribution in the Water Column of the Migrating 

 Juvenile Pink Shrimp, Penaeus duorarton (Burkenvoad) , in Buttonwood Canal, 

 Everglades National Park, Florida," American Doatoral Dissertations, 

 University of Miami, Miami, Fla., 1967. 



A 1-year study was made of the vertical and horizontal distribution of 

 migrating juvenile pink shrimp in Buttonwood Canal, Everglades National Park, 

 Florida. The sampling gear consisted of 13 conical nets mounted in iron frames 

 evenly spaced across the canal. Samples were 1 hour long and were taken during 

 hours of darkness on the ebbtide. Sampling was scheduled each month to coincide 

 with the full, new, and one of the quarter moons. Results indicated that juve- 

 nile shrimp are most abundant on the surface of the canal during nights of the 

 full moon and the last-quarter moon. Juvenile shrimp also respond to changes 

 in current velocity moving off the bottom at the end of the f loodtide and mov- 

 ing back to the bottom at the end of the ebbtide. Changes in lateral distribu- 

 tion also occur. These changes can be related to current patterns in the canal 

 or to the amount and distribution of floating vegetation in the canal. Studies 

 were also made on abundance, size, and sex ratio. 



11. BEERS, G.D., "The Role of Dredging in the Ecosystem Management Program 

 Proposal for the Los Angeles Harbor," Summaries of the Seoond Annual 

 Environmental Engineers and Science Conference, University of Louisville, 

 Louisville, Ky., 1972, pp. 14-16. 



In an ecological study of the dredging of Los Angeles Harbor, surface and 

 substrate sediment samples were analyzed for particle-size distribution, total 



