blocked off. The obstructions located between long. 

 80°30' and 80°40'W can then be easily marked and located 

 on the fishing chart. 



It should be kept in mind that an obstruction may 

 deteriorate or be removed after it is reported. Particular 

 attention should be paid to type of gear and damage sus- 

 tained because other gear may not be affected. Generally 

 loran fixes were used to derive latitude and longitude 

 readings. However, some slight inaccuracies may exist 

 when loran fixes were not provided. 



ACKNOWLEDGMENT 



We extend our appreciation to Charles M. Roithmayr 

 and Elmer J. Gutherz for reviewing this manuscript. 



LITERATURE CITED 



GRAHAM, G. L. 



1975. Bottom fishing obstructions. Texas-Louisiana and Gulf. 

 Texas A&M Univ. Sea Grant Publ. TAMU-SG-76-506. 



APPENDIX TABLE 



Codes to Gear and 

 Damage 



Gear 



Abbreviation 



Scallop trawl 



PT 



Lampara seine 



LP 



Purse seine 



PS 



Gill net 



GN 



Lift net 



LN 



Separator net 



SN 



Shrimp trawl 



ST 



Tumbler dredge 



TD 



Fish trawl 



FT 



Scallop dredge 



SD 



Midwater trawl 



MT 



Beam trawl 



BT 



Clam dredge 



CD 



Damage 



Abbreviation 



Torn webbing 



T 



Lost whole rig 



L 



Hang-up 



Z 



Gear fouled 



F 



