CONTENTS 



Page 



Report of the Director '■ 



General ^ 



Laboratory facilities ' 



Laboratory activities ^ 



Publications '■ 



Manuscripts submitted or in press ^ 



Library -^ 



Museum -' 



Public relations ^ 



Shrimp biology (mariculture) program 3 



Larval culture 5 



Larval physiology 5 



Mass culture 5 



Algal culture 6 



Food and experimental environments 6 



Cvilture of juvenile and adult shrimp 9 



Experimental seeding 10 



Shrimp dynamics program 12 



Predicting shrimp abundance 13 



Offshore index 13 



Index at Galveston Entrance 13 



Juvenile index 13 



Spawner-recruit relations 13 



Population dynamics 14 



Timing of harvest 14 



Effects of fishing intensity 16 



The growth and distribution of juvenile pink shrimp in the estuaries of Everglades 



National Park l6 



Distribution 16 



Growth 21 



Estuarine program 21 



Evaluation of engineering projects and estuarine data 22 



Model tests of Galveston Bay hurricane protection plans 25 



Evaluation of estuarine data 25 



Ecology of western Gulf estuaries . 25 



Abundance and size of organisms 25 



Environmental comparisons 28 



Growth of oysters in natural and altered areas 28 



Gulf oceanography program 31 



Reconnaissance survey 32 



Bottom sediments 32 



Waters in the southeastern Gulf 33 



Circulation dynamics 33 



Biological applications 35 



Space applications 36 



Remote sensing of the pelagic fishery environment off Oregon: a study of coastal up- 

 welling and the Columbia River plume 36 



Preparation of a bibliography of ocean- surface features significant to fisheries 37 



Special report: a modified benthic sampling sled 37 



Cover photo; View of concrete tanks and ponds used for experintiental rearing of shrimp at the East Lagoon Field Station. 



ill 



