CONTENTS 



Page 



Introduction 1 



Collection and treatrnent of sannples Z 



Presentation of data 3 



Fishes 7 



Vertebrates other than fishes 20 



Phytoplankton 2,0 



Invertebrates 2.0 



Sunrimary 27 



References 29 



FIGURES 



No. Page 



1. East Lagoon, Galveston, Texas iv 



2. Mouth of lagoon and adjacent area, showing location of plankton sets at 

 culverts iv 



3. Setting plankton net at culverts, mouth of East Lagoon 2 



4. Water tennperatures at culverts (November 1953 - December 1955) 5 



5. Water temperatures at culverts (January 1955 - May 1958) 5 



6. Salinities of water samples at culverts (August 1954 - May 1958) 6 



7. Percentage occurrence of arrow worms in categories of abundance 

 (November 1953 - May 1958) 21 



8. Percentage occurrence of copepods in categories of abundance (November 

 1953 - May 1958) 22 



9. Percentage occurrence of barnacle nauplii and cyprids in categories of 

 abundance (November 1953 - May 1958) 23 



10, Percentage occurrence of crab zoeae and megalopa in categories of 



abundance (Novennber 1953 - May 1958) 25 



TABLES 



No. Page 



1. Plankton net sets 3 



2. Occurrence of B. patronus (larvae) 8 



3. Occurrence of Ancfioa mitchilli diaphana 9 



4. Occurrence of Sciaenidae (larvae) 16 



5. Occurrence of Sparidae (larvae) 17 



6. Occurrence of various fishes (and turtle) captured or observed, Novenn- 

 ber 1953 - May 1958 27 



111 



