CONTENTS 



Page 



Introduction 1 



Downstream movement of lampreys 1 



Length and weight of migrant lampreys 2 



Duration of larval life 2 



Downstream movement of fishes 3 



Acknowledgments 3 



Literature cited 3 



Tables 4 



Table 



LIST OF TABLES 



Annual downstream movement of recently transformed and partly transformed 

 sea lampreys, adult native lampreys, and larval lampreys in the Carp Lake 

 River &om the winter season of 1948-49 through that of 1957-58 



2. Numbers of newly transformed sea lampreys migrating downstream in the Carp 

 Lake River during the winter of 1951-52, and data on weather, water temper- 

 ature, and water level for the period 



3. Numbers, average total length, and range of length of newly transformed sea 

 lampreys migrating downstream in the Carp Lake River during the winter of 

 1952-53, and data on weather, water temperature, and water level for the 



period , 10 



4. Numbers, average total length, and range of length of newly transformed sea 

 lampreys migrating downstream in the Carp Lake River during the winter of 

 1953-54, and data on weather, water temperature, and water level for the 



period 16 



5. Numbers, average total length, and range of length of newly transformed sea 

 lampreys migrating downstream in the Carp Lake River during the winter of 

 1954-55, and data on weather, water temperature, and water level for the 



period 22 



6. Numbers, average total length, and range of length of newly transformed sea 

 lampreys migrating downstream in the Carp Lake River during the winter of 

 1955-56, and data on weather, water temperature, and water level for the 



period 27 



7. Numbers, average total length, and range of length of newly transformed sea 

 lampreys migrating downstream in the Carp Lake River during the winter of 

 1956-57, and data on weather, water temperature, and water level for the 



period 33 



8. Numbers, average total length, and range of length of newly transformed sea 

 lampreys migrating downstream in the Carp Lake River during the winter of 

 1957-58, and data on weather, water temperature, and water level for the 



period 38 



iii 



