CONTENTS 



Page 



Introduction 1 



Collection of data 1 



Cruise plan 1 



Operation of Hardy Plankton Recorder 2 



One-meter net tows 2 



Laboratory examination of samples: 



One-meter net tows 4 



Hardy Plankton Recorder 4 



Temperature and salinity 6 



Drift bottles 6 



Literature cited 12 



FIGURES 



1. Distribution of surface salinity and positions of 1-meter net tows. Albatross III cruise no. 46, 



March 19 to April 2, 1953 2 



2. Distribution of surface salinity and positions of 1-meter net tows. Albatross HI cruise no. 48, 



April 24 to May 8, 1953 3 



3. Distribution of surface salinity and positions of 1-meter net tows, Albatross III cruise no. 50, 



May 25 to June 3, 1953 3 



4. Stages of development of haddock and cod eggs from fertilization to hatching 5 



5. Traversing microscope used for examining recorder gauzes 6 



6. Track of Albatross III cruise no. 46, (March 19 to April 2, 1953) giving positions for each 



gauze section of the surface Recorder 7 



7. Track of Albatross III cruise no, 46, (March 19 to April 2, 1953) giving positions for each 



gauze section of the 10-meter Recorder 7 



8. Track of Albatross III cruise no. 48, (April 24 to May 8, 1953) giving positions for each gauze 



section of the surface Recorder 8 



9. Track of Albatross III cruise no. 48, (April 24 to May 8, 1953) giving positions for each gauze 



section of the 10-meter Recorder 8 



10. Track of Albatross III cruise no. 50, (May 25 to June 3, 1953) giving positions for each gauze 



section of the surface Recorder 9 



11. Track of Albatross III cruise no. 50, (May 25 to June 3, 1953) giving positions for each gauze 



section of the 10-meter Recorder 9 



12. Distribution of surface temperature. Albatross III cruise no. 46, March 19 to April 2, 1953... 10 



13. Distribution of surface temperature. Albatross III cruise no. 48, first coverage, April 24 to 



May 2, 19 53 10 



14. Distribution of surface temperature. Albatross III cruise no. 48, second coverage. May 2 to 8, 



1953 11 



15. Distribution of surface tennperature. Albatross III cruise no. 50, May 25 to June 3, 1953 11 



TABLES 



1. Species of fish eggs and larvae (with species code letters) caught during 1953, Albatross III 



cruise no. 46, March 19 to April 2; cruise no. 48, April 24 to May 8; cruise no. 50, 



May 25 to June 3 13 



2. Date, time, and position for temperature and salinity records in relation to 1 -meter tows 



and Hardy Plankton Recorder gauze sections Albatross III cruise no. 46, March 19 to 

 April 2, 1953 ^ 14 



3. Date, time, and position for temperature and salinity records in relation to l-n-ieter tows 



and Hardy Plankton Recorder gauze sections Albatross III cruise no. 48, April 24 to 



May 8, 1953 18 



4. Date, time, and position for temperature and salinity records in relation to 1 -meter tows 



and Hardy Plankton Recorder gauze sections Albatross III cruise no. 50, May 25 to June 3, 



1953 24 



5. Stages and sizes of fish eggs and larvae taken with l-nneter net on Albatross III cruise no. 46, 



March 19 to April 2, 1953 28 



6. Stages and sizes of fish eggs and larvae taken with 1-meter net on Albatross III cruise no. 48, 



April 24 to May 8, i953 31 



