Vol 1, 1950

CalCOFI Reports, Vol. 1, 1950

Contents

 

Page

INTRODUCTION

7

HOW THE WORK IS DONE 

11

 The Ships

The Station Plan

11

 Collection of Data

Processing of Data

13

 Instrumentation

18

   Midwater Trawl

High-Speed Gear

18-19

   Floating Fish - Larvae Trap

Plankton-Sample Splitter

20

   ChlorinityTitrator

ASOP

20

   Other Projects

Use of Soundings to Locate Sardine Schools

21-22

 

 

WHAT HAS BEEN ACCOMPLISHED 

23

 Studies of the Sardine's Environment

23

 Physical Oceanography

23

   Upwelling

Mixing

23-25

   Evaporation

Internal Waves

25-29

   Delineation of Spawning Areas

Problems of Processing

29

 Chemical Oceanography

30

 Biological Oceanography

30

     Marine Botany

30

     Marine Invertebrate Plankton

33

         Crustacean Plankton

33

         Dispersal by Water Currents

35

         Plankton Volumes

35

 Recruitment Research

37

     The 1950 Sardine Spawning Season

37

     Relation of Sardine Spawning to Oceanographic Conditions

39

 Work on Other Fishes

40

     Young of Other Fishes Associated with the Sardine

41

         Jack Mackerel

Anchovy

41

         Saury

Other Food Fishes

41

         Fodder Fishes

41

     Adults of Other Fishes

41

         Northern Anchovy

Herring-Like Fishes

41-42

         Albacore

42

 The 1950 Young Sardine Surveys

43

     Methods of Approach

Methods of Collection

43-44

     Limitations

The 1950 Work

44

 Availability

44

 Behavior and Physiology

46

     Feeding Behavior

Schooling Behavior 

46

     Miscellaneous Observations

46

         Electrical Stimulation of Fish in Sea Water

46

     Conditions of Experiments

Definitions of Terms 

46-47

     Tabulations of Records and Results

Conclusions

47

 Continuing Studies

47

     Length Frequencies

47

     Age Determinations

47

         Racial Studies

48

         Vital Statistics

48

 Marine Birds and Mammals

49

 

 

SUMMARY

50

PLANS FOR 1951

51

APPENDIX 1: Personnel  Engaged in Research Under

 

     California Cooperative Sardine Research Program

52

APPENDIX 2: Current  Projects Under California

 

     Cooperative Sardine Research Program

54

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