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1. Delimitation of Spawning areas by means of quantitative egg observations, 

 particularly to the North of Scotland and towards the Fisher Bank in the case 

 of haddock, and off the N.E. coast of England in the case of cod. 



2. Study of the physical and hydrographical conditions in the spawning areas. 



3. Determination of the dispersal of larval and post-larval stages. 



4. Study of the food of larval and post-larval stages, in connection with the col- 

 lection of microplankton and nano plankton. 



5. Study of the natural causes of mortahty in larval and post-larval stages. 



England. 1 — 3) Cod eggs were collected in April on lines from Spurn Head 

 — Great Fisher Bank and Tyne — Spurn. Very few were taken. It was possible 

 that the voyage was not undertaken early enough to catch the larvae before they 

 drifted away from the spawning-ground. At stations where eggs were taken in 

 the quantitative net, a haul with the Petersen trawl was made, and the eggs 

 obtained kept alive until they reached a stage of pigmentation at which they could 

 be identified. This enabled the proportion of cod and haddock eggs present to 

 be ascertained. 



4) Plankton samples were taken concurrently with egg collections on the 

 above mentioned cruise. 



Scotland. 1^ — 5) Owing to the incidence of the season coinciding with the 

 temporary lack of a research vessel. Sections 1 — 5 of the programme, dealing as 

 they do with the delimination of spawning areas etc., have not yet received attention, 

 but records of previous spawning seasons are being systematically worked up. 



Norway. During the year 1921/22 the following work has been carried out: 



Measurements of samples of cod have been collected on a large scale through 

 the whole of the winter-season at a series of convenient spots along the whole 

 of the coast where spawning cod (skrei) is fished for, and during spring at several 

 points in Finmark where younger fish is obtained. The following number of measure- 

 ments has been obtained: 



Finmark 26.792 cod 



Lofoten 12.151 - 



Southern Norway 5.087 - 



Of haddock about 5.900 have been measured in Finmark. 



Scale-samples have been collected from both species in sufficient numbers. 



In March-April a small fishing vessel was hired for a cruise in the Lofoten 

 waters in order to investigate the hydrographical conditions obtaining during the 

 skrei-fishing. Three sections, viz: one across the mouth and one across the narrow, 

 northern part of the West Fjord and one section along the whole length of the 

 Fjord were repeated thrice. The hydrographical elements considered were tempera- 

 ture, salinity, oxygen saturation and alkalinity. Water samples for counting the 



