they hatched successfully, the lateness of the ser.son and transpor- 

 tation nay have caused the sirall nuiiiber of eggs present on the 

 fenales* 



^-tteiupts were made to rear the lobsters in carboys and nquaria, 

 but T/ere unsuoccssfulo It rras believed that the current \7as too 

 strong at sheddint^ ti2.:eo 



Dannevig, Llf 



1920 ri/devigens .utklaekningscnstalt. Beretning for teruinen 



1 null 19^9 - 30 juni 1920» AarsLcretning ved* iJorges 

 Fiskerier 1920, hefte 1, pp. 50-61, illus, 



Fl/devigen hatchery, Peport for perioc"'. July 1, 1919 to June 30, 1920. 



Note: This article v/as not translated ccnpletely, A sumnary of the 

 principal points fTllcvrs: 



The causes of tlie nortality v/ere found: 



1» Must rencve dead larvae and food renains 



2» liiast have adequate current to prevent cannibalisn 



I. galvanized iron rearing apparatus was built. It had a double 

 bottom, with the upper bottom of perforated celluloid. Current cane 

 in through the bottom and up through the celluloid, then out through 

 windows in the upper parte ",/ater hose was placed in the top to give 

 a rotary notion. Some tines the apparatus Viras successful; soi:e tines 

 it \7as a failuree It was difficult to clean the celluloid perforc.t- 

 -ions. 



Cannibalisn was prevanted by the water current and the fine food, 

 Minced mussels were especially good. 



T■^::er±y-fovT egg-bearing female lobsters yielded 6,700 young. 

 This number VJ-as satisfactory because of the late season an! many eggs 

 had already hr;tched» 



About 400 fourth stag.ers were put out and some released in 

 earlier stages. 



49 



