Daniievig, Alf 



1933a Beretning fra ?l/devigens utklelaiiiigscmstalt for 



terminer! 1930-1931» Aarsberetning ved* IIorgeE 

 Fisl-erier 1931 (1933), nr, 1, pp. 105-110, illus. 



Report from FJ./dev5.gen hauchery f or t he period 1930/l931 



le Lobster 



".iy concern virith the rearing of lobster started in 1916 Virhen I 

 took over the manoj^eiiont of the apparatus at Korshavn in Vest-Agder, 

 which was built after thy /jnerican pattern by counselor Oo Sund. 



■ Neither Sund's nor ny own efforts led to tlie goal, and since that 

 time also the ^'ancricans have abaKdoned their ovm nethode 



In 1918 we started sniall experi.ients at Fl/devigen; these v/ere 

 gradually extended so far as th.e results inade them possible. 



The resiilts of the last years' work ore as follows: 



• Year Pry gatViered Reared to 4th Per cent in 4th 



The percentage in the 4th stage is calculated on the basis of 

 the nuj:lber of young lobsters used ii:. the experiments. A part of 

 t-he neiTly hatched brood had to be liberated in the sea because of 

 the lack of space. 



As you will see, the mn.v^er of newly hatched young lobsters 

 has increased all the time; there are no dif. iculties in getting 

 a sufficient quantity of youngs '.'fcen we except 1926, when the 

 i7hol- 7;ork was discontinued b ecause of an infection in our salt 

 water basin, the number of young in the "bottom" stage has also 

 increased considerably during the last years. The profit has 

 generally been good in soiae of the apparatus since 1924, but on the 

 other hand additional attempts a.t ijnprovement have failed. These 

 more or less unsuccessful experiments have, of course, reduced the 

 percentage of the profit. 



Y/lien the nc.T building takes place, the apparatus v-ill be mr.de 

 in accordance v;ith the best errperimental apparatus, only somewhat 

 larger o 



80 



