Dannefvig, Alf 



1916 Beretning om for s/karb eider ne ved sto.tens hisniiner- 



station ved Korshavn sonrneren 1916. Anrsberetning 

 ved. Norges Fiskerier for 1916, h. 1, pp« 221-233. 



Report on the experiments at the State's lobster rearing station 

 .at Korshavn, the summer 1916. 



The rearing station at Korshavn -mas founded by Assistant of 

 Fisheries Sund in 1913 and was managed by him for the first two years. 

 However, as I started to work for the government and as I.Jr. Sund wanted 

 to be free from the responsibility for the lobster station in order to 

 work on other things, the Director of Fisheries rocoirmiended that I 

 should take over the management. 



On telegraphic request of June 21 this year from the Director of 

 Fisheries, I went to Korshavn on June 24 in order to inspect the 

 rearing station and get it ready for vfork. 



Du.e to the war no vrork had been done at the rearing station since 

 the svimmer of 1914, and itc found it necessary to have a good deal of 

 repair v^orks and improvements done, although v;e had to limit these as 

 much as possible because of the snail budget. 



(The following paragraphs concern repair works, etc.) 



On July 7 and July 10, a total of 247 spavm lobsters (114.7 

 kilogra:as) was purchased from the lobster store-houses at Ulvesund, 

 and Korshavn. However, as t?ie lobsters developed slov;ly this yerj?, 

 wo obtained no young until July 21, at which date the vrork vms 

 started. 



The spavm lobsters which were ready for hatching were kept in 

 rearing boxes in T/hich the propeller ^vas rotating only for a short 

 tim.e every day in order to renew the water; the lobsters Y/ith rel- 

 atively undeveloped spawn vrere kept in the usiial lobster boxes and 

 vrere transferred to the hatching boxes as the development proceeded, 

 while the lobsters vrtiich then had finished their hatching vrere sold 

 again. 



From the 247 spavra lobsters v;e got a little more than 33,000 

 young, a very poor result. If vre count on an average of only 5,000 

 eggs on each lobster, v/e should have obtained 1,235,000 young, i.e., 

 40 times more than we really got. As Sund ,,^ives a similar result for 

 1913, \Te take it that the hatching in the boxes is very deficient; 

 Sund supposed the cause to be a little vrorm, Kistriob dell a, but 

 since this vrorm v;as not to be found this year, there musV be another 

 cause for the loss. In my opinion, the adult lobster itself is to 

 blame; it eats the eggs off its companions, and as shovm by Sund, it 



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