• The seed lobsters arc transported to Fl/devigen under observa- 

 tion \Tith the customp.ry precc.utiono.ry measures and are placed there 

 in the hatching boxes, one in each room (coi..partnent)« If one 

 tried to put tv7o in erch roon the result Trould be worse than if you 

 had only one. The lobster's quarrelsome disposition keeps it aTaays 

 on the iTar-path. 



These hatching boxes are the same as are used in cod hatching 

 illustration - see fig» 7-8 ' 



Here the lobster also hatches the eggs, the youngsters float 

 ■up to the surface and art; dravm down by the ciorrcnt into boxes pro- 

 vided with a silk net in the bottom to hold back the youngsters. 

 There is meaning in the young being hurriedly separated from the 

 mother animal - otheri":ise they would be eaten upr 



From these silk netted boxes the young are taken up with a 

 small landing-net, as long as one v/orks experimentally it is then 

 important to control the results. If one goes over to Eass-raising 

 then you cannot practice - one :aust then use a more time-saving 

 method - even if isn't so exact* 



To reach more favorable results in the raising there are three 

 things one must be sure of: 



1. Presh running water 



2. Cleanliness 



3» Adequate food, 



f'linus even one of these things the following will quickly shew 

 its elf c 



If j''ou do not know the reason for this increase in the death- 

 rate, then an examination of the dead young will as a r ule give the 

 answer. A lot of cannibalism is blamed as a rule on unfavorable 

 food - or else too little. Too much food will be shovm by a greatly 

 stretched ventricle - little digestible food difficult to digest, 

 for example cooked egg yolk, will not go from the ventricle into 

 the intestine. It will cause constipationo ITear and tear on the 

 young (chiefly on the rostriaa and legs) means there v/ns too strong 

 a stream or the apparatus wasn't smooth enough. If the young are 

 infested v/ith bacteria and protozoa, then that is a sign that it 

 (apparatus) lacks cleanliness, etc. 



The rearing apparatus' construction appears in fig. 9. The 

 principle is that water is led into the bo:: in different places as 

 though one brought forth a v/eak rotary stream with a horizontal 

 axiso This is of essential importance for the young that gather 

 near the stream's axis will sinlc dovm into the flowing w-tero 

 Rotating the water around a vertical axis, therefore - as in the 

 American roaring apparatus - xvill form a death-trap at the base of 



70 



