of the Fishery Board for Scotland, 



405 



brings forward as proof the colours of tho fry roared in the basin. If 

 the colour were due to their surroundings, then all the fry should be the 

 samo colour, whereas the colours of the fry reared follow the colours of 

 tho parent fish from which the eggs and milt were taken. That greyish 

 cod frequent sandy banks he holds to be due to the instinct of the fish 

 leading it to ground where it will have greater immunity from its 

 enemies. He states that the fjord cod offers to tho hatcher tho best 

 guarantee for tho success of his labours. 



Hatching of Flat Fish. — The eggs of the flounder, which aro heavier 

 than those of tho cod, were hatched, and in three years attained a size of 

 7 to 8 inches in length. Plaice aro nearly exterminated, so specimens 

 cannot be obtained near Arcndal for hatching, and it is difficult to get 

 soles. 



Hatching of Lobsters.- ^Mr Dannevig has succeeded in hatching lobster 

 .ova detached from the mother, and reckons that it is much cheaper to 

 detach tho ova and hatch them in artificial apparatus than to keep tho 

 female lobsters in confinement and feed them till the embryos aro 

 liberated, and pay for the extra labour involved in tending the adults. 



Ho is of opinion that a rational trial of rearing lobster fry in quantity, 

 which he has demonstrated to bo possible on a small scale, ought to bo 

 made, though he doubts whether the number reared will be at first pro- 

 portionate to the expense. 



Mr Dannevig is strongly impressed with the absolute necessity of 

 restrictions being imposed to prevent the threatened destruction of 

 lobster fishing, and to combat the gradual decrease of many sea 

 fish, and for recuperating declining fisheries is convinced of the beneficial 

 results obtained by artificial hatching, the utility of which has been so 

 markedly shown by the labours of the U.S. Fish Commission. He instances 

 the destruction of tho oyster beds of Norway, which have, unfortunately, 

 a parallel in Scotland, and shows how, within the last twenty years, the 

 value of lobsters landed in Norway has decreased to the extent of 

 £30,000 annually. Only good is likely to result from the projected 

 visit of Mr Dannevig to the hatching ponds for lobsters that arc being 

 erected by the Fishery Board for Scotland. 



SWEDEN. 



Dr Rudolf Lundberg, Fishery Superintendent at the Royal Agricultural 

 Academy, Stockholm, who is already known for his report on the Swedish 

 Fisheries prepared for the Berlin Exhibition, has published a second part 

 of his Medddanden rorande Sverigcs Fiskerier. The volume contains apaper 

 on tho influence of the debris from the 1 lumberwaks 7 on the river fishing 

 in Sweden. It appears that in many rivers the accumulations of floating 

 rubbish are extremely injurious. A second paper gives a sketch of the 

 progress of Swedish fishery legislation, and a third reports somo investi- 

 gations into the natural conditions of the middle portions of the rocks 

 and islands near Stockholm in 1885-86. A large number of temperature 

 observations are given, and the various species of fish, molluscs, &c. are 

 registered. The rest of the volume is occupied with statistical matter relat- 

 ing to tho Swedish fisheries. 



DENMARK* 



In Donmark the fisherios aro placed under tho Home Department, the 

 superintendent and adviser in fishery matters being at present Lieutenant 



* We aro indebted chiefly to Lieutenant Drechsel and Dr C. G, Joh, Petersen, for 

 publications and information relating to the Danish fisheries. 



