25 



in these regions. In the Skager Rak indeed the 127 cod young were taken in 

 two hauls of altogether 25 minutes with the young-fish trawl: 



D. 28 — 4 — 04. Skaw lightship in the south, V/., miles, 40 fm., young-fish trawl — 12 fni., 

 2 hauls of altogether 25 minutes: 127 cod young, 65 hadclock young, 6 whiting young, 3 .voung of 

 Gadus esmarkii as also many other fish young. 



lu April (16th— 22nd, see Tab. 1) great quantities of cod eggs, which 

 hatched out on stauding a short time, were taken in the Lim Fjord. The young 

 themselves however were very scarce and small. 



In the Kattegat, investigations were made both in April and May; pelagic 

 cod young were taken in both raonths, yet most in April. 



In the Great Belt we also found the pelagic young cod in April and May; 

 but if we consider that over 5 hours were occupied in fishing, the numbers taken, 

 62, are not cousiderable. In the Little Belt (see Tab. 18 — 5, Baaring Vig) we took 

 12 pelagic cod young in two hauls witli the young-fish trawl, each of 10 minutes. 



The condition in April and May ivas thus, that the pelagic cod young were 

 most ahundant in the Skager Bak and the tvestern Baltic with the Little Belt, less 

 numeroiis in the Kattegat and Great Belt. 



In June we have likerwise taken relatively by far the greatest number of 

 pelagic cod young in the Skager Rak and western Baltic, few in the Kattegat, a 

 single small specimen in the Sound, none in the Great Belt. In the true Baltic 

 there seem to have been no pelagic cod young in June. 



In June the pelagic cod young were being displaced in our catches by the 

 bottom-stages. The young-fish trawl was used on the bottom, sometimes on grounds 

 near the coast covered by Zostera or algæ, sometimes on the clear, usually soft 

 bottom in deeper water. Bottom-hauls with this apparatus were also made before 

 June, but without taking any bottom-stages of the cod, just as, on the other band, 

 the use of the trawl in intermediate water-layers during July and following months 

 gave no pelagic young of this species. 



The differences in the distribution of the cod young, which we have 

 already been able to show for the pelagic stages, are even more conspicuous when 

 the young pass over to the bottom-stage. 



The accompanying chart shows the catches of the bottom-stages of the 

 cod in 1904. The stations where these young were taken with the young-fish 

 trawl on tlie bottom are marked by red crosses, the numbers calculated for hauls 

 of 10 minutes are deuoted by a number inside the cross, and the date is added. 

 The piaces where bottom hauls with the young-fish trawl were made after the Ist 

 of July, without cod young being taken, are marked by a black cross, also with 

 the date added. 



As will be seeu from the chart, we have in 1904 taken no bottom-stages 

 of the cod at all from Anholt to the east of Zealand as far as Møen, and to the 

 west of Zealand as far as Gjedser. Xor have we found them in the Lim Fjord 

 in 1904. In the northern Kattegat and in the true Baltic, south and east of 

 Møen, we took single specimens but seldom more than one in a haul. The result 

 was quite different iu the Little Belt and western part of the western Baltic. At 

 these piaces the chart has scarcely room for the red crosses, and the numbers in 

 these ofteu run to two figures. 



4 



