46 Alf Wollebæk. [No. 12 
of their occurrence, while Dr. ArppzEcLLør and eurator GRIEG had 
announced in their publication on the fauna in western fiords that 
the species is to be found in several localities. However seeing 
that the aforesaid dredges had in every case been employed, the 
specimens recorded were naturally few in number. 
The use of the prawn-trawl, the establishment of the fishery, 
and the systematic fishing experiments made to find new grounds, 
have thus in the last ten years considerably altered our ideas with 
regard to the abundanee of this erustacean. 
I will give below a short account of the srounds along our 
coast, where Pandalus borealis is known at present to oceur in 
large quantities. 
1. Drammen Fiord. On that portion of the fiord which 
stretehes inwards from Svelvik, and occasionally even as far up as 
Gullaug, Pandalus has now for a considerable number of years 
been regularly fished, principally in the winter-time. It is not 
taken here in the deeper portions of the fiord, where judging by 
the depth one would almost expect to find it, but in about 28—40 
fathoms on slopes that shelve down towards the deeper mid-portion 
of the fjord. When trawling in the deepest parts (a good 60 
fathoms) no Pandalus was taken, and the black mud brought up 
by the trawl smelt strongly of sulphuretted hydrogen (H:S). No 
organisms of any size were captured here. 
As early as 1865 Professor G. O. Sars?) stated that the 
outer portion of the Drammen Fiord is å well-known fishing ground 
for Pandalus. From the reports of old fishermen at Svelvig the 
fishery is at least about sixty years old and is probably older. In 
our time, now that regular trawling has begun and Pamndalus is an 
ordinary commodity and very much cheaper than it used to be, the 
old *elip” or hoop-net formerly employed in the Drammen Fiord 
has been practically superseded. [For fishing-season, mode of cap- 
ture, &c., see *Ræker og Rækefiske” pages 23—25|. 
2. Christiania Fiord. Inside Drøbak. AÅ description, 
accompanied by a map, of the different grounds where Pandalus 
1) , Beretning om en i Sommeren 1865 foretagen Zoologisk Reise ved 
Kysterne af Kristiania og Kristiansand's Stift.* Nyt Magazin f. Naturv. l5de 
b., Iste h. 
