H. Kiær, — Tromsøsundets fiske. 167 
dock, herring, plaice, sometimes also whiting, sea- 
eat and dab and during the summer green cod are 
for sale. From the open sea very often come for sale 
halibut, Norway haddock, tusk, ling, seacat 
and skate. Seldom salmon and trout are sold 
there; they are sent to the great exporting firms at Trond- 
hjem. 
The fishing is mostly done with lines upon good 
fishplaces, where the bottom is hard (Lithothamnion-ground), 
and the current is strong, and thus a rich animal life 
that decoys the fish is to be found. In such good fish- 
places the current prevents the mud, which as fine partic- 
les is carried away in the seawater to settle. On big sto- 
nes occasionally large quantities of stone algees (Lithotham- 
nion) of all sizes, are developed to the size of a child's 
head. Within and upon the stonealges a superfluity of 
fixed animals grow up such as ascidians, hydroids, spon- 
ges, actinians, mussels, worms etc. In addition lots of 
crawfish (shrimps and amphipods), snakes, starfish, crossfish 
and periwinkles are in the habit of seeking shelter within 
the cavities of the stone algæs. The reason why the cod- 
fish seeks such places is partly because the current carries 
with it a quantity of smaller animals, which so to say 
drive right into the mouth of the fish, partly because 
upon the stonealgæs are living such a multitude of ani- 
mals, as, when venturing outside the stonealgæs, are 
immediately caught by the fish as a desirable prey. For 
fishing in the Tromsø Sound I have used a small eel 
ground seine of a length of about 30 metres, I will here 
note the result of some draught with the ell ground seine. 
22d. June 1901, — 4 — 0 fathoms, 
Cod (Gadus callarias), 60 spec., length 32—60 cm. 
Green cod (G. virens), 40 spec., —. 12—19. .» 
Plaice (Pleuronectes platessa), I spec,  — 58 » 
