Hol torn-Life. 



191 



'74 1899, we examined some cod wliirli luid hrcn caiiL'ht at 8tcne 

 in Bø. Some Avero of a roddisli coldur. (iUhts were paler and 

 resembled ocean-eod („skrei"). 



The roe was not fully developed. 



In the stomachs were found Polychcta. Hi/ns codrrtuftis etc. 



A single specimen had Lcnxva hrancliiaUa on one (if its ojHs. 



On '-"A 1899 we bouo-ht in the Jøkel Fiord KM-od which had 

 been tished by line in the fiord. Shape and colour were those of 

 the ocean-cod (..skrei"), in a few of the larger females the roe was 

 very loose. Schizopods and Anipliipods were found in the stomachs. 



I have also referred to the food of the coil iu the paper (pioted 

 above, p. 14. 



(iadus rireiis. Lin. 

 In the beginning of February. ISDT. I took part in a iishing 

 expedition with nets for ..skrci". lu the course of this, we also 

 caught a number of ,,sei" (Gadn,'! riroi.y). Cf. my paper referred 

 to above, p. 17. 



Molcu molra. Lix. 

 Towards the end of April 1897, 1 went with a fisherman to 

 lish with nets near Røst. Among the rest, we also caught large 

 specimens of Moha. As a rule the stomach hang like a balloon 

 out of its mouth, but in one instance, bones of Gachts ægiefinus 

 could be identified. 



l>rut>)))ius bivsiiic, Asc. 

 In the stomach of Brosm'nis, which was caught near Rest in 



April 181)7, LUhudes mnjn was often found. 



Lycodca sarsi. Collett. 

 "A 1900. The Folden Fiord, .530 m. (1). 



MalMug ciUumis, O. F. Mull. 



On -'"/i 1899, dead specimens were found drifting in the Trold- 

 tiordsund (between Rolfsø • and Ingø). Both males and females 

 were found, and on examination it was seen that they had spawned. 

 It is said that it is quite usual to find dead capelan floating in 

 Finmark in the spring, and many theories have been started to 

 otter an explanation for this. Some think that the death of the 

 capelan is to be accounted for by the coldness of the water; others 

 supi)0se that it must be attributed to unsuitable food etc. 



But none of the theories advanced seem very satisfactory. 



Clupm Jiarengiin, Lin. 



'Vs 1896. Henningsvær, from the stomach of cod. 



Herring catches are made in many of the fiords in Nordland 

 in the winter, so as to provide bait for the codfishery in Lofoten. 



The supply of the socalled baiting herring („agnsild") is con- 

 veyed bv small steamers. On 'Vs 1897 I went on board one of ' skin of the sucked out cod. 



these steamers (S/S «Svolvær") from Svolvær in Lofoten to the 

 Ler Fiord in Helgoland, where a (luantity of herrings had been 

 caught. On "A f examined the plankton at the bottom of the 

 fiord at the place wheie the catch had been made. It was not 

 very rich. On the suifacc, I got a few s|)ecimens of O'llhona 

 similis, as well as nauplii of Copepoda. \n a saiujile fiom — 25 

 m. were found the following: — 



Cal. finmarcliicus r 

 Fseudocal. clongutus r 

 Acartia longiremis rr 

 Microsetcllu atlantica c 

 ^fl■fridia Innga rr 

 ynii/ilii iif Coiti-podd -|- 



Tcnipci-aturc and salinity were found to lie tli.sti-ibuted as 

 follows: — 



'"A 1897, The Ler Fiord, 



t. s. 



ni. 3",.5 C. .-JS.Ol "Ao 



in ., 3,S - 33,73 „ 



Bottom 2.5 ., 3.8 - 33,73 „ 



The herrings were rather meagre. I made some measurements, 

 and found that the smallest were 1.5 cul in length, the largest 20 

 cm., the usual length was 16, 17, 18 cm. (The measurement was 

 made from the tip of the snout to the commencement of the division 

 of the tail fin). . Indications of. roe and milt were present iu the lar- 

 gest specimens. The stomachs were empty, but most of tiieui had 

 a white mass in the intestine. 



One of the fioids which almost always in uiuter supplies Lo- 

 foten with „agnsild" is the Kvænangen Fiord. ^ly observations 

 hi this fiord (^Vi and '"A 1899), testify great uniformity iu tem- 

 perature and salinity during the winter. 



This probably has much to do with the fact that plankton 

 Copepods may be found right up to the surface of the water. At 

 any rate, I observed quantities of Calainis finniarrliirus in a sample 

 from 0—5 m. on "/, 1899. 



As the food of the herring can thus rise so far up, it is ex- 

 plicable that the herring itself follows it, and comes so far up in 

 the water that it can be reached by the tackle employed. 



AngtiiUu nilgaris. Trirr. 

 °/4 19U0. The Salten Fiord 1, 15 — 20 m. (juniores). 



]\f!/.rl)w ghdinoaa. Lix. 

 During the cod fishery at Sundero in Yesteraalen, in the be- 

 ginning of February 1897, I noticed that large numbers of fish 

 were destroyed by this destructive animal. In some cases the 

 robbers had not had a chance of escape, but were found under the 



