63 



The spawning period must therefore have been close at hånd aud in the 

 beginning of January iuvestigation of the Lurapenns at Lyø vvas again undertaken: 



D. 4 — 1 — 03. W. S. W. from Lyø, 20 fm. Yoiing-fish trawl on l>ottom: a large number 

 uf Lumpentis, which were measured. 



The list of the measurements is given on p. — . It will be seen that the 

 spawning time was ah-eady over in the western Baltic by January 7th, as: 



all the femalcs recognised were spent with contracted ovaries and old eggs. 



Some days later a large number of Lumpenus were taken at another place 

 io the western Baltic, one of which was ripe. 



D. 6 — 1—03. W. of Skjoldnæs, 18 — 21 fm. Young fish trawl on bottom : a large number 

 of Lumpemis*. Only one of the iemales examined had rjj^c, running spaicn; this was clear as 

 glass, slightly pale yellow with colourless oil globules. The other females were spent. 



In addition to these brief notes on the appearance of the eggs, Johs. 

 Schmidt also inscribed in the journal a list of the measurements made of the 

 Lumpenus taken at this station. This list is not given here, as the groups it 

 shows quite correspond to those shown by the measurements from Lyø on the 4th. 



From the 1903 investigations we raay conclude, that the Lumpenus spaum 

 in December in the western Baltic 



Of the spawning in other regions we have only a single observation: 



D. 14—1—04. Hestehoved in W. N. W., 4 miles, 11 fm. Small English trawl; 3 Lum- 

 penus, one female and two males, the female with well developed spaicn. 



The pelagic young of Lumpenus were not determined before the spring of 

 1902. In that year a great number were taken in Fænø Soimd in March and 

 Ajiril. None were taken at tlie end of April or in May. Pelagic Lumpenus young 

 were taken on an excursion in March to the true Baltie. 



D. 19 — 3 — 02. s. E. of Moen lightship, ca. 16 fm. Young-flsh trawl on bottom, 2 hauls, 

 each of 10 minutes: many pelagic. young of Lmiipemis, a few fish of other species. — Pelagic 

 net on pole, 10 minutes: a few Lumpenus young, as also other fish young. 



In 1903 we took the pelagic Lumpenus young in Fehruanj — May. The 

 large number of pelagic Lumpenus young taken in May in the western Baltic 

 will be evident from a glance at the summary for 1903 (Tab. 3 A). Au examina- 

 tion of the separate journal extracts (Tab. 1), which form the basis of the sum- 

 mary, will show that most of the Lumpenus 3'ouug taken in May come from 

 bottom-hauls, so that we cannot determine whether they have lived on or uear 

 the bottom. 



Ehrenbaum and Strodtmann state that they found the pelagic Lumpenus 

 young in great numbers in Fehruanj 1903 in the western Baltic and a single 

 specimen on May 19th in Kadet Channel (Station V, in the western Baltic near 



*) Johs. Schmidt endeavoured to utilize this rich catch of Lumpenus by cutting the fish 

 in two and flxing the pieces as bait on cod hooks. 



D. 7—1—03. 2.30 p. m. S. E. of Sprogø, 16—25 fm.: set 200 hooks, baited with pieces 

 of Lumpenus. 



Same date, N. E. of Sprogø, 3 — 5 fm.: set 400 hooks, baited in the same way. 



D. 8 — 1 — 03. The hooks in deep water (16 — 25 fm.) taken up in the forenoon. They 

 gave 29 cod, most of which were 13 — 16'/,, indies (ca. 34—43 cm.), and 18 dåbs. Very litlle bait 

 was left on the hooks. 



Same day, afternoon. The hooks in shaUow water (3 — 5 fm.) taken up. Thej- gave 

 22 cod and 3 dåbs. A good deal of bait remained on the hooks. 



