21 
green-cod on the western shores of Norway. — This was in the month of 
July 1901. When Dr. Hjort, in September 1901, on my invitation, went 
to Skager-Rack in his large and good ship, in order to supplement my 
investigations into the occurrence there of the fry of the cod, we found »0 
pelagic young cod, however, in the whole Skager-Rachk, but fry of whiting and 
horse-mackerel (Caranx), whereas some fry of the cod was found on the 
bottom, already somewhat larger. Nor did I find pelagic fry of cod of any 
consequence in the Skager-Rack, in June 1901, when I was on board the 
Sallingsund (only one specimen, 1 inch long), but much fry of whiting and 
a little of haddock; so it is to be supposed that the limit of the distribution 
of the pelagic fry of cod must be drawn from South Norway over towards 
England somewhere. Pelagie fry of whiting, however, from "/, inch (e. 1 
etm.) and upwards, was found as far down as in the Great Belt. This was 
the first addition to the investigations this year, but there is one more, 
which is as essential, respecting the migrations of the older cod in our 
seas. The Cattegat has repeatedly been investigated this year, with the 
Sallingsund, the first time in the month of June. My result, arrived at by 
questioning the fishermen at the Skaw, by seeing the Swedish fishermen 
draw long lines on Groves Flak and Fladen in the eastern Cattegat, and by 
setting long lines myself, was that there were exceedingly few cod im the Cat- 
tegat and Skager-Rach in this month. Some few smaller cod might be got 
at Hirtsholmene on zostera bottom, but it was only at one single spot; at 
other places 600 hooks, baited with herring and worm, gave only 6, 10, or 
no cod at all. — Swedish fishermen maintained with certainty that there 
was no cod now from Hanstholmen to Sweden; they could only get a few 
whitings. 
In August and September 1901 the Cattegat was again investigated 
and, with Dr. Hjort's assistance, the Skager-Rack. The Swedish fishermen 
in the eastern Cattegat now got a few more cod on their long lines and 
many small haddock. We found the same with trawl at the Skaw and in 
the northern Cattegat. The cod, however, were always small, and only at 
one single place (at Hirtsholmene, as in June) we found more considerable 
numbers of them. Fry of whiting was found pelagically, as it were, always, 
everywhere, and in all sizes; but fry of cod only upwards of 2 inches (ec. 
5 cm.) at the bottom and very rarely. Near the Skaw, on c. 20—30 fathoms 
of water, it was most frequent. 
These investigations have taught me that the Cattegat at times (im the 
summer) can be almost empty of cod, at any rate of large, good cod. To get 
the precise data I applied to the Inspector of the Fisheries within the Skaw. 
It appeared then from the journals at hand, of 1898, 1899, and 1900, that 
c. 30 plaice-seine cutters in the Cattegat had stated, for each fishing, how 
many pounds of cod they had caught, which figures might be extracted 
from the said journals. Lieutenant Ewald, R. N., who gave me this in- 
formation, was kind enough to extract the necessary data from the many 
