54 
table VI. The results may here be regarded as endeavours to ascertain whether 
the apparatus and methods can be used in the different waters. For the Limfjord, 
the true Kattegat, the Sound, the central parts of Isefjord and the Baltic at Stevns 
and Møen, however, the stations are more numerous, and I believe that we can 
conclude from these, that of the parts investigated the Baltic is poor as 
regards rough weight, likewise the shallower parts of the Sound, but not the 
deeper; the 3 localities of the Kattegat also show fairly small values; 
the western Limfjord as a rule is rich. Except in the Limfjord we must 
have many more investigations, however, to he able to judge of the size of the 
rough weight for these waters as a whole. The available results give encouragement 
however to make further investigations; in other words the method can also be 
used in these waters. See also the Plates III— VI. 
Consideration of the results with regard to the dry matter (see Chart No. 
III), im which the calcareous matter of the Molluses and Echinoderms 
has been deducted, gives a somewhat different picture. The North Sea with its 
large quantities of Åsterias rubens is no longer the richest locality; this is the 
water east of Venø with 351 gm. per 10 m.?; several other places in the Limfjord, 
Thisted with 282 gm. and Skive Fjord with 287 gm. come near the 286 gm. per 
10 m.? of the North Sea. The one station at Samsø has 259 gm. The values for 
the Limfjord lie on the whole between 150—200 gm., yet the western parts in 
spring have only 51 gm. High quantities of dry matter were also found in the 
deep Sound north of Elsinore, 174 gm.; but the open Kattegat has but small 
values, 20—49 gm., the Baltic even smaller 8—15 gm. The Isefjord shows 
varying values from 23—110 gm. 
That the Baltic in the part lying between Rigen and Denmark will really 
show small quantities of bottom-animals on further investigation, I do not doubt, 
nor that large parts of the Kattegat are moderately populated and that the Lim- 
fjord has on the whole a greater population; but in these regards we can hardly 
conclude more from these investigations at their present stage. 
The locality which excluding the Baltic gives the smallest quantity of dry 
matter, namely 0.5 gm. per m.?, is the white clean sand in the Sound at a depth 
of ca. 2 meters; its rough weight however was 17.: gm. per m.? This is the only 
locality investigated which lies near the coast and from a topographical standpoint 
is related to the localities investigated by Fried. Dahl in 1893 in the mouth of 
the Elbe; per m.? he sometimes found quantities of Gammarids up to over 1000 
in addition to usually small Molluses and worms, but his one case of a large 
quantity was 47.1 cm.?, otherwise the mass was but 7.8 cm.? down to almost 
nothing; results which show, that the shallow, sandy coasts in spite of their great 
richness at certain times of the year, mostly of small animals, are yet far from 
equalling the deeper parts especially of fjords. I may mention here the interesting 
observation of Dahl, p. 183, that at Dahme in the Baltic he found many Crusta- 
cea in August 1890, but in December 1889 at exactly the same spot he found no 
animals at all. 
A rapid inspection of the tables V and VI will show, however, that there 
is on the whole several quite characteristic differences between the fauna in the 
deeper parts of the Kattegat with the Belts and the fauna in the fjords and especially 
