26 



personal observation of procuriiig a survey ol' the couditious of tlie vegetation 

 at the most possible and varied piaces. A short statement of the route of »Sal- 

 lingsund« will show this. We began by examiniug the Sound from Copenhagen 

 and northward, then followed the north coast of Zealand, further along the 

 south coast of Samsø to Ashoved, from there to the north along the coast of 

 Jutland to Aai-hus, into Kalovig and rouud Sletterhage and Hasenøre, along the 

 coast of Djursland to Udbyhøj in Randers Fjord, and thence northward into the 

 Kattegat to Ostre-Knold and Østre-Flak. We theu went in through the Lim 

 Fjord to Nykøbing and further through Sallingsund to Nissum Bredning whicli 

 was pretty closely examined before we returued the same way to Hals; across the 

 Kattegat (with various stations) to Stavns Fjord in Samsø; along the east coast of 

 Samsø, and through the Great Belt ou the Funen and Langeland side. After a 

 visit to Nakskov Fjord we proceeded north of Lolland, through Guldborgsund and 

 up along the east coast of Falster through Grønsund and the Bøgestrøm to 

 Masnedsund, through the Smaaland Waters and further south of (^mø through the 

 Great Belt to Nyborg, where the expedition ended. 



The points iuvestigated every where were: 1) if there was Zostera, 2) how 

 far out the vegetation reached, 3) on \vliat kind of bottom it was found, and 

 4) how the Zostera was developed with regard to the length and breadth of the 

 leaves, flowering shoots etc. A dredge formed by providing a lead with long nails, 

 was most often used for the investigations: but where the bottom was specially 

 firm it was found necessary to use a dredge with teeth (oyster dredge). 



The results of the single dredgings and hauls are given at the end of 

 this paper, and there the data are also added of the occurreuce of the Zostera as 

 given in the Journals of the Biologicai Station which Dr. Petersen has placed at 

 my disposal. I may therefore with regard to the details refer to this material 

 (observation material p. 47), which is arranged in groups according to the waters. 

 A synoptic view of the distriljution in the single waters may be given here, 

 illustrated by charts with respect to the Lim Fjord and the Kattegat. For the rest 

 I may especially refer to the above-mentioned excellent chart in Report X of the 

 Biologicai Station. 



-"to* 



1. The west coast of Jutland. Here scarcely any investigations were 

 made. I am only acquainted with the Zostera vegetation from the waters between 

 B'anø and the mainland (at Esbjerg) and from Ho Bay. As far as known, the 

 Zostera is wanting all along the opeu coast from Horns Reef and to Skagen ; it is 

 at all events certain that if the plant occurs anywhere on this tract, it is only at 

 single scattered spots. 



2. The Lim Fjord (Kg. 7). A coastal fringe of Zostera is found in all 

 the many estuaries (Brednings) and sounds of the Lim Fjord, but the vegetation 

 does not go deeper out than ca. Sfathoms; at the most exposed piaces in Nissum 

 Bredning (and also elsewhere in the western Lim Fjord), for example, off the 

 Helligsø bricktield and the Ramstrup hills, the vegetation is poor or is wanting 

 here and there; Nissum Bredning is ou the whole least covered, and the abun- 

 dance and richness of the vegetation increase towards the east, and also in the 



