114 INTERNATIONAL CONFERENCE, STOCKHOLM, 1899. 



APPENDIX IV. 



Marking of Fishes in the Waters of the IIegion of the Baltic 



AND THE North Sea. 



The marking of fishes in order to facilitate a systematic control and 

 investigation as to their migrations and growth, and also to the period- 

 icity and frequency of their spawning seasons, is, in most cases, to be 

 regarded as the most certain and direct means of arriving at reliable 

 and satisfactory conclusions. The method of marking salmon, already 

 known and practised in Great Britain a number of years ago, has of 

 late, for some ten years, been taken up and carried on in Norway, as 

 may also have been the case in some of the other countries here repre- 

 sented. In Denmark the markiug of plaice has been practised of late 

 years. As to Sweden, it has been proposed and agreed upon more than 

 once that such a proceeding ought to be more generally and methodically 

 made use of, as, for instance, at the general conferences on questions 

 regarding the fisheries of Sweden, held at Gothenburg and Stockholm 

 in 1891 and 1897, when, at both those occasions, there were also present 

 several distinguished specialists as representatives of the other Scan- 

 dinavian countries ; but this plan, although unanimously assented to 

 and approved of, has nevertheless not as yet been carried into executiou, 

 owing perhaps to a certain extent to the circumstance of there not being 

 any common plan and method of marking adopted for the whole Baltic 

 region, a condition which was especially made an essential point of by 

 the Stockholm Conference. 



Being of opinion that the question of marking fishes, more especially 

 of the different species of sea-salmon and flat-fish, and also, if possible, 

 other kinds of fishes of all the coasts and waters of the different 

 countries represented at this meeting, no doubt belongs to the compet- 

 ence of this Conference, and still more, when considering that there are 

 some most distinguished gentlemen here present, being of unquestion- 

 able renown as specialists on this subject, I beg to propose that this 

 question be admitted on the programme of the meeting in order to be 

 duly discussed and decided upon according to circumstances. 



FiLiP Tkybom. 

 Stockholm, June lith. 1899, 



