Ruchey Inlet and the remaining few in the vicinity of that inlet. The farthest recapture was made 

 approximately 15 km. from the tagging place. 



In the spring of 1954, tagging operations were carried out in Knyazhaya, Valas-Ruchey, 

 Palkina Inlets and Kandalaksha Bay. The tag return amounted to 401 specimens or 20% (see Table 

 1). From 250 specimens tagged on April 26, we caught 50 specimens or 20% of the released fish 

 three days following tagging. One of the specimens was cau^t 2 km. from the place where it was 

 released on the Zolotaya Korga fishing grounds 4 hours following tagging. The return of herring 

 tagged on April 27 reached 19.0% within the first three days. The herring tagged in Palkina Inlet 

 on April 29 were caught again in Valas-Ruchey Inlet, and the herring released in the region of 

 Valas-Ruchey receiving point were caught in Palkina Inlet. 



One hundred and thirty specimens were tagged on April 21, 1954, in Zhemchuzhnaya Gulf. 

 No tag returns were observed during the first few days, due, probably, to the short period of fish- 

 ing. The herring tagged in April and May, 1954, in Kandalaksha Bay, were cau^t in June and July 

 in the region of the Tersky coast. Thus, tlie herring tagged on April 21 in Zhemchuzhnaya Inlet 

 were caught on May 8 in the vicinity of Kuz River, 120 km. from the place where the herring were 

 released. During June and July, in the region of the Tersky coast, we caught 20 herring specimens 

 released in Valas-Ruchey and Zhemchuzhnaya Inlets. 



The mean speed of movement of herring from the spawning grounds in Kandalaksha Bay to 

 the Tersky coast, where their feeding grounds are undoubtedly situated, was about 4.5 km. a day. 

 The herring tagged as No. 2179 in April 29, 1954, in Palkina Inlet (Tables 2 and 3) covered that 

 distance (7.7 km.) at the greatest speed. 



The herring tagging carried out in the White Sea showed that the tag type selected by the 

 Polar Institute is sufficiently effective. The herring stand the tagging satisfactorily. A number of 

 tagged specimens were recaptured 1.5-2 years later i'. A herring specimen bearing an analagous 

 tag spent 202 days in the Norwegian Sea. We must nonetheless assume that herring thus tagged 

 can scarcely endure that type of tag for more protracted periods of time. The tag is clearly no- 

 ticeable and may be easily detected even in large catches . 



The tagging of White Sea herring showed that reserves of these fish are very limited. Only 

 thus can we explain the exceptionally hl^ percentage of tag returns-- 9.2% in 1953, 20% in 1954 

 (Table 3). Moreover, we must keep in mind that no real fishing was conducted on herring during 

 the spring of these two years. 



We set 5 test traps in the spawning grounds where a considerable number of tagged fish 

 were caught. We wish to point out that 30-35 traps were set in Valas-Ruchey Inlet. It is evident 

 that by using such a large amount of fishing gear, the fishing intensity was multiplied several 

 times, and, therefore, the fishing industry thoroughly exploited different year classes within two, 

 at most three years, even when the year classes in question were more than ordinarily abundant. 



In 1953, all recaptures of tagged herring were obtained in the vicinity of the tagging region, 

 a fact that deserves particular attention. In 1954, twenty specimens were caught off the Tersky 

 coast, in the vicinity of the River Kuz in Olenits Inlet and near the Varzuga estuary. 



1/ In 1955, 9 tags, taken from herring caugjit from July to October 1955 in Kandalaksha Bay 

 were brought to PINRO. Specimen #976 was caught in 890 days, three specimens in 780 

 days, five specimens - 407 to 525 days. 



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