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Central and Eastern European Marine Repository (CEEMaR) >
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Institute “BIOR”, Fish Resources Research Department >
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1980 >
Please use this identifier to cite or link to this item:
http://10.0.0.195:8080/dspace/handle/11099/894
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| Title: | К методике определения абсолютного запаса балтийского шпрота |
| Other Titles: | To the methods of determination of Baltic sprat total stock |
| Authors: | Швецов, Фауст Георгиевич
Поливайко, Алла Григорьевна
Грауман, Галина Борисовна |
| ASFA Terms: | Ichthyology |
| Issue Date: | 1980 |
| Publisher: | Институт морского рыболовства и рыбопереработки, г. Росток, ГДР и БалтНИИРХ, г. Рига, СССР совместно |
| Citation: | Fischerei-Forschung, Fischereiliche Untersuchungen der DDR und der UdSSR in der Ostsee, Рыбохозяйственные исследования ГДР и СССР в бассейне Балтийского моря, 18(2). p. 67-68 |
| Abstract: | The attempt was made to determine total stock of sprat in the Baltic Sea without use of fishery statistics and data on age composition. Total eggs abundance in subdivision 26 was determined according to the results of ichthyoplankton survey. The total sprat stock of this area was determined according to total eggs abundance, sprat fecundity, males and females correlation and the ratio of spawning females. The relative sprat stock in the Baltic Sea subdivisions was determined from the materials of trawl counting survey made in May. Total absolute stock of Baltic sprat for subdivisions 25, 26, 28, 29, 32, that was made up 6.0 million centners for the beginning of 1977 was calculated from the correlation of relative sprat stock in subdivisions and absolute stock in subdivision 26. |
| URI: | http://www.ceemar.org/dspace/handle/11099/894 |
| Appears in Collections: | 1980
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