К методике определения абсолютного запаса балтийского шпрота.
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, the ratio of males and females, 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 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.
Main Authors: | , , |
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Format: | Journal Contribution biblioteca |
Language: | Russian |
Published: |
1980
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Subjects: | Baltic sprat, Ichthyoplankton surveys, Total eggs abundance, Relative sprat stock, Absolute sprat stock, ASFA_2015::F::Fish stocks, ASFA_2015::F::Fish eggs, |
Online Access: | http://hdl.handle.net/1834/15839 |
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dig-aquadocs-1834-158392021-05-19T06:57:31Z К методике определения абсолютного запаса балтийского шпрота. To the methods of determination of Baltic sprat total stock. Shvetsov, F.G. Polivaiko, A.G. Grauman, G.B. Baltic sprat Ichthyoplankton surveys Total eggs abundance Relative sprat stock Absolute sprat stock ASFA_2015::F::Fish stocks ASFA_2015::F::Fish eggs 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, the ratio of males and females, 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 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. 4. ausgabe des sonderheftes über fischereiliche untersuchungen der DDR und der UDSSR in der Ostsee. 4. выпуск совместного сборника научных статей по вопросам рыбохозяйственных исследований ГДР и СССР в Балтийском море. Published 2019-11-22T11:51:13Z 2019-11-22T11:51:13Z 1980 Journal Contribution Not Known 0428-4984 http://hdl.handle.net/1834/15839 ru pp. 67-68 Baltic Sea |
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component |
Bibliográfico |
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biblioteca |
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Europa del Oeste |
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language |
Russian |
topic |
Baltic sprat Ichthyoplankton surveys Total eggs abundance Relative sprat stock Absolute sprat stock ASFA_2015::F::Fish stocks ASFA_2015::F::Fish eggs Baltic sprat Ichthyoplankton surveys Total eggs abundance Relative sprat stock Absolute sprat stock ASFA_2015::F::Fish stocks ASFA_2015::F::Fish eggs |
spellingShingle |
Baltic sprat Ichthyoplankton surveys Total eggs abundance Relative sprat stock Absolute sprat stock ASFA_2015::F::Fish stocks ASFA_2015::F::Fish eggs Baltic sprat Ichthyoplankton surveys Total eggs abundance Relative sprat stock Absolute sprat stock ASFA_2015::F::Fish stocks ASFA_2015::F::Fish eggs Shvetsov, F.G. Polivaiko, A.G. Grauman, G.B. К методике определения абсолютного запаса балтийского шпрота. |
description |
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, the ratio of males and females, 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 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. |
format |
Journal Contribution |
topic_facet |
Baltic sprat Ichthyoplankton surveys Total eggs abundance Relative sprat stock Absolute sprat stock ASFA_2015::F::Fish stocks ASFA_2015::F::Fish eggs |
author |
Shvetsov, F.G. Polivaiko, A.G. Grauman, G.B. |
author_facet |
Shvetsov, F.G. Polivaiko, A.G. Grauman, G.B. |
author_sort |
Shvetsov, F.G. |
title |
К методике определения абсолютного запаса балтийского шпрота. |
title_short |
К методике определения абсолютного запаса балтийского шпрота. |
title_full |
К методике определения абсолютного запаса балтийского шпрота. |
title_fullStr |
К методике определения абсолютного запаса балтийского шпрота. |
title_full_unstemmed |
К методике определения абсолютного запаса балтийского шпрота. |
title_sort |
к методике определения абсолютного запаса балтийского шпрота. |
publishDate |
1980 |
url |
http://hdl.handle.net/1834/15839 |
work_keys_str_mv |
AT shvetsovfg kmetodikeopredeleniâabsolûtnogozapasabaltijskogošprota AT polivaikoag kmetodikeopredeleniâabsolûtnogozapasabaltijskogošprota AT graumangb kmetodikeopredeleniâabsolûtnogozapasabaltijskogošprota AT shvetsovfg tothemethodsofdeterminationofbalticsprattotalstock AT polivaikoag tothemethodsofdeterminationofbalticsprattotalstock AT graumangb tothemethodsofdeterminationofbalticsprattotalstock |
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1756076793430802432 |