База данных: Электронная библиотека
Страница 1, Результатов: 9
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1.
Подробнее
Article
B11
Babayan, V.
Estimation of Unaccounted Catch Values / Babayan, V., Vasilyev, D., Bulgakova, T. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 18-26. - 2014
~РУБ Article
Рубрики: Modeling
Stocks
Sturgeon
Caspian sea
Poachers
TAC
Аннотация: Various analytical approaches to estimation of unaccounted catch values are considered. The result of application of the approach based on dynamics production models and data on amount of confiscated illegal gill nets for estimation of unaccounted catch of Caspian sturgeon are presented.
Доп.точки доступа:
Vasilyev, D.
Bulgakova, T.
B11
Babayan, V.
Estimation of Unaccounted Catch Values / Babayan, V., Vasilyev, D., Bulgakova, T. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 18-26. - 2014
Рубрики: Modeling
Stocks
Sturgeon
Caspian sea
Poachers
TAC
Аннотация: Various analytical approaches to estimation of unaccounted catch values are considered. The result of application of the approach based on dynamics production models and data on amount of confiscated illegal gill nets for estimation of unaccounted catch of Caspian sturgeon are presented.
Доп.точки доступа:
Vasilyev, D.
Bulgakova, T.
2.
Подробнее
Article
V30
Vasilyev, D.
Robust Likelihood Functions for Estimation of Parameters of Stock-Fishery Models / Vasilyev, D., Babayan, V. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 52-57. - 2014
~РУБ Article
Рубрики: Modeling
Calculations
Fishery
Efficiency
Mistakes
Design
Аннотация: Some approaches to increase the robustness of likelihood functions in their application for estimation of parameters of stock assessment models are considered.
Доп.точки доступа:
Babayan, V.
V30
Vasilyev, D.
Robust Likelihood Functions for Estimation of Parameters of Stock-Fishery Models / Vasilyev, D., Babayan, V. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 52-57. - 2014
Рубрики: Modeling
Calculations
Fishery
Efficiency
Mistakes
Design
Аннотация: Some approaches to increase the robustness of likelihood functions in their application for estimation of parameters of stock assessment models are considered.
Доп.точки доступа:
Babayan, V.
3.
Подробнее
Article
V30
Vasilyev, D.
The Use of Tagging Data to Increase Reliability of Stock Assessment Results / Vasilyev, D., Babayan, V., Bulgakova, T. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 58-61. - 2014
~РУБ Article
Рубрики: Modeling
Stocks
Tagging
Calculations
Equations
Mortality
Аннотация: Some aspects of incorporation of tagging data into stock assessment procedure by means of cohort models are discussed.
Доп.точки доступа:
Babayan, V.
Bulgakova, T.
V30
Vasilyev, D.
The Use of Tagging Data to Increase Reliability of Stock Assessment Results / Vasilyev, D., Babayan, V., Bulgakova, T. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 58-61. - 2014
Рубрики: Modeling
Stocks
Tagging
Calculations
Equations
Mortality
Аннотация: Some aspects of incorporation of tagging data into stock assessment procedure by means of cohort models are discussed.
Доп.точки доступа:
Babayan, V.
Bulgakova, T.
4.
Подробнее
Article
K75
Korzhev, V.A.
The Estimation of the Size and Management of the Fisheries of the Harp Seal Pagophilus groenlandicus of the White Sea Population / Korzhev, V.A. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 87-94. - 2014
~РУБ Article
Рубрики: Seal
Fishery
Abundance
Productivity
Mortality
Modeling
Аннотация: The paper presents a detailed description of the mathematic model to be used to estimate abundance of the White Sea harp seal population and the input data required for the model implementation. The paper also describes the model parameters and methods of their assessment. Abundance of the harp seal from 1946 to 2012 was estimated. The data from research literature were used to analyse the dynamics of fertility parameters of the While Sea harp seal population and to show its effect on the stock assessment.
K75
Korzhev, V.A.
The Estimation of the Size and Management of the Fisheries of the Harp Seal Pagophilus groenlandicus of the White Sea Population / Korzhev, V.A. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 87-94. - 2014
Рубрики: Seal
Fishery
Abundance
Productivity
Mortality
Modeling
Аннотация: The paper presents a detailed description of the mathematic model to be used to estimate abundance of the White Sea harp seal population and the input data required for the model implementation. The paper also describes the model parameters and methods of their assessment. Abundance of the harp seal from 1946 to 2012 was estimated. The data from research literature were used to analyse the dynamics of fertility parameters of the While Sea harp seal population and to show its effect on the stock assessment.
5.
Подробнее
Article
M68
Mikheyev, A.A.
Application of Model of the Open Exploited Population to Assessment of the Local Stocks / Mikheyev, A.A. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 95-108. - 2014
~РУБ Article
Рубрики: Hydrobionts
Calculations
Modeling
Stocks
Fishery
Migrations
Аннотация: The regression methods are shown not to allow assessing an open local stock as in the case of the Leslie and De Lury classic models. To solve this problem, a method based on Kalman filter is suggested. Besides, there is given a description of some methodical weak points of De Lury model, which make it less preferable regarding to Leslie's model. This work presents the Leslie's Generalized Model with Kalman filter (LGM KF), which is aimed to reconstruct a stock dynamics during fishery using the temporary series of catches on local areas in the presence of migratory flows and neglected catch.
M68
Mikheyev, A.A.
Application of Model of the Open Exploited Population to Assessment of the Local Stocks / Mikheyev, A.A. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 95-108. - 2014
Рубрики: Hydrobionts
Calculations
Modeling
Stocks
Fishery
Migrations
Аннотация: The regression methods are shown not to allow assessing an open local stock as in the case of the Leslie and De Lury classic models. To solve this problem, a method based on Kalman filter is suggested. Besides, there is given a description of some methodical weak points of De Lury model, which make it less preferable regarding to Leslie's model. This work presents the Leslie's Generalized Model with Kalman filter (LGM KF), which is aimed to reconstruct a stock dynamics during fishery using the temporary series of catches on local areas in the presence of migratory flows and neglected catch.
6.
Подробнее
Article
M68
Mikheyev, A.A.
Solution of Balance Equations for a Model of Fishery Depletion of the Non-Isolated Population / Mikheyev, A.A. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 109-125. - 2014
~РУБ Article
Рубрики: Modeling
Fishery
Population
Equation
Stocks
Biology
Аннотация: The known class of models of the fishery depletion is enlarged for a case of the non-isolated population. Dynamics of the local open stock under the fishery influence is described using the balance differential equations. A depletion model for the homogeneous-by-space stock is given as a Cauchy task. Its solution was obtained using the method of the constant variation. The analogous model for the heterogeneous-by-space stock is formulated as a Neumann task with non-stationary boundary conditions. A solution of this task was obtained as the source functions.
M68
Mikheyev, A.A.
Solution of Balance Equations for a Model of Fishery Depletion of the Non-Isolated Population / Mikheyev, A.A. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 109-125. - 2014
Рубрики: Modeling
Fishery
Population
Equation
Stocks
Biology
Аннотация: The known class of models of the fishery depletion is enlarged for a case of the non-isolated population. Dynamics of the local open stock under the fishery influence is described using the balance differential equations. A depletion model for the homogeneous-by-space stock is given as a Cauchy task. Its solution was obtained using the method of the constant variation. The analogous model for the heterogeneous-by-space stock is formulated as a Neumann task with non-stationary boundary conditions. A solution of this task was obtained as the source functions.
7.
Подробнее
Article
E27
Efimov, Yu.N.
Method of TAC Assessment on the Basis of Bioeconomic Modeling / Efimov, Yu.N., Borodin, R.G., Vasilyev, D.A. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 165-176. - 2014
~РУБ Article
Рубрики: Bioeconomics
Modeling
TAC
Efficiency
Fishery
Capelin
Аннотация: General approaches of implementation of bioeconomic modeling for TAC assessment are given. An example of analysis of capelin fishery economic efficiency by means of bioeconomic modeling is presented.
Доп.точки доступа:
Borodin, R.G.
Vasilyev, D.A.
E27
Efimov, Yu.N.
Method of TAC Assessment on the Basis of Bioeconomic Modeling / Efimov, Yu.N., Borodin, R.G., Vasilyev, D.A. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 165-176. - 2014
Рубрики: Bioeconomics
Modeling
TAC
Efficiency
Fishery
Capelin
Аннотация: General approaches of implementation of bioeconomic modeling for TAC assessment are given. An example of analysis of capelin fishery economic efficiency by means of bioeconomic modeling is presented.
Доп.точки доступа:
Borodin, R.G.
Vasilyev, D.A.
8.
Подробнее
Article
K79
Kovalev, Yu.A.
Evaluation of Northeast Arctic Cod Stock Harvest Rates Corresponding to Different Management Objectives / Kovalev, Yu.A., Kleptsova, N.S. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 184-191. - 2014
~РУБ Article
Рубрики: Cod
Stocks
Management
Modeling
Calculations
Biomass
Аннотация: A model of population and fisheries dynamics for the Northeast Arctic cod (Gadus morhua morhua) in the Barents Sea was developed. The model based assessments include: maximum sustainable yield (655,000 t) and corresponding fisheries mortality level (F) (0.48); maximum mean annual profit of cod fisheries (13.7 bln RUR) with F = 0.23; fisheries mortality level correspoding to maximum employment in fisheries F = 0.85. The existing cod exploitation level based on 0.4 target mortality level promotes for achieving the objectives to maximize catch and profit.
Доп.точки доступа:
Kleptsova, N.S.
K79
Kovalev, Yu.A.
Evaluation of Northeast Arctic Cod Stock Harvest Rates Corresponding to Different Management Objectives / Kovalev, Yu.A., Kleptsova, N.S. // Modern aspects of quantitative analysis of the fishing raw material base: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 151. P. 184-191. - 2014
Рубрики: Cod
Stocks
Management
Modeling
Calculations
Biomass
Аннотация: A model of population and fisheries dynamics for the Northeast Arctic cod (Gadus morhua morhua) in the Barents Sea was developed. The model based assessments include: maximum sustainable yield (655,000 t) and corresponding fisheries mortality level (F) (0.48); maximum mean annual profit of cod fisheries (13.7 bln RUR) with F = 0.23; fisheries mortality level correspoding to maximum employment in fisheries F = 0.85. The existing cod exploitation level based on 0.4 target mortality level promotes for achieving the objectives to maximize catch and profit.
Доп.точки доступа:
Kleptsova, N.S.
9.
Подробнее
Article
L62
Levashov, D.E.
The Instrumental Methods for Estimating Fish Stocks Food Base Using Optical Measurement Principles / Levashov, D.E. // Modern methods for assessing the biological productivity of waters in industrial areas of the World ocean: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 152. - P. 57-72. - 2014
~РУБ Article
Рубрики: Bioproductivity
Hydrology
Optics
Methodology
Hydrochemistry
Modeling
Аннотация: The instrumental methods that allow to determine authentically the environmental characteristics in real time "in situ" are considered. Their classification is developed basing on physics measurements and on interpretation of hydrobiological data as well. The main attention is given to meters using rapid optical measurement principles to conduct both rapid estimation of fish food base and the character of its formation. The main criterion for choosing meters is their methodological compatibility with CTD-complexes. Modern serial models for optical measuring instruments and recommendations for their use are presented from the standpoint of significance for fisheries.
L62
Levashov, D.E.
The Instrumental Methods for Estimating Fish Stocks Food Base Using Optical Measurement Principles / Levashov, D.E. // Modern methods for assessing the biological productivity of waters in industrial areas of the World ocean: VNIRO proceedings. - M.: VNIRO Publishing, 2014. - V. 152. - P. 57-72. - 2014
Рубрики: Bioproductivity
Hydrology
Optics
Methodology
Hydrochemistry
Modeling
Аннотация: The instrumental methods that allow to determine authentically the environmental characteristics in real time "in situ" are considered. Their classification is developed basing on physics measurements and on interpretation of hydrobiological data as well. The main attention is given to meters using rapid optical measurement principles to conduct both rapid estimation of fish food base and the character of its formation. The main criterion for choosing meters is their methodological compatibility with CTD-complexes. Modern serial models for optical measuring instruments and recommendations for their use are presented from the standpoint of significance for fisheries.
Страница 1, Результатов: 9