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Application of Model of the Open Exploited Population to Assessment of the Local Stocks

Mikheyev, A.A. (VNIRO Publishing, 2014)

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 ...
Estimation of Unaccounted Catch Values

Babayan, V.; Vasilyev, D.; Bulgakova, T. (VNIRO Publishing, 2014)

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 ...
Evaluation of Northeast Arctic Cod Stock Harvest Rates Corresponding to Different Management Objectives

Kovalev, Yu.A.; Kleptsova, N.S. (VNIRO Publishing, 2014)

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 ...
Method of TAC Assessment on the Basis of Bioeconomic Modeling

Borodin, R.G.; Vasilyev, D.A.; Efimov, Yu.N. (VNIRO Publishing, 2014)

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.
Robust Likelihood Functions for Estimation of Parameters of Stock-Fishery Models

Vasilyev, D.; Babayan, V. (VNIRO Publishing, 2014)

Some approaches to increase the robustness of likelihood functions in their application for estimation of parameters of stock assessment models are considered.
Solution of Balance Equations for a Model of Fishery Depletion of the Non-Isolated Population

Mikheyev, A.A. (VNIRO Publishing, 2014)

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. ...
The Estimation of the Size and Management of the Fisheries of the Harp Seal Pagophilus groenlandicus of the White Sea Population

Korzhev, V.A. (VNIRO Publishing, 2014)

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 Instrumental Methods for Estimating Fish Stocks Food Base Using Optical Measurement Principles

Levashov, D.E. (VNIRO Publishing, 2014)

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 ...
The Use of Tagging Data to Increase Reliability of Stock Assessment Results

Vasilyev, D.; Babayan, V.; Bulgakova, T. (VNIRO Publishing, 2014)

Some aspects of incorporation of tagging data into stock assessment procedure by means of cohort models are discussed.

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