On application of Kalman filters in cohort models

Author:

Ilin O. I.1ORCID

Affiliation:

1. Kamchatka branch of VNIRO (KamchatNIRO)

Abstract

On example of walleye pollock at East Kamchatka, one of possible approaches is considered to assess the state of stocks for marine commercial species with usage of the data on age structure in catches. Algorithms for suboptimal filtering and interpolation (extended Kalman smoother and unscented Kalman smoother) are presented for a cohort model of an exploited stock, in presence of uncertainty about true value of the vector of the system parameters.

Publisher

FSBSI TINRO Center

Subject

Microbiology (medical),Immunology,Immunology and Allergy

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3. Varkentin, A.I., Sergeeva, N.P., Ilyin O.I., and Ovsyannikov E.E., Walleye pollock (Gadus chalcogrammus, Pallas, 1814) fishery, size and age composition, state of stocks and catch prospects in the waters adjacent to Kamchatka peninsula and Northern Kuril Islands, Issled. Vodn. Biol. Resur. Kamchatki Sev.-Zapadn. Chasti Tikhogo Okeana, 2021, vol. 60, pp. 5–42. doi 10.15853/2072-8212.2021.60.5-42

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5. Ilyin, O.I., Sergeeva, N.P., and Varkentin, A.I., Estimation of reserves and forecasting of TAC of East Kamchatka pollock (Theragra chalcogramma) based on a precautionary approach, Tr. Vses. Nauchno-Issled. Inst. Rybn. Khoz. Okeanogr., 2014, vol. 151, pp. 62–74.

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