Modelling of stock dynamics for spiny king crab <i>Paralithodes brevipes</i> at southern Kuril Islands using a finite-difference model with delay
The information on fishery object limited by CPUE data and fragmentary data on age and size is sufficient for production models. However, this type of models is improper for long-living species, as crabs, because of problem with assumption on equilibrium stock. Describing dynamics of a single year-c...
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| Format: | Article |
| Language: | Russian |
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Transactions of the Pacific Research Institute of Fisheries and Oceanography
2016-06-01
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| Series: | Известия ТИНРО |
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| Online Access: | https://izvestiya.tinro-center.ru/jour/article/view/102 |
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| author | Igor S. Chernienko |
| author_facet | Igor S. Chernienko |
| author_sort | Igor S. Chernienko |
| collection | DOAJ |
| description | The information on fishery object limited by CPUE data and fragmentary data on age and size is sufficient for production models. However, this type of models is improper for long-living species, as crabs, because of problem with assumption on equilibrium stock. Describing dynamics of a single year-class, these models average the parameters for all generations that impedes to use them for assessment of crabs stocks. Finite-difference models with delay are more promising in this case. Deriso-Snute finite-difference model with delay was used for simulating of the spiny king crab biomass dynamics at southern Kuril Islands and forecasting of TAC for this species. Parameters of the model were estimated using the algorithm of sampling by scheme of Markov chain. The model is relatively simple and undemanding to data - time-series of commercial catch per effort is sufficient for its simplest version. Results of modeling are comparable with the results of cohort models. |
| format | Article |
| id | doaj-art-3b7478e38a484ea79f5632e294a1a6d2 |
| institution | Matheson Library |
| issn | 1606-9919 2658-5510 |
| language | Russian |
| publishDate | 2016-06-01 |
| publisher | Transactions of the Pacific Research Institute of Fisheries and Oceanography |
| record_format | Article |
| series | Известия ТИНРО |
| spelling | doaj-art-3b7478e38a484ea79f5632e294a1a6d22025-08-03T19:27:09ZrusTransactions of the Pacific Research Institute of Fisheries and OceanographyИзвестия ТИНРО1606-99192658-55102016-06-01185210211110.26428/1606-9919-2016-185-102-111102Modelling of stock dynamics for spiny king crab <i>Paralithodes brevipes</i> at southern Kuril Islands using a finite-difference model with delayIgor S. Chernienko0Сахалинский научно-исследовательский институт рыбного хозяйства и океанографииThe information on fishery object limited by CPUE data and fragmentary data on age and size is sufficient for production models. However, this type of models is improper for long-living species, as crabs, because of problem with assumption on equilibrium stock. Describing dynamics of a single year-class, these models average the parameters for all generations that impedes to use them for assessment of crabs stocks. Finite-difference models with delay are more promising in this case. Deriso-Snute finite-difference model with delay was used for simulating of the spiny king crab biomass dynamics at southern Kuril Islands and forecasting of TAC for this species. Parameters of the model were estimated using the algorithm of sampling by scheme of Markov chain. The model is relatively simple and undemanding to data - time-series of commercial catch per effort is sufficient for its simplest version. Results of modeling are comparable with the results of cohort models.https://izvestiya.tinro-center.ru/jour/article/view/102kuril islandsstock assessmentmodelingdelay-difference modelspiny king crab |
| spellingShingle | Igor S. Chernienko Modelling of stock dynamics for spiny king crab <i>Paralithodes brevipes</i> at southern Kuril Islands using a finite-difference model with delay Известия ТИНРО kuril islands stock assessment modeling delay-difference model spiny king crab |
| title | Modelling of stock dynamics for spiny king crab <i>Paralithodes brevipes</i> at southern Kuril Islands using a finite-difference model with delay |
| title_full | Modelling of stock dynamics for spiny king crab <i>Paralithodes brevipes</i> at southern Kuril Islands using a finite-difference model with delay |
| title_fullStr | Modelling of stock dynamics for spiny king crab <i>Paralithodes brevipes</i> at southern Kuril Islands using a finite-difference model with delay |
| title_full_unstemmed | Modelling of stock dynamics for spiny king crab <i>Paralithodes brevipes</i> at southern Kuril Islands using a finite-difference model with delay |
| title_short | Modelling of stock dynamics for spiny king crab <i>Paralithodes brevipes</i> at southern Kuril Islands using a finite-difference model with delay |
| title_sort | modelling of stock dynamics for spiny king crab i paralithodes brevipes i at southern kuril islands using a finite difference model with delay |
| topic | kuril islands stock assessment modeling delay-difference model spiny king crab |
| url | https://izvestiya.tinro-center.ru/jour/article/view/102 |
| work_keys_str_mv | AT igorschernienko modellingofstockdynamicsforspinykingcrabiparalithodesbrevipesiatsouthernkurilislandsusingafinitedifferencemodelwithdelay |