Work

The spatiotemporal standardization of the stock index and reduction of hauls in research surveys (on the example of red king crab in the Barents Sea)

Year: 2024

Type: article

Abstract: The paper presents the results of the spatiotemporal standardization of the stock biomass index of red king crab in the Russian EEZ of the Barents Sea carried out using the generalized additive mixed effect model (GAMM) which was implemented in the sdmTMB library of the Renvironment. The spatiotemporal approach used in species distribution modelling within GAMM enables taking into account numerous environmental factors and fishing gears, thereby increasing the quality of the assessment especially in areas with data shortage. Additionally, in modelling the stock density for areas with no observations the space-time autocorrelation in between hauls is also taken into consideration.

Source: Problems of fisheries

DOI: 10.36038/0234-2774-2024-25-3-181-196

Authors: S. V. Bakanev, A. V. Stesko

Institution: All-Russian Research Institute Fisheries and Oceanography

Language: English

Topic: Marine and fisheries research

Subfield: Global and Planetary Change

Field: Environmental Science

Domain: Physical Sciences

SDG: Life below water

Open Access status: diamond

Funders: National Oceanic and Atmospheric Administration, Fogarty International Center