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The influence of the climatic and oceanological conditions on the stock dynamics of some commercial species of pelagic and bottom fish communities of the eastern part of the Sea of Okhotsk
- Source :
- The researches of the aquatic biological resources of Kamchatka and the North-West Part of the Pacific Ocean. 1:5-34
- Publication Year :
- 2020
- Publisher :
- Kamchatka Research Institute of Fisheries and Oceanography, 2020.
-
Abstract
- Stepwise multidimensional regressive analysis was carried out based on the long-term data (1971–2018), including biological statistics and series of observations on 10 climate indices, allowing to identify the most meaningful climatic factors affecting the numbers of some fish species at different stages of the ontogenesis in the Eastern part of the Sea of Okhotsk. All the results obtained indicate of existing true correlations with the number of the two-years-old individuals and the number of the fish reached the age of the mass (>50%) maturation. Threedimension regression models, describing the dynamics of the initial number of some fish satisfactorily. Were made, based on the obtained equations of multiple regression of the relationship between the number of the fish and the most effective climatic indices selected. The major indices affecting the abundance of different fish species are: SST, NPGO, SanSpot – Pacific herring; NPA – saffron cod; PDO – Pacific cod; NPA, SanSpot – great sculpin; SanSpot, PNA, AO – yellowfin sole; PDO, SSTa – Pacific halibut; Ice SanSpot, NPGO – Greenland turbot. Pelagic, demersal and bottom species are under the complex influence of the oceanographic, meteorological and planetary-space indices.
- Subjects :
- 010504 meteorology & atmospheric sciences
biology
Pacific cod
Pacific herring
Pelagic zone
biology.organism_classification
Halibut
01 natural sciences
Demersal zone
Turbot
Oceanography
Herring
0103 physical sciences
Sculpin
010303 astronomy & astrophysics
0105 earth and related environmental sciences
Subjects
Details
- ISSN :
- 20728212
- Volume :
- 1
- Database :
- OpenAIRE
- Journal :
- The researches of the aquatic biological resources of Kamchatka and the North-West Part of the Pacific Ocean
- Accession number :
- edsair.doi...........a867285c503f1bce5e73f4e84d76e4b2
- Full Text :
- https://doi.org/10.15853/2072-8212.2020.56.5-34