Earth nutation influence on system dynamics of Northeast Arctic cod
This paper reports a correlation between the time series of Northeast Arctic cod population estimates and the Earth's nutation of 18.6 years. In the Barents Sea harmonic temperature cycles of 3*18.6=55.8 years, 18.6 years, and 18.6/3=6.2 years are correlated to the growth rate of cod and will c...
| Published in: | ICES Journal of Marine Science |
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| Main Author: | |
| Format: | Text |
| Language: | English |
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Oxford University Press
1999
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| Online Access: | http://icesjms.oxfordjournals.org/cgi/content/short/56/5/652 https://doi.org/10.1006/jmsc.1999.0491 |
| Summary: | This paper reports a correlation between the time series of Northeast Arctic cod population estimates and the Earth's nutation of 18.6 years. In the Barents Sea harmonic temperature cycles of 3*18.6=55.8 years, 18.6 years, and 18.6/3=6.2 years are correlated to the growth rate of cod and will cause long-term biomass fluctuations. Harmonic temperature cycles of 18.6/3=6.2 years cycle are correlated exponentially to time series of the recruitment cycles of cod. The influence of the Earth's nutation is explained by a General Systems theory where temperature cycles are a forced oscillator on the biological system in the Barents Sea. The system dynamics of the cod biomass are synchronized to the temperature cycle and amplified by a biological stochastic resonance to the supply of food. |
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