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This investigation focuses on a global forcing mechanism for decadal regimeshifts and their subsequent impacts. The proposed global forcing mechanismis that the global atmospheric planetary waves can lead to changes in theglobal surface air–sea conditions and subsequently fishery changes. In thisstudy, the five decadal regime shifts (1956–1957, 1964–1965, 1977–1978, 1988–1989,and 1998–1999) in the most recent 59-year period (1950–2008) have been identified basedon Student <i>t</i> tests and their association with global marine ecosystem changehas been discussed. Changes in the three major oceanic (Pacific, Atlantic,and Indian) ecosystems will be explored with the goal of demonstrating thelinkage between stratospheric planetary waves and the ocean surface forcingthat leads to fisheries impacts. Theglobal forcing mechanism is described with a top-down approach to help themultidisciplinary audience follow the analysis. Following previous work,this analysis addresses how changes in the atmospheric planetary waves mayinfluence the vertical wind structure, surface wind stress, and theirconnection with the global ocean ecosystems based on a coupling of theatmospheric regime shifts with the decadal regime shifts determined frommarine life changes. The multiple decadal regime shifts related to changesin marine life are discussed using the United Nations Food and AgricultureOrganization's (FAO) global fish capture data (catch/stock).Analyses are performed to demonstrate that examining the interactions between theatmosphere, ocean, and fisheries is a plausible approach to explainingdecadal climate change in the global marine ecosystems and its impacts. Theresults show a consistent mechanism, ocean wind stress, responsible formarine shifts in the three major ocean basins. Changes in the planetary wavepattern affect the ocean wind stress patterns. A change in the ocean surfacewind pattern from longwave (relatively smooth and less complex) to shorter-wave (more convoluted and more complex) ocean surface wind stress createschanges in global marine fisheries

Decadal regime shift linkage between global marine fish landings and atmospheric planetary wave forcing