S.M.M. Rahman1, H.K.
H.J. Park2, J.M.Park3
C.I. Lee2* ??
for Dok-do andUlleung-do, Kyungpook National University, Daegu, 41566,
Republic of Korea
Marine Bioscience, College of Life Science, Gangneung-Wonju National
University, Gangneung, 25457, Republic of Korea
Center, East Sea Research Institute, Korea Institute of Ocean Science &
Technology, Uljin, 36315, Republic of Korea
Author Email :
Aim: Climate regime
shift in 1976/77, 1988/89 and 1998 were well detected in different East Asian
marginal sea ecosystems. However, information about synchronous pattern of
these regime shifts among the ecosystems is limited.
Methodology: In this study,
synchronicity of regime shifts among major climate patterns was examined in
north Pacific, sea water temperatures, and major fish species in north
East/Japan Sea, south East/Japan Sea, East China Sea and Yellow Sea .
Results: Results suggest
that 1976/77 climate regime shift was marked for a long duration period
(1970-1979) among climate indices and sea water temperature. Early positive
shifts were detected in sea water temperature of East China Sea (1970) and
Yellow Sea (1972). Early positive shifts were detected in walleye pollock,
Japanese anchovy and hairtail. In 1988/89 CRS, most climate patterns were
shifted within very short time (1987-1989). Positive shifts of sea water
temperature in East Asian marginal sea were detected within very short time
(1985-1989). Japanese sardine (1983) and walleye pollock (1985) collapsed
early. All climate patterns were shifted earlier in 1998 climate regime shift
period. Abrupt negative shift was detected in sea water temperature of south
East / Japan Sea (1999) and East China Sea (2002).
Interpretation: This study will
help to project the future scenario of these East Asian marginal sea
ecosystems under upcoming climate regime shift in North Pacific.
Key words: Climate regime shift, East Asian marginal sea, Fish
species, Seawater temperature, Synchronicity