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Fluctuation in abundance of larval anchovy and environmental conditions in coastal waters off south‐western Taiwan as associated with the El Niño–Southern Oscillation
Author(s) -
TSAI CHUFA,
CHEN PEIYU,
CHEN CHANGPO,
LEE MINGANNE,
SHIAH GUANGYAW,
LEE KUOTIEN
Publication year - 1998
Publication title -
fisheries oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 80
eISSN - 1365-2419
pISSN - 1054-6006
DOI - 10.1046/j.1365-2419.1998.00043.x
Subject(s) - anchovy , upwelling , teleconnection , oceanography , el niño southern oscillation , sea surface temperature , current (fluid) , environmental science , abundance (ecology) , pacific decadal oscillation , climatology , multivariate enso index , lag , fishery , geology , southern oscillation , biology , computer network , fish <actinopterygii> , computer science
Monthly abundance ( CPUE ) of larval anchovy in the coastal waters off south‐western Taiwan from 1980 to 1992 (156 months) fluctuated at intervals corresponding to the 4.3‐ and 2.2‐year cycles of the southern oscillation index ( SOI ). Also, CPUE was significantly correlated with sea surface temperature with a time lag of 3 months and nearly significantly to river flow with a time lag of 4 months, which in turn correlated with SOI at lags of 13–14 months (cross‐correlation and transfer function analyses). The results suggested the presence of linkage between recruitment of the larvae and ENSO episodes, perhaps through oceanographic and meteorological conditions that affect coastal upwelling and river discharge. The Kuroshio Current, which is the western extension of the North Equatorial Current, may be one of the important mechanisms of ENSO's teleconnections affecting local climate and fisheries in the western Pacific region.