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A sulfur hexafluoride‐based Lagrangian study on initiation and accumulation of the red tide Cochlodinium polykrikoides in southern coastal waters of Korea
Author(s) -
Park Geun-Ha,
Lee Kitack,
Koo Chul-Min,
Lee Hyun-Woo,
Lee Chang-Kyu,
Koo Jun-Seok,
Lee Tongsup,
Ahn Shin-Hong,
Kim Hak-Gyoon,
Park Byong-Kwon
Publication year - 2005
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.2005.50.2.0578
Subject(s) - bloom , algal bloom , red tide , seawater , oceanography , sulfur , population , water mass , environmental science , biology , chemistry , ecology , phytoplankton , nutrient , geology , organic chemistry , demography , sociology
We report continuous in situ measurements of a population of the harmful algal bloom species Cochlodinium polykrikoides in a fixed volume of inshore waters near the island of Naro‐do (34.47°N and 127.55°W), off the southern coast of Korea and where the earliest bloom of C. polykrikoides occurs regularly. This Lagrangian experiment was carried out by injecting the inert chemical tracer sulfur hexafluoride (SF 6 ) into a patch of seawater carrying C. polykrikoides and tracking the SF 6 ‐labeled water mass for 4 d. Our results suggest that in situ growth of C. polykrikoides within the SF 6 ‐labeled water accounts for only a fraction of the total cell increase. A probable mechanism we invoke here is that bloom initiation and much of the cell accumulation in inshore waters near Narodo are due to the input of C. polykrikoides cells via lateral mixing of inshore waters with the alongshore current containing high C. polykrikoides cell density.