Damages by “Cochlo” red tides

Some red tides of “Cochlo” gave damage to marine organisms. As wild organisms such as fish can escape to safe area, they are seldom affected. But fish in an aquaculture cage can not swim out form there and are easily affected, if a red tide of “Cochlo” approaches to the cage.

Spreading red tide of “Cochlo” near longline farm in Korea
Fish killed by “Cochlo” red tide
(Picture is Provided by Tottori Prefectual Fisheries Research Center, Japan)
Coelenterate killed by “Cochlo” red tide
(Picture is Provided by Tottori Prefectual Fisheries Research Center, Japan)
Mollusk killed by “Cochlo” red tides
(Picture is Provided by Tottori Prefectual Fisheries Research Center, Japan)

 

Damage by “Cochlo” red tides in Japan and Korea

Japan

Month/Year Location Suffered species Economic loss
(1,000 yen)
Aug. 1998 Hikoshima, Shimonoseki City,
Yamaguchi Pref.
Fishes No report
Aug.1998 Tsushima, Nagasaki Pref. Amberjacks 1,122
Aug. 1999 Imari Bay, Saga Pref. Sea bream
Yellowtail
Puffer fish
Others
340,000
220,000
180,000
2,000
Aug. 2002 Goto Islands, Nagasaki Pref. Amberjacks
Horse mackerel
29,044
1,240
Sep. 2002 Abu Town, Susa Town and
Tamagawa Town, Yamaguchi Pref.
and Masuda City and Misumi Town,
Shimane Pref.
Yellowtail 15,000
Aug. 2003 Western part of Kyushu (Yatsushiro) Flatfish No report 
 Aug. 2003 Western part of Kyushu (Yatsushiro)  Yellowtail
Greater amberjack
Others
470,062
117,285
461
 Aug. 2003 Goto Islands, Nagasaki Pref. Amberjacks
White trevally
29,044
1,240
 Sep. 2003 Northern part of Kyushu Yellowtail 15,000
 Sep. 2004 Western part of Kyushu (Yatsushiro) Yellowtail
Puffer fish
Greater amberjack
White trevally
Amberjack
227,880
56,000
2,549
893
60
Sep. 2004 Tsushima, Nagasaki Pref. Yellowtail
White trevally
 864
347
Aug. 2005 Northern part of Kyushu (Imari) Puffer fish 7,241 
Jul.-Aug. 2006 Western part of Kyushu (Yatsushiro) Yellowtail
Amberjack
Greater amberjack
White trevally
Puffer fish
Sea bream
61,118
210
21
1,709
1,000
50
Aug. 2006 Tsushima, Nagasaki Pref. Tuna
Yellowtail
3,514
30
total 1,784,984

 

Korea

Year Location Suffered species Economic loss
(million US$)
1992 Tongyoung & Koje Coastal Waters Flatfish
Rock fish
Yellowtail
26.9
1993 Tongyoung & Koje Coastal Waters Flatfish
Rock fish
Yellowtail
11.7
1995 Whole South & East Sea Flatfish
Rock fish
Yellowtail
Oyster
Abalone
95.4
1996 Middle and East Parts of South Sea Flatfish
Rock fish
Yellowtail
2.6
1997 Middle and East Parts of South Sea Flatfish
Rock fish
Yellowtail
1.9
1999 South Sea & South Parts of East Sea Flatfish
Rock fish
0.3
2001 Whole South & East Sea Flatfish
Rock fish
Yellowtail
7
2002 Whole South & East Sea Flatfish
Rock fish
Yellowtail
7
2003 Whole South & East Sea Flatfish
Rock fish
Yellowtail
17.9
2004 South Sea Flatfish
Rock fish
Yellowtail
0.1
total 170.8

 

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