動物世界 Animal World Search for The Causes of Japanese Abalone Resource Decreasing Gwo, Jin-Chywan Department of Aquaculture, Taiwan National Ocean University, Keelung 1970 32-4 45 Mollusca GastropodaArchaeogastropoda Haliotidae Haliotis 1 42Haliotis discus discus H. gigantea H. madaka H. discus hannai H. diversicolor diversicolor H. diversicolor aquatilis 1 Haliotis discus discush. discus hannai H. giganteah. madaka 2 3 68 2014 123 333
2 19804 3 ; 1985 1990 H. discus hannai 19961/3 3 ; 1970 1980 40 41990 34 4 3 12-45 61% 29% 10%<1% 5 44% 16%14% 5 90% 6 3 19702000 19804 1985 1990 H. discus hannai 1996 1/3 6 90% 4 1990 34 5 3 2-4 2014 TAIWAN NATURAL SCIENCE Vol.333 69
動物世界 Animal World 7 8 9 MEH22 6 7 8 10 4-68 red coralline algae 1-210mm 9 A 198310 1-28 101996 Kadonohama Bay 0 6199820012 1990 1-2 8 1990 3-7 70 2014 123 333
B 200120062 11 19401980 100 ALPIAleutian Low Pressure Index 1130 12 2-7 regime shift 3Haliotis discus discus H. gigantea H. madaka 3 10 2 2 2 6 12 13 ; 13 9 3 2014 TAIWAN NATURAL SCIENCE Vol.333 71
動物世界 Animal World 1 2 3 4 + + ALPIAleutian Low Pressure Index; 1980 ALPI off Honshu14 32 131990 ALPI recruitment 1 vs 3 regime shift 15 1 72 2014 123 333
2 34 1970 1980 32-4 Allee effect 14 19801990 15 H. gigantea H. sieboldii 2012? 120 2008 234 200811 Katsuyuki Hamasaki and Shuichi Kitada (2008). The enhancement of abalone stocks: lessons from Japanese case studies. Fish and Fisheries. Volume 9, Issue 3, pages 243 260. 2014 TAIWAN NATURAL SCIENCE Vol.333 73