CAJ | 학술논문

为研究不同温度条件下文昌鱼对铜离子（ Cu2＋）和锌离子（ Zn2＋）的耐受性。通过净水急性毒性试验，获得了12℃、18℃、24℃、30℃和36℃条件下水中Cu2＋和Zn2＋对文昌鱼的24 h半致死浓度（24 h LC50）。 Cu2＋的24 h LC50分别为0．88，0．95，0．9，0．8，0．68 mg/L；Zn2＋为4．26，4．26，4，3．8，3．67 mg/L。通过比较不同温度条件下的24 h LC50，找到文昌鱼比较适合生活的水温为18℃；相同温度条件下，Cu2＋对文昌鱼的24 h LC50远低于Zn2＋对文昌鱼的24 h LC50，说明Cu2＋对文昌鱼的毒性远大于Zn2＋对文昌鱼的毒性。在试验水温范围内，超过18℃，水温越高，文昌鱼出砂率越高，存活率降低；Cu2＋和Zn2＋浓度越高，文昌鱼出砂率越高，存活率越低。
위연구불동온도조건하문창어대동리자（ Cu2＋）화자리자（ Zn2＋）적내수성。통과정수급성독성시험，획득료12℃、18℃、24℃、30℃화36℃조건하수중Cu2＋화Zn2＋대문창어적24 h반치사농도（24 h LC50）。 Cu2＋적24 h LC50분별위0．88，0．95，0．9，0．8，0．68 mg/L；Zn2＋위4．26，4．26，4，3．8，3．67 mg/L。통과비교불동온도조건하적24 h LC50，조도문창어비교괄합생활적수온위18℃；상동온도조건하，Cu2＋대문창어적24 h LC50원저우Zn2＋대문창어적24 h LC50，설명Cu2＋대문창어적독성원대우Zn2＋대문창어적독성。재시험수온범위내，초과18℃，수온월고，문창어출사솔월고，존활솔강저；Cu2＋화Zn2＋농도월고，문창어출사솔월고，존활솔월저。
To study the tolerance of the Branchiostoma belcheri in the Cu2+and Zn2+water under different temperature.water.Through the acute toxicity testing ,we found the 24 h median lethal concentration (24 h LC50 ) of the Branchiostoma belcheri in the Cu2+water under the temperature of 12℃,18℃,24℃,30℃and 36 ℃.It was 0.88 mg/L,0.95 mg/L,0.9 mg/L,0.8 mg/L and 0.68 mg/L.And the 24 h LC50 of the Branchiostoma belcheri in the Zn2+water under the temperature of 12 ℃,18 ℃,24 ℃,30 ℃ and 36 ℃was 4.26 mg/L,4.26 mg/L,4 mg/L,3.8 mg/L and 3.67 mg/L, respectively.To compare of the 24 h LC50 under different temperature , to find the most suitable temperature was 18 ℃for the Branchiostoma belcheri.The 24 h LC50 of Branchiostoma belcheri in the Cu2+water far less than the 24 h LC50 of Branchiostoma belcheri in the Zn2+water.The 24 h LC50 smaller values greater toxicity .We could infer the oxicity of the Cu 2+more than the Zn2+.When the temperature higher than 18 ℃.The Branchiostoma belcheri got out from the sand more and more and the survival rate lower when the temperature higher and higher .The concentration of Cu 2+and Zn2+is higher the survival rate of the Branchiostoma belcheri is lower and the Branchiostoma belcheri got out from the sand more and more .