CAJ | 학술논문

采用实验生态学方法,研究了不同温度和盐度对壳长为(3.41±0.25) cm的香螺Neptunea cumingii幼螺呼吸和排泄的影响。结果表明：温度和盐度对香螺幼螺耗氧率、排氨率、氧氮比( O ： N)均有极显著影响(P<0.01)；在一定盐度范围内,试验组香螺幼螺的耗氧率和排氨率均随盐度的升高呈现出先增加后降低的趋势,当盐度为19~34时,耗氧率随盐度的升高而增加,超过34时,随盐度的升高而不断降低；当盐度为19~29时,排氨率随盐度的升高而增加,超过29时,随盐度的升高而不断降低；耗氧率( RO )和排氨率(RN)与盐度(S)的相关方程分别为 RO=-0.0006S2+0.0382S-0.4622(R2=0.9115)和 RN=-0.0001S2+0.0049S-0.0451(R2=0.5529)；在温度试验中,试验组香螺幼螺耗氧率和排氨率随温度(T)的升高也呈现出先增加后降低的趋势,耗氧率与排氨率最高时对应的温度分别为20、25℃,相关方程分别为RO=-0.0014T2+0.0514T-0.2074(R2=0.8017)和RN =-0.0013T2+0.0078T+0.0109(R2=0.8260)。研究表明,香螺幼螺生存的最适宜温度为20℃,适宜盐度范围为29~34。
채용실험생태학방법,연구료불동온도화염도대각장위(3.41±0.25) cm적향라Neptunea cumingii유라호흡화배설적영향。결과표명：온도화염도대향라유라모양솔、배안솔、양담비( O ： N)균유겁현저영향(P<0.01)；재일정염도범위내,시험조향라유라적모양솔화배안솔균수염도적승고정현출선증가후강저적추세,당염도위19~34시,모양솔수염도적승고이증가,초과34시,수염도적승고이불단강저；당염도위19~29시,배안솔수염도적승고이증가,초과29시,수염도적승고이불단강저；모양솔( RO )화배안솔(RN)여염도(S)적상관방정분별위 RO=-0.0006S2+0.0382S-0.4622(R2=0.9115)화 RN=-0.0001S2+0.0049S-0.0451(R2=0.5529)；재온도시험중,시험조향라유라모양솔화배안솔수온도(T)적승고야정현출선증가후강저적추세,모양솔여배안솔최고시대응적온도분별위20、25℃,상관방정분별위RO=-0.0014T2+0.0514T-0.2074(R2=0.8017)화RN =-0.0013T2+0.0078T+0.0109(R2=0.8260)。연구표명,향라유라생존적최괄의온도위20℃,괄의염도범위위29~34。
The effects of temperature and salinity on respiration and excretion were studied in juvenile whelk Neptu-nea cumingii with shell length of 3. 41 cm±0. 25 cm by an experimental ecological method. The results showed that the salinity and the temperature led to significant influence on the oxygen consumption rate,ammonia excretion rate and O : N in the juveniles(P<0. 01). Within a given salinity, the oxygen consumption rate and ammonia excretion rate were found to be increased with elevated salinity first, and then decreased in the treatment groups. The oxygen consumption rate was increased with elevated salinity at a salinity range from 19 to 34 , and decreased at a salinity of over 34 . The ammonia excretion rate was increased with increase in salinity at a salinity range from 19 to 29 , but decreased at a salinity of more than 29. The relationship between oxygen consumption rate ( RO ) and the salinity (S) was expressed as RO=-0. 0006S2+0. 0382S-0. 4622(R2=0. 9115);relationship between the ammonia excre-tion rate (RN) and the salinity (S) was described as RN=-0. 0001S2+0. 0049S-0. 0451(R2= 0. 5529). In the temperature experiment, both oxygen consumption rate and ammonia excretion rate in the juveniles in the treatment groups were found to be increased with rising temperature first, and then decreased, the maximal oxygen consump-tion rate at 20 ℃ and the maximal ammonia excretion rate at 25 ℃. The relationship between consumption rate (RO)and temperature (T) was expressed as the formula:RO=-0. 0014T2+0. 0514T-0. 2074(R2=0. 8017);and the relationship between ammonia excretion rate ( RN ) and temperature ( T) was described as the formula RN=-0. 0013T2+0. 0078T+0. 0109(R2=0. 8260), indicating that the optimum temperature for the survival of the ju-veniles is 20 ℃ and suitable salinity from 29 to 34 .