Effects of co-culture and salinity on the growth and agar yield ofGracilaria tenuistipitata varliui Zhanget Xia

He Li-hong; Wu Madeline; Qian Pei-yuan; Zhu Ming-yuan

doi:10.1007/BF02847928

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Effects of co-culture and salinity on the growth and agar yield ofGracilaria tenuistipitata varliui Zhanget Xia

Updated：2023-05-16

- Effects of co-culture and salinity on the growth and agar yield ofGracilaria tenuistipitata varliui Zhanget Xia
- Journal of Oceanology and Limnology Vol. 20, Issue 4, Pages: 365-370(2002)
- Affiliations：
  
  1. Suzhou University
  2. Hongkong University of Science and Technology
  3. First Institute of Oceanology State Oceanic Administration
- Author bio：
- Funds：
- DOI：10.1007/BF02847928
  CLC：
- Published：2002
- Accepted：
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Li-hong, H., Madeline, W., Pei-yuan, Q. et al. Effects of co-culture and salinity on the growth and agar yield ofGracilaria tenuistipitata varliui Zhanget Xia., Chin. J. Ocean. Limnol. 20, 365–370 (2002). https://doi.org/10.1007/BF02847928
DOI：

Li-hong, H., Madeline, W., Pei-yuan, Q. et al. Effects of co-culture and salinity on the growth and agar yield ofGracilaria tenuistipitata varliui Zhanget Xia., Chin. J. Ocean. Limnol. 20, 365–370 (2002). https://doi.org/10.1007/BF02847928 DOI：

摘要

Abstract

Gracilaria tenuistipitata varLiui were mono-cultivated and co-cultivated withPinctada martensii under high (33) and low (21) salinity conditions in laboratory. The daily growth rate of the alga was determined. Tissue carbon and nitrogen contents

the yield and fractional composition of agar were analyzed. Results showed that: 1.Gracilaria grew better under low salinity conditions

the daily growth rate was twice that under high salinity conditions. Co-cultivated algae grew faster than mono-cultivated algae under low salinity conditions

the daily growth rate was about 37.6% higher. 2. Compared with mono-cultivated algae

tissue nitrogen contents of co-cultivated algae were higher

while the C:N ratios were much lower. 3. The agar yields of co-cultivated algae were much lower than those of mono-cultivated algae. Agar yield was found to be negatively correlated to the tissue nitrogen contents

and positively correlated to the C:N ratios. 4. The highest fractional yields obtained from co-cultivated algae were extracted with 40% ethanol

while from mono-cultivated algae

the highest fractional yields obtained were extracted with distilled water at room temperature.

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references

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