Effects of temperature and temperature acclimation on survival of zebra mussels (Dreissena polymorpha) and Asian clams (Corbicula fluminea) under extreme hypoxia.
-
Published source details
Matthews M.A. & McMahon R.F. (1999) Effects of temperature and temperature acclimation on survival of zebra mussels (Dreissena polymorpha) and Asian clams (Corbicula fluminea) under extreme hypoxia.. Journal of Molluscan Studies, 65, 317-325.
Published source details Matthews M.A. & McMahon R.F. (1999) Effects of temperature and temperature acclimation on survival of zebra mussels (Dreissena polymorpha) and Asian clams (Corbicula fluminea) under extreme hypoxia.. Journal of Molluscan Studies, 65, 317-325.
Actions
This study is summarised as evidence for the following.
| Action | Category | |
|---|---|---|
|
Asian clams: Reduce oxygen in the water Action Link |
 |
-
Asian clams: Reduce oxygen in the water
A controlled laboratory study in 1999 on specimens from a dam and artificial stream in Texas, USA (Matthews & McMahon 1999) found that Asian clams Corbicula fluminea survived low oxygen levels for extended time periods. They survived an average of 12, 35 and >84 days at 25°C, 15°C and 5°C, respectively. Survival rates were comparable with the control (normal oxygen levels). However, larger clams were less tolerant to low oxygen than smaller ones. Groups of clams were acclimated to 5°, 15° or 25°C for 14 days. A group of 30 adult clams were held in water that was either aerated (control) or had reduced oxygen at 5°, 15° and 25°C. In low oxygen treatments, partial pressure of oxygen was reduced to less than 5% of full air saturation by continually bubbling the water with nitrogen. The water was changed every 2-3 days. Testing ceased when all clams had died or after a maximum of 12 weeks. Oxygen concentrations and survival of clams were recorded daily.
)_2023.JPG)
