A fingernail clam ( Sphaerium sp . ) shows higher reproductive success in hypoxic waters

  title={A fingernail clam ( Sphaerium sp . ) shows higher reproductive success in hypoxic waters},
  author={Joanna Joyner-Matos and Henry Richardson and Tammy Sammeli and Lauren J. Chapman},
Low dissolved O2, or hypoxia, is becoming increasingly prevalent in aquatic habitats and is considered to be stressful for aerobic organisms. However, hypoxia also can be beneficial by decreasing cellular stress, particularly that related to free radicals. Therefore, an animal’s ideal habitat may have the minimum O2 necessary to sustain aerobic metabolism, with excess O2 increasing the need to scavenge free radicals and repair free radical damage. Here we show that a natural population of small… CONTINUE READING
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