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Salinity effects on arm regeneration in Luidia clathrata (Echinodermata: Asteroidea)

Marine and Freshwater Behaviour and Physiology, ISSN: 1023-6244, Vol: 44, Issue: 6, Page: 359-374
2011
  • 8
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  • 25
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Metric Options:   Counts1 Year3 Year

Metrics Details

  • Citations
    8
    • Citation Indexes
      8
  • Captures
    25

Article Description

The effect of salinity (20, 25, and 30 psu) on regeneration of two arms of adult starfish Luidia clathrata (n = 8 per salinity treatment group collected from Pensacola Bay, Florida, USA 30° 20′ N, 87° 13′ W) was examined in a laboratory experiment (November 2009 to March 2010) to test the hypothesis that L. clathrata is adapted to euryhaline conditions found in bays with regards to arm regeneration. Regenerating arm condition (lengths and weights) relative to treatment was 20-psu treatment & 25-psu treatment & 30-psu treatment, and non-regenerating arm condition was 20-psu treatment & 25-psu treatment = 30-psu treatment. Luidia clathrata is not adapted to lower salinity conditions found in bays with regard to arm regeneration, despite the common occurrence of the species in bays. Lower salinity in bays should reduce the ability of L. clathrata to recover from damage sustained during, or just prior to, low-salinity periods. © 2011 Copyright Taylor and Francis Group, LLC.

Bibliographic Details

Katrina E. Kaack; Christopher M. Pomory

Informa UK Limited

Earth and Planetary Sciences; Biochemistry, Genetics and Molecular Biology; Agricultural and Biological Sciences

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