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Keywords:

  • Scyliorhinus;
  • temperature;
  • photoperiod;
  • embryo;
  • growth

Photoperiod has no effect on the growth of embryonic dogfish. Conversely, developmental rates are highly susceptible to temperature variation. Embryos maintained at 16°C grew faster and ecloded earlier than those maintained at 10°C. Increased temperature had no effect on size at eclosion.