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Characterization of Three Populations of Phallocryptus Spinosa (Branchiopoda, Crustacea) from North-East of Algeria

  • Mounia Amarouayache
  • Farid Derbal
Conference paper

Abstract

Phallocryptus spinosa (Thamnocephalidae), which was long considered as Branchinella spinosa, lives in saline lakes of America, Africa, and occidental Asia. There are very few data on its biology and ecology. It has been recently found in the Eastern Hauts Plateaux of Algeria and co-occurs with Artemia salina in Sebkha Ez-Zemoul. Three populations have been studied focusing on their biometrics and reproduction. During the sampling period in April 2005, only adults (more than 90%) and some pre-adults were found. Adults are short (16.14 ± 1.1–17.84 ± 2.65 mm) compared to Mediterranean populations. No differences were found between the total lengths of males and females. The latter are oviparous and begin to reproduce when they reach the length of at least 11.5 mm. They are not very fertile (15.6 ± 8.45–27.65 ± 14.49 cyst/brood) and produce cysts of a mean diameter range of 276.28 ± 18.79 to 292.18 ± 21.81 μm, according to the studied population.

Keywords

Less Significant Difference Sexual Maturity Saline Lake Spanish Population Young Stage 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • Mounia Amarouayache
    • 1
    • 2
  • Farid Derbal
    • 2
  1. 1.Institut de BiologieCentre Universitaire El-TarfEl-TarfAlgérie
  2. 2.Laboratoire Bioresources MarinesUniversité Badji-MokhtarAnnabaAlgérie

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