The Effect of Different Salinities on Biologic Performances of A. franciscana and Parthenogenetic Artemia in Laboratory Conditions
Subject Areas : Journal of Animal Biologyشیوا قنبری 1 , سولماز حکیم زاده 2 , رضا حیدری 3 , رامین مناف فر 4
1 - گروه زیست شناسی، دانشکده علوم، دانشگاه ارومیه، ارومیه، ایران - پژوهشکده آرتمیا و جانوران آبزی، دانشگاه ارومیه، ارومیه، ایران
2 - گروه زیست شناسی، دانشکده علوم، دانشگاه ارومیه، ارومیه، ایران - پژوهشکده آرتمیا و جانوران آبزی، دانشگاه ارومیه، ارومیه، ایران
3 - گروه زیست شناسی، دانشکده علوم، دانشگاه ارومیه، ارومیه، ایران
4 - پژوهشکده آرتمیا و جانوران آبزی، دانشگاه ارومیه، ارومیه، ایران
Keywords: Survival, Artemia, Biometry, biologic performance,
Abstract :
Brain shrimp Artemia is a unique animal of arthropods which can live in waters with very high salinities. These sever conditions make some changes on biologic performances and physiologic responses of the animal. In present study survival, growth and cyst diameter of two parthenogenetic and bisexual Artemia in two salinities 120g.l-1 and 210g.l-1 were studied. In this regard, both strains of the Artemia were reared with Dunaliella tertiolecta algae where survival and growth was assessed by days 3, 7, 11, 15. The produced cysts after maturation (in one month) were collected daily and the diameters of cysts were measured. The results revealed decreasing on survival rate with increasing in the both types of Artemia by which A. franciscana showed high performance in 210g.l-1 comparing to parthenogenetic Artemia. The total length and cyst diameter analyses of both Artemia in laboratory conditions revealed these factors as almost independent ecologic factor which should be used for populations of species identification of Artemia with very caution.
