Some ecological indices of the Caspian Sea Amphipoda at the different depths Guilan offshore
عنوان مقاله: Some ecological indices of the Caspian Sea Amphipoda at the different depths Guilan offshore
شناسه ملی مقاله: JR_JIFRO-5-1_004
منتشر شده در در سال 1384
شناسه ملی مقاله: JR_JIFRO-5-1_004
منتشر شده در در سال 1384
مشخصات نویسندگان مقاله:
A.R. Mirzajani
B. Kiabi
S.A. Nezami
خلاصه مقاله:
A.R. Mirzajani
B. Kiabi
S.A. Nezami
In the present study, some ecological factors were studied for Amphipoda at different depths. The Shannon, Margalef, and Hill indices were used to determine the species diversity, richness and evenness, respectively. In addition, the association and niche overlap values were estimated. Indices of species richness and diversity were highest at ۵۰ and ۱۰۰m depths, respectively. The ordination of depths show that the highest dissimilarity was at ۲۰m depth and the lowest dissimilarity at ۱۰۰ meter. Results of interspecific association and specific overlap of species show that only a few species could have similar ecological requirements. Results show that Paraniphargoides derzhavini with Niphargoides grimmi and Stenogammarus compersus with Amathilina cristata had low associations. Corophium spinulosum with Corophium nobile and Stenogammarus compersus with Paraniphargoides derzhavini, however, had high associations.
کلمات کلیدی: Amphipoda, Diversity, Interspecific association, Caspian Sea, Iran
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1366756/