The transfer of zinc in two linked trophic levels in fresh water and its effect on the reproduction of Daphnia magna

Canli M.

JOURNAL OF FRESHWATER ECOLOGY, cilt.20, sa.2, ss.269-276, 2005 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 20 Sayı: 2
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1080/02705060.2005.9664966
  • Dergi Adı: JOURNAL OF FRESHWATER ECOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.269-276
  • Çukurova Üniversitesi Adresli: Evet

Özet

The green algae, Pseudokirchneriella subcapitata, was cultured in five different Zn concentrations (0, 50, 100, 500, and 1000 nM) for 4 d. Accumulation and toxicity of Zn in the algae increased with increasing Zn concentration, and highest and lowest algal growth rates occurred in medium containing 50 nM and 1000 nM Zn, respectively. There was a negative relationship (r = -0.89, P < 0.05) between Zn accumulation and algal growth. Diets prepared from these cultures were fed to Daphnia magna up to 7 d to investigate the Zn transfer between the two trophic levels. Feeding rate, growth, protein levels, and offspring production of the cladocerans were investigated.