Amiri, K., Shabanipour, N. and Eagderi, S. 2017. Using kriging and co-kriging to predict distributional areas of Kilka species (Clupeonella spp.) in the southern Caspian Sea. International Journal of Aquatic Biology. 5, 2 (Jun. 2017), 108–113. DOI:https://doi.org/10.22034/ijab.v5i2.309.