Abstract
The primary objective of this study was to make a deep investigation on the concentration of chlorophyll a and ash-free dry mass (AFDM) estimates for algae growing on stones in Urumqi River located in an arid region of northwest China. The study was conducted on three sites. A highly improved method for measuring primary productivity in situ was used to estimate the primary production of algae growing on rocks (or algae epilithic) deposited in surface water. The results showed a low biomass with mean chlorophyll a content that was estimated at 5.9 mg/m 2 in the Urumqi River. Of the three sites studied, the mean gross primary productivity of periphyton was 394.89 mgC/m 2 day and AFDM 344.75 mg/m 2 . The
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
