Periphyton communities and their environments in New Zealand rivers

摘要: Abstract The composition of periphyton communities was assessed over an extensive range New Zealand river environments during late‐summer low flows. chemical, hydrological, and watershed characteristics the sites were determined broad associations developed between several key variables. Eight identified 91 classified into groups according to presence first seven these communities. Most dominated by filamentous taxa. A taxonomic‐biomass classification also condensing site three, more general, classes based on their biomass. Sixty‐eight percent in low‐biomass class (i.e., < 20 g m−2 ash‐free dry weight). Twenty‐two environmental varied significantly across indicating strong habitat periphyton. Conductivity water most important variable. discriminant model tested ...