Modelling of a relationship between phosphorus, pH, calcium and chlorophyll-a concentration Modelling of a relationship between phosphorus, pH, calcium and chlorophyll-a concentration
Invloed van stikstofbemesting, grondtipe en waterstremming op die produksie en watergebruikdoeltreffendheid van Digitaria eriantha cv. Irene onder glashuis toestande Invloed van stikstofbemesting, grondtipe en waterstremming op die produksie en watergebruikdoeltreffendheid van Digitaria eriantha cv. Irene onder glashuis toestande
Observations on aspects of the biology Pseudocrenilabrus philander (M. Weber, 1897) from a subtropical South African impoundment Observations on aspects of the biology Pseudocrenilabrus philander (M. Weber, 1897) from a subtropical South African impoundment
Developing environmental guidelines for freshwater aquacultural operations: A case study Developing environmental guidelines for freshwater aquacultural operations: A case study
On the treatment of fish filleting waste water by means of rotating biological contactors On the treatment of fish filleting waste water by means of rotating biological contactors
Filter nozzle and underdrain systems used in rapid gravity filtration Filter nozzle and underdrain systems used in rapid gravity filtration
Microbiological survey of open recirculating coolong water systems and their raw water supplies at twelve fossil-fired power stations Microbiological survey of open recirculating coolong water systems and their raw water supplies at twelve fossil-fired power stations
An experimental study of flow over artificial bed forms An experimental study of flow over artificial bed forms
Flood-associated mass mortality of fishes in the Sunday Estuary Flood-associated mass mortality of fishes in the Sunday Estuary