12 May 2015
Freshwater Update 65 brings you the latest information from our Freshwater & Estuaries centre, including water quality maps and information, as well as river flows.
Also, this month we released a new Freshwater Fish Calendar. Read the media release
In this issue
Riverflows, January - March 2015
River flows were below normal in March and for the three months January to March over most of New Zealand.-
Weeds and the Rotorua Lakes
Submerged weed species are currently one of the major management challenges in the Rotorua Lakes. -
Busting myths on water weeds
Troublesome aquatic weeds have been an issue for the Rotorua Te Arawa Lakes for decades, but what do we really know about what drives water weed problems? -
Spraying as a solution
When invasive aquatic weeds establish in a lake, they usually result in detrimental effects on native biodiversity, amenity and utility values. -
The purpose of weed harvesting
Harvesting is one potential option to control nuisance growths of weed in lakes. -
Biosecurity Management Overview
The majority of current aquatic weeds were introduced to New Zealand via the aquarium and ornamental pond trade and these have been subsequently spread via deliberate spread and other human-mediated activities. -
Watching for Invasive Species
Invasive species continue to be one of the greatest threats to the Rotorua lakes and include not only water weeds, but other organisms too.