Now showing items 6-10 of 27

  • Boat electrofishing survey of Apata Pond and Lake McLaren

    Hicks, Brendan J.; Bell, Dudley G.; Ring, C. Alex; Tempero, Grant Wayne (University of Waikato, 2004)
    We used New Zealand’s first successful electrofishing boat to catch koi carp (Cyprinus carpio haemaotopterus; Zhou et al. 2003) and rudd (Scardinius erythophthalmus) at two sites in the Bay of Plenty, North Island, New ...
  • Comparison of injuries to New Zealand rock lobsters (Jasus edwardsii) caused by hand versus snare collection

    Powrie, Warrick; Tempero, Grant Wayne (Royal Society of New Zealand, 2009)
    Following the prohibition in New Zealand of lobster snares in late 2005, we undertook research to compare the frequency and extent of injuries to rock lobsters (Jasus edwardsii) (Hutton) caused by recreational SCUBA divers ...
  • Destratification – fact sheet

    Tempero, Grant Wayne; Paul, Wendy J. (Lake Ecosystem Restoration New Zealand (LERNZ), University of Waikato, 2015)
    During summer, the surface waters of lakes warm and become less dense than the colder bottom waters. This process is known as stratification and prevents surface and bottom water mixing. Stratification can occur intermittently ...
  • Ecological monitoring of artificial destratification effects in Lake Rotoehu: 2014-2015

    Tempero, Grant Wayne (Environmental Research Institute, Faculty of Science and Engineering, The University of Waikato, 2015)
    Lake Rotoehu is a shallow (mean depth 8 m), polymictic eutrophic lake in the Rotorua lakes district. Catchment land use intensification has contributed to a decline in water quality and persistent cyanobacterial algal ...
  • Ecotoxicological review of alum applications to the Rotorua Lakes

    Tempero, Grant Wayne (Environmental Research Institute, Faculty of Science and Engineering, The University of Waikato, 2015)
    The use of alum (aluminium sulphate) has become a recognised technique for the restoration of freshwater systems. When added to water, alum dissociates and dissolved aluminium undergoes a series of hydrolysis reactions ...