A survey of Lake Roxburgh, a recent hydro-electric dam
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This survey was carried out for the Otago Acclimatisation Society which was considering the introduction of the Mackinaw Char or Lake Trout (Salvelinus namaycush).
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This survey was carried out for the Otago Acclimatisation Society which was considering the introduction of the Mackinaw Char or Lake Trout (Salvelinus namaycush).
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This paper deals with data on the ecology of the brown trout collected during two visits to the Hinds River in 1962. Electric fishing and gill netting were used to capture 2,325 brown trout. Brooh. trout (Salvelinus fontinalis), quinnat salmon (Oncorhynchus tschawytcha), Eleotridae, Galaxiidae, Retropinnidae, torrent fish (Cheimarrichthys), and eels were also captured.
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Four species commonly occur-yellowfin tuna, Thunnus (Neothunnus) albacares; skipjack, Katsuwonus pelamis; albacore, Thunnus germo; and southern bluefin tuna, Thunnus thynnus maccoyii.
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Since Holloway's paper (1954) on changes in Southland forests, attention has naturally been directed towards the possibility of corresponding evidence in the North Island that might prove or disprove his thesis. Changes are conspicuous and widespread in various types of vegetation; their interpretation however has only produced very tentative evidence in support.
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