Introductions Summary

อ้างอิงหลัก:	FAO 1997
To	New Zealand
FAO area	Oceania - Inland waters
From:	USA
FAO area	America, North - Inland waters
Year
Range	1901 - 1902
Period	1900-1924
Established in the wild	probably established, natural reproduction
Established in aquaculture	- rarely used	assisted/artificial reproduction
Significant ecological interactions	probably none - undecided
Significant socio-economic effects	unknown -
Introduced by:	government
Reason	angling/sport
Other reason	fisheries
Comments	Reintroduced in 1906. One individual was found in a high altitude South Island Lake. Probably introduced for the establishment of commercial salmon fisheries. Status is threatened and present only in Lake Pearson, Canterbury (Ref. 6452). The N.Z. Government Tourist Department imported lake trout to N.Z. releasing them in two shallow lakes in Canterbury. The fish survived in Lake Pearson and established a very small self-sustaining population with a few fish being caught each year. In 1977 and 1980 the Wildlife Service captured Lake trout from Lake Pearson. What affect this has had on the population is not known. Stomach contents and distribution of the fish caught suggest lake trout are confined to the deeper less productive habitat below the thermodine (Ref. 13730). Localized in South I. The range is stable (neither expanding nor declining) (Ref. 52336). Also Ref. 11115 and 13730. Ref: McDowall, R.M., 1990




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