This Sea-Migratory Trout Species Is Already Widespread Across The Northern Two-Thirds Of West Falkland And Northern To Central East Falkland And Its Range Is Still Expanding (Varnham, 2005). (Whitehead, J. (2008) Priorities for Control: A Risk Assessment of Introduced Species on the Falkland Islands. South Atlantic Invasive Species Project );
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- 15.1. Artificial - Aquatic – Water Storage Areas [over 8 ha]
- 5.1. Wetlands (inland) – Permanent rivers/streams/creeks (includes waterfalls)
- 5.5. Wetlands (inland) – Permanent freshwater lakes (over 8 ha)
- 9.1. Marine Neritic – Pelagic
- 9.10. Marine Neritic – Estuaries
Invasive. (Whitehead, J. (2008) Priorities for Control: A Risk Assessment of Introduced Species on the Falkland Islands. South Atlantic Invasive Species Project );
Are implicated in a massive decline in the endemic zebra trout population, one of only two native freshwater fish in the Falklands. Brown Trout may eventually spread to all the rivers and streams on the Falklands potentially threatening the survival of the native zebra trout. Brown trout are an important recreational fishery including for tourism, so it is likely that the wider community would support their spread and establishment across the Islands; however, this will have a cost in terms of impact on native fish, and spread should be prevented if possible. (Whitehead, J. (2008) Priorities for Control: A Risk Assessment of Introduced Species on the Falkland Islands. South Atlantic Invasive Species Project ); Negative impact on biodiversity. (Department of Agriculture, 2019. Biosecurity Workshops Report. Department of Agriculture);
Freshwater.
Blake D., Stanworth A., Wong L, Pagad S. (2020). Global Register of Introduced and Invasive Species of Falkland Islands (Islas Malvinas). Version 1.2. Invasive Species Specialist Group ISSG.; Whitehead, J. (2008) Priorities for Control: A Risk Assessment of Introduced Species on the Falkland Islands. South Atlantic Invasive Species Project ; Department of Agriculture, 2019. Biosecurity Workshops Report. Department of Agriculture; FishBase. (2024). FishBase: A global information system on fishes. Available at: https://fishbase.mnhn.fr/search.php;