Document ID: chunk:federal_register_of_legislation:F2019L00106:body:0:p25
Version: federal_register_of_legislation:F2019L00106
Segment Type: other
Provision Reference: 
Character Range: 67132–70011

into the Ovens River (Oxley Flats to Rocky Point).
    * 2015 – 5000 in February into Expedition Pass Reservoir (Farraday); 12 750 in February into the Goulburn River (Molesworth to Trawool), and; 13 600 in February into the Ovens River (Oxley Flats to Rocky Point).
    * 2014 – 5000 in February into Expedition Pass Reservoir (Farraday); 27 500 in February into the Goulburn River (Molesworth to Trawool), and; 40 500 in February into the Ovens River (Myrtleford area).
    * 2013 – 5000 in January into Lake Dartmouth (Dartmouth); 5000 in January into Expedition Pass Reservoir (Farraday); 6320 in January into the Goulburn River (above Nagambie Lake to Seymour), and; 6320 in January into the Ovens River (Myrtleford area)
    * 2012 – 3620 in January into Expedition Pass Reservoir (Farraday).
    * 2011 – 3000 in February into Expedition Pass Reservoir (Farraday); 1325 into the Ovens River at Rocky Point and 1325 at Whorouly Bridge, and; 2650 into William Hovell Lake (Cheshunt South).
    * 2010 – 2800 in February and 500 in March into Expedition Pass Reservoir (Farraday) and 250 into Holland's Creek (Tatong) in February (Gray 2010; Vic DEPI 2014a; 2014b; Vic DEDJTR 2015b; VFA 2017).
Fingerlings have also been previously stocked in the Upper Coliban Reservoir near the town of Tylden (Lintermans, 2007), however this population is likely extirpated (Vic DELWP pers. comm., 2017).
The small Macquarie perch population in Yea River is likely to be derived from the stockings which occurred there in the 1980s and 90s (Kearns & Tonkin 2015). At least three age cohorts have been observed there, confirming natural recruitment is occurring, albeit at very low levels (Kearns & Tonkin 2015).

6 Decline and Threats

    6.1 Decline

There was a lack of focussed scientific studies when the main declines for Macquarie perch occurred between the 1920–1960. The best known work of early accounts of the fish fauna of the Murray-Darling Basin was conducted by Colonel John O. Langtry between 1949–1950 (Cadwallader 1977). Langtry's study focussed on lowland habitats and, as Langtry notes, followed significant changes to the native fish compositions in the system already (Cadwallader 1977; Trueman 2011).
However, the research of oral histories, newspaper records and photographs undertaken by Trueman (2011), obtained more records in the Murray-Darling Basin of Macquarie perch than for any other individual species, which suggests that its abundance was 'prolific' in the first 100 years of European settlement of Australia. Trueman (2011) uses an approach referred to as 'historical triangulation', which is becoming increasingly accepted in documenting environmental change in ecological studies. Triangulation refers to the practice of using two or more sources to verify observations, and its use is well established in the social sciences and is used by doctors