Australian grayling Prototroctes maraena
Threatened non-recreational species Gellibrand River CCMA
Key health indicators
| Survey year | 2017 | 2018 | 2019 | Recent recruitment | NO | NO | NO |
|---|---|---|---|
| Multiple size classes | NO | NO | NO |
| Mature fish present | SOME | NO | SOME |
Monitoring Results
| Monitoring year | 2017 | 2018 | 2019 |
|---|---|---|---|
| Fish per 1km of waterway | 2.15 | 0.62 | 0.62 |
| Largest fish by length (cm) | 15.7 | 11 | 17.3 |
| Largest fish by weight (g) | 44 | 10 | 68 |
| % of the catch that is legal size | N/A ^ | N/A ^ | N/A ^ |
^ This metric does not apply to this species.
Insufficient 2019 length data for frequency chart
Insufficient 2018 length data for frequency chart
Insufficient 2017 length data for frequency chart
Interpretation
Key Result: While numbers of Australian grayling were low, this species is rarely found in the Gellibrand River catchment. These are only the third (2017), fourth (2018) and fifth (2019) confirmed records of this flow-dependent species in the Gellibrand.
Stocking: No stocking has occurred.