A recent study into fish populations of the lower Goulburn River has shown a diverse range of native fish exists. Although Murray cod (Maccullochella peelii peelii) are the most abundant large-bodied native species in the lower Goulburn River, few exceed the minimum legal size, now 600mm.
A recent study into fish populations of the lower Goulburn River has shown a diverse range of native fish exists. Although Murray cod (Maccullochella peelii peelii) are the most abundant large-bodied native species in the lower Goulburn River, few exceed the minimum legal size, now 600mm.
Mark Turner, River Health Project Coordinator said "This is important information, from research work being undertaken by the Arthur Rylah Institute for Environmental Research for the Goulburn Broken Catchment Management Authority. The information suggests that Murray cod are being removed from the Goulburn before they reach prime breeding size'.
The study also suggests the lower Goulburn River supports a breeding population of the threatened Trout cod (Maccullochella macquariensis). "Although in low numbers, both fish and larvae were collected during sampling" Mr Turner said.
Wayne Koster, Environmental Scientist from Arthur Rylah Institute said "The study has also shown that a number of exotic species occur in the lower Goulburn River namely carp (Cyprinus carpio), redfin (Perca fluviatilis), goldfish (Carassius auratus), oriental weatherloach (Misgurnus anguillicaudatus), and eastern gambusia (Gambusia holbrooki)". Carp and the most abundant of all large-bodied fish found during the study.
"The monitoring of native fish within the region is a critical part of the river health program. The information is a key indicator of the health of our waterways and the data used to assess the response to various environmental cues and effect of restoration activities," Mr Turner said.
For further information or to see the full report visit www.gbcma.vic.gov.au.
Release ends.
For more information contact:
Marli Kelly on 0409 410 178