Elected representatives in government are in charge of the policy and funding that can make or break saving threatened species. Their decisions and actions matter.
Barker has or used to have 48 threatened animals within its boundaries. One of them is me, the Murray Hardyhead.
We took care to attach appropriate images that are as close to representative of each species as our resources and the availability of images allowed. However, we could not ensure perfect accuracy in every case. Some images show species that share the same genus but not at the species or subspecies level.
Murray Hardyhead
Craterocephalus fluviatilis
Status: Endangered
The Environment Protection and Biodiversity Conservation Act 1999 (EPBC Act) lists threatened species under six categories:
Extinct, Extinct in the wild, Critically Endangered, Endangered, Vulnerable, Conservation dependent. Read more about these categories
Craterocephalus fluviatilis is found across 4 electorates.
The Murray Hardyhead is a small, moderately deep bodied fish which grows to a maximum length of 76 mm, but is commonly 40–65 mm. Males have been recorded at 27–34 mm and females at 41–43 mm caudal fork length. Its body is predominantly luminescent silver to dark golden dorsally, with a distinct mid-lateral stripe, and a pale abdomen. It has a small mouth with protrusible lips, a restricted gape, and a single row of small teeth on the anterior part of both jaws.The species is usually found in schools of distinct size classes: juveniles are found throughout lakes, in open areas associated with edge structure; and adults have been observed over shallow habitats including open sand banks.¹
Explore more about this species on the Atlas of Living Australia
Changed surface and groundwater regimes
Climate change and severe weather
Habitat loss, fragmentation and degradation
Invasive species and diseases
Explore more about the threats facing species on our Resources page.
- Jumping-jack Wattle (Acacia enterocarpa)
- Hairy-pod Wattle (Acacia glandulicarpa)
- Menzel's Wattle (Acacia menzelii)
- Neat Wattle (Acacia rhetinocarpa)
- Spiller's Wattle (Acacia spilleriana)
- Spiny Everlasting (Acanthocladium dockeri)
- River Swamp Wallaby-grass (Amphibromus fluitans)
- White-beauty Spider-orchid (Caladenia argocalla)
- Pink-lipped Spider-orchid (Caladenia behrii)
- Limestone Spider-orchid (Caladenia calcicola)
- Coloured Spider-orchid (Caladenia colorata)
- Coast Spider-orchid (Caladenia conferta)
- Elegant Spider-orchid (Caladenia formosa)
- Ornate Pink Fingers (Caladenia ornata)
- Little Dip Spider-orchid (Caladenia richardsiorum)
- Stiff White Spider-orchid (Caladenia rigida)
- Greencomb Spider-orchid (Caladenia tensa)
- Candy Spider-orchid (Caladenia versicolor)
- Avenue Cassinia (Cassinia tegulata)
- Toothed Helmet-orchid (Corybas dentatus)
- Bell Flower Hyacinth Orchid (Dipodium campanulatum)
- Trailing Hop-bush (Dodonaea procumbens)
- Peep Hill Hop-bush (Dodonaea subglandulifera)
- Osborn's Eyebright (Euphrasia collina subsp. osbornii)
- Clover Glycine (Glycine latrobeana)
- Wingless Raspwort (Haloragis exalata subsp. exalata)
- Sand Ixodia (Ixodia achillaeoides subsp. arenicola)
- Silver Daisy-bush (Olearia pannosa subsp. pannosa)
- Lowan Phebalium (Phebalium lowanense)
- Kangaroo Island Pomaderris (Pomaderris halmaturina subsp. halmaturina)
- Maroon Leek-orchid (Prasophyllum frenchii)
- Pale Leek-orchid (Prasophyllum pallidum)
- Plum Leek-orchid (Prasophyllum pruinosum)
- Dense Leek-orchid (Prasophyllum spicatum)
- Sturdy Leek-orchid (Prasophyllum validum)
- Monarto Mintbush (Prostanthera eurybioides)
- Sandhill Greenhood Orchid (Pterostylis arenicola)
- Green-striped Greenhood (Pterostylis chlorogramma)
- Leafy Greenhood (Pterostylis cucullata)
- Two-bristle Greenhood (Pterostylis psammophila)
- Hale Dwarf Greenhood (Pterostylis sp. Hale )
- Swamp Greenhood (Pterostylis tenuissima)
- Desert Greenhood (Pterostylis xerophila)
- Large-fruit Fireweed (Senecio macrocarpus)
- Superb Groundsel (Senecio megaglossus)
- Swamp Fireweed (Senecio psilocarpus)
- Woods Well Spyridium (Spyridium fontis-woodii)
- Slender Darling-pea (Swainsona murrayana)
- Yellow Swainson-pea (Swainsona pyrophila)
- Metallic Sun-orchid (Thelymitra epipactoides)
- Blue Star Sun-orchid (Thelymitra hygrophila)
- Spiral Sun-orchid (Thelymitra matthewsii)
- Mount Lofty Speedwell (Veronica derwentiana subsp. homalodonta)
- Swamp Everlasting (Xerochrysum palustre)
You are in federal electorate Barker.