| 词条 | Mogurnda clivicola |
| 释义 |
| taxon = Mogurnda clivicola | authority = G. R. Allen & A. P. Jenkins, 1999 }} Mogurnda clivicola, commonly known as the Flinders Ranges mogurnda, Flinders Ranges purple-spotted gudgeon, Barcoo, or Bulloo mogurnda,[1] is a central Australian gudgeon of the family Eleotridae. DistributionFlinders Ranges gudgeons are found in permanent water in an isolated set of spring-fed creeks in the southern Gammon Ranges National Park in the arid South Australian outback.[2] These creeks are often in very steep-sided, rocky gorges.[1][2] This fish's habitat is usually isolated into separate pools and then subject to floods that change the water level by several metres.{{Citation needed|date=September 2009}} These fish have also been recorded in samples taken from the Barcoo and Bulloo Rivers in Queensland away from the main population, in the very different habitat of larger, muddy-bottomed rivers.[1][2] DescriptionFlinders Ranges mogurndas are medium-sized fish, with a maximum total length around 13 cm.[2][3]{{ref|size|[I]}} They are dark with a fine mottling of dark grey blotches on the upper side with semi-translucent fins. Usually their body is a paler colour underneath. These fish have a series of burnt orange-coloured stripes running backwards down their cheeks looking like warpaint. Roughly around the lateral line is a display of burnt orange-coloured spots interspersed with paler spots, with a single darker spot on the caudal peduncle. Males develop spectacular spawning colours in summer, namely a more brilliant display of orange spots along the side and to the tail. The anal and spiny and soft dorsal fins are edged with a tiny, iridescent, blue-white stripe. These stripes are somewhat subtle on most of the fins, but are prominent and eye-catching on the spiny dorsal fin. The males also develop a large amount of fat on the top of their heads, giving them a bulbous appearance.{{Citation needed|date=September 2009}} These fish have, in recent times been victims of a dramatic, piebald discolouration of unknown origin.{{Citation needed|date=September 2009}} Ecology and behaviourIn the Flinders Ranges, M. clivicola is the only species of fish found in the rocky pools which they inhabit.[1] They will bask lying on the shallow shelves of deeper rock pools, with their tails to one side.{{Citation needed|date=September 2009}} From above, in this position, they closely resemble the fallen gum leaves on the substrate. In the Barcoo River, the species usually co-exists with up to 10 other fish species in the typically mud-bottomed lowland streams of that system.[1] Their predators consist mostly of larger birds.{{Citation needed|date=September 2009}} They are presumed to be ambush predators.[1] Tadpoles, insects, and other macroinvertebrates probably form a large part of their diet.{{Citation needed|date=September 2009}} Breeding and spawning is a complex ritual spread over days.[1] These fish spawn when the water temperature reaches 20 °C or higher.[1][2] The males care for the eggs and guard and fan them with their pectoral fins.[1] The males' behaviour becomes quite territorial and aggressive during breeding season. They have been known to chase the other fish around.{{Citation needed|date=September 2009}} References1. ^1 2 3 4 5 6 7 8 {{cite web | url = http://www.desertfishes.org/australia/fish/mogucliv.shtml | publisher = Desert Fishes Council Australia | title = Mogurnda clivicola Allen & Jenkins 1999 Flinders Ranges, Barcoo, or Bulloo mogurnda | accessdate = 17 September 2009}} 2. ^1 2 3 4 {{cite book | last1 = Allen | first1 = G.R. | last2 = Midgley | first2 = S.H. | last3 = Allen | first3 = M. | title = Freshwater Fishes of Australia | publisher = Western Australian Museum | year = 2002 | location = Perth | page = 306 | isbn = 0-7307-5486-3}} 3. ^{{FishBase|genus=Mogurnda|species=clivicola|month=November|year=2006}} External links
Further reading
3 : Freshwater fish of Australia|Eleotridae|Fish described in 1999 |
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