The Clarence galaxias is scaleless and has a dark brown back with brown bars and bands extending down its sides, while the belly is a lighter yellow-cream color. Adults reach a body length of 12.5–14 cm and a maximum weight of 20 g.[2][3]
Distribution and habitatedit
The Clarence galaxias is a freshwater species and inhabits lakes as well as swamps and streams connected to lakes.[3] It is endemic to Tasmania's Derwent River catchment, including the Clarence Lagoon. Only seven breeding populations are currently known.[2]
This Galaxia is an ambush predator. They burrow or find a lair to predate from. Unless food is bountiful they show vigor and are aggressive during feeding .They tend to perch themselves on top of structures such as rocks using their pectoral fins regularly. They are more active during the evening. The foods observed eaten are only live foods such as nymphs, mosquito larve, and brine shrimp. Blood worms are an exception and also eaten frozen. Upon further observation, they clunkily get around swimming, turning their body they seem stiff in the mid section. They have tremendous strength relative to size with a thick front section, large gaping jaw and large fan like fins.
Referencesedit
^ abFreeman, R. (2019). "Galaxias johnstoni". IUCN Red List of Threatened Species. 2019: e.T8806A129040727. doi:10.2305/IUCN.UK.2019-3.RLTS.T8806A129040727.en. Retrieved 14 November 2021.
^ abcJean Jackson; David Crook (2002). (PDF). ASFB Newsletter. 32 (1). Australian Society for Fish Biology. Archived from the original (PDF) on 2016-03-04. Retrieved 2015-08-17.
^ ab"Galaxias johnstoni". Fish Base. Retrieved 9 February 2013.
This Osmeriformes-related article is a stub. You can help Wikipedia by expanding it.
clarence, galaxias, galaxias, johnstoni, species, fish, family, galaxiidae, endemic, tasmania, conservation, statusendangered, iucn, scientific, classificationdomain, eukaryotakingdom, animaliaphylum, chordataclass, actinopterygiiorder, galaxiiformesfamily, ga. The Clarence galaxias Galaxias johnstoni is a species of fish in the family Galaxiidae endemic to Tasmania Clarence galaxiasConservation statusEndangered IUCN 3 1 1 Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass ActinopterygiiOrder GalaxiiformesFamily GalaxiidaeGenus GalaxiasSpecies G johnstoniBinomial nameGalaxias johnstoniE O G Scott 1936 Contents 1 Description 2 Distribution and habitat 3 Conservation 4 Behavior 5 ReferencesDescription editThe Clarence galaxias is scaleless and has a dark brown back with brown bars and bands extending down its sides while the belly is a lighter yellow cream color Adults reach a body length of 12 5 14 cm and a maximum weight of 20 g 2 3 Distribution and habitat editThe Clarence galaxias is a freshwater species and inhabits lakes as well as swamps and streams connected to lakes 3 It is endemic to Tasmania s Derwent River catchment including the Clarence Lagoon Only seven breeding populations are currently known 2 Conservation editWhile locally common the species has been classified as endangered by the IUCN 1 It is under pressure from predation and competition from introduced brown trout and rainbow trout 2 Behavior editThis Galaxia is an ambush predator They burrow or find a lair to predate from Unless food is bountiful they show vigor and are aggressive during feeding They tend to perch themselves on top of structures such as rocks using their pectoral fins regularly They are more active during the evening The foods observed eaten are only live foods such as nymphs mosquito larve and brine shrimp Blood worms are an exception and also eaten frozen Upon further observation they clunkily get around swimming turning their body they seem stiff in the mid section They have tremendous strength relative to size with a thick front section large gaping jaw and large fan like fins References edit a b Freeman R 2019 Galaxias johnstoni IUCN Red List of Threatened Species 2019 e T8806A129040727 doi 10 2305 IUCN UK 2019 3 RLTS T8806A129040727 en Retrieved 14 November 2021 a b c Jean Jackson David Crook 2002 Clarence galaxias Galaxias johnstoni PDF ASFB Newsletter 32 1 Australian Society for Fish Biology Archived from the original PDF on 2016 03 04 Retrieved 2015 08 17 a b Galaxias johnstoni Fish Base Retrieved 9 February 2013 nbsp nbsp This Osmeriformes related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Clarence galaxias amp oldid 1189441834, wikipedia, wiki, book, books, library,
