Danio margaritatus: Difference between revisions
| synonyms=””Celestichthys margaritatus” Roberts, 2007
| synonyms=””Celestichthys margaritatus” Roberts, 2007
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””’Danio margaritatus””’, the ”’celestial pearl danio”’, often referred to in the aquarium trade as ”’galaxy rasbora”’ or ””’Microrasbora” sp. ‘Galaxy””,Clarke (2007b) is a small [[cyprinid]] from [[Myanmar]] and [[Northern Thailand]]{{cite web |url=https://www.seriouslyfish.com/species/celestichthys-margaritatus |title=Celestichthys margaritatus – Celestial Pearl “Danio” (Danio margaritatus) |accessdate=2023-12-21 |website=seriouslyfish.com}}（In [[Salween]] basin）. It has so far been found only in a very small area near [[Hopong]] east of [[Inle Lake]], at an elevation of over 1,000 m (3,400 ft). Its [[habitat]] is part of the [[Salween]] basin, namely the [[Nam Lang]] and [[Nam Pawn]] Rivers. Discovered in 2006, the [[species]] quickly appeared in the [[fishkeeping|aquarium trade]], where its small size and bright colours made it an instant hit.Clarke (2006)
””’Danio margaritatus””’, the ”’celestial pearl danio”’, often referred to in the aquarium trade as ”’galaxy rasbora”’ or ””’Microrasbora” sp. ‘Galaxy””,Clarke2007b is a small [[cyprinid]] from [[Myanmar]] and [[Northern Thailand]]{{cite web |url=https://www.seriouslyfish.com/species/celestichthys-margaritatus |title=Celestichthys margaritatus – Celestial Pearl “Danio” (Danio margaritatus) |accessdate=2023-12-21 |website=seriouslyfish.com}}（In [[Salween]] basin）. It has so far been found only in a very small area near [[Hopong]] east of [[Inle Lake]], at an elevation of over 1,000 m (3,400 ft). Its [[habitat]] is part of the [[Salween]] basin, namely the [[Nam Lang]] and [[Nam Pawn]] Rivers. Discovered in 2006, the [[species]] quickly appeared in the [[fishkeeping|aquarium trade]], where its small size and bright colours made it an instant hit.Clarke2006
==Description==
==Description==
==Ecology==
==Ecology==
The fish lives in small ponds created by seeping groundwater or overflow from small brooks or springs. Water temperature in January was rather low (22–24 °C), but as the habitat is very shallow, it would heat up quickly during hot spells, thus ”D. margaritatus” is probably tolerant of temperatures above the low 20s. As in most water bodies in the Inle drainage, the water is slightly [[alkaline]]. The habitat is heavily vegetated with [[Hydrocharitaceae]] similar to ”[[Elodea]]” (water weed).
The fish lives in small ponds created by seeping groundwater or overflow from small brooks or springs. Water temperature in January was rather low (22–24 °C), but as the habitat is very shallow, it would heat up quickly during hot spells, thus ”D. margaritatus” is probably tolerant of temperatures above the low 20s. As in most water bodies in the Inle drainage, the water is slightly [[alkaline]]. The habitat is heavily vegetated with [[Hydrocharitaceae]] similar to ”[[Elodea]]” (water weed).
The celestial pearl danio shares its habitat with a very few fish species: a ”[[Microrasbora]]” similar to ”[[Microrasbora rubescens|M. rubescens]]”, a rosy [[loach]] (”[[Yunnanilus]]”, possibly a new species, and the [[dwarf snakehead]] ”[[Channa harcourtbutleri]]”.“harbourtbutleri” in Roberts (2007) is a ”[[lapsus]]”. The latter species presumably is the only known significant [[predator]] of ”D. margaritatus”.Clarke (2007a) mentions ”[[Danio sondhii]]”, but not ”Microrasbora” and ”Channa”; it is not clear on what data this information is based.
The celestial pearl danio shares its habitat with a very few fish species: a ”[[Microrasbora]]” similar to ”[[Microrasbora rubescens|M. rubescens]]”, a rosy [[loach]] (”[[Yunnanilus]]”, possibly a new species, and the [[dwarf snakehead]] ”[[Channa harcourtbutleri]]”.“harbourtbutleri” in Roberts (2007) is a ”[[lapsus]]”. The latter species presumably is the only known significant [[predator]] of ”D. margaritatus”.Clarke (2007a) mentions ”[[Danio sondhii]]”, but not ”Microrasbora” and ”Channa”; it is not clear on what data this information is based.
The species is locally fished for food to some extent; it is dried and bought as a [[protein]] source by poor people. A can of some 500 ”D. margaritatus” sold for food fetched about 25 [[kyat]] (about 2 UK pounds/3.9 US$/2.7 EUROfficial exchange rate of January 21, 2008, as per [http://www.xe.com/ucc/ XE.com Universal Currency Converter].) before the fish was discovered for the aquarium trade.Clarke (2007a)
The species is locally fished for food to some extent; it is dried and bought as a [[protein]] source by poor people. A can of some 500 ”D. margaritatus” sold for food fetched about 25 [[kyat]] (about 2 UK pounds/3.9 US$/2.7…