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Species:
Trichocerca relicta Donner, 1950 		Valid Name:
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Parent taxa:             Genus / Family / Order / Superorder / Subclass / Class
Trichocerca: Trichocercidae: Ploima: Pseudotrocha: Monogononta: Eurotatoria 		Taxonomic / nomenclatural notes:
The taxonomy of Trichocerca relicta Donner relative to T. obtusidens (Olofsson) requires further scrutiny. Conspecificity of the two has been suggested by De Smet (1988:14) [Ref.17147], who erroneously gave priority to T. relicta, the later published name. Segers (2007) [Ref.16970] took the same line, but recognized the senior name T. obtusidens as the valid species name. Both species are unmistakable however, by a different morphology of their toes, a character which is not usually subject to significant variation in this group: they are equal in T. relicta, but of clearly different length and strength in T. obtusidens. Both names are therefore tentatively retained as valid here, until more information becomes available, particularly on trophi morphology of T. obtusidens.
Nomenclatural status:
name in current use 		Species group name declinable:
yes 		Validity:
valid 		Taxon Rank:
Species 		Availability:
available
Original Combination:
Trichocerca relicta 		Original Spelling:
Trichocerca relicta 		Latest Revision:
Koste, W (1978): Rotatoria. Die Rädertiere Mitteleuropas. Ein Bestimmungswerk, begründet von Max Voigt. Überordnung Monogononta. 673, 234 pls.
Page last modified on: 16.10.2019 by C.D. Jersabek
Original description
 
Donner, J (1950): Zoologischer Anzeiger 145
p.147, fig.12
Donner, J (1950): Zoologischer Anzeiger 145 p.147, fig.12
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Literature documentations
 
Wulfert, K (1961): Archiv für Hydrobiologie 58
p.96, fig.35
Wulfert, K (1961): Archiv für Hydrobiologie 58 p.96, fig.35
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Observation images
 
Image courtesy of ANSP (Jersabek et al. 2003) [Ref.15798]; female, lateral view (sub T. brachyura (Gosse))
Image courtesy of ANSP (Jersabek et al. 2003) <a href='../../Reference/Index/15798' target='_blank'>[Ref.15798]</a>; female, lateral view (sub T. brachyura (Gosse))
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Chengalath, R;G Mulamoottil, 1975 Canadian Journal of Zoology53 
De Smet, W H, 1989 Natuurwetenschappelijk Tijdschrift69 
Donner, J, 1950 Zoologischer Anzeiger145Trichocerca relicta Donner, 1950
Jersabek, C D, 1996 Berichte der naturwissenschaftlich-medizinischen Vereinigung Salzburg11Trichocerca relicta Donner, 1950
Jersabek, C D, 2003 Bishop Museum Occasional Papers74Trichocerca relicta Donner, 1950
Jersabek, C D;E Bolortsetseg, 2010 Proceedings of the Academy of Natural Sciences of Philadelphia159Trichocerca relicta Donner, 1950
Jersabek, C D;H Segers;B J Dingmann, 2003 The Academy of Natural Sciences of Philadelphia, Special Publications20Trichocerca relicta Donner, 1950
Jersabek, C D;R Schabetsberger, 1996 Limnologica (Berlin)26Trichocerca relicta Donner, 1950
Moosleitner, E, 2000 Ökologie und Biogeographie alpiner Rädertiere (Rotifera) und Kleinkrebse (Copepoda, Cladocera). Trichocerca relicta Donner, 1950
Morales-Baquero, R, 1987 Hydrobiologia147 
Wulfert, K, 1961 Archiv für Hydrobiologie58
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IUILocality(sorted ascending)
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Admont, fishpond
- / Pond, freshwater (fishpond)01.11.1943Literature / - / Published Information3202
L
 
Ahu Noa Marsh
Macrophytes (semi-emersed), semi-terrestrial vegetation, and bottom sediments / Marsh, freshwater (montane)27.04.2001Expedition, Literature / - / Published Information260
L
?
Atlantic Co. - n.o.s. -
- / -01.01.1942Collection / - / Specimen preparations2048
C
 
Bog pond (Almboden)
Littoral microhabitats / Pond, peat bog (alpine)25.08.1990Literature / - / Published Information130
L
 
Brunnkarsee
Bottom sediments (littoral sand, cobble, gravel) / Lake, freshwater (alpine, ultraoligotrophic)21.09.1991Literature / - / Published Information130
L
 
Daxer, swimming pond
Open water / Pond, freshwater29.08.2007CJ unpubl. / - / Unpublished Information, own observations (CJ)1
F
 
Diegos Taro Farm
Water fern interrhizon (Azolla sp.), and bottom sediments / Taro cultivation pond (lo'i kalo )22.03.2001Expedition, Literature / - / Published Information2308
L
 
Dreibrüdersee
Littoral microhabitats / Lake, freshwater (alpine)17.08.1986Literature / - / Published Information1
L
 
Eckelgrubensee
Littoral microhabitats / Lake, freshwater (alpine)04.08.1990Literature / - / Published Information130
L
 
Eckelgrubensee
Macrophytes / Lake, freshwater (alpine)04.08.1990Literature / - / Published Information130
L
 
Erzwiessee (Grosser)
Psammolittoral / Lake, freshwater (alpine)05.08.1990Literature / - / Published Information130
L
 
Erzwiessee (Kleiner)
Mud surface / Pond, freshwater (alpine)05.08.1990Literature / - / Published Information130
L
 
Feichtauhütte, nearby pond
Littoral microhabitats / Pond, freshwater (alpine)26.08.1990Literature / - / Published Information130
L
 
Feichtauhütte, pond on trail
Mud surface / Pond, freshwater (alpine)26.08.1990Literature / - / Published Information130
L
 
Fong's Taro Farm
Bottom sediments, and POM / Taro cultivation pond (lo'i kalo )15.02.2001Expedition, Literature / - / Published Information260
L
 
Gamskarlsee
Bottom sediments / Lake, freshwater (alpine, ultraoligotrophic)10.08.1992Literature / - / Published Information130
L
 
Gamskarlsee
Moss (submersed) / Lake, freshwater (alpine, ultraoligotrophic)10.08.1992Literature / - / Published Information130
L
cf.
Grinnköpfel, pasture pond
Littoral microhabitats / Pond, freshwater (alpine pastureland)05.08.1987CJ unpubl. / - / Unpublished Information, own observations (CJ)1
Ptk: "T. collaris f. major" (?)
F
 
Herzerlsee
Littoral microhabitats / Pond, peat bog (alpine)25.08.1990Literature / - / Published Information130
L
 
Herzerlsee, nearby Pond 1
Littoral microhabitats / Pond, peat bog (alpine)25.08.1990Literature / - / Published Information130
L
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ANSP 1257 Trichocerca relicta Donner, 1950
Orig.Id.: Diurella brachyura (Gosse, 1851) 		?females23 
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Geographical Range:
Cosmopolite, incl. PAC.
Macrohabitat:
Lake, freshwater; Lake, freshwater (alpine); Lake, freshwater (alpine, ultraoligotrophic); Lake, freshwater (subalpine); Marsh, freshwater (montane); Pond, freshwater; Pond, freshwater (alpine pastureland); Pond, freshwater (alpine); Pond, freshwater (artificial); Pond, freshwater (coastal); Pond, freshwater (eutrophic); Pond, freshwater (fishpond); Pond, oligosaline; Pond, peat bog (alpine); Pool, dystrophic bog; Pool, freshwater (alpine pastureland); Pool, freshwater (alpine); River, freshwater; Stream backwater, fresh; Stream, freshwater; Stream, freshwater (alpine); Taro cultivation pond (lo'i kalo );
Microhabitat:
Bottom sediments; Bottom sediments (littoral sand, cobble, gravel); Bottom sediments, and POM; Littoral microhabitats; Macrophytes; Macrophytes (Ceratophyllum, Potamogeton); Macrophytes (Myriophyllum); Macrophytes (Myriophyllum, Potamogeton); Macrophytes (Myriophyllum, Potamogeton, Ranunculus); Macrophytes (Potamogeton pectinatus?); Macrophytes (Ranunculus); Macrophytes (semi-emersed), semi-terrestrial vegetation, and bottom sediments; Macrophytes (Utricularia, Nymphaea); Mixed sample: open water, and bottom sediments; Mixed sample: open water, and periphyton (on Ceratophyllum); Moss (Drepanocladus, Scapania); Moss (Sphagnum, peat moss); Moss (submersed); Mud surface; Open water; Open water (tychoplanktonic); Periphyton; Psammolittoral; Reed belt, open water between and periphyton on reed stems; Stream bottom: POM (sand, gravel); Stream bottom: POM (sand, gravel, mud); Water fern interrhizon (Azolla sp.), and bottom sediments;
Temperature:
5.70°C to 27.80°C, avg=16.11°C, n=61 		Redox:
-181.00mV to -10.00mV, avg=-66.60mV, n=10
Oxygen:
0.60mg/l to 14.60mg/l, avg=7.46mg/l, n=33 		Conductivity:
5.00µs/cm to 6940.00µs/cm, avg=229.20µs/cm, n=61
Saturation:
7.00% to 177.90%, avg=90.27%, n=33 		TDS:
16.00mg/l to 3670.00mg/l, avg=475.58mg/l, n=12
PH:
4.40 to 77.00, avg=8.13, n=60 		Salinity:
0.00ppt to 3.80ppt, avg=0.45ppt, n=13
Ecology summary:
Periphytic and epibenthic in stagnant and running freshwater; also in peat bogs, marshes, paddy fields, and occasionally in athalassic oligosaline waters; detritus-rich sediments, submerged (macrophytes, moss), semi-emerse (sedges, reed), and floating (water ferns) vegetation, and on sand; haloxenic, eurythermic, with preference for cold-water habitats (Jersabek & Bolortsetseg, 2010) [Ref.18457]. NB: Ecology and distribution pattern probably blurred by confusions with T. obtusidens (Olofsson) (cf. Segers, 2003 [Ref.15833], who suggests these are synonyms) and T. brachyura (Gosse).
Food:
 
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Afrotropis- n.s. -- n.s. -- n.s. -- n.s. -- n.s. -
Australis- n.s. -- n.s. -- n.s. -- n.s. -- n.s. -
Nearctis- n.s. -- n.s. -- n.s. -- n.s. -- n.s. -
Neotropis- n.s. -- n.s. -- n.s. -- n.s. -- n.s. -
PacificHawaiianPacific (Oceania)United States of America (Hawaii)HawaiiHawaii Co.
PacificHawaiianPacific (Oceania)United States of America (Hawaii)HawaiiKauai Co.
PacificHawaiianPacific (Oceania)United States of America (Hawaii)HawaiiOahu Co.
PalaearctisP1 EuropeanEuropeAustriaKärntenBezirk Spittal a.d. Drau
PalaearctisP1 EuropeanEuropeAustriaOberösterreichBezirk Gmunden
PalaearctisP1 EuropeanEuropeAustriaOberösterreichBezirk Kirchdorf a.d. Krems
PalaearctisP1 EuropeanEuropeAustriaSalzburgFlachgau
PalaearctisP1 EuropeanEuropeAustriaSalzburgPinzgau
PalaearctisP1 EuropeanEuropeAustriaSalzburgPongau
PalaearctisP1 EuropeanEuropeAustriaSalzburgTennengau
PalaearctisP1 EuropeanEuropeAustriaSteiermarkBezirk Liezen
PalaearctisP2 SiberianAsiaMongoliaArhangaiÖgiynuur soum
PalaearctisP2 SiberianAsiaMongoliaHovdErdenebüren soum
PalaearctisP2 SiberianAsiaMongoliaHövsgölHanh soum
PalaearctisP2 SiberianAsiaMongoliaHövsgölTsagaannuur soum
PalaearctisP2 SiberianAsiaMongoliaUvsSagil soum
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