alfredi

Parosphromenus alfredi (Foto:Dr.J.Schmidt)

Kot­te­lat & Ng 2005

First descrip­tion: The Raf­fles Bul­letin of Zool­ogy 2005 Sup­ple­ment No.13: 102 f.

Char­ac­ter­is­tics: Dor­sal struc­ture: XII-​XIV, 56, total 1819, anal fin: XI-​XIII, 810, total 2022. ♂ in breed­ing colour­with blue and turquoise rib­bons and large black areas in the unpaired fins, addi­tion­ally with mostly nar­row red seams; pelvic fins whitish to blue with medium long fil­a­ments. ♀ dis­tinc­tion from other types of har­veyi group dif­fi­cult to impos­si­ble. ♀ courtship colour­ing pale beige to yel­low­ish. While the basic colour pat­tern is rel­a­tively con­stant, in detail there are still sig­nif­i­cantly different-​colored vari­eties, which might have orig­i­nally belonged to sep­a­rate populations.

Sim­i­lar species:high, espe­cially with partly mixed blue/​red finned species with round cau­dal fin like rub­ri­mon­tis, tweed­iei, opal­lios. There are con­jec­tures that the close prox­im­ity of its area of occur­rence to tweediei´s has pos­si­bly led to nat­ural hybrids. But since the two species occur on the oppo­site sides of the Sin­ga­pore strait this is not very likely with­out human interference.

Occur­rence /​Dis­tri­b­u­tion: West­ern Malaysia, Johore, area of Kota Tinggi, Mawai and Desaru. Orig­i­nally occur­ing in peat for­est swamps, but today it only exists in its rem­nants. The species can partly still be found there in streams and brooks or in road­side canals altered by development..

Threat: very high. Large parts of the orig­i­nal range are no longer hab­it­able for the species. Even the for­mer aquar­ium stocks are almost extinct so the remain­ing fish deserve renewed atten­tion and breed­ing efforts.

Discovery/​First import:it is likely that the species has been found occa­sion­ally since the fifties. Ng et al. col­lected the holo– and paratypes since 1992. The first descrip­tion was made in 2005, cer­tainly con­sid­er­ably later than the first appear­ances of the species in trade.

Trade: the attrac­tive species has obvi­ously been traded repeat­edly mainly in the nineties, some­times in dif­fer­ent vari­eties (see e.g. spec. aff. alfredi “Mim­bon 98) and was bred and dis­trib­uted in con­sid­er­able num­bers by Hall­mann (D). Since then is has occurred sig­nif­i­cantly less fre­quent in trade, prob­a­bly because of the shrink­ing nat­ural habitats.

Care /​Breed­ing: type local­ity with black water of pH 4.5 to 5.0. Stan­dard breed­ing con­di­tions for Paros. After sev­eral gen­er­a­tions, fer­til­ity prob­lems and dwarf growth occurred. The unclear sit­u­a­tion of the appar­ently more or less dif­fer­ent local vari­eties and the tem­po­rary trade with blue and red-​finned licorice gouramis has most likely led to mix­ing dif­fer­ent vari­eties even in the aquar­ium stock.

Behav­iour /​Par­tic­u­lar­i­ties: typ­i­cal licorice gourami of the harveyi-​group. Head-​down courtship. Very attrac­tive, colour­ful species.

Lit­er­a­ture:

Weblinks: Paros alfredi and its destruc­ted habitat

(PF and DA)

P. alfredi male flashing. Copyright Haji BadaruddinP. alfredi couple Copyright Karen Koomans

Biotope of parosphromenus alfredi

Biotope of P. alfredi in Sedili, Copyright C. HinzBiotope of P. alfredi in Sedili, Copyright C. HinzBiotope of P. alfredi in Sedili, Copyright P. Beyer

A beat­i­ful serie of pho­tos of p. alfredi cou­ple spawn­ing cap­tures by Olivier Perrin

P. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier PerrinP. alfredi couple Copyright Olivier Perrin

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