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 Lamprologus ornatipinnis (Cameron bay) člana ''Nzivkovic''

Author Topic: Lepidiolamprologus mimicus, nova vrsta iz jezera Tanganjika!  (Read 10496 times)

Offline JZH

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Lepidiolamprologus mimicus, nova vrsta iz jezera Tanganjika!
« on: 04 December, 2007, 16:45:04 »
Text iz casopisa Practical Fish Keeping, NOV 2007:

New Lepidolamprologus is aggressive mimic
Scientists from the USA, Japan and South Africa have described a new species of Lepidiolamprologus from Lake Tanganyika that practices aggressive mimicry.

The new species, named Lepidiolamprologus mimicus, is known from the Zambian (southern) coast of Lake Tanganyika, and is described in a paper in a recent issue of the journal Zootaxa by Robert Schelly, Tetsumi Takahashi, Roger Bills and Michio Hori.

Lepidiolamprologus mimicus can be distinguished from other members of the genus in having by its unique colour pattern of bright yellow fins and a brownish-tan flank with large dark brown spots along it.

Additionally, it is distinguished by the possession of a semsamoid bone in the labial ligament, 2 pores at neurocranial lateral line foramen 0, body depth 23.4–26.2 % SL, head length 31.0–33.7 % SL, interorbital width 17.4–24.5 % HL, 11 dorsal-fin rays, 73–79 longitudinal scales, 10–12 gill rakers on the first arch, 34 vertebrae, and a colour pattern based on three rows of irregular spots.

According to the authors: “Underwater observation during the period and analysis of stomach contents of samples revealed that this species was exclusively piscivorous and mainly preyed on young and sub-adults of cyprichromine cichlids.

“In the littoral region of Kasenga, four species of cyprichromine (Cyprichromis leptosoma, C. zonatus, C. coloratus, and Paracyprichromis brieni) form mixed-species schools composed of various subgroups of age or sex of each species in open water 1–4 m above the rocky substrate...

“Usually L. mimicus n. sp. stalked solitarily near or mingled in the school at a depth of 10 m or more, and attacked mainly young and juveniles of the school. At least 30–40 individual hunts were observed.

“When hunting, adults of L. mimicus n. sp. changed their body coloration markedly from dark-brown to pale beige; their characteristic dark-brown spots disappeared and rows of fine silver dots on the flank faded, but the yellow anal fin and black dotted line at the tip of the dorsal fin remained. This colouration generally looked like that of female cyprichromines and specifically very much resembled that of female Paracyprichromis brieni.

“The degree of resemblance in colouration of L. mimicus n. sp. to its prey during hunting was greater in young and sub-adults than adults...and the predominant prey were young and juveniles of Paracyprichromis brieni, with small Cyprichromis making up the balance. These phenomena indicate both that L. mimicus n. sp. is highly specialized to forage on cyprichromine fishes and also that its colouration, especially during hunting, is a form of aggressive mimicry.”

For more information, see the paper: Schelly, R, T Takahashi, R Bills & M Hori (2007). The first case of aggressive mimicry among lamprologines in a new species of Lepidiolamprologus (Perciformes: Cichlidae) from Lake Tanganyika. Zootaxa 1638, pp. 39–49.

Slike:
http://cichlidae.com/gallery/picture.php?p=2220
http://cichlidae.com/gallery/picture.php?p=2222
http://cichlidae.com/gallery/picture.php?p=2221
Pozdrav, Joca

Offline nedara

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Re: Lepidiolamprologus mimicus, nova vrsta iz jezera Tanganjika!
« Reply #1 on: 04 December, 2007, 17:12:39 »
Još jedan ciklid na spisku C.C.A.  :D

Jel' smem da prevedem ovaj text?

Offline admiral

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Re: Lepidiolamprologus mimicus, nova vrsta iz jezera Tanganjika!
« Reply #2 on: 04 December, 2007, 17:24:34 »
Još jedan ciklid na spisku C.C.A.  :D

Jel' smem da prevedem ovaj text?
A što ne bi mogao!?

Offline JZH

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Re: Lepidiolamprologus mimicus, nova vrsta iz jezera Tanganjika!
« Reply #3 on: 04 December, 2007, 17:30:52 »
Ako imate vremena sto da ne, inace sinonim gore pomenutog ciklida je Lepidiolamprologus sp. "profundicola tanzania", negde moze da se nadje i kao "profundicola gold", a evo i nasih slika!
Pozdrav, Joca

Offline JZH

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Re: Lepidiolamprologus mimicus, nova vrsta iz jezera Tanganjika!
« Reply #4 on: 04 December, 2007, 17:33:29 »
...
Pozdrav, Joca

Offline vladan

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Re: Lepidiolamprologus mimicus, nova vrsta iz jezera Tanganjika!
« Reply #5 on: 04 December, 2007, 17:38:01 »
Joco jesi li ovo tvoje ribe,kad pre?

Offline jeferson

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Re: Lepidiolamprologus mimicus, nova vrsta iz jezera Tanganjika!
« Reply #6 on: 04 December, 2007, 18:19:17 »
Oooo prosiruje se lista zelja.... :D :D :D
Nemogu da pronadjem koliko raste ovaj "masina"?

Offline jeferson

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Re: Lepidiolamprologus mimicus, nova vrsta iz jezera Tanganjika!
« Reply #7 on: 04 December, 2007, 18:33:58 »
Nasao !!! raste u prirodi oko 12 cm!
Mali ali .... :campu: :boxer:

Offline Bojko

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Re: Lepidiolamprologus mimicus, nova vrsta iz jezera Tanganjika!
« Reply #8 on: 04 December, 2007, 18:45:25 »
Super JZH za ovu informaciju. :)
Ali kako je to čudno.Taj ciklid nije bio tek sad pronadjen,on je več dugo prisutan u akvaristiki,negoli tek sad uzet je pod drobnogled ihtiologa.A takvih slučajeva ima puno,tako i u jezeru Malawi,kao i premeštanja vrsta ciklida u nove i nove genuse,a to nas eto prisiljava,da se stalno nešto učimo i pratimo zbivanja u svetu ciklidistike.

Offline Ciklid Gile

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Re: Lepidiolamprologus mimicus, nova vrsta iz jezera Tanganjika!
« Reply #9 on: 04 December, 2007, 19:49:09 »
Daaaa to je onaj Jocin predator...

Potrazite po forumu, daaaaavno se vodila rasprava o profundicola, nkambe, gold nazivima...
Srecan je dan kad sam nasmejan ko kreten.

 

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