Danio
 

The one with orange stripes.

It was sold to me as Danio kyathit . Is the name correct? Thanks.

Doesn't look like one to me... Yours looks more colourful...

Maybe my fish yet to settle down.

Pic of Danio kyathit from:

http://www.aquanet.de

That '2-lane road' on yours is so distinctive.

Hanor, that's why I confused liao. The disco color is more striking when it had settled down.

Could it be Danio regina? A wild guess.

I was told by Fang Fang the type specimen and original description of Danio kyathit is a spotted specimen, but these striped ones are natural varieties.

Big one on the top photo with yellow/green finage is probably Danio kerri?

I would go along with D.kerri or possibly the one in the second pic could be sp. Hikari blue. ( this is the female to the Hikari yellow male). The spotted ones are definitely D. kyathit which has several different colour morphs.

I second the hikari ID.

Danio kerri[B] :wink:

:sayang:

Here's a pic of Danio kerri "Hikari" for reference:

I am intrigued why Herr Schafer callsl sp. Hikari a kerri?? Although they look very similar, they most certainly are not. I also have pics of Hikari and kerri on our club site www.stroodaquarist.co.uk
The locations of kerri and Hikaria are many K's apart as I am sure that you are aware. DNA sequencing shows that Kerri and Hikaris are quite different species.

Peter,
could you kindly provide the direct links to the pictures of the two "species" here? Thanks!

Biotope brought in Kerri blue some 2 years back.

If I were really computor literate, I would be able to paste over the pictures. Alas I am not, so they can be found on our web site under 'articles' heading Danios and Devarios.

haha Peter, you are just being kind there.

Anyway, I'll hotlink the pictures here for easy reference:







The link to the article can be found here, courtesy of http://www.stroodaquarist.co.uk/

Hi Mad Scientist. Not a question of being kind! I really dont have a clue how to paste them over. I am not much of a photographer either!!! There is also a pic of a kerri in the article. Hope that some of you guys will be so kind and sign our guest book. Thanks

1] Does your D. maetaengensis have complete lateral line?

2] do you have details of the dna study on D. kerri and Hikari danio [especially number of fish use and how many species used for comparision and localities]?

1.Yes.
2. Not the complete details. These were run by Dr David Parichy of the University of Texas and it was he who gave me the info on DNA. They have been working with kerri for some time and last year, obtained the Hikari fish. It is thought that they came from Myanmar via Singapore.

Kerri is quite widespread in northern part of South Thailand, so I wonder whether or not the dna sample on kerri is from many locality or just one or two locality, and whether or not other Danio species ar included for comparisions.

As far as i know, the kerri sample was from just one location. ( he probably had to rely on fishimported by a wholesale outfit in the USA. Other Danios were included and I will go through my files to find the necessary reference ( although I am not sure whether it has been published as yet) I have to hand a diagram of the Danio phylogeny and diversity showing the various relationships of the Danios. I will have to scan it back into my computer and then post it back to you.

Myanmar Danio sp. affin. kerri "Hikari" blues and yellows are sympatric and probably the same fish. IMHO they are different from Danio kerri of peninsular Thailand.

Danio sp. affin. kerri "Hikari" blue:


Danio sp. affin. kerri "Hikari" yellow:


Danio kerri:


Danio kerri typically has pink coloured stripes, powder blue body. Caudal peduncle pigmentation runs into the caudal fin as single color (blue). i.e., main lateral pink stripe stops at peduncle.

Danio sp. affin. kerri typically has golden stripes. Caudal peduncle pigmentation runs into the caudal fin as two colours (light gold and blue). i.e., main lateral gold stripe continues into caudal fin.

it was said somewhere in here that the blue and yellows and sexual dimorphism?

There is absolutely no doubt. Hikari Yellow are all male and Hikari Blue are all female. Easy to breed Yellow /Blue. Impossible Yellow /Yellow or Blue /Blue. DNA sequencing by Uni Texas shows that they are identical ( work unpublished).

Very ejoyable to discuss about D.kerri and Hakari( Yellow/Blue ).As I'm from Myanmar,I would like Danio sp.( Hakari ) to be the new Danio sp.During this discussion,I remenber the article"Island Danio,Brachydanio kerri" written by Hans-Joachim in TFH (August,1989 ).I try to attach the pictures of the title ,male and female of D.kerri.

Tentative character of Richter's Brachydanio kerri refer to Danio albolineatus(tweediei).


My picture is Danio kerri from Ranong southern part of Thaninthayi.

Agree with Chaiwut on Richter's misidentification.
D. kerri illustration from Smith's "FW Fishes of Siam or Thailand":



While Danio sp. affin kerri Hikari of the Tenasserim are different from Thai D. kerri, Tyson Roberts is correct in observing at least two color morphs of Thai D. kerri.

D. kerri from the isthmus (Ranong as of Chaiwut's), normal powder blue:


D. kerri Yellow, more southern, into the peninsula also on the Andaman coast (both sexes yellow).

I agree Plateen and kamphol.I 've rechecked the picture and recognised the mis- presentation of that guys.Is there any different bet male and female of D.kerri.

Only in typical danionin fashion, more colorful in males (during breeding), but not as dimorphic as the Tenasserim Hikaris.

Hi Tin Win,

I would agree that the fish you posted photos of is Danio abolineatus tweediei. I was fooled for years and it is only from discussions on this forum and with Dr Gerhard Ott in Germany who has collected D abolineatus tweediei from Sumatra, that I realised the error of my ways. Also when I got hikari and thought they looked nothing like my kerri despite everyone saying they are almost identical. It was all a bit embarrasing as my fish were on the fishbase site as kerri (now changed)

Bagrus dude got me a copy of HM smiths original paper on Kerri
See thread http://www.petfrd.com/forum/showthread.php?t=17334

And Kamphol sent me this link to Brittans original paper on Danio tweediei (currently deemed a synonym of D abolineatus) http://rmbr.nus.edu.sg/rbz/biblio/27/27brm041-044.pdf

I am pretty sure that the majority of textbook photos of Kerri are actually of tweediei and recommend Pete Cottles kerri photo here:
http://www.danios.info/Contents/species/danio3.asp

The principal difference (given the marking variations) seems to be
that kerri is a much deeper bodied fish, also the blue in kerri extends into the tail. I have breed tweediei and attach a photo here. I think you will agree they look similar to the "kerri" that you posted.

Kamphol

Hi Kamphol,

Do you by any chance have the drawing of Danio Pulcher that appeared in the same article by smith as the kerri one you posted

[QUOTE] paul , the fish on pete cottles site is undoubtedly a male hikari ,not a kerri the reason i say this is the fish in the pix has a blank midbody region whereas in the kerri the lines go from the caudal to the head. please use plateens depiction.is about as acurate as you are likely to find cheers mick

Unfortunately, there is not a drawing in the book in question. Even in this book, published in 1945, there is doubt as to the validity of pulcher.

i love these passionate piscine parleys! i wonder if they have such powwows on the forums in taiwan, hk and japan...

anyone with pics of the glolite danios? would be nice to see a comparison of them versus these lovely danios!

here is the quote which wouldn't post before Paul

Mick,

Ive got some hikari. With both male (yellow) and female (blue), some of them have continuous lines, some of them dont. As with other danios, eg regina as someone else pointed out earlier, the lines dont always tell you that much.

I have to admit that, while your 5 year old show winner looks like a kerri to me, the more recent kerri that you posted here http://www.petfrd.com/forum/attachm...achmentid=19298 look more like hikari to me.

But then if, as others have stated here kerri is more widespread than just koh yao yai, and with the variability you get between individual fish on hikari, they may turn out to be subspecies of the same species, in the same way that tweediei is currently deemed a subspecies of abolineatus. It would be interesting to see if crossing kerri and hikari produce fertile young, but with all the scope for confusion it would be a waste of time trying it unless you had wild stocks of each and know where they came from


[QUOTE=mickthefish]

paul. why talk about crossing such a beautiful species , the last thing we need among all this confusion is hybrids keep the strains pure, i don't wish to cause ill feelings perhaps pete cottle and plateen can get their heads together and conclude this matter.? and my fish are the real kerri not hikari. cheers mick

paul
I do appreciate your presentation

Hey Paul,

You asked for it! Here's is the b&w illustration of D. pulcher from Suvatti's "Fishes of Thailand", Suvatti and Masya were the illustrators to Smith of that era.

Many Many Thanks Kamphol. :worship: :worship: :worship:

I now very much suspect that "pulcher" is blue-redstripe

aka this: http://www.petfrd.com/forum/showthread.php?t=14404


Tin Win - no problem. I'm just glad that kerri and tweediei are now sorted - mainly due to people here

well spotted mick your oservations seem accurate to me ,what does plateen think,lets try and put this to bed so to speak.

Nonn's pic of albo from another falls not that far from Pliew :

http://www.siamensis.org/images/sur...s/s030/albo.jpg

OD stated that pulcher is supposed not to have lateral line, but drawing seemed to show short incomplete line near pectoral fin. Is that incomplete lateral line?

Pulcher, albolineatus, tweediei: for now unless more detail info is avaliable I think it is better to simply think of them as albolineatus for now, and maybe label each population just in case.

Hikari/kerri: pics posted here make me think that kerri seems to be quite variable, especially since yellow color kerri also exists. Again more study is needed and collections need to be made on the whole range of kerri/hikari before any conclusion can be made.

Thanks pulchellus,

It seems quite similar to this: http://www.danios.info/Contents/species/danio19.asp

I think it is reasonable to label these albo variants Danio abolineatus var pulcher/var tweediei until research is concluded.

I have a feeling given the more widespread locations of kerri and its regional differences that we might be best to talk about Danio kerri var hikari for the time being.

well without knowing more, better to call them Da. aff. albolineatus "pulcher", Da. aff. albolineatus "tweediei" and Da. aff. kerri "hikari". by using "var." you would have made a statement about their species (whether albo or kerri) which no one is sure about.

on the other hand, I'm pretty sure Fang would just said "call them Danio sp." :D

Fair comment, I hadnt appreciated the subtle difference between aff and var!

That home fish DIY DNA testing kit is becoming imperative. :woot:

Paul, I assume you are also aware of the difference between cf. and aff.

Further it should be noted that the use of "pulcher" and "tweediei" is purely as a reference label and does not imply any phylogenetic relationship to the pulcher and tweediei as described in the OD.

[bas] just got a shipment of danio kerri, in the same bag were a few devario type fish, does anyone have any ideas as to what these could be ?which devarios live with kerri in the wild.

Any pic?

In Southern Thailand Devario regina is found from the north down to at least Trang Province. Kerri's range in Thailand is within regina's range.