LOGIN

RSS Facebook Twitter YouTube
GLOSSARY       

SEARCHGLOSSARY

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

PROFILESEARCH

Avatar

Please consider registering
guest

sp_LogInOut Log In sp_Registration Register

Register | Lost password?
Advanced Search

— Forum Scope —




— Match —





— Forum Options —





 

Minimum search word length is 4 characters - maximum search word length is 84 characters

sp_Feed Topic RSS sp_TopicIcon
B. maculatus question
November 1, 2012
3:32 pm
Avatar
Rüdiger
Brunswick / Germany
Veteran
Forum Posts: 349
Member Since:
May 2, 2012
sp_UserOfflineSmall Offline

Good day to all.

I am going pregnant with this question for quite a while now and no research brought an answer so far. About a year back I saved a group of 6 Boraras maculatus from the sewer. I have first kept them in a 12 l tank by themselves. When I set up the dwarf puffer tank I chucked them in there and bought another 6 to have a little shoal running. Now the first 6 all look like the ones pictured below.

 

IMG-0001.jpgImage Enlarger

IMG-0002.jpgImage Enlarger
IMG-0003.jpgImage Enlarger

If you must insist on living in a box ...... at least do your thinking outside.
November 1, 2012
3:39 pm
Avatar
Rüdiger
Brunswick / Germany
Veteran
Forum Posts: 349
Member Since:
May 2, 2012
sp_UserOfflineSmall Offline

As you can see, all have a single black spot at the base of the anal.

From the second batch though all have 2 spots, in 2 specimen merged into one oblong spot. As well, the central lateral spot is fairly round in the first batch whereas in the second batch it is sort of "bleeding out" at the bottom, anal and dorsal have a lot less black and you can see a distinct difference in color saturation between the two. (see pics below).

My question now is: Is it a sub-species, a local variety, just a different color phase or something different altogether? 

Regards

R.

 

IMG-0004.jpgImage Enlarger

IMG-0005.jpgImage Enlarger

If you must insist on living in a box ...... at least do your thinking outside.
November 2, 2012
8:41 am
Avatar
Matt
Málaga, Spain
Admin
Forum Posts: 8239
Member Since:
June 13, 2011
sp_UserOfflineSmall Offline

Hi Rudi we have pics of fish like the one in the top pic there, where the anal spot is extended vertically, in the profile but never seen one with two distinct spots as in your second pic.

I'd guess it's an aberrant specimen or regional variant rather than a separate species?

Cake or death?
November 2, 2012
10:44 am
Avatar
BigTom
Edinburgh
Veteran
Forum Posts: 311
Member Since:
July 17, 2011
sp_UserOfflineSmall Offline

Mine have a very small second anal spot, but very well defined markings otherwise with no 'bleeding'.

 

Will try and dig out some photos when I get a mo.

November 2, 2012
12:52 pm
Avatar
BigTom
Edinburgh
Veteran
Forum Posts: 311
Member Since:
July 17, 2011
sp_UserOfflineSmall Offline

Heh, Ok so this is a little odd.

Dug out some old shots of my maculatus shortly after acquiring them (May 2011)... young and stressed so not very well coloured, but clearly with single anal spots -

Image Enlarger

 

Image Enlarger

 

 

 

 

 

 

 

 

 

 

 

But now (November 2012), the same individuals have a mixture... some have a single anal spot as before, some have a second anal spot (either on one or both sides) and one male with a full bar instead of spot (but only on one side) -

Image Enlarger

 

 

Image Enlarger

 

 

 

 

Image Enlarger

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

So it seems to me like the markings break down as the fish get into 'old age'. Just to confuse matters Laugh

November 2, 2012
2:09 pm
Avatar
Rüdiger
Brunswick / Germany
Veteran
Forum Posts: 349
Member Since:
May 2, 2012
sp_UserOfflineSmall Offline

Hi there.

Matt, I think the aberrant specimen we don't have to take into consideration as it would be a heck of a coincidence to have 6 of them in one batch of 6 (taken from a tank with about 200+ specimen) 

Yeah Tom, it gets even more confusing. My second batch, the double spotted ones, were extremely small when I bought them. Bloodworms with fat heads really. But one could already see the two anal spots. Back then I though they would, with age, merge into one.

So now we have the one spotted variety, the one spotted developing into two spotted and the two spotted from birth.

And some people say that fish keeping was boring. Laugh

Regards

R.

If you must insist on living in a box ...... at least do your thinking outside.
Forum Timezone: Europe/Paris

Most Users Ever Online: 246

Currently Online:
1 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Devices in use: Phone (1)

Top Posters:

Stefan: 1567

Plaamoo: 1253

mikev: 1134

Malti: 1099

Mark Duffill: 1012

Member Stats:

Guest Posters: 0

Members: 30285

Moderators: 0

Admins: 2

Forum Stats:

Groups: 4

Forums: 10

Topics: 4595

Posts: 36615

Newest Members: bhisma wildan, costeacristianalex, knebeshwar, tdog44632, carl38vaughn

Administrators: dunc: 1323, Matt: 8239