Betta Fish Care  
Go Back   Betta Fish and Betta Fish Care > Betta Fish Care
Check out the eBook Betta Fish Care Made Easy
betta fish
Reply
 
Thread Tools Search this Thread
Old 05-19-2010, 10:40 AM   #1 
Betta Fish Bob
Banned
 
Join Date: Dec 2009
Location: Jacksonville, Fl
Question Late-Breaking News - Betta Fish are Right and Left-Handed!?

Bettas show left-and right-hand preferences !

The Siamese fighting fish, Betta splendens, not only shows right- and left-hand preferences but also has accompanying body asymmetries according to research published in a recent issue of Behavioural Brain Research.





Lead researcher Yuichi Takeuchi aimed to answer three separate questions:
  • In a display of aggression, would betta fish present one side to an opponent in preference to the other side?
  • Are there are differences in appearance between the left and right side of the betta fish?
  • Are differences in betta body shape linked to which side the fish presented?
Bettas prove ideal fish for such experiments, as Takeuchi explains: “Betta splendens show intensive aggressive behavioural patterns” and “remarkably erect the operculum during these social situations”.
In the first phase of the experiment, Takeuchi found that when placed in a mirrored, hexagonal tank just over half of the betta fish showed a left or right-sided preference for displays of aggressions: “lefty” bettas were more likely to present and flare their left gill cover at the mirror image of themselves, while “righty” fish would do the opposite.


In the second stage of the experiment, the researchers measured tiny differences in the body shapes of the fishes, specifically looking at the angle at which the spine met the head. The overwhelming majority of betta fish had a slight left- or right-sided bend in their backbone.


Finally, Takeuchi compared the two sets of results and found that fish that were already identified as lefties had a subtle bend in their spine to the left while righties would most likely bend to the right, suggesting a link between body shape and left/right preference.


Takeuchi admits that the test may lead to more questions than answers, agreeing that “The reason for the relationship between behaviour laterality… and morphological asymmetry in Betta Splendens is not clear”, and that perhaps these results actually mean that it is time to “re-examine the widespread behavioural laterality in fish”.


Published: Dr Claire Inness Wednesday 19 May 2010, 2:21 pm
posted in Practical Fishkeeping at
http://www.practicalfishkeeping.co.uk/content.php?sid=2839

Filed under: Betta splendens fighter fighting fish behaviour




For more great tips on Betta Fish Care check out http://www.GodzillaFish.info





http://elizabethchristopher.wordpres...d-preferences/
Betta Fish Bob is offline   Reply With Quote
Old 05-19-2010, 04:50 PM   #2 
1fish2fish
Member
 
1fish2fish's Avatar
 
Join Date: Sep 2009
Location: Savannah, GA
Very interesting. I was thinking about this a few weeks ago when I noticed my HMPK, Jasper, would move in a way that his right side faced the mirror almost every time.

Do you mind if I post this on my other forum? (If it hasn't been done already).
1fish2fish is offline   Reply With Quote
Old 05-19-2010, 04:54 PM   #3 
Jayy
Member
 
Jayy's Avatar
 
Join Date: Dec 2009
Location: Palm bay, FL
Wow this is very interesting.I'm sorta speachless.
Jayy is offline   Reply With Quote
Old 05-19-2010, 10:11 PM   #4 
CodeRed
Member
 
CodeRed's Avatar
 
Join Date: Jun 2009
Location: USofA
I noticed this once, but he was flaring... I was trying to take a picture of a betta with a fungus of somesort, and I couldn't ever get a picture because... well, he never turned that way o_O


Now you've got me looking at all my bettas :P
CodeRed is offline   Reply With Quote
Old 05-19-2010, 10:12 PM   #5 
kpullen89
Member
 
kpullen89's Avatar
 
Join Date: Feb 2010
Location: VA
Whoa, that is a very interesting article. I will definitely be paying more attention to my flaring bettas!
kpullen89 is offline   Reply With Quote
Old 05-19-2010, 10:32 PM   #6 
tumtum
New Member
 
tumtum's Avatar
 
Join Date: May 2010
Location: Somewhere in Missouri
Haha thats awesome! Im gunna go find out which hand my bettas are! Also RANDOM FACT: All polar bears are lefthanded. Read that off a lions choice bag, i gueess its true.
tumtum is offline   Reply With Quote
Old 05-20-2010, 07:35 AM   #7 
dipsydoodlenoodle
Member
 
dipsydoodlenoodle's Avatar
 
Join Date: Mar 2010
Location: Newcastle upon Tyne, UK
I dont understand the "flares his right/left gill cover to the image"...

Mine always leaves one gill/half of his beard out longer than the other half (right side)
dipsydoodlenoodle is offline   Reply With Quote
Old 05-20-2010, 07:40 AM   #8 
bloo97
Member
 
bloo97's Avatar
 
Join Date: Mar 2010
Location: Georgia, CSA ;)
I think Lucky is a Right-handed fish!
bloo97 is offline   Reply With Quote
Old 05-20-2010, 05:08 PM   #9 
vaygirl
Member
 
vaygirl's Avatar
 
Join Date: Sep 2009
Location: Middlesex County, NJ
I thought this too but then I noticed that Whiskey always swims against filter current. He almost always swims counterclockwise. Of course he's in a hex so the water goes around. But now that I think about it, Tango's pics are all almost all left facing. That's so interesting.
vaygirl is offline   Reply With Quote
Old 05-20-2010, 05:24 PM   #10 
xswornxoffxjello
Member
 
xswornxoffxjello's Avatar
 
Join Date: Mar 2010
Location: Idaho
That is so cool! I've never thought about that before.
I think my crowntail is a lefty just like me. :P
xswornxoffxjello is offline   Reply With Quote
Reply

Tags
betta fish, betta splendens, fighter, fighting fish

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
I Left Betta Fish And Went To Mollies bettaowner101 Betta Fish Care 9 12-16-2009 12:28 PM


All times are GMT -5. The time now is 05:12 PM.


Powered by vBulletin® Version 3.7.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.