How can you tell a male fish and a female fish apart?

Simulated · « **on:** 07/04/2008 22:20:14 »

Just wondering ha

Thanks Sim [

]

Simulated · « **Reply #1 on:** 28/04/2008 01:47:20 »

Anybody a fishy person? Ha that's a funny

Simulated · « **Reply #2 on:** 17/05/2008 12:59:47 »

Anyybodyy?

neilep · « **Reply #3 on:** 17/05/2008 13:40:52 »

The female fishes are the ones wearing bras,

The male fishes are the ones getting stressed at the credit card statement !!, oh, and they have hairy gills too !! [

]

neilep · « **Reply #4 on:** 17/05/2008 13:42:06 »

Good question though matey !...I am sure the answer will come soon !!...but remember...the weekend here is ' quiet time '

Simulated · « **Reply #5 on:** 17/05/2008 14:14:01 »

Ha, thanks Neil. Wow. Ha

blakestyger · « **Reply #6 on:** 27/05/2008 21:56:30 »

Many fish posses sexual dimorphism so that's easy - but many, such as Clupids (Herring family), do not so they have to be taken apart in the laboratory.

turnipsock · « **Reply #7 on:** 27/05/2008 23:52:17 »

That is an easy question. The males have one x and one y chromosome and the females have two x chromosomes.

Simulated · « **Reply #8 on:** 28/05/2008 00:10:38 »

Well, without testing that kind of stuff. Can you just look at it?

blakestyger · « **Reply #9 on:** 28/05/2008 09:20:00 »

Interestingly,fish sex chromosomes are not the same as the XX and XY setup that humans have - it's more complicated than that.
In the Swordtails for instance there are three types of sex chromosome: X,Y and Z but each individual has only two of these. That is, there are no XYZ or XXY etc,.
A fish carrying a Z will be female otherwise if it carries a Y it will be male. A Z always trumps a Y and there can be no ZZ, so there are several possibilities:

YY, YX and YZ are female.
XZ, XX and YY are male

Out of interest spiders are quite complex too, males are either XXX or nothing and females are XXXXXX

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How can you tell a male fish and a female fish apart?

Simulated (OP)

How can you tell a male fish and a female fish apart?

Simulated (OP)

How can you tell a male fish and a female fish apart?

Simulated (OP)

How can you tell a male fish and a female fish apart?

neilep

How can you tell a male fish and a female fish apart?

neilep

How can you tell a male fish and a female fish apart?

Simulated (OP)

How can you tell a male fish and a female fish apart?

blakestyger

How can you tell a male fish and a female fish apart?

turnipsock

How can you tell a male fish and a female fish apart?

Simulated (OP)

How can you tell a male fish and a female fish apart?

blakestyger

How can you tell a male fish and a female fish apart?

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