Is this true? General fish question

[fishyfeet]

see, i told you, di

 

[OrkyBetta]

My boss told me the LFS told her that eat fishes stomach size could be judged by the size of the fish's eye. (same size)

Is that true ??

Our Puffer, Martha has eyes a little smaller than the size of a UK twenty pence piece, but can eat two jumbo prawns the size of her head in one sitting.

Our Chacachaca has eyes the size of a pinhead, but swallows food half the length of his body.

Need I go on?

I've heard humans have stomachs about the size of our fist, but have you seen how much food a person can down?

The stomach expands when anything eats, and food in liquid form or semi solid form never takes up as much room.

 

[SirMinion]

The stomach expands when anything eats, and food in liquid form or semi solid form never takes up as much room.

Very true, and puffers have unbelievably elastic stomachs, allowing them to do this!:

 

[OrkyBetta]

Beautiful picture, sir minion. I'm just so glad I'm not a puffer, I eat so much as it is

 

[Nospherith]

It is (technicaly or otherwise) a fish...

Yeah, I was wrong. They are Cartilaginous Fish. In other words, fish are vertebrates, in that they have a backbone and spinal column. Sharks don't have bones, it's skeleton is of cartilage. But, sharks do indeed have a spinal column, so... Sharks also have "eyelids" which other fish do not and they can't breath while motionless, unlike other fish.

Nice fish, SirMinion. That's a regular aquatic basketball you got there. Maybe she'll puff again if the lights aren't turned on right on time for her snack?

 

[Katchan]

Sharks also have "eyelids" which other fish do not and they can't breath while motionless, unlike other fish.

The theory that sharks cant breath when motionless has been disproved again and again over the last 2 decades. There are many types of sharks than remain motionless for long periods on the bottom, including the grey nurse, a type not normally would not be considard a bottom dweller/rester! So maybe some cant rest but there ARE many that can.

Katchan

PS sorry for the slight thread hijack but since we were disproving old or incorrect notions