Fish adrenal glands

Hello all. Please can you help settle an argument for me?

After 3 or 4 pints with my other half, the conversation got onto fish, and I maintained that fish have adrenal glands, on the basis that they seem to live on fear, have a strong fight or flight (mostly flight) instinct and therefore, must have adrenalin in their systems, and that adrenalin must come from adrenal glands. He insists they don?t have these glands. Trouble is, I need pictoral evidence of a fish?s adrenal glands. I?ve Googled it but had no luck with a specific enough diagram.

Can anyone help?

Ooh ooh ooh ooh!!

Is the recipe online??

Dude, that wasn't funny - I'm at work.

Well maybe you could have warned me.

Anyway, complaint's in the post.

You sure about that?

And anyway, if you Google 'fish adrenal glands' the first link that comes up is something pretentious about cortisol production, something I didn't see as evidence so much because it doesn't specifically mention what I was looking for.

Okay, okay...

I'm looking, more specifically, for a diagram. But to be honest I think I'll ask elsewhere.

AFAIK, most fish don't have adrenal glands the way you think of adrenal glands in mammals. They have interrenal cells and tissue that perform a similar function. They do indeed release adrenaline under stress the way human adrenal glands do. IMO, you're simply lucky to be right, as your reasoning is pretty faulty.

What, and end up with God only knows what else up on my work computer screen?

No thanks!

Anyway, I've already tried Google.

Well, paint me pink and call me John...

Okay, thanks But you do realise I'm down a fiver, right?