Hold On; I'm Coming to the Point

I met a talking fish today; he came upon a wave
To board my boat and said to me, “Hello, I’m Salmon Dave.”
I gazed at him and said, “Good sir, you’re welcome on my yacht,
But I’ve seen many salmon sorts, and I could swear you’re not.”
He said, “Indeed, it’s just a silly nickname I’ve acquired,
But that’s a long fish story; if I tell it, I’ll be tired.”
“Okay,” said I, “but do please tell me what you chance to be.”
He answered, “I’m a sole, man,” and I threw him in the sea.