Powerful Gordon, mermaids or the Loch Ness Monster???

Arrrg!!!
This me tale that I ye speak...
Of a sights that left me eyes to blink!!
See, the old briny sea is me wife and me home,
And all seven I traveled her watery globe,
In search for lost treasures of ye old Plarail plunder...
Legend: The mighty tale of a Gordon of thunder!!
And o' every day as I caster me net,
I see something keen that I hadn't yet met,
But day after days and weeks unto years,
Not a scarce hair of the Powerful Gordon appeared..
Now this hear me tale takes a metaphorical turn,
Bout the time that the sirens songs that I heard...
And the mermaid that swam in saw that I sea,
It's hard to believe...
Not just one mermaid but 3???