[miles]

Hiya

I assume that you're refering to Broadbill Swordfish, scientific name Xiphias gladius. They're also refered to as the Prince of Billfish. Anglers regard them as the ULTIMATE billfish. VERY POWERFUL and has a soft mouth making it extremely difficult for anglers to land. They're nocturnal feeders, which stay VERY deep during the day and rise closer to the surface to feed on squid at night. You do encounter them early morning basking in the sun. I've seen two doing this on our tuna grounds. They're then very easy to approach.

They grow to weights in excess of 600kg's and have been recorded at deeper than 700m below the surface!!!!!!!!!

I am not aware of anybody taking one with a speargun yet. They are also known to be very aggressive and attack the boat the anglers are on. As Rigdvr stated, they do live very deep, so i'd assume that plenty of flotation is needed unless you get a kill shot in.

Thats about all i know about them. I could give you plenty more on fishing tactics we use to catch them, but that starts becoming complicated!!

Regards
miles