A common shark caught off Islamorada at night time out in 1000′ to 2000′ of water is the cuban night shark. Occasionally we will catch them in the daytime, but deep down on the bottom compared to near the surface like at night. The other day we were out searching for swordfish, but since they weren’t biting, we tried a little shallower, only 1400′ down and sure enough we got a couple of shark bites! The first one was a big 125 lb cuban night shark, and the next drift we caught about a 70 lber. We had a lady angler from Texas who loved to catch anything that pulled, and these were her first night sharks. The florida keys shark fishing is always an option when you want something with big teeth and a big fight!