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Deepseawaters
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Sea Sharks
Deep Sea Sharks
Sharks
are a valuable part of marine ecosystems. Most sharks are
vulnerable to overfishing because they are long-lived, take
many years to mature, and only have a few young at a time.
Recovery from overfishing can take years or decades for many
shark species.
About
350 species of sharks occur worldwide. Sharks
are primarily oceanic and are widespread in tropical to temperate
zones. Sharks vary greatly in size. The largest
species, also the largest of all fishes, is the plankton eating
giant the Whale Shark (Rhincodon typus).
The largest measured specimen was 12.65 m long and weighed
21.5 tonnes, but the Whale Shark probably attains 18 metres.
Some of the deepwater shark species attain only about 25cm.
Types of Sharks
Atlantic Sharpnose Shark
Angel Shark
Basking Shark
Black Dogfish Shark
Blue Shark
Brown Smoothhound
Chain Catshark
Dusky Shark
Dwarf Gulper Shark
False Cat Shark
Frill Shark
Gray Smoothhound Shark
Great Hammerhead Shark
Great White Shark
Goblin Shark
Lemon Shark
Leopard Shark
Megamouth Shark
Nurse Shark
Porbeagle Shark
Portuguese Shark
Rough Sagre Shark
Sand Tiger Shark
Shortfin Mako Shark
Shovelnose Guitarfish
Smooth Dogfish Shark
Spiny Dogfish Shark
Thresher Shark
Tiger Shark
Whale Shark
Whitetip Reef Shark
Wobbegong Shark
Zebra Shark
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