The Blue Shark is probably one of the most easily recognized sharks swimming in our oceans. It is a deep indigo blue from above and a vibrant blue on its sides, changing to white underneath. The large pectoral fins are also easy to spot as they are the same length as the distance between the tip of the snout to the last gill slit. The Blue Shark is a long slender shark, reaching 3.8 meters (13 feet) in length. It is likely the most prolific of the large shark species as it is abundant throughout its range. The teeth on both the lower and upper jaw have triangular cusps with smooth or finely serrated edges.
The blue shark is a viviparous species, nourishing the young in the uterus and giving birth to live pups.
|Scientific Name||Prionace glauca|
|British Record||218lb (N Sutcliffe) Looe, Cornwall, 1959|
|IGFA World Record||528 lbs (Joe Seidel) Montauk, New York, 2001|
|Other Names||verdemar (Spanish), blauwe haai (Dutch), blauer hai (German), peau bleue (French), Squalo azzurro (Italian) yoshikirizame (Japanese)|
In temperate waters the Blue Shark is a wide ranging pelagic species occurring near the surface. In tropical waters the blue shark is more commonly found in deeper waters as it prefers temperatures between 7 and 16 degrees Celsius.
The Sharks diet consists of many types of fish and squid, and they may sometimes eat seals. Although flatfish make up part of the diet Blue Sharks predominantly eat pelagic fishes such as Herring, Cod, Haddock, Pollock, and Mackerel. Blue Sharks are generally caught by using large chunks of dead fish as bait.
Tackle and Methods
A standard 30lb class boat rod and reel is ideal for your first blue. It’s a slight advantage if the rod is equipped with a roller eye, but not necessary.
Regards reels, a 30lb class multiplier needs to hold between 300 and 400 metres of line. A big blue shark can run off around 100 metres of line when it goes deep and far off.
Use 49-strand wire only in 175lb breaking strain for the main section and 275lb wire for the biting end. This is supple and helps minimise the chances of kinking when a shark rolls on the trace.
The best hooks are the Mustad Barbless Tope & Ray hook size 8/0, which is plenty strong enough for blue sharks. If you prefer more strength in the hook, then look to the Mustad O’Shaughnessy size 6/0 or 8/0. There is no need to go bigger, but make sure the points are razor sharp.
Rubby dubby, is a concoction of minced fish, animal feed bran and pilchard oil all smashed up together. This is hung outside the boat in either mesh bags or in plastic tubes riddled with small holes allowing the contents to gradually spill out to form a continuous trail of scent that the sharks locate and follow up luring them in towards your baits.