Shark Photos
Great White
Descriptive Features -
Big, with a dull gray back and a white
underside. Spindle shaped body. Triangularly shaped teeth with serrations on the edges.
Large caudal fin with both the upper lobe and lower lobe being approximately the same in
size. Very strong caudal keel. Long conical snout. Long gill slits.
Habitat - Can be found in
all coastal temperate waters and has been known to occasionally make dives into the deep
water of the open oceans. Can be found in waters as shallow as 3 feet deep but has also
been caught on long line at depths as deep as 1280 meters.
Feeding Habits - Tends to cruise at the sea bottom while keeping an eye out
for shapes on the surface. If it sees a shape resembling that of a seal, it will make a
full speed charge at that shape. Then it will ram it and give it a first bite all in one
movement, stunning and injuring the prey. It will then Disappear and allow it's prey to
bleed to death. When it is certain that the prey is dead, then it will begin to feed.
Food - As juveniles, great whites feed on fish. However, when full grown, their main
source of food becomes Marine mammals such as: whales seals and dolphins. They have also
been known to feed on large tuna fish.
Reproduction - Ovoviviparous with oophagy in the mother's uterus.
Size - The largest one ever caught and measured was 21 feet long. However, there have
been reports of some greats whites being 36 feet long but documentation is unavailable on
such sightings.
Tiger Shark
DESCRIPTIVE FEATURES - Short,
blunt snout Thin and pointed caudal fin. Has dark vertical stripes on it's back.
HABITAT - Can be found in coastal, pelagic,
temperate and tropical seas. Tends to hang around piers, ports, atolls
and estuaries.
FEEDING HABITS -
Like the bull shark, the tiger shark does not specialize in feeding upon any specific sea
creature.
If it can bite it, it can eat it. There are also reports of people taking license plates,
dogs, dead sheep and medieval armor out of the shark's stomach.
FOOD - If
it can bite it, it can eat it.
REPRODUCTION - Ovoviviparous (the only one of
the CARCHARHINIDAE family that has this ability).
SIZE - The
largest known authenticated specimen of a tiger shark, measuring 6.23 meters (20 feet 9
inches) and weighing 792 kg (1,760 pounds), was caught off Taboga, Gulf of Panama, in
1922. Common size is from 10-20 feet.
Bull Shark
ORDER:
CARCHARHINIFORMES.
SCIENTIFIC NAME: CARCHARHINUS
LEUCAS.
DISCRIPTIVE FEATURES: Blunt, short snout
with small eyes. Back is colored grey while the underside is a dirty white.
Stocky bodies with small gill slits.
HABITAT: Can be found in both coastal and
insular waters as well as fresh water rivers and lakes.The bull sharks tolerance of a wide
range of salinities in warm continental waters does not, however, enable it to maintain
populations worldwide. Among the many islands of the whole central pacific, it has been
reported only once.It seems probable that the bull shark is primarily restricted to warm
continental coasts and associated inland waters.Quite possibly it has a brackish or
freshwater ecological requirement, as indicated by the frequent presence of near-term
famales and juveniles in such waters.
FEEDING HABITS: Actively seeks out it's
prey.
FOOD: Anything it wants to eat, it does not
specialize in feeding upon any specific kind of sea creature.
REPRODUCTION: Viviparous.
SIZE: Can grow to a length of about 3.5
meters.
Hammerhead
ORDER:
CARCHARHINIFORMES.
SCIENTIFIC NAME: SPHYRNA
MOKARRAN.
DISCRIPTIVE FEATURES: Posesses a flat
hydrofoil head. Also has a long dorsal fin. Unlike the scalloped Hammerhead shark, the
great hammerhead only has 2 bumps on it's snout.
HABITAT: Resides in both coastal and pelagic
waters and is semi-pelagic. It's a nomadic shark and is also migratory.Has been known to
enter water as shallow as 1 meter.
FEEDING HABITS: It swims along the sea floor
swinging it's head from side to side in order to detect it's prey.
FOOD: It's main source of food is mainly
comprimised of rays and skates, which it spposedly stuns by beating them with it's head
before eating them.
REPRODUCTION: Viviparous.The yolk-sac
placenta being inextricably interdigitated with the uterine wall while in some (but not in
all) species the umbilical cord possesses numerous finger-like projections believed to
have a respiratory function.
SIZE: Can attain a maximum length of
anywhere between 5.5 to 6.1 meters (from 10 to over 20 feet).
Sand Tiger
Order
- Lamniformes
Descriptive Features- Adult sandtiger sharks have
hunch backs, narrow snouts, golden-brown sheen to the skin (some have large reddish or
brownish spots scattered on their bodies). They also have short gill openings.
Habitat- Awl-shaped, dagger-like pointed teeth
(narrow double-edged teeth without serrations--excellent for grasping and eating prey
whole), ferocious appearance (toothy grin), fairly large eyes. Sandtiger sharks often feed
cooperatively, which makes them socially unique among sharks. They are often found in
groups of a few dozen, hovering in caves or near shipwrecks. This shark has an interesting
method of buyoancy control -- it has been seen swallowing air at the surface and holding
it in its stomach to maintain neutral buyoancy. Sandtiger sharks are a migratory species,
common in inshore waters during the summer and moving southward or to deeper waters in
winter.
Food- Bony fish, small sharks and rays, cephalopods
and large crustaceans; feed voraciously on small fish at night
Reproduction- Females usually stay in localized
areas, while males migrate more. They are ovoviviparous. This species of shark is unique
because of the intra-uterine cannibalism that occurs. Only one embryo per uterus survives.
Size at birth is more than 3 feet. These young are born with sharp, functional teeth.
Lifespan is unknown.
Size- The longest recorded Sandtiger shark was 3.18
meters (about 11feet). Sandtiger sharks usually range from 2-3 meters (4-8 feet), however
females are often a bit larger than males.
Mako Shark
Order -
Lamniformes
Scientific Name - Isurus oxyrinchus
Features -
Has a conical snout, and long gill slits. It is pelagic but occasionally goes inshore. It
is dark gray-blue on top and white on its belly. It is also known as the bonito and the
blue pointer.
Habitat - Short-finned Makos are found world-wide in
temperate and tropical seas. Makos range from the surface to relatively deep waters. They
are pelagic oceanic swimmers, but are occasionally found inshore. In warm, tropical
oceans, they swim deep below the surface as they prefer cool water (about 65�F
(18.5�C)). They are found off the island of Tahiti at depths of 650-1,300 feet (200-400
m).
Feeding Habits - Makos eat schooling fish, including
tuna, herring, mackerel, swordfish, and porpoise. They are opportunistic feeders, eating
just about anything.
Reproduction - Makos are ovoviviparous. The pups are
cannibalistic in the womb. On average, 10 -12 pups are born in each litter and are about 2
feet (0.6 m) long at birth..
Size - Mako sharks average 5 - 8 feet long but have
been known to reach up to 13 feet long, weighing up to 1,500 pounds.
Whale Shark
Order -
Orectolobiformes
Scientific Name - Rhincodon
typus
Descriptive Features -
It is NOT a whale. It has a huge mouth which can be up to 4 feet (1.4 m) wide. Its mouth
is at the very front of its head (not on the underside of the head like in most sharks).
It has a wide, flat head, a rounded snout, small eyes, very large gill slits, 2 dorsal
fins (on its back) and 2 pectoral fins (on its sides). Its tail has a top fin much larger
than the lower fin. It has distinctive light-yellow markings (random stripes and dots) on
its very thick dark gray skin. Its skin is up to 4 inches (10 cm) thick.
Habitat - Whale sharks
live in warm water (near the equator) both along the coast and in the open seas. They
spend most of their time near the surface.
Feeding Habits - The
whale shark is a filter feeder that sieves small animals from the water. As it swims with
its mouth open, it sucks masses of water filled with prey into its mouth and through
spongy tissue between its gill arches. After closing its mouth, the shark uses gills
rakers that filter the nourishment from the water. Anything that doesn't pass through the
gills is eaten. Gill rakers are bristly structures (the thousands of bristles are about 4
inches or 10 cm long) in the shark's mouth that trap the small organisms which the shark
then swallows. The water is expelled through the sharks 5 pairs of gill slits. The prey
includes plankton, krill, small fish, and squid. The shark can process over 1500 gallons
(6000 liters) of water each hour.
Reproduction - The
Whale shark was long thought to be oviparous (an egg 14 inches (36 cm) long was found in
the Gulf of Mexico in 1953; this would be the largest egg in the world). Recently,
pregnant females have been found containing hundreds of pups, so, Whale sharks are
viviparous, giving birth to live young.
Size - The whale shark
is up to 46 feet (14 m), weighing up to 15 tons. The average size is 25 feet (7.6 m) long
It is the largest fish in the world. Females are larger than males (like most sharks).
Blue Shark
ORDER -
CARCHARHINIFORMES.
SCIENTIFIC NAME - PRIONACE
GLAUCA.
DISCRIPTIVE FEATURES - Long and slender body. Blue color on
back fading to a lighter
blue on the sides, then into white on the underside. Long snout. Long narrow pectoral
fins.
HABITAT - All the open oceans.
FEEDING HABITS - Roams the seas in search of
prey.
REPRODUCTION - Viviparous.
SIZE - Can attain a maximum length of 3.8
meters.
White Tip
Order -
Carcharhiniformes
Scientific Name - Triaenodon obesus
Descriptive
Features - Body
moderately slender with a very broad and flattened head. Broadly rounded snout. Short
labial furrows. First dorsal fin is well behind the free rear ends of the pectoral fins.
Second dorsal fin large but still smaller than first one. Pectoral fins fairly broad and
triangular. No interdorsal ridge. No lateral keels on caudal peduncle.
Habitat - Common to the
shallows of the Pacific and Indian oceans
Feeding Habits - Night
hunters in general, whitetip reef sharks prefer to stalk coral reefs for crab, lobster and
bony fishes; and generally don't approach humans.
Reproduction - Viviparous.
Size - The Whitetip
reef shark can grow up to 6 feet in length.
Silky Shark
Order - CARCHARHINIFORMES.
Scientific Name - CARCHARHINUS FALCIFORMIS.
Descriptive Features - Slender with the "classic" requiem
shark appearance. Extremely elongated rear margin on second dorsal fin.
Habitat - Resides in both oceanic and coastal waters.
Feeding Habits - Actively pursues it's prey.
Reproduction - Viviparous.
Size - Can grow to maximum length of 3.3 meters.
Thresher Shark
Order -
Lamniformes
Scientific Name - Alopias
vulpinus
Descriptive Features - threshers
have a countershaded body, dark blue above and white underneath. It has small jaws, but
can use its tail to corral and even kill fish. The first dorsal fin is much, much bigger
than the second; the pectoral fins are curved. Like other mackerel sharks, it has an anal
fin, 5 gill slits, 2 dorsal fins, no fin spines, mouth behind the eyes, and no nictitating
eyelids.
Habitat - The Common
Thresher Shark swims from the surface to a depth of about 1,150 feet (350 m). It lives in
tropical and temperate waters, including the eastern and western Atlantic, the central
Pacific, and the Indo-west pacific.
Feeding Habits - The
Thresher eats squid and fish, corraling them with its elongated tail and catching them
with its very sharp teeth.
Reproduction - Mature
females (at least 10 feet (3 m) long have litters of 4 to 6 pups, bearing live young.
Size - The Common
Thresher shark ranges from 16.5 to 20 ft (5 to 6 m) long.
Blacktip
ORDER -
CARCHARHINIFORMES.
SCIENTIFIC NAME - CARCHARHINUS MELANOPTERUS.
DISCRIPTIVE FEATURES - Has balck tips on
it's fins. On the first dorsal fin, it has a small white band under the black tip. Short
caudal fin. Faint white band on it's sides.
HABITAT - Found in the east Medeterranean in
water as shallow as 30 centimeters.
FEEDING HABITS - Feeds in small groups or
alone.
FOOD - Feeds mainly on bony fish.
REPRODUCTION - Viviparous.
SIZE - Can reach a length
no longer than 2 meters.
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