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Sea Creatures

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Kelly T

on 3 December 2014

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Transcript of Sea Creatures

The sea has a large variety of sea creatures. There are many diverse species ranging from octopuses to mollusks. Many sea creatures live in coral reefs for protection and food sources.
The largetooth sawfish is critically endangered. Currently, the largetooth sawfish only lives in Northern Australia.

The largetooth sawfish's fins and rostrum (longtoothed snout) are highly valued.
Vaquitas are a type of porpoise. They mostly eat gulf croaker, bronze striped grunts, and squid. They have a very restricted range. Only 400-600 remain in the wild.
Vaquitas are critically endangered. The biggest threat facing vaquitas is incidental death by fishing gear. Gillnets are also a major threat. About 40-60 vaquitas die in gillnets every year.
Yangtze Finless Porpoise
The Yangtze Finless Porpoise is critically endangered. It is the only porpoise to lack a true dorsal fin hence the name finless porpoise.
Endangered Sea Creatures
By Kelly and Fannia
The sea has many interesting sea creatures. Many of them are endangered. Today, we will be talking about which animals are endangered, how they are endangered, and what we can do to protect them.
Largetooth Sawfish
The largetooth sawfish is the largest species of sawfish. It can grow to be up to 6.5m long, and weigh up to 1300 pounds. Their lifespan is about 80 years.
Overfishing makes it hard for the Yangtze Finless Porpoise to find food. Pollution and ship movement are important factors as well.
Canary Rockfish
Canary Rockfish can reach up to 77cm long and weigh up to10 pounds. Their lifespan can be up to 75 years.
Canary rockfish are fished directly. The canary rockfish is sometimes eaten by humans. The population is rapidly declining because of how many are caught per trip.
A major threat to vaquitas is incidental death by fishing gear. Gillnets are also a large threat killing about 40-60 vaquitas each year.


Threats include overfishing and gillnets. Other major threats are pollution and ship movement.
The blobfish lives off the coast of south easterm Australia and Tasmania. The blobfish doesn’t have a swim bladder, so its stomach got to stay inside its body.
The blobfish doesn’t really have a skeleton, and it doesn’t really have any muscle.

The blobfish is threatened by overfishing, even though it is completely inedible. This is because when fishers fish, they are bringing the blobfish away from it habitat at 9,000 m below sea level.
Beluga Whale
Sei Whale
The Sei Whale is one of the fastest whales. It weighs about 20 tons and can be up to 66 feet long.
Some threats to the beluga whale are oil and gas production, habitat destruction etc. A major concern is noise, because it affects the beluga's echolocation and hearing.
The beluga whale is one of the smallest species of whale. Beluga whales live in the Arctic. There are only about 60, 000 beluga whales left.

Sei whales have been hunted since the 1860's. The killings started become more serious when there were less blue whales and fin whales. Since 1985, the IWC has stopped all commercial whaling. However, every year around 50 sei whales are killed by Japanese fishermen.
Whale Shark
The whale shark has a high value on the market. There is high demand for its meat,oil and fins. Sound and migration disturbances are also problems.
The whale shark is the biggest fish and shark in the world. Their main food is plankton and they are usually very solitary.
Great White Shark
The great white shark is currently vulnerable, meaning that it faces a high risk of extinction. The great white shark can be up to 6 m long and 7,000 pounds heavy.
The great white shark population is declining because of how much people hunt it for it's meat and fins. They are also often caught in mesh protecting beaches.
Hooded Seal
Known for its' "hood", the hooded seal is aggressive and unsocial. Known predators of it are polar bears and killer whales.
The hooded seal is heavily hunted.Primarily for their leather and oil deposits. Baby hooded seals were targeted for their blue back pelt.
Hector's Dolphin
Ganges River Dolphin
The Hector's dolphin is critically endangered and is estimated to have only 55 left in the wild. Threats include seabed mining and coastal development.
The Hector's dolphin is the smallest and rarest marine dolphin. They have a distinct dorsal fin shaped like a Mickey Mouse ear.
The Ganges River Dolphin's main threats are pollution and being hunted for. Toxic chemicals are also often dumped into the river.
The Ganges river dolphin can only live in freshwater. It is blind and uses ultrasonic sounds to hunt for prey.;
Florida Manatee
The Florida Manatee's most important threat is collusion with watercraft. Habitat loss is also very crucial to it's threats.
Hawksbill Turtle
The Hawksbill turtle is critically endangered because of its high demand to made into jewellery and ornaments. Bycatch is also dangerous to them. Its population has declined by 80%
The Dugong's sea grass habitat is decreasing, so it has less food to eat. They are also victims of bycatch.
The Florida manatee is a large marine relative of the elephant. They are herbivores, with a diet consisting of mostly sea grasses and vegetation.
The Dugong is related to the manatee. They are similar in terms of both appearance and behavior, but the dugong's tail is more similar to a whale's.
The Hawksbill turtle is named for it's narrow, pointed beak. They are found in the world's tropical oceans (mostly in coral reefs). Their main food is sea sponges.
So we conclude that there are many endangered sea creatures. In the next slide we will be talking about how we help these creatures and others.
How We Can Help
Here are some ways you can help:
Spread the word to others so they can help and spread the word.
Pursue a career in helping sea creatures.
Donate and fundraise to organizations.
Sign petitions supporting conservation.
Wait, no! Time for a quiz!
Full transcript