Sunday, November 17, 2013
Plankton importance
Plankton are important to our food chain because they are the producers. So if we did not have them, than we would not have any of the bigger fish because they would not have any food. Plankton travel through currents and waves. They need sunlight to survive. An example of a phytoplankton would be a diatom. An example of a zooplankton would be a jellyfish. They are diffent in that the diatom is the producer and the jellyfish is the consumer.
A plankton net
Marine biologist use a plankton net to easily catch the plankton to study. They use this net to get plenty of specimens of these animals.
Sponges
Sponges
Phylum Porifera
They can live anywhere from warm water to very cold water on the ocean floor.
They reproduce both asexually and sexually.
The poors in the sponge take in the water and filter it to get the nutrients in the water, they are eaten by turtles, snails, and other fish.
There are 15,000 different species of sponges.
They can live up to 23000 years.
Larva can live in them until they grow bigger.
Sponges are used also as cleaning tools.
Many animals use sponges as their homes.
Thursday, November 14, 2013
Sunday, November 10, 2013
Oceanographer
Oceanographers take photos of things in the ocean and let everyone see what is down in the ocean. These people are important because they give everyone else a chance to see what is in the ocean that do not have the oppurtunity to do so. They study ice caps. They also can study on things like the coral reefs. They like to take pictures of things that have a lot of importance because they can be payed a lot of money for each picture. They can use robotic things to help get into places that can't be reached also.
Tiger shark
- Scientific name: Galeocerdo cuvierThese sharks are found in deep water but also in shallow water. Lately they have been migrating towards the shore. They like to eat seals and are usually never hunted but sometimes killed by killer whales or humans. Tiger sharks can eat anything which helps them a lot. They also like to swim alone. Tiger sharks are very aggressive and are known as the "garbage can of the sea". Three interesting facts would be that they can be up to 16ft long. Can weigh up to 3,360 lbs. females mate once every three years. These sharks are not endangered because they are at the top of the food chain.
Tiger shark
- Scientific name: Galeocerdo cuvierThese sharks are found in deep water but also in shallow water. Lately they have been migrating towards the shore. They like to eat seals and are usually never hunted but sometimes killed by killer whales or humans. Tiger sharks can eat anything which helps them a lot. They also like to swim alone. Tiger sharks are very aggressive and are known as the "garbage can of the sea". Three interesting facts would be that they can be up to 16ft long. Can weigh up to 3,360 lbs. females mate once every three years. These sharks are not endangered because they are at the top of the food chain.
Friday, November 1, 2013
Career
Marine archeologist
•are able to see things that normal people wouldn't see
•explore deep parts of the ocean
•see ancient artifacts
• help solve mysteries about why ships sank
• good salary
Marine animal
The Great White shark
Reproduction- they reproduce every couple months. They sometimes will even eat their own babies
Predator/prey- killer whales can be the predators and the prey they go after is seals, fish, and other big animals.
Endangered- these sharks are endangered because humans try to kill them for their own benefits
Issues- not enough fish or seals is threatening to them. And so does the pollution in the water.
Interesting facts- • they can be up to 20 ft long
• they can be up to 5000 lb
• they can live up to 30 years
Bob Ballard
The five things that I didn't know is
1. 50% of the US is under water
2. Ocean is 12,000 ft
3. Most of our planet doesn't see the sun
4. Thousands of volcanoes are under the ocean
5. The most volcanoes that erupt are under the ocean
He thinks it's important because we need to know what we are dealing with, because most of our world is covered with it.
The main point was because he wanted to get people educated about the whole ocean and for people to be aware.
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