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Crustaceans

Usually considered as a subphylum, Crustaceans comprise a group of arthropods including crabs, crayfish, lobsters and shrimp. Most crustaceans are aquatic animals, though some are terrestrial, parasitic and barnacles. Crustaceans have a chitinous exoskeleton, segmented body, and paired jointed limbs.

1,209 Questions

What is an ocean krill?

Krill are a type of ocean crustacean that very closely resemble shrimp but are smaller in size. Krill can grow up to five centimeters in length and due to their miniscule size, krill are a food source for fish, whales, squid, penguins and seals. Like fish oil found in fish, krill oil is extracted from krill because of its rich supply of Omega 3 fatty acids.

Though krill can be found in oceans all over the world, the largest commercial fishing of krill takes place in the waters of Japan and Antartica.

Krill oil is a rich source of EPA, DHA and ALA along with one compound (a carotenoid actually) that has been touted for its anti-oxidizing properties. Carotenoids are yellow or red pigments that occur naturally such as the red color of lobster and shrimp --- and the carotenoid is called asthanaxin. Astaxanthin is a carotenoid (a red pigment found in salmon, shrimp, lobster and other marine sources) that is known for its powerful anti-oxidant abilities.

Krill oil contains vitamins A, D and E which are beneficial in maintaining eye function, healthy bones and skin among a host of other health benefits

Can pill bugs see color?

Yes. They have very minimal vision, and cannot see color.

Does crayfish have bilateral symmetry or radial symmetry?

Some mollusks have bilateral symmetry.

Mollusks include gastropods such as snails, bivalves such as oysters, and cephalopods such as squid.

Some bivalves have bilateral symmetry.

What is the large antenna used for on a crustacean?

Most crustaceans can't see well, so they must use their antennae to be their eyes. Their antennae feel around the ocean bed, which helps them maneuver in the water and makes sure they don't bump into anything.

What are crustaceans?

Crustaceans are organisms living under the ocean/sea. Mostly they're shells and snails, or if you've ever seen a whale, crustaceans are the weird white or green things that live on the skin of the whale. They don't hurt the whale, the just live on it.

Do krill fish have gills?

Yes, all fish have gills.But, mammals do not have gills because they come-up to breath air. By Emily Jordyn weedon

Does a crustaceans have a backbone?

Crustaceans are invertebrates - they have an exoskeleton but no internal bones.

Where is a woodlouse found?

in damp dark places eg. under rocks and big stones

What group of animals includes the sub groups insects crustaceans and arachnids?

Formally, The order Hemiptera is often called the "true bugs" and includes over 50000 different species of insects. Informally speaking, "bug" is a general term that describes any number of arthropods, including spiders and insects without pertaining to specific group.

What does crustacean?

If you are doing the telegraph crossword the answer is lobster

What are cockles and what are made of?

I belive cockles are like mussles but sheels.I dont know what they are made of,sorry

What is a crustaceans life cycle?

The answer below I believe is not valid if you are looking for the life cycle of the crustacean.

It's their life on how they live so from when they start to breath to the point when they stop breathing.

What is the shell called in crustaceans?

Crab's that live on land and in water do not call their eggs anything special. Though pubic crabs call their eggs nits.

98 percent of crayfish around the world is found in what state?

he is a site that may help you found what you are looking for http://en.wikipedia.org/wiki/Crayfish

What is krill oil made from?

Krill.

Krill are a type of ocean crustacean that very closely resemble shrimp but are smaller in size. Krill can grow up to five centimeters in length and due to their miniscule size, krill are a food source for fish, whales, squid, penguins and seals. Like fish oil found in fish, krill oil is extracted from krill because of its rich supply of Omega 3 fatty acids.

Do prawns have legs?

Most fish do. I would say that all fish do, but it seems on Earth there is always an exception because there are so many different types of fish in the world.

Do crayfish breed?

Yes they do.

And mating occurs when the female mud crab is in the soft-bodied condition following moulting. Female mud crabs in Australian populations migrate offshore to spawn and are rarely seen. 2 to 8 million eggs are produced in each spawning. Female crabs incubate the eggs for 2 to 4 weeks under their abdominal flap. For more information on the cycle of the Mudcrab

What is the best crayfish bait?

Most people fish for bass with artificial lures. Some of the best include Plastic Worms, spinnerbaits, and crankbaits. You can also use live bait like live shiner, or worms work well to.

Right now, the hottest bait around is Zoom bait company's Ultravibe Speedcraw. Texas or Carolina rigged, it's a real killer for bass.

How do cray fishermen keep there crayfish alive?

Crayfish have eyes adapted to see in the silt water.They have claws used to protect themselves as well as obtain food. The large pincers are used to grab and hold prey, and they help ward off predators. Antennae are adapted to help the animal sense movement the water, and also a chemical change. Chemical change could indicate many things, like dead fish or even potential

Is a plankton a crustacean?

Plankton are not crustaceans, but are microscopic organisms. Crustaceans such as crayfish, shrimp, lobsters, crabs and krill feed on plankton.

Are krill first level consumers?

I think that a goldfish is a first level consumer… or a clown fish, 'cause they eat plants and bottom ocean life and stuff….

What is the study of crustaceans?

Malacostracology (mala-"soft", costraca-"shell", -ology - "study of") is the formal branch of Zoology and Marine Science relating to the study of animals anatomically united by a bauplan, comprising of 20 body segments divided into head, thorax and abdomen regions, also known as "crustaceans". The focus of Malacostracology includes crab, lobster, shrimp, krill, crayfish, scuds, mantis shrimp, and false crustaceans - such as hermit crab, king crab, horseshoe crab and porcelain crab. The term "Malacostraca" refers to the same class of animals under biological taxonomy.

Are krill endangered?

no, there are thousand's and they breed very quickly.