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Crayfish

Crayfish (also called crawfish or crawdads) are freshwater crustaceans that look like a small lobster. Crayfish feed on plants, frog eggs, insects, and small fish. Crawfish boils and dishes with crayfish in them are very common in Louisiana. Louisiana supplies about 95% of the crayfish harvested in the US.

529 Questions

Why it is the crayfish is classified as a segmented animal?

A crayfish has segments, which are sections of a body that are separated by a crease, so it might be determined as segmented because it has only two so it may be classified but it might not. Worms have many segments.

Are crayfish good to eat?

If you like seafood such as lobster or shrimp, you will likely enjoy crayfish (also called crawfish or crawdad in the US). There are many ways to cook them in dishes or boil them in a flavorful broth and eat them out of their shells.

How many crawfish live in the world?

there are about 1,000,000,000 lobsters in the world ......A.C

Do crawfish make any noise?

Mine does. It makes a type of grinding sound and blues bubbles.

What is the difference between a lobster and a cray fish?

A crab has a round body where a lobsters body looks alot more like a giant shrimp with big pincher's crabs also have pincher's too!

When you boil a crab it becomes distressed and poises its meat.

Also when you boil a lobster it is blue when you put it into the pot/saucepan and pink when it comes out.

How do crawfish mate?

Male crawfish/crawdads produce a packet of sperm that resembles a small raspberry. They approach a female and place the packet at the base of the third peripod using a pair of modified pleopods (in English, that's underneath at the back end, where all the little paddles are). The female curls her abdomen under, and fertilizes the eggs in a special chamber there.

Can pregnant women eat crawfish?

Seafood is a great source of nutrients like omega-3 and protein.

DO NOT eat shark, swordfish,king mackerel or tilefish as these contain the highest levels of methyl mercury.

DO NOT eat fish caught by family or friends, stick to commercial fish.

Avoid RAW fish or under-cooked fish

What do you feed to crayfish?

I have a crayfish and its been alive for 4 years now. We feed it usually cheap goldfish, about a dozen 3xs a year or so. They also like earthworms, raw meat and anything else thats alive or lived at one time. They are bottom feeders so they will eat scraps

What type of anthropoid is a crayfish?

Crustaceans have five pairs of legs and are mostly aquatic. Most of the crustaceans we are familiar with are marine organisms such as shrimp, crabs, and lobsters. A favorite aquatic crustacean is the crayfish.

Crayfish are found on six of the seven continents of the world. They are known by many names. In the U.S. they are known as crawdads or crawfish. In parts of Europe and Australia, they are referred to as yabbies. No matter where you are from or what you call them, crayfish are intriguing. More than half of the more than 500 species occur in North America, with the majority occurring in Kentucky (Mammoth Cave) and Louisiana. Nearly all crayfish live in freshwater but a few can survive in saltwater.

Crayfish look basically like miniature lobsters and their colors can range from sandy yellow, green, white, pink, red, dark brown, and black. The average length for a mature adult is about 3 inches. Some do get larger than this. One of the smallest occurs in the southeast and measures only about 2.5 centimeters. Crayfish have a complex anatomy consisting of many parts. The head has two pairs of antennae and one pair of movable eyes. Attached to the thorax (middle part of the body) is a pair of claws and four pairs of walking legs. The claws are used for cutting, capturing food, attack, and defense against predators or other crayfish. A pinch to a human finger from a large crayfish can actually draw blood. In addition to their claws and walking legs, crayfish have other leg-like appendages. One group of these appendages is called bailers and they help to cycle water over the crayfish' gills. They also have five pairs of swimmerets underneath their abdomen. Crayfish have the ability to regenerate practically any appendage that gets broken off. They can regrow legs, claws,antennae, even eyes if they happen to get snipped off in a fight. They have a thick exoskeleton that provides protection and allows movement, but limits growth. As the crayfish grows it sheds its exoskeleton in a process known as molting. It then grows a new larger exoskeleton. Shortly after a molt, the new exoskeleton is very soft, making the crayfish much more vulnerable to predators. A crayfish may molt many times in its life. The average crayfish only lives about two years.

Crayfish live in a variety of aquatic habitats including swamps, streams, streams, and lakes. Several species live in streams of caves. Many will burrow into banks. Crayfish will often conceal themselves under rocks or logs to hide from predators or to ambush prey. They are most active at night, feeding on snails, algae, insect larvae, worms, tadpoles, and occasionally minnows. They will also eat decaying plant matter and debris. Studies have shown that older crayfish (one year old) tend to most actively feed from dusk to daybreak, while younger ones are more likely to be out on a bright sunny day. Crayfish generally walk along the bottom as they search for food, but if startled, can rapidly swim backwards using rapid flips of their tails.

Because crayfish are fairly short-lived, they have a high-volume reproduction rate. Crayfish will mate in October or November and the eggs will be laid in the following spring. The female will actually attach the eggs to her swimmerets, use her tail as a protective flap, and carry the eggs around with her until they hatch. A female may lay 10 to 800 dark brown eggs that will become translucent, as they get ready to hatch. When the eggs hatch, the newborn crayfish will remain attached to their mother until after their second molt.

Many different predators prey upon crayfish. Various game fish, particularly smallmouth bass, eat crayfish, as do many birds such as grackles, herons, cormorants and ibis. Raccoons, otters, and minks will also catch and eat crayfish. A lot of traditional Cajun dishes have crayfish as a major ingredient so humans also have an appreciation for these delightful crustaceans.

Crayfish are relatively tolerant of pollution with the exception of chemical pollution, which harms their delicate gills. The water must have plenty of oxygen in order for them to survive. They can survive a wide range of temperatures but are generally more active in warmer waters. As long as there is an adequate food source, crayfish will thrive.

So go out and look in your stream or lakefront area. If the habitat is good, there may be crayfish.

What does the thorax of the crayfish do?

First, when it needs to get away, it tucks in the abdomen so it can swim away backwards, really really fast... Also, the abdomen can stir up the dirt so the predator can't see.

Where are swimmerets located on the crayfish?

Swimmerets are located on the abdomen of the Crayfish

How do appendages of frogs differ from crayfish?

For starters, it's crawfish. I'm from the south. That's how we spell/say "crayfish". Anyway, crawfish and lobster are very different! Crawfish do not live in the sea like lobster. Crawfish have a nickname. Which is, the mud bug. They live in muddy water. Possibly swamps. Lobster are ALWAYS bigger. Crawfish have less meat on them. But they tend to be put in spicy spices when doing a crawfish boil or party.

Is crayfish an echinoderm?

No, echinoderms are the sea urchin and starfish family, lobsters are crustaceans.

How do you find captain crawfish on his island?

Captain Crawfish has a ship with the speed and cannons of a Phoenix Warbird. Attacking him with anything less has very, very little chance to succeed. His ship will repair itself as yours does (with the Shipwright).

When you have found and merged the 5 map pieces, and the new island Skullduggery appears, that is where Captain Crawfish is easily found. When you have a Phoenix Warbird, the Shipwright, and the Cannoneer, you are a match for him. He will not actually sink, but sail away when defeated.

(see related question)

*While it seems difficult at the start to imagine a million doubloons, each new, larger ship lets you earn more doubloons faster. Once you have 500,000, you can borrow another 500,000 from the bank and buy the Warbird. (You do not have to pay it back since you will already have the biggest ship.) The rest of the skilled crew are also easily affordable at this point, since the Phoenix Warbird generates a lot of doubloons with its massive cargo space.

Do crawfish lay eggs?

Yes they do!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

they Cary it under it's tail

I have one and it is BLUE

look at that one right there

Well........ here

http://www.youtube.com/watch?v=9cp0ChazpKc

Does a crayfish have a tail?

no, they have other mouth appendages though such as the 1st and 2nd maxillias, right behined the mandiable(jaw). Then the 1st, 2nd, & 3rd maxillpeds come after that. The maxillias and the maxillpeds hold the food in place and they sense taste and touch.

How did crayfish become endangered?

Because they are delicious!!

No seriously here is what I found:

"Crayfish are threatened by habitat destruction caused by dams, water pollution, erosion, siltation, in-stream gravel dredging and, particularly, the introduction of nonnative crayfishes and other exotics. About 65 species of crayfish are endangered, threatened, or listed as species of special concern by the states in which they live, and 48 percent of our native crayfish species are in need of protection. These numbers are best estimates only. The exact status of crayfish endangerment or extinction rates in the United States is largely unknown because very few distribution and population surveys have been completed. "

Here is a link to the site where I found this information:

http://www.ext.vt.edu/pubs/fisheries/420-524/420-524.html

How many babies do crayfish have?

They can have up to 15 babies at a time and can carry 30 in there tummy.


They are red poisonous spiders if you see one in your house kill it straight away.

What do crayfish look like and eat?

Crayfish look like small version of New England type of Lobsters. They live in fresh and brackish waters depending on the species. They will eat anything that is meaty, including worms, leaches, larvae or their specialty, sleeping fish.

Is the cray fish a fish?

Crayfish live in running freshwater - brooks and streams. They cannot tollerate polluted water.

There are different families of cray fish and they are found in South and North America, Madagascar, Western Eurasia, Asia, Australia.

Do crayfish make good pets?

it depends on the size of the fish and the tank. if the fish are to small the may fall prey to the crayfish, this problem can be avoided if you have a large tank but, most people would advise that you don't mix these two types of animals

I agree I caught one without claws and it is doing fine in my tropical tank but it is still small.

A crayfish isn't a good idea if you have small fish in the tank.

How do you raise crayfish?

Crayfish (or crawdads) live in aquariums.They can go extremely long periods of time without eating and they will eat gunk that is stuck to the bottom of the aquarium and live fish. Sometimes they will also eat fish food and shrimp pellets. if there are other fish living in the aquarium, make sure you cut of the crayfish's claws so they cannot catch the fish(it does not hurt them and the claws will grow back when they malt their exoskeleton). temperature and lighting do not really effect the crayfish so you don't have to worry about controling that. Every 3 to 12 months, a crayfish will malt its exoskeleton; leave the old exoskeleton in the aquarium for the crayfish to eat because this will help him grow a healthy one the next time. Crayfish like to have a rock or cave-like structure to shelter in.