Crayfish

No

Yes - I don't know who to, but he was married at a church in Leicester, UK

Spelling. Those are just two different words for the same animal.

yes

Hi! That's a great question, and a lot depends on what it is that you're concerned is being affected. Rusty is a high-metabolism crayfish that hunts during the day (many if not most other crayfish species are nocturnal) and has a fairly "aggressive" nature. In a new territory, there is concern over the rusty's ability to defend against predators (the thinking is that the predators will incrase their eating of the natives instead of tussle with the rusty), the rusty's ability to eat during the day while nocturnal species are in hiding, hence possibly reducing the resources available for the native nocturnal species. Also, the rusty females can hang onto fertilized eggs until conditions are optimal, so she can be transported quite a distance on her own, settle into a new area and start a whole new population from scratch. Now, I don't know yet if other species do this, as well, so it might not be an exclusive trait to rusty.

Interestingly, rusty can also mate with native species, creating hybirds. My question is whether this will eventually be a "good" thing, making a new species that is hardier than the natives were. Since crayfish are scavengers, it's entirely possible that rusty and the hybrids (sounds like a rock band!) will do more to clean up polluted lakes and rivers as they eat algae, aquatic plants (some of which are highly invasive), dead creatures and other detritus. I'm not saying rusty isn't causing problems or hasn't got the potential to cause problems; I'm saying we ought to pay close attention and not allow ourselves too much of a knee-jerk reaction.

Kelly, Director of Black River Action Team

blackrivercleanup@yahoo.com

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It functions using the nervous system that is connected to the brain. The sex cells are most commited although many people doubt this! this term is used for crayfish

hi sp

Yes, you do need a fishing license to catch crawdads or crawfish in California. The state has regulated the amount of harvest that can be taken for this animal.

Use its tail to swim backwards at high velocity.

At night

To allow it to move.

If your crawfish weren't already purged by your supplier you need to submerge them in fresh salted water (a cooler works great) and keep changing the water until the water remains clear. You only need salt the water with the first cooler full. Be sure to pick out any dead crawfish during the process.

Fill a pot big enough to hold the crawfish with water. Bring it to a boil and add your favorite seafood boil or seasoning, salt and a couple halved and squeezed lemons. Now get the water to a rolling boil and add the crawfish. Stir them up a bit, then cover the pot and return to boil for about 5-10 minutes. Stir them again, turn off the fire and allow them to soak for about 10-15 minutes. Strain and dump them out on a table covered in newspaper or such and dig in.

lots of different things eat crawfish like the trout or a bird and depending on the habitat some other things eat them

As with any food, the length of time crawfish etouffee lasts in the refrigerator will depend on how it was handled after cooking and the temperature of the refrigerator. If you don't think you'll use it within a day or two, it might be best to freeze it.

the purpose of walking legs on a crayfish are to help it move around. It mostly uses its tail since it is in water and can easily move with its abdomen muscles

you can feed it algae wafers, leftover corn, feeder goldfish and/or mineos(xs depending on the size of the crawdad), and some will eat little bits of meat. I feed mine xs goldfish and algae wafers. these are the type of food i feed mine in the past.I breed them, i should know.

also edited by Mrs. Pollitt's science family group

they weigh 0.6

the crayfisherman brings the crayfish alive in the factory and puts them in ice or cold water that's what keeps them alive

The main structures of a crayfish under the exoskeleton of the abdomen are the Cephalothorax and the abdomen. The Cephalothorax is made up of the head and thorax and the abdomen has 7 segments.

they hide under rocks so they can hide from predictor's like humans.

It's the grasping claws on its front limbs

10 legs (8 regular and 2 claws)

they dig just like every other thng that gets in your yard they dig just like every other thng that gets in your yard

Boat and equipment sanitation, intensive trapping, and natural enemies (such as bass and sunfish) are ways to rid the water of rusty crayfish. The invertebrate in question (Orconectes rustics) needs its occurrence reported to the local natural resource management agency since no chemical is target-specific to rusty crayfish -- identifiable by black-banded claw tips and rust-spotted backs -- and therefore will affect native non-aggressive, non-invasive species. Preventative measures range from cleaning boats and equipment of aquatic animals, mud, and plants; disposing of unwanted bait; rinsing boats and equipment in high-pressure or hot-tap water; and spacing use of boats and equipment by a five-day drying out period.

no, it cant have chemicals in it or the crab will die