What does it mean when crawfish is blue?

Other scientists have offered various suggestions as to why the dramatic change in color has occurred. Explanations could include diet, the light spectrum, or, since the crawfish are housed in a blue tank, a means of camouflage. “We know that it is not genetic,” Delabbio said.

FAQ

• Can you overcook tuna?

  It's certainly OK to cook ahi tuna all the way through. The only risk to your meal in overcooking is that tuna that's too far done can be quite dry (think canned tuna). Instructions for cooking ahi tuna both to medium-rare and medium are below.

• How many crawfish do you get per acre?

  New or idle crawfish ponds should be stocked with approximately 50 to 60 pounds of crawfish per acre.

• Do Cory catfish die easily?

  Durable and hardy, Cory Catfish lifespan can be long compared to other fish. ... That said, it's not uncommon for some Cory Cats to die shortly after being added to a tank. This could be due to the stress of being transported or shifts in water parameters between home tank water and store display water.

• What fish has the least toxins?

  Overall, fish is good for us and is an important part of a healthy diet. Instead, eat those fish that are lowest in contaminants, such as cod, haddock, tilapia, flounder and trout.

• Can you eat frozen clams that are open before cooking?

  The shells should open; discard any that remain closed. Frozen clams will last up to 3 months at 0 degrees F. Thaw frozen clams in the refrigerator before using, and never refreeze them. ... Clams, unlike mussels, only open when they are cooked all of the way through.

• Do cherry shrimp need an air pump?

  Are we talking about tiny ones like cherry shrimps? If so yes, they need oxygen, but because they are so small in size, their needs are not high and it is possible to keep a small population in a big bowl like a mini pond with the correct amount of plants and being very careful with your water.

24 Related Question Answers Found:

• Where can I find ribbon fish in Florida?

  In Florida waters, they're found more commonly on the East Coast, par-ticularly in major inlets such as St. Johns, St. Augustine and Port Canaveral. Although ribbons occasionally turn up in castnets full of menhaden (pogies), it's tough targeting these fleet-finned hellions with anything but hook and line.

• Can you use supermarket salmon for curing?

  Yes you can, as long as you use high quality salmon (ie don't use vac packed salmon from the supermarket that's been sitting around for days or box packet frozen salmon from Costco or Aldi). Freeze it yourself to -10°F / -23°C for at least a week, or use commercial frozen salmon from a reputable fish monger.

• What happens if my dog eats raw tilapia?

  Fish like tilapia should also be completely deboned before feeding to your dog. Because fish bones are sharp and splinter easily, one swallowed they can puncture the intestines or stomach, causing serious health complications. They also have the ability to become lodged in the throat and cause a choking hazard.

• Why is some tuna packed in oil?

  In my experience, tuna in olive oil tastes way better than tuna in water. The texture of the fish remains more firm when preserved in oil. The reason why tuna in water still exists is because it's perceived healthier than oil (but a good olive oil is actually healthy) and also because it's cheaper.

• Is wahoo a good fish to eat?

  Hawaii Wahoo is an excellent source of healthy, extra lean protein. It is also low in saturated fat and low in sodium. It is rich in niacin, vitamin B6, vitamin B12, phosphorus and selenium. Hawaii Wahoo also provides about 375 mg of omega-3's (DHA and EPA) per 4 ounce serving of fresh fish.

• How long will live oysters keep in the fridge?

  Oyster Shelf Life For most varieties, it's safe to say you should eat them within a week. The colder the temperature, the longer the oyster shelf life. Some people choose to keep their oysters in the fridge for up to two weeks or even longer.

• Are dry oysters bad?

  Inspect the shell for broken or damaged areas. Discard any oysters with shell damage. ... Bad oysters are dry and withered with a cloudy appearance. Contaminated oysters tend to be grey, brown, black or pink in color.

• Why does trout taste fishy?

  The flavor can be very fishy because of the fat content. Like brown trout, lake trout is good to soak in something like milk overnight. The flavor of Lake trout depends on the fish's diet, of course. In the Great Lakes, some lake trout can be quite tasty.

• Is King fish same as king mackerel?

  A variety of the mackerel fish family, which are members of the tuna family, that is most often found in warmer ocean waters, such as from the Carolina coast in the U.S. to Brazil in South America. This species may also be referred to as king mackerels or kings. ...

• What is the best bait to use to catch crawfish?

  The best bait for crawfish is fish such as shiners, herring, sunfish, pogies and gizzard shad. Some fishermen prefer to use cut up salmon heads and other oily fish they can get their hands on. You can get these from the locals easily enough or make them yourself.

• How big is a 5 year old flathead catfish?

  Small catfish feed mainly on small insect larvae but will shift towards crayfish and fish as they get older. Males mature by 3-5 years of age or when they are about 38 cm long while females mature in 4-6 years or by 46 cm in length.

• Do harp seals eat cod?

  They eat many(more than 130 species) different types of fish and invertebrates. Some seals have been found with more than 65 species of fish and 70 species of invertebrates in their stomachs. Their most common type of prey is smaller fish such as capelin, Arctic cod, and polar cod.

• Is a koi fish Japanese or Chinese?

  Often associated with Japan, koi actually originated from Central Asia in China. They were introduced to Japan by Chinese invaders. The koi got their name around 500 B.C, but the fish itself has been around for much longer.

• Is seared tuna safe to eat?

  So, yes, if you are making seared tuna it is safest if it is “sushi-grade,” BUT knowing what you now know about that phrase and how it is completely unregulated, it may also be just as safe to ask a lot of questions before buying any fish to be consumed raw.

• What does fish represent in the Bible?

  The Greek word for fish is 'ichthus. ' In this word, the initial letters of some names and titles of Jesus are hidden: Iesous Christos THeou Uios Soter (Jesus Christ, God's Son, Savior). That was what it was about! The fish was like a password.

• How does smoked mackerel taste?

  Smoked mackerel fillets Right amount of salt with a good smoke taste. The texture is a bit dry, but it's still very good. It has a slightly sweet and smoky flavour. The appearance isn't great and it has a slightly dry, cooked chicken like texture.

• What does it mean when your fish is sitting at the bottom of the tank?

  Sitting on the Bottom: If your fish is spending lots of time at the bottom of the tank, it may be normal behavior. ... If you think this is the case, you should quarantine the fish. A common disease that would cause this behavior is a swim bladder infection, which is a result of a poor diet or water quality.

• Can you eat Pacific herring?

  Herring meat is strong in flavor and soft in texture. It firms up really nicely when pickled. Herring can be grilled, pickled, smoked, broiled or pan fried.

• Do fish prefer deep or shallow?

  Trout are a cold water fish, so they generally like to be where the water is colder. This means that they will hang out in deeper water. The exception is in colder climates, like winter ice fishing, they will hover in shallower water while in the dead summer, will go much deeper to find a cold spot.

• Can you touch a blobfish?

  Can You Touch Them? Blobfish are naturally deep-sea dwellers. ... Unlike cafes that feature mammals, reptiles, or birds, these blobfish will be off-limits for petting.

• Is there fake salmon?

  The new study reveals 82 salmon samples collected from grocery stores and restaurants and 43% were mislabeled. DNA testing confirmed 69% mislabeled farmed Atlantic salmon as being wild caught.

• Can rain water kill fish?

  Many fish kills occur after several days of cloudy weather, early in the morning, or after heavy rain events. ... This quick 'turnover' of the water can quickly decrease the amount of oxygen available to fish, essentially causing them to suffocate.

• Are oysters rich in cholesterol?

  You should avoid liver and offal altogether because they are very rich sources of cholesterol. Some shellfish such as cockles, mussels, oysters, scallops and clams are all low in cholesterol and in saturated fat and you can eat them as often as you like.

• Where is my shrimp hiding?

  If your shrimps are dead or hiding, you may find out by searching your tank plants, moss, or intake valves. Younger shrimp use foliage to hide from predators, and often shrimp will hide when they are ready to molt.