Why is crayfish blue?

Blue lobsters may be extremely rare, but apparently blue crayfish are not that uncommon. A genetic flaw causes overproduction of a protein that combines with a carotenoid molecule called astaxanthin giving the blue colour.

FAQ

• Can you heat up ready to eat smoked mackerel?

  Delicious and nutritious, smoked mackerel comes ready to eat, with only the minimum of cooking required if desired. ... Amazingly versatile all-rounders, you can bake, grill, microwave, shallow fry or steam smoked mackerel fillets.

• Do ghost shrimp swim a lot?

  Ghost shrimps swim to the top mainly due to the imbalance in water parameters. Some other factors can also be responsible for this behavior. Toxicity in the water is mainly why the ghost shrimps swim to the top.

• Can you eat a fish with scales?

  Fish skin has been eaten safely throughout history. It's even a popular snack in many countries and cultures. As long as fish have been properly cleaned and the outer scales fully removed, the skin is typically safe to eat.

• What does it mean shrimp 16 20?

  A shrimp's size is measured by the number of individual shrimp it takes to make up a pound. A label of 16/20 means that there are between 16 and 20 of these shrimp in a pound. Sometimes you'll see a letter U as well, like U10, which means fewer than 10 of those shrimp make up a pound.

• What does shrimp eat in a food chain?

  Adult shrimps are scavengers. They feed on dead crabs, clams, snails and fish, and worms. In this role, they help rid the ecosystem of dead decaying matter. Shrimps have been observed to eat live worms or cannibalize other shrimps.

17 Related Question Answers Found:

• Is pink salmon bad?

  All types of canned salmon (pink, chum, coho and red sockeye) are healthy choices. Choose canned salmon with the bones so that you get the most calcium. Look for the lower sodium versions.

• Is crawfish the same as shrimp?

  As we can see, shrimp and crayfish differ slightly in size, habitat, and appearance. Prawns resemble shrimp, and lobsters resemble crayfish. Nutritionally, shrimp and crayfish are virtually the same.

• Does lemon juice kill bacteria in fish?

  Does lemon juice kill parasites in raw fish? You won't be able to see or smell the parasites – they're too small! You also won't be able to 'kill' any germs by squeezing lime or lemon juice over the fish. The only sure way to rid the fish of germs is to cook it properly.

• How do you sanitize fish before cooking?

  How to Wash Fishes Properly Before Cooking

  1. Pick your fishes. ...
  2. Do the gutting process, check and remove the intestine if present (it is not good for you).
  3. Rinse well in water water and wash well 3 times or more until the water seems clear.
  4. Then add a spoon of turmeric powder and salt to the fishes.

• Do clownfish like high flow?

  Clowns aren't big fans of high flow but they'll often just avoid high flow areas in the tank.

• How long does it take for an oyster to grow?

  18 to 24 months It takes 18 to 24 months for oysters to become adults or grow to market size, approximately 3 inches. Since growers only have a finite amount of land, they also only have a finite amount of oysters they can grow on their farm.

• Why are frozen prawns crunchy?

  It reveals that a pH9 alkaline water is the secret behind crunchy shrimp, and a light massage while marinating pretty much does the trick. The PH9 clue intrigues me. ... Sea water is pH8 and the reason why live/raw shrimps have firm and crunchy flesh. I also learned that baking soda and egg white are both pH8.

• How do you get rid of fishy taste in catfish?

  Another way to rid your fillets of the fishy smell before cooking is to soak them in a mix of water, baking soda and salt. The mixture is made from a quart of water, 2 Tbsp baking soda and 1 Tbsp of salt. Soak your fish in this mixture for an hour before cooking is all that's needed.

• How long will manila clams keep?

  CLAMS - FRESH, LIVE Store live, raw clams in the refrigerator in an open container and cover with damp cloths or paper towels. How long do raw clams last in the fridge? After clams are purchased, they may be refrigerated for 1 to 2 days. Raw clams must be kept alive before cooking.

• Are canned oysters from China safe?

  A: Canned oysters are either fresh or smoked—either way they are cooked and edible right out of the can.

• Can you eat raw shrimp in sushi?

  Shrimp, ebi, available raw in sashimi, but almost always lightly poached. The poaching brings out sweet and subtle flavors otherwise masked by a metallic tang. It also prevents the highly perishable shrimp from losing texture to spoilage.

• Can a fish survive in soda?

  Interesting question, but the answer is absolutely not. The acidity of Coke or other sodas will harm the gills and remove the fish's protective slime coating. It wouldn't take very long for the fish to suffocate and die. Since there's no reason a fish should have to live in Coke, there's no reason to even try it.

• What reason was given for the recent large decline in the herring population?

  While overfishing is probably part of the reason for the decline in the herring population, the warming of the region's waters could also be playing a role, scientists say.

• How long can clownfish survive?

  It's been established that a lucky clownfish in the wild can live for up to 6 to 10 years.

• Should you wash hands after fishing?

  RE:Clean Hands! Yes, the fragrance matters. It could be a deterrent for the fish. I personally wouldn't use it while fishing. I try not to even touch my baits with my hands if I have something foreign on them and always use an attractant to cover up your smell.

• Is cured fish raw?

  Cured fish is fish which has been cured by subjecting it to fermentation, pickling, smoking, or some combination of these before it is eaten. These food preservation processes can include adding salt, nitrates, nitrite or sugar, can involve smoking and flavoring the fish, and may include cooking it.

• How long can a dolphin fish live?

  7 years Mahi Mahi/Lifespan