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Can you tell how old a fish is?

Asked: Jonathan Demers, Last Updated:

Aging fish is similar to aging a tree by counting the number of growth rings. However, the age of the fish is determined by counting the number of wide growth rings called annuli. In our example, the bluegill is 4 years old.

FAQ

  • Can too many snails kill my fish?

    Nuisance snails can become a real problem as they breed rapidly and thrive on uneaten fish food, plants and algae. They even eat dead fish. Their size means that, however hard you try, you never seem to eradicate them all — and they always come back in force!

  • Can you get botulism from smoked salmon?

    The concentration required to prevent growth at room temperature can vary from as low as 3 per cent to 5 per cent or more, so that the amount of salt present in smoked salmon is on its own no guarantee against the danger of botulism.

  • Is it a vein or poop in shrimp?

    The dark line that runs down the back of the shrimp isn't really a vein. It's an intestinal track, brown or blackish in color, and is the body waste, aka poop. It is also a filter for sand or grit.

  • Which fish is the world's fastest swimmer?

    Black marlin According to the BBC, the muscular black marlin takes the title for World's Fastest Swimmer. Growing to a whopping 4.65 metres (15 ft) and weighing up to 750kg (1650 lbs), these big fish have clocked speeds of up to 129km/h (80 mph)!

  • What size rod do you need for salmon fishing?

    If you are out for the big guys like chinook, then you don't need the extra excitement and anywhere from size 8 (8 foot) to size 10 rod will be your most common size for big salmon.

21 Related Question Answers Found:

  • Can you eat canned smoked oysters raw?

    Anything in a can is safe to eat straight out of the can. The canning process ensures that it's safe. A: Canned oysters are either fresh or smoked—either way they are cooked and edible right out of the can. However, they are usually used as an ingredient, whether in a dip, a soup or chowder, a stuffing, or a casserole.

  • Why are bloodworms bad for fish?

    Bloodworm larvae are very rich in protein, so always read the feeding recommendations before using them as fish food. It is recommended to limit Bloodworm feedings to one or two times per week, as fish are sensitive and can get constipation if feed too much.

  • How rare is it to find a pearl in an oyster?

    Experts say the chances of finding a pearl in an oyster is about 1 in 10,000.

  • What is the yellow stuff in crawfish tails?

    Hepatopancreas What is the yellow stuff inside a crawfish? The bright yellow to orange crawfish “stuff” squeezed from the heads and sticking to the tail meat is not fat in the usual sense. It actually is an organ in the head called the hepatopancreas that functions much like the liver in other animals out there.

  • How long can salmon stay frozen in freezer?

    Fresh salmon: Place unused fresh salmon in a vacuum sealed bag or freezer sealed bag. Place current date on the fresh salmon and store in freezer for up to 3 months.

  • Are fish fingers good for losing weight?

    Tuna, canned in brine Most of the essential fats are lost during the canning process but it's still a great high-protein food with just 99 calories and less than 1g of fat per 100g. Fish fingers When grilled, a couple of fish fingers only give you around 100 calories and 7g of fat.

  • How long can you freeze meat and fish for?

    You can freeze meat for a long time and it will still be safe to eat, but the quality will deteriorate so it's best to eat it within 3 to 6 months.

  • How do you attract big fish?

    When you go fishing, you can bait up the area you are in to attract fish. You can do this anywhere, even offshore. If you are carp fishing, you will throw in dog pellets, fish pellets, and bread in the area you are fishing in. The carp will pick up on this and start moving into your area.

  • What kills crayfish?

    Kill the crayfish with an oxidizing solution made of calcium hypochlorite powder or granules (available in stores that sell swimming pool and spa chemicals) and water. Pour the liquid into each crayfish hole and seal it by pressing the soil with your foot.

  • Do catfish like smelly things?

    Catfish can smell some compounds at one part to 10 billion parts of water. Water flows over folds of highly sensitive tissue inside the catfish's nostrils, allowing the fish to detect certain substances in its environment. ... Many catfish anglers believe smelly baits are best for catfish, but Caprio disputes this.

  • How long does it take to get food poisoning from raw fish?

    Scombroid poisoning symptoms develop 20 to 30 minutes after you eat the affected fish. They include flushing (turning red) of the face, nausea, vomiting, hives, and abdominal pain. These symptoms are similar to other allergic reactions. Getting scombroid poisoning does not mean you are allergic to fish.

  • Is week old tuna safe to eat?

    Yes, you can eat week-old tuna if the can remains unopened and properly stored in a refrigerator. Indeed, a canned tuna deteriorates gradually after its best date. The color, textures, and flavor change with time, so we always recommend you to consume as sooner as possible within 1 to 2 days after opening the can.

  • What is the most eaten fish in Mexico?

    Sardine was the most consumed type of fish and seafood in Mexico in 2019, based on a selection of products.

  • Can yellowfin tuna be cooked rare?

    Yellowfin tuna steak has a firm, dense beef-like texture which makes it excellent for grilling and is traditionally cooked rare to medium-rare in the center as for beef steak.

  • Are croaker and whiting the same?

    Whiting, (species Gadus, or Merlangius, merlangus), common marine food fish of the cod family, Gadidae. Several species of the drum, or croaker, family (Sciaenidae) are also called whiting, among them the northern kingfish (Menticirrhus saxatilis). ...

  • Can crayfish be poisonous?

    Crayfish are common throughout North America, where hundreds of species live in rivers, streams, lakes and ponds. ... It lives in snails and crayfish but only causes a dangerous infection if it ingested by mammals, including dogs, cats and humans, who eat it raw.

  • Do crayfish crawl out of tanks?

    But if they can't climb out of the water easily, they will effectively drown. Crayfish do not need to be kept a true aquarium, although this provides the best viewing of these creatures. ... Crayfish are capable of climbing air hoses or anything else that extends high enough for them to reach the top.

  • Is farm raised salmon cancerous?

    A report in the January issue of the journal Science touched off alarm that farmed salmon contained levels of polychlorinated biphenyls (PCBs, a kind of dioxin) that could be harmful. The concern over PCBs stems from their role as a likely carcinogen in humans, based on studies in animals.

  • Where do catfish live in rivers?

    Catfish can thrive in many water systems, from shallow, warm ponds to fast rivers. While different species may like varying habitats, there are general areas that tend to hold catfish. During the day, look for catfish in muddy water areas, such as a tributary and its outflow.

  • Is Arby's fish real fish?

    Arby's Crispy Fish Sandwiches are served with a generous Alaskan pollock filet that has a mild flavor, so it's not overwhelmingly “fishy.” Fried fresh, it's a great lunch option while on the go.

  • What kind of fish is a tilapia?

    The name tilapia actually refers to several species of mostly freshwater fish that belong to the cichlid family. Although wild tilapia are native to Africa, the fish has been introduced throughout the world and is now farmed in over 135 countries (1).

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