How do fish communicate with each other?

It is well known that fish communicate by gesture and motion, as in the highly regimented synchronized swimming of schools of fish. Some species use electrical pulses as signals, and some use bioluminescence, like that of the firefly. Some kinds of fish also release chemicals that can be sensed by smell or taste.

FAQ

• Is catfish or tilapia better for you?

  Tilapia is also a viable choice when looking for leaner seafood options but contains fewer omega-3s than catfish. Additionally, catfish is a favorable choice no matter what stage of life you're in.

• Why do trout get hook jaw?

  A kype is a hook-like secondary sex characteristic which develops at the distal tip of the lower jaw in some male salmonids prior to the spawning season. ... The kype functions as a secondary sexual characteristic and influences the formation of dominance hierarchies at the spawning grounds.

• Is salmon roe caviar good for you?

  Beyond Omega-3 fatty acids, salmon eggs also contain a healthy amount of antioxidants and vitamins B12, C, E, and D, as well as folate, thiamine, and selenium. Oh yeah, and one ounce salmon roe contains 6 grams of protein.

• How big is a big kingfish?

  Kingfish are large predatory fish with adults growing to over 1.5m in length. They usually occur in schools ranging from a few fish to well over 100. Recreationally-caught kingfish average 10kg but can be more than 30kg.

• Do crayfish feel pain?

  Like lobsters, crabs, and crayfish, other marine animals feel pain. In fact, fish are similar to dogs and cats in their experience of pain and pleasure.

• Can a fish be too big to keep?

  This is a basic principle in fishery management. Accordingly, professional fishers and recreational anglers have to release any fish they catch that is smaller than the minimum size stipulated in many fisheries regulations; only the big ones they are allowed to retain.

16 Related Question Answers Found:

• Is fly fishing safer for the fish?

  Fly fishing can be surprisingly dangerous if you are not careful. The biggest risks are dehydration from the heat, hypothermia from the cold water, and drowning from waders filling up with water. There are also bug bites, poisonous plants, snakes, and hooks that can impale you.

• Are aquarium shrimp easy to take care of?

  Shrimps are very easy-to-care which makes them a great choice. As there are so many Freshwater Shrimp Species, it might be difficult for you to choose which one you should buy. In addition, new species are always being discovered and bred, and it is ever-growing.

• How big do king mackerel get?

  5 ½ feet Biology. King mackerel grow fast, up to 5 ½ feet and 100 pounds. They can live more than 20 years. They are able to reproduce when they reach 2 years of age.

• Can I add canned tuna to my dogs food?

  Canned fish such as tuna or salmon makes a healthy treat for your dog. ... You can also feed your dog smelts, sardines, anchovies, herring, and mackerel. These are considered to be fatty fish because they tend to have a higher proportion of omega-3 fats than other fish.

• How do you firm up chicken livers for fishing?

  One way to toughen chicken livers up enough to stay on your hook is by salt and borax curing. You can also use a product by Pro-Cure Bait Scents. The Pro-Cure will add some scent and flavor to your chicken livers as well as dry and toughen them so they will stay on your hook better.

• Does salmon burn belly fat?

  Consuming salmon may help you manage your weight by reducing appetite, boosting your metabolism, increasing insulin sensitivity, and decreasing belly fat.

• How do you tell how old a blue catfish is?

  Count the growth rings on the slice of fin, from the center outward. The number of dark rings indicates the number of years the fish has lived. For example, 10 dark rings would indicate the fish has lived for 10 years.

• How many shrimp can go in a 2.5 gallon tank?

  5 or 6 is a good, you could add a few more though. You could get both males and females, I've noticed they seem to stop breeding once the tank gets cramped.

• Are Manila clams expensive?

  The price of some good quality Manila clams (Venerupis philippinarum) exceeded that of arc shell (akagai), a luxury food. At retail, clams in the shell are selling from 100 to 180 yen (USD 0.90-1.62, EUR 0.83-1.49) per 100 grams.

• What can I use instead of crawfish?

  I suggest using shrimp instead of crawfish if you can't find crawfish tails. Be sure to add an additional 2 tablespoons of butter to the etouffee while it cooks in place of the crawfish fat, which adds gorgeous and wonderful seafood flavor.

• How do shrimp move around?

  Unlike fish, shrimp do not have fins that enable them to swim, but they can certainly move around in the water. A shrimp "swims" by quickly pulling its abdomen in toward its carapace (body). This motion shoots them through the water. However, because of body configuration, it also means that shrimp swim backward.

• Can you drink red wine with salmon?

  Pair Salmon With Pinot Noir! Since salmon is bolder in flavor and texture, it actually stands up well to red wine! The type of red wine is key, though: A big, heavy-bodied Cabernet Sauvignon will indeed overpower salmon, but a light-bodied red will not.

• Does undercooked fish make you sick?

  Foodborne illness can result in severe vomiting, diarrhea and abdominal pain, among other symptoms. Major types of food poisoning that can result from eating raw or undercooked fish and shellfish include Salmonella and Vibrio vulnificus.

• Is an Oscar fish smart?

  Oscar fish is known to be one of the most intelligent fish in the aquarium hobby. You can clearly see its intelligence by just watching it for a few minutes. This fish doesn't just move around mindlessly.

• Does curing salmon kill bacteria?

  Salmon, in particular, should be bought previously frozen — salmon is anadromous, living in both salt and fresh water, and can pick up worms that other ocean fish don't; though curing can kill bacteria, only proper freezing can kill these parasites. Keep the fish refrigerated at all times, even after it is cured.

• Do dolphins bite lures?

  Dolphins are known to steal various types of bait, both dead and alive, as well as catch (e.g., grouper, sheepshead, and Spanish mackerel) from recreational fishing gear, including catch attached to artificial lures.