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Fish
A fish is any aquatic vertebrate animal that is typically cold-blooded, covered with scales, and equipped with two sets of paired fins and several unpaired fins.
9,777 Questions
Structures made of bone contained in the fins of perch minnows and eels?
The structures made of bone contained in the fins of perch are called fin rays. They provide support and help control the movement of the fins. In minnows and eels, these fin rays are made of a protein called elastin, which gives them flexibility and allows for precise movements in the water.
A scavenger is an animal that feeds on dead and/or decaying organisms. A halibut fish, however, typically feeds on plankton during its first year of life, whereas at two or three years of age, they begin to feed on euphausiids (small shrimp-like organisms) and small fish. As halibut grow, fish make up a larger part of their diet. Besides pollock, sablefish, cod, and rockfish, large halibut also eat octopus, herring, crabs, clams, and smaller halibut.
Therefore, the answer is no. A halibut is not a scavenger.
How long does the blue tang fish live?
Answer:
31.0 to 54.0 cm, depending on the species.
see:
http://fishbase.org/ComNames/CommonNameSearchList.php
Yes, fish can get constipation, typically due to overfeeding, poor diet, or stress. Signs include reduced appetite, buoyancy issues, and stringy feces. It's important to address the underlying cause by adjusting diet, offering high-fiber foods, and ensuring water parameters are suitable.
What is the word for swim for a fish?
The word for swim for a fish is "swim." Fish swim by moving their bodies and fins to propel themselves through the water.
Do Fish look like they are fighting when mating?
While fish may appear to be engaged in a struggle due to rapid movements and chasing during mating rituals, it is actually a natural part of their courtship behavior. During mating, fish will often exhibit aggressive behaviors as they compete for a mate, establish dominance, or defend their territory.
Name two ways people can help save the Pacific Salmon?
The two ways people can help save the Pacific salmon are simple. The first option is to talk to people and create awareness to save Pacific salmon and the other way would be to conserve water.
It is difficult to pinpoint one specific individual as the creator of fishing, as it likely emerged independently in various cultures around the world. Fishing is an ancient practice that has been essential for human survival and has evolved over thousands of years as a method of harvesting fish for food.
What is the House of a goat called?
A house or shelter for goats is commonly referred to as a "goat barn" or "goat pen." It provides protection from the elements and predators, as well as a safe and comfortable environment for the goats to rest and feed.
How do you kill a snakehead fish?
I have heard that powdered fox urine can scare snakes away, and my friend's grandma says she uses it to keep snakes away. I don't know how effective this is because she may not have hardly any snakes living around her house anyways. An easy way to do it is to just simply capture the snake and put it in a box and transport it to a new habitat similar to its old one. Catch him and move him to a lake or pond nearby. hi
What plants live in ocean trenches?
Some plants that are known to live in ocean trenches include bamboo coral, bubblegum coral, and brisingid sea stars. These plants are adapted to extreme conditions such as high pressure, low temperatures, and limited food availability in these deep-sea environments.
Is the cuttle fish territorial?
Yes, although they are considered to be more "aggressive" than "territorial" the simple answer is yes. I once had a tank full of beautiful cichlids, and everything was going fine. They live with one another in harmony, although every now and again I would find they turned on one injured or slightly smaller fish and find it floating at the top. You cannot prevent this. It is their way of "natural" selection, or rather, eat or be eaten. If you have a very large tank it is possible to have cichlids AND other species of fish, but it is not advisable. Cichlids should stay with cichlids, and other "non-aggressive" fish are fine to mix.
Are fish eggs clear and white?
Fish eggs come in a range of colors, depending on the species. While some may be clear or white, others can be orange, pink, or even black. The color of fish eggs is influenced by the specific pigments found in the species' eggs.
Yes, salmon are a type of fish that are known for their pink flesh and are commonly found in freshwater and saltwater habitats. They are popular among seafood lovers for their taste and nutritional benefits.
Can Flounders change color to match their surroundings?
Yes, flounders have the ability to change color and pattern to blend in with their surroundings, providing them with camouflage to avoid predators and ambush prey. This ability allows them to effectively camouflage themselves on the ocean floor, making them skilled ambush predators.
A Bony Pile was the waste from an underground coal mine. Piled up over time (decades) the pressure was enough to ignite the coal mixed with waste.
What you got was a steaming and sulfur discharge on the surface.
Is a parana fish an amphibian?
No, a piranha fish is not an amphibian. Piranhas are freshwater fish belonging to the Characidae family and are known for their sharp teeth and carnivorous feeding habits. Amphibians are a separate class of animals that includes frogs, toads, salamanders, and newts.
The biting behavior of blue fish can vary based on factors like location, weather, and time of day. It's best to check with local fishing reports or talk to fellow anglers in your area for the most up-to-date information on blue fish activity.
A piranha (singular) can eat anything that it can chew through or swallow whole, given enough time. A horse has vaguely similar characteristics to a human in the sense that it's skin is not protective in that sense, so yes, a piranha can indeed eat a horse, given enough time. Now a whole school would be able to do so in minutes.
Outer covering of jawless fish?
Jawless fish do not have scales, so their skin is naked. They also do not have jaws or paired appendages. They do, however, have a cartilaginous skeleton and a dorsal nerve cord that leads to a distinct brain.
What ocean zone is a star fish in?
Starfish are found in all temperate or tropical oceans. They are hugely adaptable and can live happily on sandy, coral, muddy or rocky seabeds. They are most abundant in the Atlantic ocean.
What is the Function of a fishes adipose fin?
The adipose fin in fish serves as a stabilizer during swimming and helps in maintaining balance. It also contains important sensory nerve cells that provide feedback to the fish about the surrounding environment.
Stonefish have few natural enemies due to their highly venomous spines which deter predators. However, some marine animals such as sharks, sea snakes, and stingrays are known to prey on stonefish. Humans are also a threat to stonefish through activities like fishing and habitat destruction.
How many died to the cause of the puffer fish?
The exact number of deaths caused by puffer fish ingestion is difficult to determine, but there have been reported fatalities from consuming improperly prepared puffer fish, which can contain a deadly toxin called tetrodotoxin. It is estimated that several dozens of deaths occur annually worldwide due to puffer fish poisoning.
Do fish have a 7 second memory?
There is a popular belief that goldfish only have a three-second memory span and every lap of their fishbowl is like seeing the world for the first time.
Children's films like Disney's Finding Nemo - in which one of the main characters is a dory who suffers from short-term memory loss - have done little to help dispel the myth that fish are dumb.
But a 15-year-old schoolboy from Adelaide has just debunked that theory.
He has conducted a simple experiment, which proves that the humble goldfish is smarter than we think.
"I mean it never really seemed feasible to me, that they had a three, five, 10 second memory because animals need their memory, so they build up over time a knowledge of where the food is," said Rory Stokes, a student at the Australian Science and Mathematics School.
"It seemed pretty impractical for a species to evolve without these capabilities."
He conducted a school experiment to prove his theory, using a small tank of goldfish.
"I decided to get a bit of red Lego and just feed them next to that. Every day I'd put it in and sprinkle food around it," he said.
"At first they were a bit scared of it, a bit wary, but by the end of the three weeks, they were actually almost coming before I put the food in."
After leaving the fish alone for a week, Rory placed the red Lego block in the tank again.
"They remembered perfectly well," he said.
"They actually had a time faster than the average of the three feeds before I left."
The goldfish showed that not only could they retain information, they also had the ability to recall it at a later date.
Culum Brown, a research fellow at Sydney's Macquarie University, has studied fish behaviour for more than a decade.
He says his studies of Australian native species prove fish are intelligent creatures that know how to avoid predators and catch food like any other animal.
"The thing that I really liked about Rory's experiment is he not only got that classical conditioning going [but] the fact that he could get them respond just to that specific coloured marker I thought was really good," he said.
"One of the experiments I did was looking at teaching fish to escape an artificial trawl.
"The net had a small escape route in it and the fish just had to learn where that hole was and they learned that in about five trials.
"If you put the fish aside and test them a year later, they still remember exactly where the escape route is."
It is not a bad feat for an animal with a brain 380,000 times smaller than a newborn human baby.
But if fish are smart, it raises the question of whether it is cruel to keep them in tiny fish tanks.
"Definitely - I think the more complicated you make your fish tank, the happier your fish is gonna be," Dr Brown said.
"In fact, the best thing to do is to keep changing it around, so make it interesting for them.
"You'll find that if you do that, your goldfish will be much more active and much happier in general."
