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Freshwater Fish

Freshwater fish spends all or some of their lives in freshwater like lakes and rivers, with below 0.05% salinity. This fish needs various physiological adaptations to keep their bodies’ ion concentration balanced. Freshwater fishes comprise 41% of known fish species.

1,963 Questions

How long can your ocellated snakehead fish go with out eating?

Well, darling, your ocellated snakehead fish can go without eating for about 2-3 weeks. But let's be real, if they start giving you those puppy eyes begging for food, don't make them wait that long. Feed those water babies before they start plotting their escape!

What is a baby carp called?

Well, isn't that a delightful question. A baby carp is called a fry, just like the little fishies you see swimming in the pond. It's a beautiful part of nature's cycle, seeing these tiny creatures grow and flourish in the water. Just imagine all the happy little fry swimming around, bringing joy to the world.

Why would the depth suddenly change if the equipment were detecting a shoal of fish?

The depth would change if the equipment were detecting a shoal of fish because the sonar waves emitted by the equipment would bounce off the fish, leading to a different reading. This could make it appear as if the water was shallower than it actually is due to the presence of the fish in the water column.

What does a large mouth bass do for its ecosystem?

Large mouth bass play a crucial role in their ecosystem by helping to control the populations of small fish and invertebrates. They also serve as prey for larger predators, contributing to the balance of the food chain. Additionally, their feeding habits can help to maintain the health of aquatic habitats.

What is the largest fish ever caught on rod and reel?

The largest fish ever caught on rod and reel is a 2,664-pound great white shark caught off the coast of Australia in 1959 by angler Alf Dean.

Are there freshwater eels in California?

Yes, there are freshwater eels present in California. The most common freshwater eel species found in California is the Pacific lamprey (Lampetra tridentata). They are found in various freshwater habitats, including rivers and streams along the Pacific coast.

How big of a tank should you get for a 7 inch large mouth bass?

A large mouth bass of 7 inches will need at least a 50-75 gallon tank to provide enough space for swimming and growth. However, as they grow quickly, it is recommended to have a larger tank to accommodate their adult size. An 80-100 gallon tank would be better in the long run for a large mouth bass.

How long does it take for a crayfish to grow into an adult?

they take various amounts it all depends of their state. i had recently found some baby crayfish as well and i have to know when they will get bigger i am so anxious to see them grow but as i did my research their is no specific amount that it takes you just have to wait and see!!

What color is a regular stingray?

If by the regual sting ray you mean the one that we see all of the time in moives. Dark blue on top and white on bottom.

What eats salmon?

Salmon are prey for a variety of animals, including larger fish like trout and pike, as well as mammals like otters, bears, and seals. Birds such as eagles and osprey also feed on salmon. Additionally, humans are significant predators of salmon for both subsistence and commercial fishing.

What research has been done on fish oil?

Research on fish oil has shown potential benefits for heart health, reducing inflammation, improving cognitive function, and supporting overall brain health. Some studies suggest that fish oil supplements may also help lower blood pressure and reduce the risk of certain chronic diseases. However, more research is needed to fully understand the impact of fish oil on different aspects of health.

What is the normal hemoglobin level of children?

The normal hemoglobin level for children can vary depending on their age and gender. In general, for children:

  • Infants: 11 to 15.5 grams per deciliter (g/dL)
  • Children under 7 years old: 11.5 to 15.5 g/dL
  • Children over 7 years old: 11.5 to 15.5 g/dL

What happens to fish and other water life when mercury levels get to high?

When mercury levels get too high in water, fish and other water life can accumulate the mercury in their tissues. Consuming these contaminated organisms can lead to mercury poisoning in animals higher up in the food chain, including humans. High levels of mercury can harm the nervous system, impair reproduction, and have other adverse health effects in aquatic organisms.

How long does it take a goldfish to digest food?

Goldfish typically take about 24 to 36 hours to digest their food. It can vary depending on factors such as the size of the food particles and the temperature of the water. Overfeeding can lead to digestive issues in goldfish, so it's important to feed them in moderation.

Does the lateral line system on a fish have a function?

The lateral line provides a fish's sense of hearing and orientation. it contains a complex system of receptors that convert mechanical disturbances or submarine vibrations into nerve impulses. Essentially, it is a fish's underwater ears.

What variables can affect the number of fish in the lake?

Variables that can affect the number of fish in a lake include water temperature, availability of food, habitat quality, presence of predators, fishing pressure, and pollution levels. Additionally, natural events like floods or droughts can also impact fish populations.

How has the smallmouth bass affected the fresh water ecosystem?

Smallmouth bass, as predators, can impact the freshwater ecosystem by altering the population size and behavior of their prey and competing with native fish species for resources. Their presence can lead to changes in the composition and balance of the ecosystem. In some cases, smallmouth bass can outcompete native fish species, leading to a decrease in biodiversity.

What are all the things trouts eat?

Trout are opportunistic feeders and will eat a variety of aquatic insects, crustaceans, small fish, and even small mammals if available. They primarily feed on insects like mayflies, caddisflies, and midges, as well as smaller fish, crustaceans, and terrestrial insects that fall into the water. They are also known to feed on algae, plant matter, and fish eggs.

What is the niche of a bass fish?

The niche of a bass fish typically involves being a predator in freshwater ecosystems, preying on smaller fish, insects, and other aquatic organisms. Bass fish play a crucial role in controlling prey populations and maintaining the balance of their ecosystems. They are also popular targets for recreational fishing.

Do mudfish have scales?

No, mudfish do not have scales. They have smooth, slimy skin that helps them survive in their muddy, swampy habitats. This adaptation allows them to move easily through the soft substrate without getting stuck.

Is a rainbow trout a herbivore?

Rainbow trout are primarily carnivorous, feeding on insects, crustaceans, and smaller fish. They are not herbivores.

What bacteria can live in fresh and salt water and use photosynthesis?

Cyanobacteria, also known as blue-green algae, are a type of bacteria that can live in both fresh and saltwater environments and are capable of photosynthesis. They play a significant role in aquatic ecosystems by producing oxygen through photosynthesis.

What type of water plants help freshwater fish?

Water plants like Hornwort, Java Fern, Amazon Sword, and Anubias are beneficial for freshwater fish as they provide shelter, oxygen, and help maintain water quality by absorbing excess nutrients. These plants also contribute to the overall health and well-being of the fish by mimicking their natural habitat.