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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.
2,132 Questions
Sharp-toothed fish include most species of sharks, as well as piranha, barracuda, and gars.
How do tunicates eliminate nitrogenous wastes from their bodies?
Tunicates are invertebrate marine animals. These animals have very simplistic or lack an excretory systems and must eliminate nitrogenous waste through the diffusion of ammonia through their tissues. A sea squirt is a tunicate.
Can freshwater trout freeze and live?
if you freeze a fish and thaw it soon enough it might live. some animals can survive if u freeze them. e.g. a lobster will come back to life if u thaw it
Largemouth, no matter where they are found, eat small fish, crayfish, insects, even small snakes or baby ducks and baby alligators.
How does black dragon fish breath?
A black dragon breathes acid, and a blue breathes lightning, a gold breathes regular fire and so does a silver, white breathes ice, and green breathes, well, that i don't know, but a black dragon breathes acid. The book in which the Black Dragon is featured is revealed at the end of the book to be entirely fiction. Not that I don't believe in Dragons, but that book is fictional.
Humans, large pike, herons, raccoons, bears, larger bass, otters, mink.
A single piranha, no. A very large school of piranhas, possibly, if the human sits still long enough or bleeds out. They can do a lot of damage, but humans are too big to easily inflict fatal damage.
Do fish live in the mountain streams and rivers?
Yes, mostly around the edge or in more shallow or slow parts of the river. Anywhere frogs live, tadpoles wil live in the body of water near that.
Why does your goldfish has white stuff on it fin?
White particles on fishes' fins indicate fungal growth. It should be treated with fish medicines immediately or it may spread.
What is an example of mutualism in the biome estuary?
An example of mutualism in the estuary biome would be the clownfish and the sea anemone. They benefit from each other, and the activity of the clownfish results in greater water circulation around the sea anemone.
It is natural for fish to swim in any direction and and at night time when there is no light from the moon they go into direction in surfaces where artificial light is present. Their biological requirement for oxygen directs them to swim counterflow to the source of current that is normally loaded with high amount of dissolve oxygen .
The water that they swim in is very dirty. Hazardous water may contain dangerous chemicals and other waste products. It has a lot of germs and bacteria. All of the nasty odor builds up on the fish. It gets trapped inside of their fins and scales.
People often say that, "Fish doesn't smell when it's fresh." That is not true, this is the major factored caused by the condition of the water that they are living and swimming in.
The fish will start to smell bad if they are left out of the water for more than 12 hours. This is because the bacteria and odor on the fish is decaying which will create an unpleasant smell on the fish.
Fishe caught in canals, swamps, reservoirs and sloughs often smell bad.
Fishe caught in rivers, lakes and oceans shouldn't smell or smell bad unless if they swam or were transferred from the following locations above.
If you plan to cook and eat the fish, make sure you wash and clean the fish good!
guppies do not lay eggs the give birth to fry(baby guppies) and it depends on the environment it is in.. anywhere to 2-100.
Guppies do not lay eggs. They give birth to live swimming young, like dolphins.
Butterfly fish are fish, not butterflies, and all species of fish are vertebrates. They have a spine and spinal cord, and an internal skeleton. They belong to the Phylum Chordata.
Mammals, birds, fish, reptiles and amphibians are all vertebrates.
How long do fish pregnancies last?
Firsly, most fish don't get pregnant. The ones that do have highly variable gestation times that are dependant on what type of fish it is. Guppies for example carry the young inside for 21-30 days. The Spiny Dogfish on the other hand, carries its young for about 18-24 months.
How can you tell what gender your fish is?
guppies-you must wait until they are at least 1 1/2 months old and the males will be more colorful and possibly a little smaller females will have a bigger gut
AnswerYou can tell very early, the females will have a dark triangular area on their belly close to the anal fin. As they age the male's anal fin will transform into a gonopodium. This is their sexual organ. It just looks like a pointy anal fin. The females anal fin stays the same and is normal looking. It is very easy to distinguish if you have different sexes side by side that you can compare. The males of most livebearers can be identified this way. Including guppies, mollies, swordtails, and platys.Perch,bass,other pike,trout..Any other fish eating fish which is larger than the pike..
How do you know when a fish bites a jerk-bait?
There will sometimes be a sudden tug on the line, or a shaking feeling. Bass will sometimes hit so hard they will knock slack in the line, reel quickly and set the hook.
What states have alligator gar?
China (Alligator sinensis) and the United States (Alligator mississippiensis) are the only countries holding populations of "true" alligators. Caiman species, which are related to alligators, can be found from southern Mexico through northern Argentina. Crocodiles of many species are found in many tropical waters globally, except in areas from which they have been eliminated by man. These are all "crocodilians"....but alligators themselves are only found in China and the USA
