Salmon can live in freshwater and saltwater and migrates when it is full grown.
Fish migrate back to their birthplace to ley their eggs. If you take a fish from its natural environment and put it in a fish hatery it wont ley eggs. Fish have a sense so they remember were they were born.
There are numerous types of animals that both thrive in freshwater and saltwater other than fish. Such examples, for a freshwater organism, are: mammals like otters, platypus, and Capybaras, reptiles such as Alligators, Birds, such as the Great Egret, etc. As for saltwater animals, you can find tons of varieties: crustaceans, mammals, Copepods (tiny crustaceans that live in both saltwater and freshwater), Bivalves, Coral, Invertebrae, Cephalopods, reptiles, Gastropods (snails, slugs), Sea urchins, sea turtles, etc.
The cells take in salt to balance the solute concentration-apex
Depends on the type of fish , anywhere from .22oz. to 1lb. unless your speeking about saltwater fish such as the tiger shark they give live birth and at birth young can weigh anywhere from six to ten pounds
Glofish are a variation of the Zebrafish. Zebrafish do not give live birth, so neither do glofish. But on the otherhand, if you want fish that give live birth: Guppies, Mollies, Platies, and Swordtails give live birth. (These are all Freshwater)
Freshwater swordtails don't lay eggs. They are from the family of livebearers. That means that they give birth to live babies.
Piranha is a freshwater fish, all of which lay eggs. Marine mammals give birth to live babies.
a fish (any breed)
Swordtail freshwater tropical or what? Freshwater ones don't lay eggs they give birth to live fry you can tell when they are pregnant because of the fact they get fatter and if you look at the stomach area you can see black dots.
No, they lay their eggs if fertilized, in a pebble bed in the river, in which they were themselves born.
Some live-bearing freshwater fish include guppies, mollies, platies, swordtails, and endlers. These fish give birth to live young rather than laying eggs, making them popular choices for beginner hobbyists due to their reproductive behavior.
because it give birth to young alive Guppys are livebearers.