what kind of fish live in salt water
euryhaline
title: Groundfish text: Groundfish Groundfish are fish that live on, in, or near the bottom of the body of water they inhabit. Some typical saltwater groundfish species are cod, flounder, halibut, and sole. Related terms used in different contexts include "demersal fish" and "whitefish", and (more broadly) "bottom feeder" . Saltwater groundfish harvesting is subject to numerous federal regulations in the United States, such as 50 CFR 679, dealing with fishing in Alaskan waters. Freshwater groundfish harvesting is not subject to federal regulation per se (certain species may be subject to other rules), perhaps because there are fewer true groundfish species that live title: Saltwater fish text: Saltwater fish Saltwater fish, also called marine fish, are fish that live in ocean water. Saltwater fish can swim and live alone or live in a large group together, called a school of fish. Saltwater fish are very popular among deep sea fishermen and aquariums all over the country. Saltwater fish are very commonly kept in aquariums for entertainment. Many saltwater fish are also caught to be eaten. Fish that live in the ocean can be carnivores, herbivores, or omnivores. Herbivores in the ocean eat things such as algae and flowering seagrasses. Many herbivores' diets consist of primarily algae. Most title: Freshwater fish text: Freshwater fish Freshwater fish are those that spend some or all of their lives in fresh water, such as rivers and lakes, with a salinity of less than 0.05%. These environments differ from marine conditions in many ways, the most obvious being the difference in levels of salinity. To survive fresh water, the fish need a range of physiological adaptations. 41.24% of all known species of fish are found in fresh water. This is primarily due to the rapid speciation that the scattered habitats make possible. When dealing with ponds and lakes, one might use the same basic models of title: Groundfish text: in fresh water. Groundfish Groundfish are fish that live on, in, or near the bottom of the body of water they inhabit. Some typical saltwater groundfish species are cod, flounder, halibut, and sole. Related terms used in different contexts include "demersal fish" and "whitefish", and (more broadly) "bottom feeder" . Saltwater groundfish harvesting is subject to numerous federal regulations in the United States, such as 50 CFR 679, dealing with fishing in Alaskan waters. Freshwater groundfish harvesting is not subject to federal regulation per se (certain species may be subject to other rules), perhaps because there are fewer true groundfish title: Freshwater fish text: speciation as when studying island biogeography. Freshwater fish differ physiologically from salt water fish in several respects. Their gills must be able to diffuse dissolved gasses while keeping the salts in the body fluids inside. Their scales reduce water diffusion through the skin: freshwater fish that have lost too many scales will die. They also have well developed kidneys to reclaim salts from body fluids before excretion. Many species of fish do reproduce in freshwater, but spend most of their adult lives in the sea. These are known as anadromous fish, and include, for instance, salmon, trout, sea lamprey and