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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.

6,314 Questions

What is the purpose of a pelvic fin?

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Asked by Wiki User

Pelvic fins play a role in stabilization of the body during swimming. The bony fish pelvic fin is simple and is supported on a flat-lying triangular plate, somewhat similar to that of the female of the shark Falcatus. Pelvic fins of all sexually mature male chondrichthyans, however, also feature extensions of the fin axis that form sperm conducting ducts for internal fertilization of females. These paired structures, the claspers, are characteristic of adult male Chondrichthyes.
Chondrichthyans related to the modern chimaeroids also develop a tall dorsal process and a specialized first radial armed with denticles (pre-pelvic tenaculum), as seen in a relatively primitive state in Echinochimaera snyderi.

What eats a bluegill?

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Asked by Wiki User

Catfish, bass, pike, bowfin. Herons, cormorant, anhingha, otter, mink, humans.

Can less than 150 minnows live in the lake?

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Asked by SeemaSajidgp0503

Yes, the number of minnows would have many variables, such as how large the lake is and how many predators there are. A school smaller than 150 could definitely exist.

What are some common fish in the Mississippi River?

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Asked by Wiki User

Here is a list of the freshwater fish that live in Mississippi: * Largemouth Bass * Bluegill * Redear Sunfish

* Flier Sunfish

* Green Sunfish * Pumkinseed Sunfish

* Warmouth Sunfish * Blue Catfish

* Channel Catfish

* Flathead Catfish

* White Catfish

* Bullhead Catfish * Longnose Gar * Spotted Gar * Alligator Gar * Carp * Shad * Smallmouth Buffalo Fish * Striped Bass * White Bass * White Perch * creek minnows like Dace,and Chubs

When can you start fishing in Pennsylvania?

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Asked by Wiki User

Seasons are set by each county and each species.

Where do people get most of the freshwater they need?

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Asked by Wiki User

It's pretty much needed all over the world. It supports a variety of things. One being humans. We live off of it, it's in our food, our drinks, we use it for hygene and so much more. It supports wildlife and habitats, ecosystems and much more. So fresh water is needed all over the world not just in one particular place.

Is there such thing as freshwater in the ocean?

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Asked by Wiki User

?Previous answer: ?

Mediterranean


THE MEDITERRANEAN IS VERY SALTY. ?The closest you'll get to a freshwater sea is the Sea of Galilee, which is really a freshwater landlocked lake.?

What is a small body of still freshwater?

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Asked by Wiki User

A small, flowing body of freshwater is called a stream. Streams may also be called a: brook, creek, bayou, rivulet, wash, or run.

What kind of animals live in The Great Lakes?

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Asked by Wiki User

the animals that live in the great lakes, are deer, elk, bobcats, lynxes, hawks, frogs, birds, fish, mountain lions, moose. and whoever asked this question, please tell me where exactly the great lakes are, and the st. Lawrence lowlands are, thx, and ur welcome.

Why do most lakes freeze in winter but oceans do not?

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Asked by Wiki User

A solution of salt in water has a lower freezing point than that of pure water. Presence of salt in the sea water causes a lowering of the freezing point. Lakes are mainly fresh water which will freeze at a higher temperature than sea water. Which means a fresh water lake will freeze over before the sea will because the temperature needs to be much colder to freeze sea water because of the salt dissolved in the sea water.

What rivers are saltwater?

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Asked by Wiki User

As the question is not precise - [1] There is Saltwater River on the Tasman Peninsula in Tasmania. [2] All rivers contain salts of some kind. [3] All tidal rivers will contain saltwater - When the seas tide comes in and the river 'flows' in the opposite direction to its natural flow until it is stopped by an obstruction [such as a weir] or by the rivers own flow being stronger or the tide going out.

Which one of the Indian river forms an estuary?

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Asked by Wiki User

Narmada and Tapi are the only rivers that forms estuaries in India

What are the most famous type of fish in the pacific ocean?

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Asked by Wiki User

The most famous fish in the Pacific Ocean depends on what it may be famous for. Sharks are popular in almost any ocean and fish used for food such as halibut could be considered famous as well.

What was the biggest fish ever caught in lake superior?

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Asked by Wiki User

The largest lake sturgeon ever caught in Lake Superior was in 1922 by Lapointe Fisheries in Batchewana Bay. It was seven feet, eleven inches long and weighed 310 pounds.

What is Idaho's state dog?

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Asked by Wiki User

There have been many debates about if we should have the Blue Heeler as Idaho's state dog, but they decided we shouldn't have a state dog.

Which are Marine wealth in ocean?

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Asked by Wiki User

Marine wealth information basically provides us with information on the resources like minerals and the aquatic plants and animals in a given water body. The given water body is the ocean, sea and rivers.

What percentage of Canadians live in the Great Lakes?

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Asked by Wiki User

Humorous Answer:

Exactly zero, unless Canadians have developed gills without our knowing it. If they have, then we must hire more border guards to watch over the shorelines of these lakes. Our borders are already under assault, and to have thousands of "Creature From The Black Lagoon" like animals crossing our borders is scary!

Difference in largemouth and smallmouth bass?

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Asked by Wiki User

The largemouth, Micropterus Salmoides, is normally larger than the smallmouth, Micropterus Dolmeides. The smallmouth is more of a bronze color, while the largemouth is dark green or blackish on top.The smallmouth's dorsal notch is not as pronounced as the largemouth's, and the largemouth's closed mouth extends past the eye, while the smallmouth's ends in front of the eye. Pound for pound, most angler consider the smallmouth the better fighter.

What fish are in little lake midland Ontario?

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Asked by Wiki User

Bass; Lunge; Perch; Sunfish; Catfish;

as a comment to the above: I have never caught a perch on this lake, but I have caught 2 walleye, some bass.

There is a creek in the North east corner, I used to fish this creek for trout when I was a kid not sure if any trout are in the lake now though.

I also have no idea how the walleye got there, it had to have been stocked at one time, its the only way. I know the muskie were stocked in the 60's, dropped from a plane is the rumour.

Fish that start with letter Y?

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Asked by Wiki User

Yellow Bass, Yellow Perch, Yellow-and-black Triplefin, Yellowfin Grouper, Yellowfin Pike, Yellowtail Amberjack and Yellowtail Kingfish are fish. They begin with the letter Y.

Similarities between salt water and freshwater?

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Seawater is water from a sea or ocean On average, seawater in the world's oceans has a salinity of about 3.5% (35 g/L, or 599 mM). This means that every kilogram (roughly one liter by volume) of seawater has approximately 35 grams (1.2 oz) of dissolved salt (predominantly sodium chloride iron: Na+, Cl−). The average density of seawater at the ocean surface is 1.025 g/gm Seawater is denser than both fresh water and pure water (density 1.0 g/ml @ 4 °C (39 °F)) because the dissolved salts add mass without contributing significantly to the volume. The freezing point of sea water decreases as salt concentration increases. At a typical salinity it freezes at about −2 °C (28.4 °F). The coldest sea water ever recorded (in a liquid state) was in 2010, in a stream under an Antarctic glacier, and measured −2.6 °C (27 °F