how does a goldfish breath?

Question

im doing a science project you see and i need to know

Answer 1

The water surrounding a fish contains a small percentage of dissolved oxygen. In the surface waters there can be about 5 ml. of oxygen per liter of water. This is much less than the 210 ml. of oxygen per liter of air that we breath, so the fish must use a special system for concentrating the oxygen in the water to meet their physiological needs.
The circulation of blood in fish is simple. The heart only has two chambers, in contrast to our heart which has four. This is because the fish heart only pumps blood in one direction. The blood enters the heart through a vein and exits through a vein on its way to the gills. In the gills, the blood picks up oxygen from the surrounding water and leaves the gills in arteries, which go to the body. The oxygen is used in the body and goes back to the heart. A very simple closed-circle circulatory system.
The gills: the gills are composed of a gill arch (which gives the gill rigid support), gill filaments (always paired), and secondary lamellae, (where gas exchange takes place).

Answer 2

Most fish exchange gases by using gills that are located on either side of the pharynx. Gills are made up of threadlike structures called filaments.

Each filament contains a network of capillaries that allow a large surface area for the exchange of oxygen and carbon dioxide.

Fish exchange gases by pulling oxygen-rich water through their mouths and pumping it over their gill filaments.

The blood in the capillaries flows in the opposite direction to the water, causing counter current exchange. They then push the oxygen-poor water out through openings in the sides of the pharynx.

Some fishes, like sharks and lampreys, possess multiple gill openings. However, most fishes have a single gill opening on each side of the body.

This opening is hidden beneath a protective bony cover called an operculum. Some fishes, such as lungfish, have developed an adaptation known as a labyrinth that allows them to survive in oxygen-poor areas or places where bodies of water constantly dry up. These species of fish possess specialized organs that serve as lungs.

A tube brings air containing oxygen to this organ by way of the fish's mouth. Some kinds of lungfish are so dependent on receiving oxygen from the air that they will suffocate if not allowed to reach the surface of the water.

More information on Fish biology see links below in my sources. They have got some good charts and pictures to help you understand.

Good luck with your project and have fun.

Answer 3

Like pretty much all fish through gills

Answer 4

try your own water, it truly is the merely thanks to get a unique studying. ascertain ammonia and nitrites are examined besides as nitrates. what variety of salt baths have you ever been giving him? Is he bloated in any respect? If this is common salt that encourages his body to handle extra fluid (that is all it does). If its epsom salt that encourages his body to expel fluid (back, that is all it does). i'd do a 50% water replace, when you've examined your own water with a liquid try kit, and ascertain the clear out is causing floor agitation. Bubblers merely "oxygenate" even as the bubbles pop on the outdoors - filters do a similar element if the clear out outflow is breaking the outdoors of the water. Bubblers are merely decorations extremely.

Answer 5

the water they live in has oxygen in it and the gold fish gets that oxygen through their gills

by the way gold fish don't have a 3 second memory i know because I've got gold fish and if i wriggle my fingers at the top of the water they think it is food. now how can they remember that everyday?

Answer 6

Through it's gills. Though I suggest you research into fishes' biology in general to learn about it.

Answer 7

Same as most other fish. The gills filter oxygen from the water, so they can breathe. Good luck with your essay..............

Answer 8

Same as any other fish through its gills.

Answer 9

They get oxygen through their gills via osmosis.

Answer 10

gills