Wednesday, May 4, 2011

What is a lateral line in fish?

What is a lateral line in fish?
The lateral line is a feeling that consists of a series of scales that most fish along the sides, stretching their head to tail. Under these scales are a system of fluid-filled channels and specialized cells that absorb in the brain of the fish forward. The lateral line helps fish to detect movement and vibration in the surrounding water including predators and prey.
Sidebar or similar bodies of fish, such as blind cave fish (which has rows of neuromasts on their heads) is just used to find food without using sight. Killifish sense ripples caused by insects struggling on the surface of the water. Pollack Fish scientific experiments have shown that the lateral line also used for schooling behavior.
Lateral lines are usually visible as faint lines the length of each side of the area around Gill cover to the area near the tail. Sometimes parts of the lateral line changed to electro-receptors (biological ability to receive and use electrical impulses) that organs used to detect electrical impulses.
How sidelines Works:
There are receptors in the line, called neuromasts, each consisting of a group of hair cells, these hair cells surrounded by an excellent Cupula (an agency that gives an animal a sense of balance). Neuromasts may occur singly, in small groups called pit organs, or in rows in the grooves or channels when they are called lateral line system. The lateral line system running along the sides of the body upside down, where it is divided into three branches, two to the snout and lower jaw. These neuromasts are usually at the bottom of a pit or groove in the fish is large enough to be visible.
Rays and sharks usually have lateral-line canals where neuromasts are not directly exposed to the environment, but communicates with it via canal pores. Hair cells in the lateral line similar to the hair cells in the inner ear and other vertebrates (eg Cupula in humans, where hair cells in Cupula sense rotational acceleration), indicating that the lateral line and inner ear share a common origin. Some active fish tend to be more consistent to swim in the canal neuromasts than on the surface and lateral line will be further pectoral fins, the sound generated by fin movements.
The lateral line system, which many fish are sensitive to differences in water pressure. These differences are likely due to changes in depth or currents and waves caused by approaching objects. When the pressure of gelatin capsules waves neuromasts reason to move, bend the attached hair, the frequency of nerve impulses either increased or decreased depending on the direction of bending. A swimming fish is a shock wave in water, which can be detected at the sidelines of other fish. It also contains a bow wave for himself, the pressure is higher than the flood flow along the sides. These near-field variations recorded by its own lateral line system. When they are approaching an object like a stone or glass wall of a tank, the pressure waves around his body deformed, and these changes swiftly discovered by lateral line system, so the fish to turn or other measures. Because sound waves are waves of pressure, the lateral line system is also able to detect very low frequencies around 100 Hz or less.
An adjustment of the pressure-sensitive systems is reflected in the revised groups of neuromasts called ampulla of Lorenzini (special sensing organs, forming a network of jelly-filled channels), found in sharks, skates and a pair of bony fishes. The ampulla of Lorenzini are capable of electrical charges or fields in the water to discover. Most animals, including humans, provides a DC (direct current) field and in seawater. This is probably due to voltage differences between the body fluids and seawater and between different parts of the body. An AC field is also created by muscle contractions. A wound, even a scratch, can electric fields.
Diseases of the sideline:
Often on the sideline in fish (especially marine) you get infections from water or degraded conditions.
Vitamin deficiencies such as vitamin C and vitamin B complex may be a cause of degeneration. A proper diet of foods high in these vitamins found in Spirulina algae will help in this matter.
Good lighting is a second (or lack thereof) is another parameter for a healthy sideline in fish. Full spectrum lighting such as a combination of 10,000 K or 20,000 K and actinic light (UVA) light will help. The idea is that full spectrum lighting helps the assimilation of certain vitamins, like humans and vitamin D.
A non-grounded aquarium electric fields and degraded both involved lateral line in fish. You can test this by using a pocket multi-meter on AC volts with a probe into the wall and land a probe in the water. To solve this, you can wire your aquarium tank or electrical equipment to a ground in the wall, or simply by running a thread in a nail or spike driven into the ground outside your home. As a direct connection to the tank, I recommend using a titanium probe in the aquarium.

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