Petromyzon is a fish-like aquatic animal, they spend most of the time in marine water but at a certain phase of time, they migrate in freshwater for reproduction. In the perspective of economic importance, the lamprey has a specific role in the food chain. In economics, the lamprey has both positive impacts as well as a negative impact, specially lamprey has a great negative impact on fish culture. On another hand lamprey also have some great economic importance, we will discuss all types of impact on economics.
Table of Contents
Positive Impact of Lamprey on Economics:
Used as Food:
On external appearance Lamprey have similarity with the fishes, so previously it was considered as fish and the local people also consider them as fish. Lamprey is available in almost all areas of the world, freshwater lamprey and sea lamprey both are available in almost all parts of the world.
The local people take them as fish so lamprey may be considered as a source of food. The muscular flesh makes them suitable for eating, in some regions like Europe and America Lamprey is used as food.
Now at present time, the demand for the growing population is a great challenge to supply a sufficient amount of food to all regions of the world. In this scenario, every source of food should accept without any hesitation.
Used as Bait:
When we try to catch larger fishes we generally use different types of bait for the fish so that the fish fall on our trap. For capturing large fish we use generally use small fish or other animals as bait. The development of lamprey involves a small fish like the transparent Ammocoet larval stage. The small transparent Ammocoet larva function as great bait for the larger fishes.
Negative Impact of Petromyzon on Economy:
Danger For Fish Population:
The Ammocoet larva of Petromyzon are filter feeders, they live near the sea bottom and feed on the microscopic organisms. But adult Petromyzon is semiparasitic on the larger fishes, they remain attached to the fish body and live as external parasites.
Adult Petromyzon has specialized mouth apparatus for attaching with the prey fishes. On the ventral side of the head in Petromyzon have the mouth, the buccal funnel is cup-shaped and the circular muscle present in the buccal cavity help to attach with the body of large fishes.
The buccal funnel has several denticles arranged in a radial pattern, the rasping tongue also has teeth. When lamprey attaches to the body of fish, the rasping tongue cuts the flesh of the fish and feeds on the flesh of the fish. But when the injured place on the fish body converts into would then it becomes sometimes dangerous for the victim fish.
The injured place can be infected and they fall in different types of diseases, especially it becomes more hazardous if the Lamprey make the wound in the abdominal area of victim fish. Sometimes the wound becomes fatal for the victim fish, if the fish do not die yet they are prone to suffer from different types of infectious diseases.
The wound makes the fish unsuitable for the market so the Lamprey is very harmful to fish culture. If lamprey popular grows more in any aquatic system, the fish populations get affected badly by the parasitic activity of the Lamprey population.
As lamprey is harmful to fish culture, so different approach is used to restrict the growth of the lamprey population. Some most used approaches for controlling the lamprey population are, trapping and preventing their spawning. Adult lamprey when become sexually mature they migrate to fresh water for breeding.
So if we can prevent their migration from sea to freshwater then we can control their populations effectively. There are also different methods to control their populations like applying electric barriers and using some poisonous chemicals but these are not effective as other methods.
Detailed Study On
Nervous System and Excretory System of Petromyzon
Respiratory System and Circulatory System of Petromyzon
Digestive System and Feeding Mechanism of Petromyzon
Anatomy of Petromyzon (Lamprey)
External Morphology of Petromyzon
Habit and Habitat of Petromyzon(Lamprey)
Classification of Class Ostracodermi
Phylogeny of Subphylum Vertebrata
An Overview of Classification in Subphylum Vertebrata
Subphylum Vertebrata and its Diversity
Cephalochordata Characteristics Features Classification Examples and Diagram
Urochordata Classification Morphology Characteristic Features
Characteristics Features of Hemichordata
General Comparison of Hemichordata Urochordata and Cephalochordata
Comparative Study of Digestive System in Hemichordata Cephaochordata and Urochordata
Hi Everyone!!! Welcome to Imaluop. Imaluop always try to learn some new and he want to share to other people. Here we will try to learn various topics on Science, specially on Biological Sciences.
