Labeo Fish

A Labeo fish is from a Labeo genus, where the word ‘Labeo’ is a Latin word, which means the one who has large lips,  and these species belong to the carp family Cyprinidae. A freshwater Labeo fish is found in the tropics and subtropics of Asia and Africa.

It contains the common labeos in the subfamily Labeoninae, which may not be a legitimate gathering, be that as it may, and is commonly recognized for the Cyprininae as clan Labeonini. In the event that the Labeoninae are acknowledged as particular, Labeonini is the name of the clan in this subfamily to which the labeos have a place. In the event that the Labeonini are viewed as a clan of the Cyprininae, the labeos are positioned to subtribe Labeoina.

These species comprise a scientific name, classification, subspecies, and various kinds, which we will discuss on this page.

Also, they comprise an ecology, feeding and living behaviour, range, distribution, and habitat, which also we will discuss along with the interesting Labeo fish facts.

What is a Labeo Fish?

Labeo, any of various types of African and Asian freshwater fishes having a place with the genus Labeo in the carp family, Cyprinidae. These fishes have a thick-lipped, sucking mouth on the underside of the head and two to four little mouth barbels. They are bottom dwellers and eat green growth and little creatures. The rohu (L. rohita) of India is regarded for food and sport and is refined in lakes. A few African labeos are additionally esteemed game fishes, among them L. altivelis, a focal and southern African species weighing up to 3 kg (6.5 pounds). 

Two Asian types of Labeo are recognizable to home aquarists: the red-followed dark "shark" (L. bicolor) and the dark "shark". The previous, around 12 cm (5 inches) long, is dark with a radiant red tail; the last is thoroughly dark and develops to around 30 cm in aquariums. The fishes are classified as "sharks" for their appearance.

Now, let us discuss the Labeo Classification in detail.

Labeo Scientific Classification

Currently Recognized Labeo Fish Species

Below is the list of recognized Labeo fish species along with their discoverer and the year of discovery:

There is a kind of Labeo fish, i.e., Labeo Rohita, which we will discuss in detail on this page.

About Labeo Rohita

The rohu, or rui, or a roho labeo also known as Labeo rohita is a fish species of the carp family, found in rivers in South Asia, which is a large omnivore and an extensively used species in aquaculture.

Labeo Rohita Physical Features

Body reciprocally even, tolerably stretch, its dorsal profile more angled than the ventral profile; body with cycloid scales, head without scale; nose genuinely discouraged, projecting past mouth, without the parallel flap; eyes dorsolateral in position, not apparent from outside of head; mouth little and second rate; lips thick and bordered with an unmistakable inward crease to every lip, lobate or whole; a couple of little maxillary barbels hid in the horizontal score; no teeth on jaws; pharyngeal teeth in three columns; upper jaw not reaching out to the front edge of eye; basic (unbranched) dorsal balance fins three or four, expanded dorsal blade ranges 12 to 14.

Besides this, the dorsal fins are embedded halfway between nose tip and base of caudal fin; pectoral and pelvic fins horizontally embedded; pectoral balance without a rigid spine; caudal balance profoundly forked; lower lip typically joined to isthmus by a limited or wide scaffold; pre-dorsal scale 12-16; sidelong line particular, complete and running along the middle line of the caudal peduncle; sidelong line scales 40 to 44; horizontal cross over scale-lines six or six and a half between parallel line and pelvic balance base; nose not shorten, with no horizontal projection; shading pale blue on back, shiny on flanks and midsection. 

Labeo Rohita Historical Background

Rohu (Labeo rohita) is the most significant among the three Indian significant carp species utilized in carp polyculture frameworks. This effortless Indo-Gangetic riverine species is the regular occupant of the riverine arrangement of northern and focal India, and the streams of Pakistan, Bangladesh and Myanmar. In India, it has been relocated into practically all riverine frameworks including the freshwaters of Andaman, where its populace has effectively settled. The species has additionally been presented in numerous different nations, including Sri Lanka, the previous USSR, Japan, China, the Philippines, Malaysia, Nepal and a few nations of Africa. The conventional culture of this carp returns many years in the little lakes of the eastern Indian states. 

However, the information on its way of life is accessible just from the early piece of the twentieth century. The similarity of rohu with different carps like (catla) and mrigal (Cirrhinus mrigala) made it an optimal possibility for carp polyculture frameworks. While riverine assortment of seed was exclusively meeting the prerequisite for culture of the species until the primary portion of the twentieth century, the achievement in actuated reproducing in 1957 and the guaranteed seed supply from that point was the main consideration for the advancement of its way of life in freshwater lakes and tanks. Its high development potential, combined with high buyer inclination, have set up rohu as the main freshwater species refined in India, Bangladesh and other neighbouring nations in the district. Thinking about its significance in the way of life framework, accentuation has additionally been given to its hereditary improvement through particular reproducing in India.

Labeo Rohita Habitat and Ecology

In its initial life stages rohu incline toward zooplankton, essentially made out of rotifers and cladocerans, with phytoplankton framing the crisis food. In the fingerling stage, there is a solid positive choice for all the zooplanktonic organic entities and for some more modest phytoplankters like desmids, phytoflagellates and algal spores. Then again, grown-ups show a solid positive determination for the vast majority of the phytoplankton. In the adolescent and grown-up stages, rohu is basically a herbivorous segment feeder, favouring green growth and lowered vegetation. 

Besides, the event of rotted natural matter and sand and mud in its gut recommends its base taking care of propensity. The snacking kind of mouth with delicate bordered lips, sharp forefronts and nonappearance of teeth in the buccopharyngeal district assists the fish with benefiting from delicate oceanic vegetation which doesn’t need seizure and squashing. The changed meagre and hair-like gill rakers likewise propose that the fish feed on minute tiny fish through sieving water. 

In lakes, the fry and fingerlings display tutoring conduct mostly for taking care of; nonetheless, this propensity isn't seen in grown-ups. 

Labeo Rohita Ecology

The minimum age at first maturity for both genders is two years, while complete development is reached following four years in guys and five years in females. In nature, producing happens in the shallow and minor spaces of overwhelmed waterways. The bringing forth period of rohu by and large concurs with the southwest rainstorm, reaching out from April to September. In bondage with appropriate taking care of the species achieves development towards the finish of the second year. In any case, reproducing doesn't happen in such lentic lake conditions; in this way initiated rearing becomes important. The fruitfulness changes from 226 000 to 2 794 000, contingent on fish size and ovary weight; on normal it goes from 200 000-300 000 eggs/kg BW. Rohu is a polygamous fish and furthermore is by all accounts wanton. The ideal temperature for production is 22-31 °C. 

Geographical Distribution of a Labeo Fish

Labeo rohita is found in tropical and tem­perate districts. It is the commonest cap in the fields of India, besides in the south. It is additionally not unexpected in Bangladesh and Myanmar (Burma). This specific fish is concentrated as a sort of example of hard fish in numerous Indian Universities.

Labeo Rohita Fish Producing Countries

Rohu is the chief species that are raised in carp polyculture frameworks along with the other two Indian significant carps viz., catla, catla and mrigal, Cirrhinus mrigala. Because of its more extensive taking care of speciality, which reaches out from segment to base, rohu is normally supplied at moderately more elevated levels than the other two species. In India, the species is additionally refined inside composite carp culture frameworks joining each of the three Indian significant carps, just like a common carp (Cyprinus carpio) and two Chinese carp includes a silver carp (Hypophthalmichthys molitrix) and a grass carp (Ctenopharyngodon idellus). 

In any case, the species of rohu, even inside this six-species blend, is held at 35-40 percent, like that in the three-species polyculture framework. Additionally, the higher buyer inclination and market interest for rohu during late years have prompted the act of two-species culture with catla. The last kind of hydroponics is happening in more than 100 000 ha of lakes in the Koleru lake area of Andhra Pradesh, India, in which rohu frames in excess of 70% of the stock. 

Among the three Indian significant carps, rohu is the most significant, are additionally the predominant species refined in various countries, like Bangladesh, Pakistan, Myanmar, Lao People's Democratic Republic, Viet Nam, and Nepal. In this group of countries, silver carp, grass carp, and normal carp are the chief species bred with the three Indian significant carps in hydroponics.

Labeo Rohita Production Statistics

The below graph describes the Global Aquaculture Labeo Rohita Production:

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Labeo Fish Facts

Below are the interesting Labeo fish facts:

• Labeos are bottom feeders that prefer to eat algae and small animals. The rohu (L. rohita), an Indian Labeo species is valued for food and sport cultured in ponds.

• Rohu gains maturity at the end of the second year and is polygamous (having more than one mate). The sex play lasts around 5-10 seconds.