How do you identify a Heterobranchus?
Description. The head of Heterobranchus bidorsalis is shaped like an oval and has a rectangular dorsum. The snout is round and the eyes are lateral. The frontal fontanelle is long and narrow while the occipital fontanelle is relatively long and is shaped like an oval.
How can you tell Heterobranchus Longifilis?
Diagnosis: length of rayed dorsal fin 27-36% standard length; 26-35 dorsal-fin rays; length of adipose fin 24-34% standard length; width of vomerine tooth plate 25.0-32.2%, and width of premaxillary tooth plate 29.5-36.9% head length (Ref. 57129, 81644).
What is the common name of Heterobranchus?
|Common Name||Used in||Type|
Will hybrid catfish reproduce?
The hybrid catfish, however, is a cross between two different species that do not mate with each other naturally. Hybrid fry production involves hormone-assisted reproduction. The female channel catfish is given a hormone injection, which induces her to ovulate—release eggs.
How fast do hybrid catfish grow?
Hybrid blue catfish also grow fast and big so you don’t need to spend years waiting to catch these fish. In fact, our hybrid blue catfish grow at least 30 percent faster than any other catfish species. This means that with managed feeding, a fingerling may weigh up to 5 pounds after just one year.
How do you identify Claria?
Clarias species are recognized by their long-based dorsal and anal fins, which give them a rather eel-like appearance. These fish have slender bodies, a flat, bony head, and a broad, terminal mouth with four pairs of barbels. They also have a large, accessory breathing organ composed of modified gill arches.
What is the common name of Heterobranchus longifilis?
|Cat-eLog Data Sheet|
|Scientific Name||Heterobranchus longifilis Valenciennes, 1840|
|Common Names||Vundu Vundu-malle (Denmark)|
|Type Locality||Nile River, Egypt.|
|Synonym(s)||Clarias loangwensis, Heterobranchus laticeps, Heterobranchus platycephalus|
What is the generic name of tilapia?
|Principal commercial tilapia species|
|Common name||Scientific name||Trophic level|
|Nile tilapia||Oreochromis niloticus (Linnaeus, 1758)||2.0|
|Blue tilapia||– Oreochromis aureus (Steindachner, 1864)||2.1|
|Nile tilapia + blue tilapia hybrid|
What is a hybrid catfish?
For decades, it’s been known that hybrid catfish—a cross of the fast-growing channel catfish with its close relative, the slower growing and larger blue catfish—generally have better growth, higher survival, and better meat yield than either channel or blue catfish.
How many months catfish grow?
For any farmer to benefit from catfish maturity, he or she must wait. However, some catfish species mature earlier, say 4 months, while others mature late (5 months and above).
How do you make catfish grow faster?
Top tips for improving African catfish farming
- Mixing locally-sourced ingredients for catfish feed can help boost profit margins.
- Catfish farmers must keep track of pH, dissolved oxygen and water quality to ensure fish are healthy.
- Hybrid catfish are resilient, mature quickly and have a high growth rate.
How long does it take hybrid catfish to grow?
Basically, some breeds of catfish are better when raising big size fishes than others. For instance, heteroclarias, otherwise called hybrid by some farmers, can grow to 3kg in six months — all things being equal.
Which catfish grows fastest?
The channel cat is possibly the fastest-growing catfish species in the world. And it’s one of the best protein converters: 1 pound of catfish for every 2 pounds of feed (compared to 7:1 for beef and 4:1 for pork).
Can hybrid catfish reproduce?
What is the English name of tilapia?
Tilapia (/tɪˈlɑːpiə/ tih-LAH-pee-ə) is the common name for nearly a hundred species of cichlid fish from the coelotilapine, coptodonine, heterotilapine, oreochromine, pelmatolapiine, and tilapiine tribes (formerly all were “Tilapiini”), with the economically most important species placed in the Coptodonini and …
Is Heterobranchus Clarias paraphyletic?
Clarias has been found to be paraphyletic. A species of Heterobranchus ( H. longifilis) clusters deeply inside the Clarias group. They are found in inland waters throughout much of the Old World, and are one of the most widespread catfish genera in the world.
Where did Heterobranchus come from?
Geoffroy Saint-Hilaire, 1809 6, see text. Heterobranchus is a genus of airbreathing catfishes native to Africa. However, H. palaeindicus, the only known extinct species of the genus, was discovered in the Siwalik Hills, India, dating to the Lower Pliocene.
What is the scientific name of Clarias?
Clarias is a genus of catfishes ( order Siluriformes) of the family Clariidae, the airbreathing catfishes. The name is derived from the Greek chlaros, which means lively, in reference to the ability of the fish to live for a long time out of water. Clarias has been found to be paraphyletic.
What kind of catfish is Clarias Microstomus?
” Clarias microstomus, a New Species of Clariid Catfish from Eastern Borneo (Teleostei: Siluriformes)” (PDF). Zoological Studies. 40 (2): 158–162.