What are the characteristics of oreochromis Niloticus?
Identification: A commonly used name is Tilapia nilotica….
| Blue Tilapia | Nile Tilapia | |
|---|---|---|
| Total dorsal fin rays | 27-30 (mode 28) | 29-31 (mode 30) |
| Banding on caudal fin | No distinct bands/stripes | Distinct, regular dark stripes |
| Male breeding coloration | Metallic blue | Red |
| Dorsal fin margin | Vermillion | Dark grey or black |
What are the characteristics of Nile tilapia?
The Nile tilapia is a member of the cichlid and tilapia family. It has a deep-bodied, compressed shape. This species is bronze to brownish-gray dorsally and laterally, and white ventrically. It has a truncated caudal fin that has many thin black bands and a pinkish-red posterior margin.
What are the adaptive features of oreochromis Niloticus?
Nile Tilapia appear to be able to effectively adapt to the intake of carbohydrates, as reflected by: (i) the weak postprandial hyperglycemia (5.3–6.1 mM), (ii) the higher level of hepatic glycogen, (iii) the higher glycolytic pyruvate kinase enzyme in muscle (mRNA level and activity) and (iv) the inhibition of the …
What is the body shape of Nile tilapia?
oval
Body shape generally laterally compressed to oval and deep, though variable depending on the environment (Figure 1). D XVI-XVIII, 12-14, A III, 9-11. Lateral line interrupted with 30-34 cycloid scales. Mouth terminal.
What are the external features of tilapia fish?
Physical characteristics Tilapia are shaped much like sunfish or crappie but can be easily identified by an interrupted lateral line characteristic of the Cichlid family of fishes. They are laterally compressed and deep-bodied with long dorsal fins. The forward portion of the dorsal fin is heavily spined.
What are the classification of tilapia fish?
Ray-finned fishes
Speckled tilapias/Class
What is the color of Nile tilapia?
Wild, natural-type Nile tilapias are brownish or grayish overall, often with indistinct banding on their body, and the tail is vertically striped. When breeding, males become reddish, especially on their fins. Although commonly confused with the blue tilapia (O.
What is the local name of oreochromis Niloticus?
Nile tilapia
The Nile tilapia (Oreochromis niloticus) is a species of tilapia, a cichlid fish native to the northern half of Africa and the Levante area, including Palestine, and Lebanon. Numerous introduced populations exist outside its natural range. It is also commercially known as mango fish, nilotica, or boulti.
What type of caudal fin does Nile tilapia have?
The main cultured species of tilapia usually can be distinguished by different banding patterns on the caudal fin. Nile tilapia have strong vertical bands, Blue tilapia have interrupted bands, and Mozambique tilapia have weak or no bands on the caudal fin. Male Mozambique tilapia also have upturned snouts.
What are the external features of a fish?
External Anatomy Common external anatomical features of fish include: dorsal fin, anal fin, caudal fin, pectoral fins, ventral fins, gills, lateral line, nares, mouth, scales, and body shape.
What are the characteristics of catfish?
Physical characteristics Like all native North American catfishes, a channel catfish has a body that is cylindrical in cross-section, and lacks scales. Fins are soft-rayed except for the dorsal and pectoral fins which have sharp, hard spines that can inflict a nasty, painful wound if a catfish is handled carelessly.