What is the life cycle of milkfish?
Seven stages in the life history of milkfish Chanos chanos are suggested: embryonic, yolksac larval, larval, postlarval, juvenile, sub-adult and adult stages. These were based on morphological differences and on their particular ecological requirements.
What is reproduction of milkfish?
Milkfish may spawn more than once a year. Spawning usually takes place at night and may be influenced by the lunar cycle. Milkfish breeding may occur throughout much of the year, depending on latitude. Range number of offspring 0.5 million eggs to 6 million eggs. Range time to hatching 20 to 35 hours.
What is the scientific of milkfish?
milkfish, also called bandeng, or bangos, (Chanos chanos), silvery marine food fish that is the only living member of the family Chanidae (order Gonorhynchiformes). Fossils of this family date from as far back as the Cretaceous Period (145.5 million to 65.5 million years ago).
What is the classification of bangus?
What is the shape of milkfish?
Milkfish have a spindle-like shape that is moderately compressed, smooth and streamlined. Its body color is silvery on the belly and sides, grading to olive green or blue on the back.
How can you tell a male from a female milkfish?
However, the anal region of the mature milkfish exhibits discernible anatomical differences in the male and female. In the males, there are 2 main openings visible externally. These are the anterior anus and the posterior urogenital opening at the tip of the urogenital papilla (Fig. 1 and Plate 1).
What is the body parts of milkfish?
Identification. The Milkfish is a schooling species that has a small toothless mouth and a large deeply-forked caudal fin. The eyes are covered with a thick layer of gelatinous tissue. The body is silvery blue-green above, silvery on sides and white below.
What are the 7 levels of classification of milkfish?
- Phylum: Chordata.
- Subphylum: Vertebrata.
- Class: Actinopterygii.
- Order: Gonorhynchiformes.
- Family: Chanidae.
- Genus: Chanos.
- Species: Chanos chanos.
Why is milkfish called milkfish?
Why are they called milkfish? These fish have white, flaky flesh that is tender when cooked. After being steamed, pan-fried, or seared, the meat has a color closely resembling milk. As a result, locals began to call these creatures milkfish.
What is the habitat of milkfish?
Habitat and reproduction Milkfish are euryhaline, stenothermic fish. They occur and can be cultured in freshwater, brackishwater, and marine waters but only in the tropical and subtropical Indian and Pacific oceans (rare in eastern Pacific from southern California to Peru) where temperature is >20°C.
What is the body temperature of milkfish?
Water temperature in milkfish culture systems typically varies between 24 °C and 33 °C, with limits at 15 °C and 40 °C during cold snaps or heat waves, respectively, depending on the geographic region (Bagarinao, 1994; Martinez et al., 2006; Verceles et al., 2000).
How many eggs does female milkfish produce?
Milkfish need brackish, i.e., salty, water for reproduction and spawning. Females typically release up to five million eggs at night during the warm months but can occur throughout the year.
What is the lifespan of a milkfish?
Not much is known about natural mortality rates of adult milkfish, but the shortest recorded lifespan of milkfish is 3 years and the maximum lifespan is 15 years. Most mortality occurs at the egg and larval stages.
How long does it take for milkfish larvae to grow?
Milkfish larvae go through a series of complex morphological, physiological, and behavioral stages, which last about 2 to 4 weeks, before becoming juveniles. Younger larvae occur in water depths of 20 to 30 m, while older larvae occur near the water’s surface.
What is the scientific name of the milkfish?
Bagarinao, T. U. (1991). Biology of milkfish (Chanos chanos Forsskal). Tigbauan, Iloilo, Philippines: SEAFDEC Aquaculture Department
What is the best book on the biology of milkfish?
Note: The author recommends Ecology and Farming of Milkfish for an updated version of this book. Bagarinao, T. U. (1991). Biology of milkfish (Chanos chanos Forsskal). Tigbauan, Iloilo, Philippines: SEAFDEC Aquaculture Department