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Spawning triggers allow many fish to synchronize their breeding, making it more probable that individual fish will find a mate. In most cases, if these triggers were not present, male and female fish would not meet at the right stage and the number of offspring would be reduced.
The spotted tilapia (Pelmatolapia mariae [2]), also known as the spotted mangrove cichlid or black mangrove cichlid, is a species of fish of the cichlid family. [3] It is native to fresh and brackish water in West and Central Africa, [3] but has been introduced to other regions where it is considered invasive.
Fish with low inbreeding showed almost twice the aggressive pursuit in defending territory than fish with medium inbreeding, and furthermore had a higher specific growth rate. A significant effect of inbreeding depression on juvenile survival was also found, but only in high-density competitive environments, suggesting that intra-specific ...
The spawn (eggs) of a clownfish. The black spots are the developing eyes. Spawn is the eggs and sperm released or deposited into water by aquatic animals. As a verb, to spawn refers to the process of freely releasing eggs and sperm into a body of water (fresh or marine); the physical act is known as spawning. The vast majority of aquatic and ...
The red-hybrid Nile tilapia is known in the Thai language as pla thapthim (Thai: ปลาทับทิม, pronounced [plaːtʰap̚˦˥.tʰim]), meaning "pomegranate fish" or "ruby fish". [24] This type of tilapia is very popular in Thai cuisine , where it is prepared in a variety of ways.
Consistent supply of fish from aquaculture facilities is an important market requirement. [7] Broodstock conditioning can extend the natural spawning season and thus the supply of juveniles to farms. [7] [8] Supply can be further guaranteed by sourcing from hatcheries in the opposite hemisphere i.e. with opposite seasons. [9] 2. Genetic improvement
Mozambique tilapia, like other fish such as Nile tilapia and trout, are opportunistic omnivores and will feed on algae, plant matter, organic particles, small invertebrates and other fish. [19] Feeding patterns vary depending on which food source is the most abundant and the most accessible at the time.
In some areas Blackchin tilapia can make up to 90% of the fish biomass. They can then spread disease to and out compete native fish. They can then spread disease to and out compete native fish. In Hawaii it is sometimes called the "saltwater tilapia" because it has the ability to survive and possibly even breed in pure seawater.