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The oscar (Astronotus ocellatus) is a species of fish from the cichlid family known under a variety of common names, including tiger oscar, velvet cichlid, and marble cichlid. [2] In tropical South America, where the species naturally resides, A. ocellatus specimens are often found for sale as a food fish in the local markets.
Inbreeding in fish is the mating of closely related individuals, leading to an increase in homozygosity. Repeated inbreeding generally leads to morphological abnormalities and a reduction in fitness in the offspring. In the wild, fish have a number of ways to avoid inbreeding, both before and after copulation.
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 ...
Unlike its close relative Parachromis managuensis, P. motaguensis isn't as commonly encountered in the aquarium trade. Although their visual appearance is very similar, the motaguensis (traded by many names, including Red tiger, Red dragon cichlid) displays an array of bright red dots, (hence the variants of the common name), which run along the flanks to the base of the caudal fin.
The food-borne parasite Anisakis is a genus of nematodes known to be present in intermediate host salt-water fish, anadromous fish that travel from oceans to rivers to breed, and squid. [ 7 ] [ 18 ] Anisakis are directly infective to humans when infected fish or squid is consumed raw or slightly processed, causing a condition called anisakiasis .
Hydrocynus vittatus, the African tigerfish, tiervis or ngwesh [3] is a predatory freshwater fish distributed throughout much of Africa. This fish is generally a piscivore but it has been observed leaping out of the water and catching barn swallows in flight.
Apr. 27—Warning signs were posted today after the sighting of a large tiger shark at an East Oahu beach park. A non-aggressive 10- to 12-foot tiger shark was seen 50 yards offshore at Waimanalo ...
A red oscar that has died while showing HLLE Head and lateral line erosion , ( HLLE ) or hole-in-the-head ( HITH ) is a disease in fish. Chronic ulcerative dermatopathy or chronic erosive dermatopathy are symptoms of similar conditions with different etiology.