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The convict cichlid (Amatitlania nigrofasciata) is a fish species from the family Cichlidae, native to Central America, [3] also known as the zebra cichlid. [4] Convict cichlids are popular aquarium fish [ 3 ] and have also been the subject of numerous studies on fish behaviour.
Amatitlania coatepeque, the Lago Coatepeque convict cichlid, is a freshwater fish species endemic to El Salvador. [1] The species was first identified in 1924 and takes its name from Lake Coatepeque in the interior highlands of western El Salvador.
The convict cichlid has sometimes been placed within the genus Cryptoheros as well, but is now considered a member of the genus Amatitlania. [3] [4] Several other species such as Amatitlania septemfasciata and Amatitlania sajica had also once been included within Cryptoheros. [2] FishBase currently recognizes four species in this genus: [1]
The convict julie (Julidochromis regani) is a cichlid species in the subfamily Pseudocrenilabrinae family endemic to Lake Tanganyika. Hence it is found in Burundi, the Democratic Republic of the Congo, Tanzania, and Zambia. The fish is named after Charles Tate Regan. [2] This species is closely related to Julidochromis marlieri.
Many species of cichlids use pit spawning, but one of the less commonly studied species that exhibits this behavior is the Neotropical Cichlasoma dimerus. This fish is a substrate breeder that displays biparental care after the fry have hatched from their eggs.
There are two families within the Cichliformes; the convict blennies are a small family consisting of a single genus and two species, while the cichlids are one of the largest vertebrate families with over 202 genera and more than 1700 species. It is molecular data which placed the two seemingly dissimilar families in the same taxon.
In the paper ‘Gender differences in aggressive behavior in convict cichlids’ Gareth Arnott and Robert W. Elwood investigated if gender related variations in aggression are seen in convict cichlids (Amatitlania nigrofasciata). To see gender-related changes in aggression, they tested if intersexual agonistic events take place between isolated ...
In convict cichlid fish, males are more likely to desert when there is a female-biased sex ratio, as males have a higher chance of remating and increasing reproductive success. Furthermore, probability of male desertion in this particular species is also increased where there is low predation (high predation leads to biparental care for ...