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Goldfish. Goldfish, like all cyprinids, are egg-layers. They usually start breeding after a significant temperature change, often in spring. Males chase females, prompting them to release their eggs by bumping and nudging them. As the female goldfish spawns her eggs, the male goldfish stays close behind fertilizing them.
Goldfish are gregarious, displaying schooling behavior, as well as displaying the same types of feeding behaviors. Goldfish have learned behaviors, both as groups and as individuals, that stem from native carp behavior. They are a generalist species with varied feeding, breeding, and predator avoidance behaviors that contribute to their success ...
The common goldfish is a breed of goldfish and a family of Cyprinidae in the order cypriniformes. Goldfish are descendants of wild carp from East Asia. [ 1 ] Most varieties of fancy goldfish were derived from this simple breed. [ 2 ][better source needed] Common goldfish come in a variety of colors including red, orange, red/white, white/black ...
Pair bond. Northern gannet pair. In biology, a pair bond is the strong affinity that develops in some species between a mating pair, often leading to the production and rearing of young and potentially a lifelong bond. Pair-bonding is a term coined in the 1940s [1] that is frequently used in sociobiology and evolutionary biology circles.
The development of schooling behavior was probably associated with an increased quality of perception, predatory lifestyle and size sorting mechanisms to avoid cannibalism. [36] In filter-feeding ancestors, before vision and the octavolateralis system (OLS) had developed, the risk of predation would have been limited and mainly due to ...
Shubunkin (Japanese: 朱文金, Hepburn: Shubunkin, ' vermilion brocade ') are a hardy, single-tailed goldfish with nacreous scales and a pattern known as calico. [1] They are of Japanese origin. [2][3] The Shubunkin was created by Akiyama Yoshigoro (ja:秋山吉五郎) by crossing Calico telescope eye with a Comet goldfish and a Common goldfish.
Spawn (biology) 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.
Nuptial tubercles. Nuptial tubercles on stone-roller, Campostoma anomalum. Nuptial tubercles or breeding tubercles (also called pearl organs or nuptial efflorescence) are noticeable skin roughness or horny nodules that form on male fish during breeding. They are made of keratin, the same material as hair, hooves, and fingernails.