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Territorial Behaviour of Juvenile Atlantic Salmon (Salmo Salar L.)
The territories of young salmon appear to be primarily feeding territories, and the behaviour associated with their maintenance is important for optimum growth and survival and for maintaining position for long periods in fast flowing streams.
Variation in the Mating System and Associated Parental Behaviour of Captive and Free-Living Cichlasoma Nigrofasciatum (Pisces, Cichlidae)
Brood defense behaviour by adults in monogamous pairs provided some evidence of division of parental labour, and females with monogamous partners spent more time away from their broods than did deserted females, but only in the ponds did this correspond with reduced feeding by the deserted females.
Foraging on patchily distributed prey by a cichlid fish (Teleostei, Cichlidae): A test of the ideal free distribution theory
Intraspecific brood adoption in convict cichlids : a mutual benefit
It is proposed that intraspecific brood adoption in convict cichlids is mutually beneficial to the adult donors and recipients through the dilution effect and through a differential predation effect.
Breeding territoriality and pair formation in the convict cichlid (Cichlasoma nigrofasciatum; Pisces, Cichlidae)
The results indicate that pair formation begins several days before spawning when the female begins to follow a male and chase other females away from him, and the pair then begins to spend more time in a smaller area where spawning eventually occurs.
Courtship and Spawning Behavior in Smallmouth Bass (Micropterus dolomieui)
Female mate choice and male parental defense behaviour in the cichlid fish Cichlasoma nigrofasciatum
Female Cichlasoma nigrofasciatum presented with three potential spawning partners of different sizes spawned most often near the medium-sized male. When mate choice was restricted to males of two…
Courtship and spawning competition in pink salmon (Oncorhynchus gorbuscha)
Male pink salmon cluster in groups of up to 10 or more around a female as she prepares the substrate for spawning, and the largest male in the group stays closest to the female; the others maintain a size-related hierarchy behind the pair.
Some Aspects of the Schooling Behaviour of Fish
- M. Keenleyside
- Environmental Science
A hypothesis on the nature of the schooling behaviour of fish based on an ethological investigation of schooling is presented, suggesting that with increasing reproductive motivation male Gasterosteus cease schooling and try to hold territories and Females disperse to a limited extent.
Reactions of Juvenile Pacific Salmon to Light
When given a choice between light and dark areas, schools of chum or pink salmon fry remain in the light, sockeye fry prefer the dark and coho fry show no marked preference for either. Newly emerge...