2009
DOI: 10.1590/s0100-879x2009000400009
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Visual communication stimulates reproduction in Nile tilapia, Oreochromis niloticus (L.)

Abstract: Reproductive fish behavior is affected by male-female interactions that stimulate physiological responses such as hormonal release and gonad development. During male-female interactions, visual and chemical communication can modulate fish reproduction. The aim of the present study was to test the effect of visual and chemical male-female interaction on the gonad development and reproductive behavior of the cichlid fish Nile tilapia, Oreochromis niloticus (L.). Fifty-six pairs were studied after being maintaine… Show more

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Cited by 26 publications
(23 citation statements)
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References 31 publications
(34 reference statements)
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“…In another study using the Nile tilapia Oreochromis niloticus, female visual cues alone were also sufficient to increase courtship behaviors and GSI in males (Castro et al, 2009). In our study, rates of courtship behavior by A. burtoni males given visual cues alone, however, werẽ 10-fold lower than when gravid females were in the same compartment and males had access to full sensory information.…”
Section: Discussionmentioning
confidence: 96%
“…In another study using the Nile tilapia Oreochromis niloticus, female visual cues alone were also sufficient to increase courtship behaviors and GSI in males (Castro et al, 2009). In our study, rates of courtship behavior by A. burtoni males given visual cues alone, however, werẽ 10-fold lower than when gravid females were in the same compartment and males had access to full sensory information.…”
Section: Discussionmentioning
confidence: 96%
“…Reduction in long-wavelength sensitivity with ontogeny Mate choice and male-male competition for territory are key processes in the life of Nile tilapia adults, and depend on visual stimulation and reliable visual assessment of the quality of conspecifics (Castro et al, 2009). Nile tilapia evolved in rivers and pools in central and eastern Africa (Lim and Webster, 2006).…”
Section: Ontogenetic Changes In Retinal Circuitrymentioning
confidence: 99%
“…For example, if feed is delivered at times when fish are not motivated to feed, or when they have been disturbed, the feed may not be eaten, reducing feed conversion efficiency and increasing the release of waste into the environment (Chapter 7). In a different context, if adult Nile tilapia (Oreochromis niloticus) are held without visual contact with conspecifics, the mechanisms by which social interactions stimulate gonad development are not activated, the fish display little courtship behaviour and there are few spawning events (Castro et al 2009; Chapter 10).…”
Section: Effects Of the Internal Systems That Control Behaviourmentioning
confidence: 99%