Effects of food supply on the reproduction of the convict cichlid, Cichlasoma nigrofasciatum

1984 ◽  
Vol 24 (1) ◽  
pp. 91-104 ◽  
Author(s):  
T. J. Townshend ◽  
R. J. Wootton
Keyword(s):  
Food Supply ◽  
Convict Cichlid ◽  
Cichlasoma Nigrofasciatum

Effects of Parent and Offspring Food Rations On Parental Care in the Convict Cichlid Fish (Pisces, Cichlidae)

Behaviour ◽  
1994 ◽  
Vol 129 (1-2) ◽  
pp. 63-77 ◽  
Author(s):  
James D. Kieffer ◽  
Robert J. Lavery
Keyword(s):  
Parental Care ◽  
Environmental Conditions ◽  
Food Supply ◽  
Cichlid Fish ◽  
Food Abundance ◽  
Convict Cichlid ◽  
Cichlasoma Nigrofasciatum ◽  
Convict Cichlids ◽  
More Care

AbstractAnimals may provide more care for their young under certain environmental conditions. For instance, if food is plentiful parents may invest more in the current brood than if food is scarce, assuming that food abundance is correlated with parent and offspring condition. In this experiment, we manipulated food levels (low vs high) for both parents and offspring to determine if parental care is influenced by parental and/or offspring condition in the convict cichlid, Cichlasoma nigrofasciatum. Parents which were fed a higher ration gained weight, whereas parents fed a lower ration lost weight. Similarly, young which were fed a higher ration were significantly larger than young fed a lower ration. Parents which were fed a higher ration defended their brood more vigorously than parents fed a lower ration. Offspring condition had little effect on parental care. Furthermore, females consistently invested more than males. The results show that parental convict cichlids adjust care in response to their own food supply rather than that of their offspring.

Fin digging and leaf lifting by the convict cichlid, Cichlasoma nigrofasciatum: examples of parental food provisioning

1995 ◽  
Vol 49 (3) ◽  
pp. 623-631 ◽  
Author(s):  
Brian D. Wisenden ◽  
Tanya L. Lanfranconi-Izawa ◽  
Miles H.A. Keenleyside
Keyword(s):  
Convict Cichlid ◽  
Food Provisioning ◽  
Cichlasoma Nigrofasciatum

Ontogeny of Melanistic Color Pattern Elements in the Convict Cichlid, Cichlasoma nigrofasciatum

Copeia ◽  
2002 ◽  
Vol 2002 (1) ◽  
pp. 199-203 ◽  
Author(s):  
Simon C. Beeching ◽  
Brent A. Holt ◽  
Michael P. Neiderer
Keyword(s):  
Color Pattern ◽  
Convict Cichlid ◽  
Cichlasoma Nigrofasciatum

Weight asymmetry and sequential assessment in convict cichlid contests

1993 ◽  
Vol 71 (3) ◽  
pp. 475-479 ◽  
Author(s):  
Marten A. Koops ◽  
James W. A. Grant
Keyword(s):  
Weight Ratio ◽  
Assessment Model ◽  
Convict Cichlid ◽  
Cichlasoma Nigrofasciatum ◽  
Convict Cichlids ◽  
Temporal Overlap

We staged contests between pairs of convict cichlids (Cichlasoma nigrofasciatum) that varied in weight ratio (larger/smaller) from 1.02 to 4.86 to test the predictions of the sequential assessment model. As predicted, contests proceeded in a consistent sequence of behaviour (lateral display, biting, mouth wrestling, and circling), the duration of contests was inversely correlated with weight ratio, and the duration of complete phases of behaviour was independent of weight ratio (a phase is complete if the contest escalates to the next behavioural phase). However, there was temporal overlap in the occurrence of different behaviour patterns and variation in the duration of contests that are not explained by the model. Nevertheless, the structure of convict cichlid contests is consistent with the logic of the sequential assessment model.

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