scholarly journals Environmental habituation and sexual composition affect juveniles’ shoaling activity in a cichlid fish ( Pelvicachromis taeniatus )

2021 ◽  
Author(s):  
Rieke F. Schons ◽  
Simon Vitt ◽  
Timo Thünken
Keyword(s):  
Cichlid Fish ◽  
Pelvicachromis Taeniatus ◽  
Sexual Composition

scholarly journals Presence of same-sex kin promotes explorative behavior in subadult cichlid fish

2020 ◽  
Vol 31 (3) ◽  
pp. 731-738 ◽  
Author(s):  
Simon Vitt ◽  
Iris Madge Pimentel ◽  
Timo Thünken
Keyword(s):  
Kin Recognition ◽  
Cichlid Fish ◽  
West African ◽  
Kin Discrimination ◽  
Same Sex ◽  
Kin Competition ◽  
Pelvicachromis Taeniatus ◽  
Indirect Fitness ◽  
Males And Females

Abstract While the importance of kin discrimination, that is, kin recognition and subsequent differential treatment of kin and nonkin, is well established for kin-directed cooperation or altruism, the role of kin discrimination in the context of kin competition and kin avoidance is largely unexplored. Theory predicts that individuals avoiding competition with kin should be favored by natural selection due to indirect fitness benefits. Using an experimental approach, we investigated whether the presence of same-sex kin affects avoidance and explorative behavior in subadult Pelvicachromis taeniatus, a West African cichlid fish with strong intrasexual competition in both sexes. Pelvicachromis taeniatus is capable of recognizing kin using phenotype matching and shows kin discrimination in diverse contexts. When exposed to a same-sex conspecific, both males and females tended to interact less with the related opponent. Moreover, individuals explored a novel environment faster after exposure to kin than to nonkin. This effect was more pronounced in females. Individuals avoiding the proximity of same-sex relatives may reduce kin competition over resources such as mating partners or food.

Parental investment in relation to offspring quality in the biparental cichlid fish Pelvicachromis taeniatus

2010 ◽  
Vol 80 (1) ◽  
pp. 69-74 ◽  
Author(s):  
Timo Thünken ◽  
Denis Meuthen ◽  
Theo C.M. Bakker ◽  
Harald Kullmann
Keyword(s):  
Parental Investment ◽  
Cichlid Fish ◽  
Offspring Quality ◽  
Pelvicachromis Taeniatus

Extraordinarily long sperm in the socially monogamous cichlid fish Pelvicachromis taeniatus

2007 ◽  
Vol 94 (6) ◽  
pp. 489-491 ◽  
Author(s):  
Timo Thünken ◽  
Theo C. M. Bakker ◽  
Harald Kullmann
Keyword(s):  
Cichlid Fish ◽  
Pelvicachromis Taeniatus ◽  
Socially Monogamous

Size-dependent use of territorial space by a rock-dwelling cichlid fish

Oecologia ◽  
2007 ◽  
Vol 154 (3) ◽  
pp. 611-621 ◽  
Author(s):  
Jeffrey A. Markert ◽  
Matthew E. Arnegard
Keyword(s):  
Cichlid Fish ◽  
Size Dependent

scholarly journals Metabolic physiology of the Mayan cichlid fish (Mayaheros uropthalmus): Re-examination of classification as an oxyconformer

2019 ◽  
Vol 237 ◽  
pp. 110538 ◽  
Author(s):  
Warren W. Burggren ◽  
Juan Carlos Arriaga-Bernal ◽  
Paola Montserrat Méndez-Arzate ◽  
José Fernando Méndez-Sánchez
Keyword(s):  
Cichlid Fish ◽  
Metabolic Physiology ◽  
Mayan Cichlid
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