Parental male and female convict cichlids assess and respond to threats differently depending on intruder species

Breukelen, Natalie April van; Santangelo, Nicholas

doi:10.1016/j.beproc.2021.104396

Cited by 4 publications

(3 citation statements)

References 35 publications

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“…Males, in general, spent less time with their offspring, chased intruders less often, and allowed intruders to move closer to the offspring. Given that males are likely physiologically more capable of mating again sooner than their current mates (Wisenden 1994), it is consistent that they should attempt to reduce their parental investment and express lower levels of parental care than females (Trivers 1972). Males spent significantly more time away from their fry than their female partners did, and the Fig.…”

Section: Discussionmentioning

confidence: 99%

“…There is much less information on the extent to which parents coordinate their parental activities. However, van Bruekelen and Santangelo (2021) presented different species of offspring predators to free-swimming biparental Convict Cichlid ( Amatitlania nigrofasciata ) parents and observed that while both sexes did attack the same species, male and female parents reserved their most intense attacks for different species of intruders. This suggests that biparental fishes may be coordinating their defensive behavior and performing similar tasks differently when contributing to the care of their young.…”

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confidence: 99%

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Do Monogamous Male and Female Texas Cichlid Parents Defend Their Offspring Similarly?

Snekser

Al-Shaer

Bloch

et al. 2023

Western North American Naturalist

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Do Monogamous Male and Female Texas Cichlid Parents Defend Their Offspring Similarly?

Snekser

Al-Shaer

Bloch

et al. 2023

Western North American Naturalist

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“…Parental care behaviour has obvious characteristics of accelerated swimming and aggression, which consumes additional energy in terms of parental body weight (Balshine‐Earn, 1995), development of sexual ornaments (Frischknecht, 1993), protection of offspring (Klug & Bonsall, 2010), immune response (Beemelmanns & Roth, 2016) and reproductive activity (Jørgensen et al, 2011). In studies of parental care behaviour in fish, the described aggressive behaviours include biting, mouth holding, charging, displaying, chasing, fin erection and approaching (Anderson et al, 2016; Foster et al, 2016; van Breukelen & Santangelo, 2021). In order to qualitatively describe the intensity level of the motion of fish, it is necessary to extract the motion characteristics of fish, such as trajectory, velocity, acceleration and angular velocity.…”

Section: Introductionmentioning

confidence: 99%

The behavioural pattern and variation in parental care of Aequidens rivulatus

Cai

Wang

et al. 2021

Aquaculture Research

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The study of fish parental care is important for understanding the social structure and improving the survival rate and welfare of fish populations in aquaculture. However, little is known about the parental care of fish at present, especially their attack patterns, behaviour patterns and spatiotemporal statistical characteristics. In this study, Aequidens rivulatus was taken as the research object and the parental care processes were recorded including the attacker, the attackee, and the start and end attack time. Then, the attack pattern, behaviour pattern and their changes over time were further analysed. The results were as follows: (1) no biting occurred most frequently (58%) and had the highest velocity and acceleration during the parental care period compared with lateral biting and frontal biting. (2) Male attacked intruder the most (52%) with the lowest velocity and acceleration, while female attacked male the least (7%) with the highest acceleration. (3) There was a shift in the role of protection of larvae from females to males. This shift occurred approximately 30 h after the first parental care action. These results suggested that A. rivulatus display a high degree of parental care and an obvious pattern of young protection when facing intruder, which is an important consideration when designing breeding and holding facilities.

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Invasive Cichlids Display Higher Aggression During Nest Defence Compared to the Native Mexican Mojarra

Franco,

Arce

2024

Ecology of Freshwater Fish

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Nest defence is one component of parental investment by which individuals can increase the survival of their offspring. Aggressive behaviours and the time spent protecting nests are determining factors in the reproductive success of cichlid species. The Mexican mojarra is the only cichlid native to the Balsas River Basin in Mexico. At least four invasive cichlids have been introduced, including the convict cichlid and the spotcheek cichlid. These three species establish their nests in the River and defend them aggressively. We quantified the number of nests, aggressive behaviours and time spent in the nest by parents of the native species and these two invasive species. We expected that the invasive parents would be more aggressive during defence, spent more time protecting the eggs, and would have a higher density of nests. We also explored differences in nest defence between the sexes within each species. We found that invasive cichlids had a greater number of nests than the Mexican mojarra. In the two invasive species, there was no difference between males and females in the time spent in the nest or the number of aggressive behaviours. In contrast, male Mexican mojarras spent less time in the nest and performed fewer aggressive behaviours than their mates. The smaller number of nests and nest defence behaviour of this native species could compromise its reproductive success and population size. This differential nest defence between the Mexican mojarra and the invasive cichlids could have negative implications for the physiology, reproduction, and health of this native cichlid.

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Parental male and female convict cichlids assess and respond to threats differently depending on intruder species

Cited by 4 publications

References 35 publications

Do Monogamous Male and Female Texas Cichlid Parents Defend Their Offspring Similarly?

Do Monogamous Male and Female Texas Cichlid Parents Defend Their Offspring Similarly?

The behavioural pattern and variation in parental care of Aequidens rivulatus

Invasive Cichlids Display Higher Aggression During Nest Defence Compared to the Native Mexican Mojarra

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