Effects of Melatonin, Serotonin, and Naloxone on Aggression in Isolated Cichlid Fish (<i>Aequidens pulcher</i>)

Munro, A.D.

doi:10.1111/j.1600-079x.1986.tb00748.x

Cited by 60 publications

(51 citation statements)

References 9 publications

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“…ICER plays a key role in circadian melatonin synthesis by repressing the key enzyme that converts serotonin to melatonin [81]. High levels of these neurotransmitters have been associated with increased mating and cooperative behavior and decreased aggressive behavior [82][83][84]. ICER has not yet been well characterized in teleosts but one of our differentially expressed crem transcripts had a significant blast hit to an ICER variant from Epinephelus brunes (longtooth grouper).…”

Section: Candidate Genes Associated With Artsmentioning

confidence: 99%

Brain Transcriptional Profiles of Male Alternative Reproductive Tactics and Females in Bluegill Sunfish

Partridge

MacManes

Knapp

et al. 2015

Preprint

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Bluegill sunfish (Lepomis macrochirus) are one of the classic systems for studying male alternative reproductive tactics (ARTs) in teleost fishes. In this species, there are two distinct life histories: parental and cuckolder, encompassing three reproductive tactics, parental, satellite, and sneaker. The parental life history is fixed, whereas individuals who enter the cuckolder life history transition from sneaker to satellite tactic as they grow. For this study, we used RNAseq to characterize the brain transcriptome of the three male tactics and females during spawning to identify gene ontology (GO) categories and potential candidate genes associated with each tactic. We found that sneaker males had higher levels of gene expression differentiation compared to the other two male tactics. Sneaker males also had higher expression in ionotropic glutamate receptor genes, specifically AMPA receptors, compared to other males, which may be important for increased spatial working memory while attempting to cuckold parental males at their nests. Larger differences in gene expression also occurred among male tactics than between males and females. We found significant expression differences in several candidate genes that were previously identified in other species with ARTs and suggest a previously undescribed role for cAMP-responsive element modulator (crem) in influencing parental male behaviors during spawning.

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Section: Candidate Genes Associated With Artsmentioning

confidence: 99%

Brain Transcriptional Profiles of Male Alternative Reproductive Tactics and Females in Bluegill Sunfish

Partridge

MacManes

Knapp

et al. 2015

Preprint

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“…MUNRO (1986) observou no ciclídeo Aequidens pulcher, o papel deste hormônio na redução de respostas agressivas. Alguns estudos com trutas e salmãos do Atlântico expostos ao período noturno, verificaram que o aumento da intensidade de luz gera uma diminuição dos níveis de melatonina (ZACHMANN et al, 1992;PORTER et al, 2001).…”

Section: Resultsunclassified

EFEITO DE DIFERENTES INTENSIDADES DE LUZ SOBRE A RESPOSTA AO ESTRESSE, CRESCIMENTO E ÍNDICE REPRODUTIVO EM FÊMEAS DE LAMBARI (Astyanax bimaculatus)

Navarro¹,

Navarro²,

Murgas³

2013

Nucleus Animalium

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RESUMO:Este trabalho teve como objetivo verificar o efeito de diferentes intensidades de luz sobre a resposta ao estresse, crescimento e maturação ovariana em fêmeas de lambari (Astyanax bimaculatus). Vinte juvenis de lambari foram mantidos em aquários de 20L cada um, em delineamento inteiramente ao acaso, com intensidade luminosa de 1173lux, provida de uma lâmpada fluorescente. Outras 20 fêmeas de lambaris foram distribuídas em uma apa situada em um tanque retangular de alvenaria, com intensidade de luz natural de 890lux. Após 40 dias de experimento os peixes, mantidos a jejum de 24 horas, foram previamente anestesiados com benzocaína. Dados de peso final, peso da gônada, comprimento total e índice gonadossomático foram mensurados. Amostras de sangue, através de punção caudal, foram coletadas para as dosagens de glicose e cortisol. Em relação aos resultados, não foram observadas diferenças significativas para níveis plasmáticos de cortisol e glicose entre os tratamentos, porém a taxa de sobrevivência do tratamento com 1173lux foi significativamente menor em relação ao tratamento com 890lux. Os peixes do tratamento com 890lux de intensidade luminosa apresentaram, significativamente, maior peso final, maior peso de gônada e maior IGS em relação ao tratamento de 1173lux. Para comprimento total, não foi observado diferença significativa. Os resultados obtidos neste estudo permitem concluir que a intensidade de luz desempenha um importante papel no bem-estar e na maturação ovariana de fêmeas de lambaris.Palavras-chave: Lambari. Intensidade de luz. Estresse. Índice gonadossomático. EFFECT OF DIFFERENT LIGHT INTENSITIES ON THE STRESS RESPONSE, GROWTH AND OVARIAN MATURATION IN FEMALE OF LAMBARI (Astyanax bimaculatus)SUMMARY: This study aimed to evaluate the effect of different intensities of light on the stress response, growth and ovarian maturation in female of lambari (Astyanax bimaculatus). Twenty juveniles were kept in aquariums tetra 20L each, in a completely randomized design, with light intensity of 1173lux fitted with a fluorescent lamp. Another 20 females were distributed in a tetra apa located in a rectangular tank of masonry with light intensity of natural 890lux. After 40 days of the experiment the fish kept on fasting for 24 hours, were previously anesthetized. Data from the final weight, gonad weight, total length and gonadosomatic index were measured. Samples of blood, through caudal puncture, were collected for assay of glucose and cortisol. In the results, there were no significant differences in plasma levels of cortisol and glucose between treatments, but the survival rate of treatment with 1173lux was significantly lower compared to treatment with 890lux. Fish treatment with 890lux light intensity had significantly higher final weight, weight of gonad higher and higher GSI in relation to the treatment of 1173lux. For total length, there was no significant difference. The results of this study indicate that the intensity of light plays an important role in welfare and ovarian maturation of female of...

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“…The higher consumption and glycine tryptophan by fish, it tends to the production of serotonin in the brain also increases [16]. Munro [20] and Maler & Ellis [21] reported that the higher the levels of serotonin in the brain, then the level of aggressive fish tends to decrease. In this study, it can be estimated that the aggressiveness of giant prawn seed tends to decrease with the addition of tryptophan and glycine as much as 1.0% in the feed.…”

Section: Resultsmentioning

confidence: 99%

Applications Tryptophan and Glycine in Feed and Its Effect on the Level of Post Larva Cannibalism and Survival Rate of Giant Prawn (Macrobrachium rosenbergii, de Mann)

Suharyanto

Himawan

2015

JAMB

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The aims of this experiment was to obtain data and information on the percentage of decrease in the levels of cannibalism, growth and survival rate of giant prawn (Macrobrachium rosenbergii) by feeding pellet mixed with tryptophan and glycine. This research was conducted in the hatchery of giant prawn on the Research Institute for Fish Breeding, West Java for 40 days using nine aquaria each measuring 60x40x40 m3. Giant prawn juvenille (PL-7) from the hatchery were used for this study, measuring 10,4 ± 0.2 mm in width and 0,02 ± 0.01 g in weight. One hundred juvenile of giant prawn were stocked in each aquarium. The treatments applied were (A): pellet, (B): pellet + tryptophan and (C): pellet + glycine, with three replicates per treatment. Feeding dose was 15% of the total biomass juvenille while the dose of tryptophan and glycine were 1.0% of the amount of feed given per aquarium. Feeding was done twice a day in the morning and evening. Variables observed were the growth in total length, weight, level of cannibalism, survival rate and water quality parameters. The results showed that adding the amino acids tryptophan and glycine in pellet feed at 1.0% of total biomass could significantly (P<0.05) suppress the level of cannibalism seed without affecting the growth rate (weight and total length) and increase the survival rate of the juvenile giant prawn.

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Effects of Melatonin, Serotonin, and Naloxone on Aggression in Isolated Cichlid Fish (Aequidens pulcher)

Cited by 60 publications

References 9 publications

Brain Transcriptional Profiles of Male Alternative Reproductive Tactics and Females in Bluegill Sunfish

Brain Transcriptional Profiles of Male Alternative Reproductive Tactics and Females in Bluegill Sunfish

EFEITO DE DIFERENTES INTENSIDADES DE LUZ SOBRE A RESPOSTA AO ESTRESSE, CRESCIMENTO E ÍNDICE REPRODUTIVO EM FÊMEAS DE LAMBARI (Astyanax bimaculatus)

Applications Tryptophan and Glycine in Feed and Its Effect on the Level of Post Larva Cannibalism and Survival Rate of Giant Prawn (Macrobrachium rosenbergii, de Mann)

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