Effects of maternal stress coping style on offspring characteristics in rainbow trout (Oncorhynchus mykiss)

Andersson, Mariette; Silva, P.I.M.; Steffensen, John F.; Höglund, Erik

doi:10.1016/j.yhbeh.2011.09.008

Cited by 23 publications

(15 citation statements)

References 54 publications

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“…Moreover, in a recent study it was shown that these lines specific differences were related to offspring characteristics. Females from the strain showing a more bold behavior and a propensity for social dominance produced eggs and larvae with bigger yolks [40]. In the latter study, it was hypothesized that a higher amount of unconsumed yolk could fuel a more energetically expensive aggressive and bold personality during the initial establishment of territory in newly emerged rainbow trout larvae.…”

Section: Discussionmentioning

confidence: 96%

“…The strong relationship between maternal influence and offspring characteristics, observed in salmonid fishes, indicates that the propensity to become dominant in larvae with large yolk reserves could be inherited from the mother. Although, in a study performed by Andersson and co-workers [40], it was demonstrated that not all energy available to the larvae was invested in growth and development, and it was suggested that this “excess” energy is related to personality traits expressed later during development. Moreover, in crickets, it has been demonstrated that there are paternal effects involved in larval size at hatch, and post-hatch metabolism [53], suggesting that male genetics contributes to how the energy is distributed within an egg.…”

Section: Discussionmentioning

confidence: 99%

“…A similar relation between energy and personality were recently demonstrated in offspring originating from selected rainbow trout strains exhibiting differences in boldness and propensity to become socially dominant. Females originating from the more dominant and aggressive strain produced larger eggs and larvae with larger yolk reserves compared to females originating from the less dominant and shyer strain [40]. In the latter study it was suggested that such differences in energy reserves, if persistent after emergence, could supply the energetic requirements for an aggressive behavior during territory establishment and defense.…”

Section: Introductionmentioning

confidence: 89%

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Linking Personality to Larval Energy Reserves in Rainbow Trout (Oncorhynchus mykiss)

Andersson

Höglund

2012

PLoS ONE

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There is a surging interest in the evolution, ecology and physiology of personality differences. However, most of the studies in this research area have been performed in adult animals. Trait variations expressed early in development and how they are related to the ontogeny of an animal’s personality are far less studied. Genetic differences as well as environmental factors causing functional variability of the central serotonergic system have been related to personality differences in vertebrates, including humans. Such gene-environment interplay suggests that the central serotonergic system plays an important role in the ontogeny of personality traits. In salmonid fishes, the timing of emergence from spawning nests is related to energy reserves, aggression, and social dominance. However, it is currently unknown how the size of the yolk reserve is reflected on aggression and dominance, or if these traits are linked to differences in serotonergic transmission in newly emerged larvae. In this study we investigated the relationship between yolk reserves, social dominance, and serotonergic transmission in newly emerged rainbow trout (Oncorhynchus mykiss) larvae. This was conducted by allowing larvae with the same emergence time, but with different yolk sizes, to interact in pairs for 24 h. The results show that individuals with larger yolks performed more aggressive acts, resulting in a suppression of aggression in individuals with smaller yolks. A higher brain serotonergic activity confirmed subordination in larvae with small yolks. The relationship between social dominance and yolk size was present in siblings, demonstrating a link between interfamily variation in energy reserves and aggression, and suggests that larger yolk reserves fuel a more aggressive personality during the initial territorial establishment in salmonid fishes. Furthermore, socially naïve larvae with big yolks had lower serotonin levels, suggesting that other factors than the social environment causes variation in serotonergic transmission, underlying individual variation in aggressive behavior.

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Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 89%

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Linking Personality to Larval Energy Reserves in Rainbow Trout (Oncorhynchus mykiss)

Andersson

Höglund

2012

PLoS ONE

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“…A C C E P T E D ACCEPTED MANUSCRIPT 14 L.), Nile tilapia, white sturgeon (Acipenser transmontanus), and rainbow trout (Oncorhynchus mykiss) [28][29][30][31][32]. Hormone concentrations could be very different between species.…”

Section: A C C E P T E D Accepted Manuscriptmentioning

confidence: 99%

Establishment of a non-invasive method for stress evaluation in farmed salmon based on direct fecal corticoid metabolites measurement

Cao

Tveten

Stene

2017

Fish & Shellfish Immunology

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Fish welfare is an important issue for growth of the aquaculture industry. Stress responses represent animal's natural reactions to challenging conditions and could be used as a welfare indicator. Cortisol level is relevant to fish welfare condition, and is a readily measured component of the primary stress response system. Generally, cortisol is measured by blood sampling. However, fish blood cortisol level could be instantly influenced by handling-stress at sampling. Fecal corticoid metabolites (FCM) are a mixture of several different metabolites with a wide range of polarities. Thus, feces could be promising alternative less handling-sensitive and non-invasive biological matrices for cortisol evaluation in Atlantic salmon. In this study we developed non-invasive method for determination of fecal corticoid metabolites in farmed Atlantic salmon (Salmo salar L.) using enzyme-linked immunosorbent assay (ELISA). It was demonstrated that salmon FCM extracted from salmon feces is insoluble in non-polar solvents like diethyl ether, but well soluble in polar solvents like methanol. The proper extraction ratio could be one ml 100% methanol for 100 μL of the liquid part of salmon feces or 100 mg of the solid part. The FCM directly detected in unextracted liquid part of feces correlated well with the FCM extracted from both liquid and solid part of the corresponding samples, without significant difference. Thus, it is feasible to measure FCM directly in the liquid part of salmon feces without any extraction procedure. Then, we applied this assay for FCM analysis in the group of salmon that experienced salmon pancreas disease (PD) and amoebic gill disease (AGD). We demonstrated 1) both plasma cortisol and FCM increased significantly during the outbreak of inflammatory disease (P < 0.01). Plasma cortisol level was elevated from 28 ± 40 ng/ml to 164.4 ± 62.5 ng/ml, FCM from 14.4 ± 13.2 ng/ml to 170.7 ± 89.7 ng/ml 2) Growth and starvation has no significant impact on either cortisol or FCM level. 3) FCM correlated well with plasma cortisol level (P < 0.01). Furthermore, there seems more individual variation in plasma cortisol levels than in FCM levels. These results suggest FCM could be directly analyzed in liquid part of salmon feces without extraction. This directly detected FCM level could represent the total fecal FCM level and plasma cortisol level. This simple and non-invasive method makes FCM a proper indicator for salmon welfare.

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“…1992; Brooks et al . 1997), exposure to predation and stress (Åberg Andersson et al . 2011; Giesing et al .…”

Section: Egg Collection and Use Of Thawed Sperm Samplesmentioning

confidence: 99%

Cryopreservation in fish: current status and pathways to quality assurance and quality control in repository development

Torres

Hu²,

Tiersch

2016

Reprod. Fertil. Dev.

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Cryopreservation in aquatic species in general has been constrained to research activities for more than 60 years. Although the need for application and commercialisation pathways has become clear, the lack of comprehensive quality assurance and quality control programs has impeded the progress of the field, delaying the establishment of germplasm repositories and commercial-scale applications. In this review we focus on the opportunities for standardisation in the practices involved in the four main stages of the cryopreservation process: (1) source, housing and conditioning of fish; (2) sample collection and preparation; (3) freezing and cryogenic storage of samples; and (4) egg collection and use of thawed sperm samples. In addition, we introduce some key factors that would assist the transition to commercial-scale, high-throughput application.

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Effects of maternal stress coping style on offspring characteristics in rainbow trout (Oncorhynchus mykiss)

Cited by 23 publications

References 54 publications

Linking Personality to Larval Energy Reserves in Rainbow Trout (Oncorhynchus mykiss)

Linking Personality to Larval Energy Reserves in Rainbow Trout (Oncorhynchus mykiss)

Establishment of a non-invasive method for stress evaluation in farmed salmon based on direct fecal corticoid metabolites measurement

Cryopreservation in fish: current status and pathways to quality assurance and quality control in repository development

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