Physiological insights for aquaculture diversification: Swimming capacity and efficiency, and metabolic scope for activity in cojinoba Seriolella violacea

Allen, Peter J.; Brokordt, Katherina; Oliva, Marcia; Alveal, Krisler; Flores, Héctor; Álvarez, Claudio

doi:10.1016/j.aquaculture.2020.735968

Cited by 9 publications

(3 citation statements)

References 57 publications

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“…Although these techniques are common in the literature, they can require large sample sizes and potentially overestimate CT max (Beitinger et al, 2000; Lutterschmidt & Hutchison, 1997; Maness & Hutchison, 1980). Enzyme assays provide estimates of enzyme thermal optima while also being used to investigate potential respiration rates, swimming capacity, and cardiac mitochondrial function (Allen et al, 2021; Gerber et al, 2021; Simcic et al, 2005). All of these techniques, both enzymatic and organismal, can generate valuable thermal tolerance data, whether it is at the organismal or cellular level.…”

Section: Discussionmentioning

confidence: 99%

Thermal performance of the electron transport system Complex III in seven Alabama fishes

et al. 2022

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Management of fish populations for conservation in thermally variable systems requires an understanding of the fish's underlying physiology and responses to thermal stress. Physiological research at the organismal level provides information on the overall effects of stressors such as extreme temperature fluctuations. While experiments with whole organisms provide information as to the overall effects of temperature fluctuations, biochemical assays of thermal stress provide direct results of exposure that are both sensitive and specific. Electron transport system (ETS; Complex III) assays quantify a rate‐limiting step of respiratory enzymes. Parameters that can be estimated via this approach include optimum thermal temperature (Topt) and optimal breadth of thermal performance (Tbreadth), which can both be related to organismal‐level temperature thresholds. We exposed enzymes of seven fish species (native fish chosen to represent a typical community in Alabama streams) to temperatures in the range 11–44°C. The resultant enzymatic thermal performance curves showed that Topt, the lower temperature for enzyme optimal thermal performance (Tlow), the upper temperature for enzyme optimal thermal performance (Tup), and Tbreadth differed among species. Relationships between enzymatic activity and temperature for all fish followed a pattern of steadily increasing enzyme activity to Topt before gradually decreasing with increasing temperature. A comparison of our enzyme optimum and upper‐temperature limit results versus published critical thermal maxima values supports that ETS Complex III assays may be useful for assessing organismal‐level thermal tolerance.

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Section: Discussionmentioning

confidence: 99%

Thermal performance of the electron transport system Complex III in seven Alabama fishes

et al. 2022

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“…(4) COS = M ̇O2 (at 2 BLs −1 ) -SMR an estimate of the metabolic cost of activity at low velocity (Allen et al, 2021).…”

Section: 𝛿𝑝O2 𝛿𝑡mentioning

confidence: 99%

Settleable atmospheric particulate matter affects the swimming performance and aerobic metabolic rate of Nile tilapia (Oreochromis niloticus)

Angelis

Soares

McKenzie

et al. 2023

Comparative Biochemistry and Physiology Part C: Toxicology &

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“…In Chile, spearheading initiatives, such as the Chilean Aquaculture Diversification Programs (PDACH), have actively fostered the commercial farming of native species such as Seriola lalandi (yellowtail kingfish) and Seriolella violacea (palm ruff) because of their fast growth, adaptability to various growing conditions, and good commercial value [ 1 , 2 , 3 , 4 ]. Indeed, it becomes imperative to proactively address health concerns as these species undergo intensive cultivation and aquaculture practices intensify the inherent risks associated with disease proliferation.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Biological Activities of Peptides from Epidermal Mucus of Marine Fish Species from Chilean Aquaculture

Álvarez,

Toro-Araneda,

Cumillaf

et al. 2024

Marine Drugs

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The skin of fish is a physicochemical barrier that is characterized by being formed by cells that secrete molecules responsible for the first defense against pathogenic organisms. In this study, the biological activity of peptides from mucus of Seriola lalandi and Seriolella violacea were identified and characterized. To this purpose, peptide extraction was carried out from epidermal mucus samples of juveniles of both species, using chromatographic strategies for purification. Then, the peptide extracts were characterized to obtain the amino acid sequence by mass spectrometry. Using bioinformatics tools for predicting antimicrobial and antioxidant activity, 12 peptides were selected that were chemically produced by simultaneous synthesis using the Fmoc-Tbu strategy. The results revealed that the synthetic peptides presented a random coil or extended secondary structure. The analysis of antimicrobial activity allowed it to be discriminated that four peptides, named by their synthesis code 5065, 5069, 5070, and 5076, had the ability to inhibit the growth of Vibrio anguillarum and affected the copepodite stage of C. rogercresseyi. On the other hand, peptides 5066, 5067, 5070, and 5077 had the highest antioxidant capacity. Finally, peptides 5067, 5069, 5070, and 5076 were the most effective for inducing respiratory burst in fish leukocytes. The analysis of association between composition and biological function revealed that the antimicrobial activity depended on the presence of basic and aromatic amino acids, while the presence of cysteine residues increased the antioxidant activity of the peptides. Additionally, it was observed that those peptides that presented the highest antimicrobial capacity were those that also stimulated respiratory burst in leukocytes. This is the first work that demonstrates the presence of functional peptides in the epidermal mucus of Chilean marine fish, which provide different biological properties when the fish face opportunistic pathogens.

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Physiological insights for aquaculture diversification: Swimming capacity and efficiency, and metabolic scope for activity in cojinoba Seriolella violacea

Cited by 9 publications

References 57 publications

Thermal performance of the electron transport system Complex III in seven Alabama fishes

Thermal performance of the electron transport system Complex III in seven Alabama fishes

Settleable atmospheric particulate matter affects the swimming performance and aerobic metabolic rate of Nile tilapia (Oreochromis niloticus)

Evaluation of the Biological Activities of Peptides from Epidermal Mucus of Marine Fish Species from Chilean Aquaculture

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