Bioenergetics of captive Pacific bluefin tuna (Thunnus orientalis)

Estess, Ethan E.; Coffey, Daniel M.; Shimose, Tamaki; Seitz, Andrew C.; Rodriguez, Luis; Norton, Alex; Block, Barbara A.; Farwell, Charles J.

doi:10.1016/j.aquaculture.2014.08.002

Cited by 17 publications

(9 citation statements)

References 27 publications

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“…Details of the sampling location, tuna holding, and tissue sampling were previously published in Madigan et al (2012) and Estess et al (2014). Briefly, juvenile (1.1-1.5 year old Pacific bluefin tuna (Thunnus orientalis; PBFT hereafter) were collected using hook and line from the California Current waters, USA, and northern Baja California, Mexico.…”

Section: Captive Husbandrymentioning

confidence: 99%

Quantifying mercury isotope dynamics in captive Pacific bluefin tuna (Thunnus orientalis)

Kwon

Blum

Madigan

et al. 2016

Elementa: Science of the Anthropocene

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Analyses of mercury (Hg) isotope ratios in fish tissues are used increasingly to infer sources and biogeochemical processes of Hg in natural aquatic ecosystems. Controlled experiments that can couple internal Hg isotope behavior with traditional isotope tracers (d 13 C, d15 N) can improve the applicability of Hg isotopes as natural ecological tracers. In this study, we investigated changes in Hg isotope ratios (d 202 Hg, D 199 Hg) during bioaccumulation of natural diets in the pelagic Pacific bluefin tuna (Thunnus orientalis; PBFT). Juvenile PBFT were fed a mixture of natural prey and a dietary supplement (60% Loligo opalescens, 31% Sardinops sagax, 9% gel supplement) in captivity for 2914 days, and white muscle tissues were analyzed for Hg isotope ratios and compared to time in captivity and internal turnover of d 13 C and d 15 N. PBFT muscle tissues equilibrated to Hg isotope ratios of the dietary mixture within ∼700 days, after which we observed a cessation in further shifts in D

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Section: Captive Husbandrymentioning

confidence: 99%

Quantifying mercury isotope dynamics in captive Pacific bluefin tuna (Thunnus orientalis)

Kwon

Blum

Madigan

et al. 2016

Elementa: Science of the Anthropocene

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“…These data provide further evidence for the presence of a metabolic optimum at temperatures of 17°C for Pacific bluefin tuna and increasing metabolic rates at higher temperatures (Blank et al, 2007b). Routine metabolic rates of fish represent are important components of basic bioenergetics (Dale et al, 2013;Estess et al, Jusup et al, 2011) and their underestimation is expected to bias other components of the bioenergetics equation.…”

Section: Temperature Dependence Of Locomotor Activity and Bioenergeticsmentioning

confidence: 60%

Temperature dependent pre- and postprandial activity in Pacific bluefin tuna (Thunnus orientalis)

Gleiss

Dale

Klinger

et al. 2019

Comparative Biochemistry and Physiology Part A: Molecular &

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Bluefin tunas are highly specialized fish with unique hydrodynamic designs and physiological traits. In this study, we present results in a captive population that demonstrate strong effects of ambient temperature on the tail beat frequency and swimming speed of a pelagic fish in both preand post-prandial states. We measured the responses of a ram ventilator, the Pacific bluefin tuna (Thunnus orientalis), after digestion of a meal to explore the impacts of the metabolic costs of digestion on behavior and respiration. A combination of respirometry, physiological biologging of visceral temperatures, and activity monitoring with accelerometry were used to explore the metabolic costs of digestion and the impacts on ventilation and swimming speed. Experiments were conducted at temperatures that are within the metabolic optimum for Pacific bluefin tuna (17 °C), and at a second temperature corresponding to the upper distributional limit of the species in the California Current (24 °C). Warmer temperatures resulted in higher tail-beat frequency and greater elevation of body temperature in pre-prandial Pacific bluefin tuna. Specific dynamic action (SDA) events resulted in a significant postprandial increase in tail-beat frequency of ~0.2 Hz, compared to pre-prandial levels of 1.5 Hz (17°C) and 1.75 Hz (24 °C), possibly resulting from ventilator requirements. Data of fish exercised in a swim-tunnel respirometer suggest that the observed increase in tail-beat frequency comprise 5.5 and 6.8% of the oxygen demand during peak SDA at 24°C and 17°C respectively. The facultative increase in swimming speed might increase oxygen uptake at the gills to meet the increasing demand by visceral organs involved in the digestive process, potentially decreasing the available energy of each meal for other metabolic processes, such as growth, maturation, and reproduction. We hypothesize that these post-prandial behaviors allow tuna to evacuate their guts more quickly, ultimately permitting fish to feed more frequently when prey is available.

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“…Despite the challenges, a couple of growth equations exist, as well as the length‐weight relationship for PBFT under rearing conditions in Japan (Estess et al, ; Masuma, ). The authors were able to perform the analysis given that tuna was reared under experimental conditions; efforts that led to complete the whole species cycle (Sawada et al, ).…”

Section: Discussionmentioning

confidence: 99%

“…Another strategy to compensate for the lack of data to parametrize growth equations is the use of non‐invasive methods, for instance, those based on images (Harvey et al, ). For this approach, an equation explaining the length‐weight relationship must be parametrized using production data to avoid the use of equations employed to assess wild stocks, given that growth in BFT varies significantly according to environmental conditions and production strategy (Aguado‐Giménez & García‐García, ; Estess et al, ; Masuma, ; Shimose, Tanabe, Chen, & Hsu, ; Tičina et al, ; Tzoumas et al, ). However, similar to the parametrization of a growth model in length or weight, the difficulties in obtaining data still remain.…”

Section: Discussionmentioning

confidence: 99%

“…In addition, the parameterized equations used for wild stocks are not appropriate for pen‐reared tuna because of variations in growth trajectories and length‐weight relationship of PBFT resulting from grow‐out conditions of CBA (Aguado‐Giménez & García‐García, ; Estess et al, ; Tičina, Katavić, & Grubišić, ; Tzoumas et al, ). Thus, in the growth curve, a significant amount of information is lost (Hopkings, ).…”

Section: Introductionmentioning

confidence: 99%

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Growth and survival model of Pacific bluefin tuna ( Thunnus orientalis ) for capture‐based aquaculture in Mexico

et al. 2019

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Capture‐based aquaculture (CBA) is a strategy to capture wild aquatic organisms for rearing. The most iconic species produced under this scheme are bluefin tunas. In Mexico, CBA of this species is developed with Pacific bluefin tunas (PBFT). The parametrization of a biological production function able to describe biomass dynamics during the production cycle is one of the strategies that can help optimize production. The objective of this study was to explain biomass dynamics in capture‐based Pacific Bluefin tuna aquaculture in Mexican waters through parameterization of a growth and survival model. This study also assessed the impact of uncertain intrinsic CBA variables (i.e. seed weight, number of stocked individuals and sea surface temperature [SST] variability). The model was parameterized with production records of 47 net pens in two production sites (an offshore and an inshore facility) during three cycles. The results suggested that production performance was related to SST given that this factor affected survival, mainly during the first ≈40 days after stocking. The risk analysis showed that stocking during the second half of the fishing season from June to August increased the likelihood of matching or exceeding the Key Performance Indicator (KPI) defined regarding biomass increase per pen.

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Bioenergetics of captive Pacific bluefin tuna (Thunnus orientalis)

Cited by 17 publications

References 27 publications

Quantifying mercury isotope dynamics in captive Pacific bluefin tuna (Thunnus orientalis)

Quantifying mercury isotope dynamics in captive Pacific bluefin tuna (Thunnus orientalis)

Temperature dependent pre- and postprandial activity in Pacific bluefin tuna (Thunnus orientalis)

Growth and survival model of Pacific bluefin tuna ( Thunnus orientalis ) for capture‐based aquaculture in Mexico

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