Energy partitioning in cultured juvenile chub mackerel (Scomber japonicas) fed with diet composed of enzyme treated fish meal

Ohnishi, Takayuki; Biswas, Amal; Kaminaka, Kohshi; Murata, O.; Takii, Kenji

doi:10.1007/s12562-016-0975-y

Cited by 3 publications

(1 citation statement)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Energy partitioning experiments on juvenile chub mackerel in the laboratory revealed that 7.4% of total energy consumption was allocated to feces and 8.7% was allocated to the sum of urinary and branchial excretion. (Ohnishi et al, 2016). Therefore, the egesting coefficient of consumption a F was assumed to be 0.074, and the excretion coefficient of consumption a E was calculated as 0.094 according to a E (1a F ) C = 0.087 C. Unfortunately, the energy partitioning rate of specific dynamic action has not been estimated for chub mackerel; therefore, we used the coefficient of SDA for Pacific herring (Megrey et al, 2007) for all stages since the postlarval stage of chub mackerel in this model.…”

Section: Dissipation Termsmentioning

confidence: 99%

Development of a bioenergetics and population dynamics coupled model: A case study of chub mackerel

et al. 2023

View full text Add to dashboard Cite

A bioenergetics and population dynamics coupled model that includes a full life cycle and size/growth-dependent mortality function was developed to better understand stock fluctuations. As an example, the model was applied to chub mackerel (Scomber japonicus) as it shows large stock fluctuations in the western North Pacific. The mortality dependency parameters for growth/size were adjusted to achieve realistic stock fluctuations in the model from 1998 to 2018. Two types of mortality functions were used in the model: one based on both size and growth, and the other based solely on size. An increasing trend of stock fluctuation of chub mackerel in the 2010s was reproduced in the simulation by contributions of several strong monthly cohorts that formed strong year classes using both types of mortality functions. The reproducibility of the stock fluctuation was not markedly different between the models with the two types of mortality functions, which indicates the importance of size-dependent mortality on the stock fluctuations of chub mackerel. The influence of sea surface temperature (SST) and chlorophyll-a was evaluated separately by using the climatological values for one of the forcings, and the model results revealed that the stock fluctuations of chub mackerel during 1998–2018 were mainly controlled by chlorophyll-a, whereas the increasing stock during 2010–2014 was strongly influenced by chlorophyll-a, and that after 2014 was influenced by SST. When integrated with different fishing pressures, the model showed that high fishing pressure hinders the recovery of chub mackerel stocks, highlighting the importance of effective fishery management.

show abstract

Section: Dissipation Termsmentioning

confidence: 99%

Development of a bioenergetics and population dynamics coupled model: A case study of chub mackerel

et al. 2023

View full text Add to dashboard Cite

show abstract

Determination of biogenic amines in Chub Mackerel from different storage methods

Chen

Yang

et al. 2020

Journal of Food Science

View full text Add to dashboard Cite

The eight biogenic amines (BA), which are histamine (HIS), tryptamine, putrescine, 2‐phenylethylamine, cadaverine, tyramine, spermidine, and spermine, were determined in Chub Mackerel under different storage conditions after being freshly caught. The storage time and temperature were varied and the guts either present or removed. This study describes a reverse‐phase high‐performance liquid chromatography (HPLC) with a fluorescence detector following precolumn derivation with dansyl chloride method for the determination of BA in in Chub Mackerel samples. HIS represented the highest content of BA regardless of the storage temperature and time. During a 24‐hr period, the content of HIS reached its highest level of 6,466.63 mg/kg at the storage temperature of 30 °C, whereas it only reached 28.73 mg/kg in 24 hr when the storage temperature was 0 °C, which is way below the standard acceptable threshold level (400 mg/kg). The storage times for the content of HIS to exceed the standard threshold level for HIS at different storage temperatures of 0, 4, 10, 15, 20, and 25 °C were 12, 5, 4 days, 48, 36, 15, and 14 hr, respectively. However, these times were significantly shortened when the viscera was removed from freshly‐caught fish before storage. This study not only provides data for monitoring the content of BA, especially HIS, to ensure the safe storage and consumption of freshly‐caught Chub Mackerel, but also presents a cost‐effective method to extend the storage time of freshly‐caught Chub Mackerel. Practical Application This study not only provides data for monitoring the content of BA, especially HIS, to ensure the safe storage and consumption of freshly‐caught Chub Mackerel, but also presents a cost‐effective method, which is gut‐removal during storage, to extend the storage time of freshly‐caught Chub Mackerel.

show abstract

Fish Specialize Their Metabolic Performance to Maximize Bioenergetic Efficiency in Their Local Environment: Conspecific Comparison Between Two Stocks of Pacific Chub Mackerel (Scomber japonicus)

et al. 2021

View full text Add to dashboard Cite

Species-specific ecological traits in fishes are likely to vary between populations or stocks due to differences in regional oceanic conditions, such as latitudinal temperature. We examined potential intraspecific differences in the swimming performance and metabolism of Pacific chub mackerel (Scomber japonicus) from the Northwest and Northeast Pacific stocks, which are distributed on opposite sides of the North Pacific at similar latitudes, but where the temperature contrast is large. Swimming bioenergetics and metabolic data of Northwest stock mackerel were measured at 14, 18, and 24°C using variable-speed swim-tunnel respirometers, and then the resulting bioenergetic parameters were compared with previous findings from the Northeast stock. At a given size, the maximum sustainable swimming speed (Umax) of the Northwest stock showed no significant difference compared to the Northeast stock at 18 and 24°C, but was lower at 14°C. In addition, the oxygen consumption rate (MO2) of the Northwest stock showed lower mass dependence and different temperature dependence at a given swimming speed than in the Northeast stock. Combined with stock-specific data on growth and experienced temperatures in the wild, these bioenergetic differences indicate that the swimming performance and metabolism of the two stocks are specific to their local environment to maximize bioenergetic efficiency.

show abstract

Energy partitioning in cultured juvenile chub mackerel (Scomber japonicas) fed with diet composed of enzyme treated fish meal

Cited by 3 publications

References 18 publications

Development of a bioenergetics and population dynamics coupled model: A case study of chub mackerel

Development of a bioenergetics and population dynamics coupled model: A case study of chub mackerel

Determination of biogenic amines in Chub Mackerel from different storage methods

Fish Specialize Their Metabolic Performance to Maximize Bioenergetic Efficiency in Their Local Environment: Conspecific Comparison Between Two Stocks of Pacific Chub Mackerel (Scomber japonicus)

Contact Info

Product

Resources

About