Heart rate and muscle performance during forced swimming of jack mackerel Trachurus japonicus at different temperatures

Riyanto, Mochammad; Arimoto, Takafumi

doi:10.1007/s12562-015-0932-1

Cited by 4 publications

(6 citation statements)

References 20 publications

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“…On the other hand, using the conventional method (namely, the bioelectrodes are isolated from seawater), Kojima et al 27 and Riyanto & Arimoto 30 could observe reliable R-waves of ECGs by measuring the bioelectric signal between two needle-type bioelectrodes surgically inserted from the thoracoabdominal body surface of red seabream Pagrus major (Temminck and Schlegel, 1843) or jack mackerel Trachurus japonicus (Temminck and Schlegel, 1844) 27 , 30 . Considering this result, we thought that to observe the R-waves of ECGs by using the proposed method (utilizing the conductivity of seawater), the internal electrode should also be inserted from the thoracoabdominal body surface.…”

Section: Methodsmentioning

confidence: 99%

Method for obtaining reliable R-waves in fish electrocardiograms by utilizing conductivity of seawater

Watanabe,

Torisawa,

Mitsunaga

et al. 2023

Sci Rep

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A simple method for measuring bioelectric signals of fish in seawater is expected for managing the health of farmed fish and clarifying the ecophysiology of natural fish. We previously proposed a simple and unique method for measuring bioelectric signals of fish by inserting only one special internal electrode (which can be isolated from seawater) into the fish’s body and by sinking an external electrode in seawater (for utilizing the conductivity of seawater). However, the proposed method could not obtain fish electrocardiograms (ECGs) with reliable R-waves in the same manner as the conventional method. In this study, we thus experimentally investigated whether the R-waves of ECGs could be observed by optimizing the insertion position of the internal electrode into the fish’s body. The results of the experiment show that for four species of fish (each slightly longer than 10 cm) with different body shapes, reliable R-waves could be observed by inserting the internal electrode near the heart. We also investigated the possibility of simultaneously measuring ECGs of multiple fish by the proposed method. The results of the investigation show that the fish ECGs with R-waves of three fish could be observed simultaneously even when one single common external electrode replaced multiple external electrodes. This result indicates the advantage of the proposed method in reducing the total number of bioelectrodes compared to the conventional method for ECG measurements of multiple fish.

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Section: Methodsmentioning

confidence: 99%

Method for obtaining reliable R-waves in fish electrocardiograms by utilizing conductivity of seawater

Watanabe,

Torisawa,

Mitsunaga

et al. 2023

Sci Rep

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“…Fish heart rate can be measured using electrocardiogram (ECG) techniques at different temperatures [10,14,15]. Observations using electrocardiographic techniques make temperatures reduce fish activity, making it possible to stop the migratory activity of eels and make them less vulnerable to fishing gear.…”

Section: Introductionmentioning

confidence: 99%

Temperature effect on heart rate performance of eel (Anguila bicolor)

Riyanto

Mawardi

Khoerunnisa

2022

IOP Conf. Ser.: Earth Environ. Sci.

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Temperature changes affect fish behavior, and it is one of the critical factors which influence fish survival. The optimum temperature of a species can be used to detect the presence of fish. The fish heart rate indicates the effect of temperature on fish physiology. This study aims to determine the effect of temperature on the fish heart rate and its recovery time. The study collected the heart rate data by observing 40 eels (Anguila bicolor ) measuring 36±0.30 cm and body weight <200 g at 21, 25, and 31°C. The heart rate was monitored by the electrocardiograph (ECG) technique. The results from video monitoring were calculated using frame-by-frame video analysis. The effect of the temperature on the heart rate and recovery time were processed using statistical analysis with a completely randomized design. The results showed that the eel heart rates at 21, 25, and 31°C were 40±1.61, 70±3.91, and 122±7.36 bpm, respectively. Temperature significantly affected (P<0.05) the eel heart rate with the lower Q10 values were 2.77 and 2.25. The eel heart rate recovery time at low temperature was more prolonged than at high temperature.

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“…Moreover, the electrocardiogram (ECG), which is a kind of bioelectric measurement, carries high expectations because it can evaluate psychological stress of marine animals just as it can evaluate that of humans 16 – 19 . Moreover, ECG can be used in fish ethological- and physiological studies 2 , 4 , so innovating techniques and devices for ECG measurement will contribute to developing these studies.…”

Section: Introductionmentioning

confidence: 99%

“…For sustainable use of marine-animal resources, preservation of endangered species, and conservation of ecosystems, it is very important to understand the biology of individual marine animal. From the viewpoints of physiology, ethology, and environmentology, marine animals have been studied by bioelectric measurement [1][2][3][4] , bio-logging [5][6][7][8][9] , and DNA (genome) analysis [10][11][12][13][14][15] , respectively. Recent technological innovations helped studies on bio-logging and DNA analysis advance rapidly, but advancement of bioelectric-measurement technology, which has existed for a long time, lags behind those of bio-logging and DNA analysis.…”

mentioning

confidence: 99%

“…Then, the experimental procedures and results of bioelectric measurements are presented. Finally 4 Fisheries Technology Institute, Hyogo Prefectural Technology Center for Agriculture, Forestry and Fisheries, 22-2, Minamifutami, Futami, Akashi 674-0093, Japan. 5 Graduate School of Engineering, Osaka Prefecture University, 1-1, Gakuen-cho, Naka-ku, Sakai 599-8531, Japan.…”

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confidence: 99%

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Utilizing conductivity of seawater for bioelectric measurement of fish

Saiki

Takizawa

Miyahara

et al. 2020

Sci Rep

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To manage health conditions of farmed fish and other living creatures, a simple method to measure bioelectric signals of the creatures in seawater is expected. A novel method to measure bioelectric signals by utilizing the conductivity of seawater surrounding the entire body of a fish is proposed. As for the proposed method, a needle-type internal electrode is inserted into the fish’s muscle at a certain measurement point, and an external electrode is sunk in seawater. The internal electrode is isolated from the seawater by virtue of being inserted in the fish. Bioelectric signals generated between the external and internal electrodes are then measured. By sharing the external electrode with the internal electrode, it is possible to measure bioelectric signals with half the number of bioelectrodes used by conventional methods. To demonstrate the practicality of the proposed method, two internal electrodes were inserted into different parts (above the gills and near the tail) of three fish (Parajulis poecilepterus, ca. 20 cm fork length) kept in a tank. The proposed method obtained reliable bioelectric signals corresponding to electrocardiograms (ECGs) and electromyograms (EMGs) from each part of the individual fish.

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Heart rate and muscle performance during forced swimming of jack mackerel Trachurus japonicus at different temperatures

Cited by 4 publications

References 20 publications

Method for obtaining reliable R-waves in fish electrocardiograms by utilizing conductivity of seawater

Method for obtaining reliable R-waves in fish electrocardiograms by utilizing conductivity of seawater

Temperature effect on heart rate performance of eel (Anguila bicolor)

Utilizing conductivity of seawater for bioelectric measurement of fish

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