Changes of blood gas in carp, Cyprinus carpio, anesthetized with carbon dioxide

Yoshikawa, Hiromasa; Yokoyama, Yoshihiro; Ueno, Saburo; Mitsuda, Hisateru

doi:10.1016/0300-9629(91)90427-e

Cited by 34 publications

(13 citation statements)

References 20 publications

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“…Carbon dioxide anesthesia has been found to be effective across a broad range of temperatures (Gelwicks et al, 1998). Through various delivery systems, carbon dioxide has been successfully used on multiple freshwater species, including yellow perch (Perca flavescens), burbot (Lota lota), carp (Cyprinus carpio), walleye (Sander vitreus), salmon, and trout (salmonids), where it was used while conducting minor surgical procedures, such as implanting telemetry transmitters (Yoshikawa et al, 1991;Prince et al, 1995;Erikson et al, 2006;Vandergoot et al, 2011). To our knowledge, the only documented uses of carbon dioxide as an anesthesia for marine finfishes was to reduce stress during harvesting and prior to processing of aquacultured Atlantic salmon (Salmo salar; Erikson et al 2006) and a comparison of anesthetization techniques on juvenile cobia (Rachycentron canadum; Trushenski et al 2012b).…”

Section: Introductionmentioning

confidence: 99%

Linking fatty acids in the diet and tissues to quality of larval southern flounder (Paralichthys lethostigma)

Oberg

Fuiman

2015

Journal of Experimental Marine Biology and Ecology

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Section: Introductionmentioning

confidence: 99%

Linking fatty acids in the diet and tissues to quality of larval southern flounder (Paralichthys lethostigma)

Oberg

Fuiman

2015

Journal of Experimental Marine Biology and Ecology

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“…The dorsal aorta was cannulated in 10 immobilized carp to monitor the changes in the blood gases during hypoxia. Cannulation and measurements of blood gases were carried out as reported elsewhere (Yoshikawa et al, 1991). Blood was taken four times every 30 min.…”

Section: Methodsmentioning

confidence: 99%

Electroencephalograms and cerebral blood flow in carp, Cyprinus carpio, subjected to acute hypoxia

Yoshikawa¹,

Ishida

Kawata³

et al. 1995

Journal of Fish Biology

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Changes in electroencephalogams (EEG) and cerebral blood flow were examined in carp immobilized with a muscle relaxant during 60 min hypoxia (water Poz of approximately 20 mmHg) and subsequent 30 min normoxia. The amplitude of EEG waves recorded from the telencephalon decreased gradually but slightly with the progression of hypoxia, whereas the telencephalic blood flow increased mainly due to an increased blood velocity. These findings suggested that cerebral activity during hypoxia was compensated to some degree by increased cerebral blood flow. However, carp showed large variations in the patterns of EEG responses and cerebral blood flow.

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“…rainbow trout (Iwama et al, 1989)], hypercapniatolerant species tend to require a much higher P CO2 [e.g. 0.89-4.44 kPa pCO 2 for common carp (Yoshikawa et al, 1988(Yoshikawa et al, , 1991]. P CO2 levels higher than 3.1 kPa would probably be required to elicit an anaesthetic effect in P. hypophthalmus.…”

Section: Alternative Explanationsmentioning

confidence: 99%

Ambient CO2, fish behaviour and altered GABAergic neurotransmission: exploring the mechanism of CO2-altered behaviour by taking a hypercapnia dweller down to low CO2 levels

Regan

Turko

Heras

et al. 2016

Journal of Experimental Biology

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Recent studies suggest that projected rises of aquatic CO 2 levels cause acid-base regulatory responses in fishes that lead to altered GABAergic neurotransmission and disrupted behaviour, threatening fitness and population survival. It is thought that changes in Cl − and HCO 3 − gradients across neural membranes interfere with the function of GABA-gated anion channels (GABA A receptors). So far, such alterations have been revealed experimentally by exposing species living in low-CO 2 environments, like many oceanic habitats, to high levels of CO 2 (hypercapnia). To examine the generality of this phenomenon, we set out to study the opposite situation, hypothesizing that fishes living in typically hypercapnic environments also display behavioural alterations if exposed to low CO 2 levels. This would indicate that ion regulation in the fish brain is fine-tuned to the prevailing CO 2 conditions. We quantified pH regulatory variables and behavioural responses of Pangasianodon hypophthalmus, a fish native to the hypercapnic Mekong River, acclimated to high-CO 2 (3.1 kPa) or low-CO 2 (0.04 kPa) water. We found that brain and blood pH was actively regulated and that the low-CO 2 fish displayed significantly higher activity levels, which were reduced after treatment with gabazine, a GABA A receptor blocker. This indicates an involvement of the GABA A receptor and altered Cl − and HCO 3 − ion gradients. Indeed, Goldman calculations suggest that low levels of environmental CO 2 may cause significant changes in neural ion gradients in P. hypophthalmus. Taken together, the results suggest that brain ion regulation in fishes is fine-tuned to the prevailing ambient CO 2 conditions and is prone to disruption if these conditions change.

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Changes of blood gas in carp, Cyprinus carpio, anesthetized with carbon dioxide

Cited by 34 publications

References 20 publications

Linking fatty acids in the diet and tissues to quality of larval southern flounder (Paralichthys lethostigma)

Linking fatty acids in the diet and tissues to quality of larval southern flounder (Paralichthys lethostigma)

Electroencephalograms and cerebral blood flow in carp, Cyprinus carpio, subjected to acute hypoxia

Ambient CO2, fish behaviour and altered GABAergic neurotransmission: exploring the mechanism of CO2-altered behaviour by taking a hypercapnia dweller down to low CO2 levels

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