The Role of Temperature in the Environmental Physiology of Fishes

Reynolds, William W.; Casterlin, Martha E.

doi:10.1007/978-1-4899-3659-2_19

Cited by 57 publications

(53 citation statements)

References 95 publications

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“…The disadvantages of preferring lower water temperatures during hypoxia are a reduction in swimming speed as well as a reduction in food intake and digestion rate, which results in decreased growth (Brett, 1971). Changes in enzyme conformation, membrane structure and acid-base regulation are also consequences of a sudden decrease in temperature (Reynolds and Casterlin, 1980; Swimming speed decreased significantly (P=0.0001) for both haemoglobin types when exposed to hypoxia. Jobling, 1994).…”

Section: Discussionmentioning

confidence: 99%

Preferred temperature of juvenile Atlantic codGadus morhuawith different haemoglobin genotypes at normoxia and moderate hypoxia

Petersen

Steffensen

2003

Journal of Experimental Biology

110

101

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SUMMARYAtlantic cod Gadus morhua has polymorphic haemoglobin, which can be separated into two homozygous types, HbI-1 and HbI-2, and one heterozygous type HbI-1/2. The geographical distribution of Atlantic cod with the different haemoglobin types varies, with the HbI2 allele occurring at high frequency in northern regions, and the HbI1 allele dominant in warmer areas. To determine if temperature is a selective parameter in the distribution of the haemoglobin types, the preferred temperature of the homozygous genotypes HbI-1 and HbI-2 was measured. We found that HbI-2 cod preferred a temperature of 8.2±1.5°C while HbI-1 cod preferred 15.4±1.1°C, and this preference was significant. The effect of hypoxia (35% oxygen saturation) on the preferred temperature was also measured. Previous studies showed that the preferred temperature of fish decreases during hypoxia, and this was the case for HbI-1 cod, which preferred 9.8±1.8°C during hypoxia, whereas HbI-2 cod did not show this effect. The results indicate that environmental temperature changes will lead to a distributional change in the different haemoglobin types of Atlantic cod,global warming providing an advantage for HbI-1 cod. However, since HbI-1 cod prefer a low temperature under hypoxic conditions, a combination of increased water temperature and hypoxia could be unfavourable for Atlantic cod stocks.

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Section: Discussionmentioning

confidence: 99%

Preferred temperature of juvenile Atlantic codGadus morhuawith different haemoglobin genotypes at normoxia and moderate hypoxia

Petersen

Steffensen

2003

Journal of Experimental Biology

110

101

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“…Under these circumstances, the fish are expected to reduce their locomotion activity (Mehner and Wieser, 1994), swimming speed (Brett, 1971), acid-base regulation, osmotic balance (Reynolds and Casterlin, 1980), and growth rates (Jobling, 1988;Morgan, 1992). Also, fish secrete mucose onto the surface of their gill or skin as a defensive mechanism when they are exposed to poisonous substance or abrupt environmental changes.…”

Section: Resultsmentioning

confidence: 99%

Effect of Yellow Clay on the Oxygen Consumption Rate of Korean rockfish, Sebastes schlegelii

Lee¹,

Kim²,

Park³

et al. 2013

Journal of the Korean Society of Marine Environment & Safet

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“…When fish are exposed to very low or high temperatures, their metabolic activity is reduced or increased as a result of the severe physiological stress (Kim et al, 2003). Under these circumstances, the fish are expected to reduce their locomotion activity (Mehner and Wieser, 1994), swimming speed (Brett, 1971), acid-base regulation and/or osmotic balance (Reynolds and Casterlin, 1980), and growth rates (Jobling, 1988;Morgan, 1992). The CTM may also be affected by body size (Barrionuevo and Fernandes, 1995), each individual (Menasveta, 1981) and physiological conditions (Woiwode and Adelman, 1992) of the test animals.…”

Section: Discussionmentioning

confidence: 99%

Effects of Water Temperature Changes on the Oxygen Consumption Rhythm in the Japanese eel, Anguilla japonica

Kim¹,

Lee²,

Noh³

et al. 2011

Journal of Environmental Science International

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We investigated the effects of temperature changes on the oxygen consumption rhythm in Japanese eels, Anguilla japonica, using an automatic intermittent flow respirometer (AIFR). The endogenous rhythm of the oxygen consumption rate (OCR) in the eels (n = 18; 44-74 cm, 145-690 g), freshly collected by bag net from estuaries, was nearly synchronous with the tidal pattern of the estuarine collection site. The magnitude of mean OCR (mOCR) of eels showed variable range of 82.2 -116.5 ml O2 kg -1 ww h -1 under constant conditions. In case of increasing temperature from 25 to 38℃, the OCR of eels exhibited a gradually increasing trend with a rhythmic pattern until 36℃. Above 36℃, the rhythms of the OCR dampened and the OCR decreased rapidly at around 36 -37℃. The OCR of the eels exhibited the maximum value at 38℃, and then it sharply decreased. The results suggested that the critical thermal maximum (CTM) regarding the endogenous rhythms of the eels was at around 36 -37℃ when water temperature increased at 0.5℃/14 h following the acclimation at 25℃. In case of decreasing temperature (0.5℃/14 h) from 25 to 0℃, the OCR of the eels displayed a abrupt decrease up to 23℃, and between at 23 and 20℃, there was an agitation which showed a slight increase in the OCR with a duration of 1-2 days. Below 9℃, the OCR rhythm of the eels showed a constant state regardless of temperature decreasing. These results suggest that the Japanese eel has an upper incipient lethal temperature at 36℃, with a lower thermal limit at 9℃. The biochemical aspects of the eels influenced by water temperature need to be further studied.

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The Role of Temperature in the Environmental Physiology of Fishes

Abstract: A lower temperature limit for aquatic life, in

Cited by 57 publications

References 95 publications

Preferred temperature of juvenile Atlantic codGadus morhuawith different haemoglobin genotypes at normoxia and moderate hypoxia

Preferred temperature of juvenile Atlantic codGadus morhuawith different haemoglobin genotypes at normoxia and moderate hypoxia

Effect of Yellow Clay on the Oxygen Consumption Rate of Korean rockfish, Sebastes schlegelii

Effects of Water Temperature Changes on the Oxygen Consumption Rhythm in the Japanese eel, Anguilla japonica

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