Measurements of oxygen consumption and ammonia excretion of Atlantic salmon (Salmo salar L.) in commercial-scale, single-pass freshwater and seawater landbased culture systems

Spontaneous activity, oxygen consumption, and excretion of ammonia by juvenile Atlantic salmon (Salmo salar) were measured over 17 wk as the appearance of the fish changed from early smolt to smolt and then postsmolt. A substantial change in routine oxygen consumption from 66 to 148 mL∙kg−1∙h−1 was primarily correlated with the increase in activity. An initial increase in ammonia excretion from about 5 to about 14 mL∙kg−1∙h−1 was largely correlated with the decline in condition factor from 0.99 to 0.79 suggesting that increased metabolic needs caused by the increased activity were not being met by the amount of food ingested. This is supported by the secondary increase in condition factor (C.F. = 0.93) and decrease in ammonia excretion (to about 7 mg∙kg−1∙h−1) that occurred after the meal size was increased.

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The oxygen consumption rate of Atlantic salmon (Salmo salar L.) reared in a single pass landbased seawater system

Aquacultural Engineering ◽

10.1016/0144-8609(91)90013-a ◽

1991 ◽

Vol 10 (4) ◽

pp. 227-235 ◽

Cited By ~ 17

Author(s):

Sveinung Fivelstad ◽

Michael J. Smith

Keyword(s):

Oxygen Consumption ◽

Atlantic Salmon ◽

Salmo Salar ◽

Oxygen Consumption Rate ◽

Consumption Rate ◽

Single Pass ◽

Atlantic Salmon Salmo Salar

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Diurnal rhythm in the rates of oxygen consumption, locomotor and feeding activity of yearling atlantic salmon (Salmo salar) under various light conditions

Proceedings of the Indian Academy of Sciences - Section A Part 3 Mathematical sciences ◽

10.1007/bf03051990 ◽

1964 ◽

Vol 60 (4) ◽

pp. 249-263

Author(s):

M. A. Ali

Keyword(s):

Oxygen Consumption ◽

Atlantic Salmon ◽

Salmo Salar ◽

Diurnal Rhythm ◽

Feeding Activity ◽

Light Conditions ◽

Atlantic Salmon Salmo Salar

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The impact of varying feeding regimes on oxygen consumption and excretion of carbon dioxide and nitrogen in post-smolt Atlantic salmon Salmo salar L.

Aquaculture Research ◽

10.1111/j.1365-2109.1997.tb01312.x ◽

1997 ◽

Vol 28 (1) ◽

pp. 29-41 ◽

Cited By ~ 41

Author(s):

O I Forsberg

Keyword(s):

Carbon Dioxide ◽

Oxygen Consumption ◽

Atlantic Salmon ◽

Salmo Salar ◽

Atlantic Salmon Salmo Salar ◽

Feeding Regimes ◽

The Impact

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Hourly and total oxygen consumption by ova of Atlantic salmon, Salmo salar L., during embryogenesis, at two temperatures and three levels of dissolved oxygen

Canadian Journal of Zoology ◽

10.1139/z79-152 ◽

1979 ◽

Vol 57 (6) ◽

pp. 1196-1200 ◽

Cited By ~ 24

Author(s):

T. Hamor ◽

E. T. Garside

Keyword(s):

Oxygen Consumption ◽

Atlantic Salmon ◽

Oxygen Uptake ◽

Dissolved Oxygen ◽

Salmo Salar ◽

Developmental Time ◽

Total Oxygen ◽

Weighted Mean ◽

Atlantic Salmon Salmo Salar ◽

Two Temperatures

Weighted mean hourly rates of oxygen consumption in embryonated ova of Atlantic salmon, Salmo salar L., during embryogenesis, were reduced significantly by levels of dissolved oxygen below air saturation and by a temperature of 5 °C, relative to those for ova incubated at 10 °C. Total oxygen consumption during embryogenesis also was reduced significantly by the lower levels of dissolved oxygen, but not by temperature. The decrease in the pace of embryogenesis in the lots of ova at 5 °C extended the developmental time so that the lower rate of oxygen uptake was offset. Thus, within each level of dissolved oxygen there was no appreciable difference in the products of time units and units of oxygen uptake. At 5 °C, 100% air saturation, mean hourly uptake was 0.0141 mg O2/ovum, and total uptake was 28.153 mg O2/ovum. At 10 °C, 100% air saturation, these values were 0.0270 mg O2/ovum, and 27.974 mg O2/ovum, respectively. Values for ova incubated at 50 and 30% air saturation were correspondingly lower.

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