Energy balance and cold adaptation in the octopus Pareledone charcoti
A complete energy balance equation is calculated for the Antarctic octopus Pareledone charcoti at 0°C. Energy used in respiration, growth, and excretion of nitrogenous and faecal waste, was recorded along with the total consumption of energy through food, for three specimens of P. charcoti (live wei...
Published in: | Journal of Experimental Marine Biology and Ecology |
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Online Access: | http://nora.nerc.ac.uk/id/eprint/20486/ https://doi.org/10.1016/S0022-0981(99)00161-6 |
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ftnerc:oai:nora.nerc.ac.uk:20486 2023-05-15T13:45:12+02:00 Energy balance and cold adaptation in the octopus Pareledone charcoti Daly, H.I. Peck, L.S. 2000 http://nora.nerc.ac.uk/id/eprint/20486/ https://doi.org/10.1016/S0022-0981(99)00161-6 unknown Elsevier Daly, H.I.; Peck, L.S. orcid:0000-0003-3479-6791 . 2000 Energy balance and cold adaptation in the octopus Pareledone charcoti. Journal of Experimental Marine Biology and Ecology, 245 (2). 197-214. https://doi.org/10.1016/S0022-0981(99)00161-6 <https://doi.org/10.1016/S0022-0981(99)00161-6> Publication - Article PeerReviewed 2000 ftnerc https://doi.org/10.1016/S0022-0981(99)00161-6 2023-02-04T19:32:55Z A complete energy balance equation is calculated for the Antarctic octopus Pareledone charcoti at 0°C. Energy used in respiration, growth, and excretion of nitrogenous and faecal waste, was recorded along with the total consumption of energy through food, for three specimens of P. charcoti (live weights: 73, 51 and 29 g). Growth rates were very slow for cephalopods, with a mean daily increase in body weight of only 0.11%. Assimilation efficiencies were high, between 95.4 and 97.0%, which is consistent with previous work on octopods. The respiration rate in P. charcoti was low, with a mean of 2.45 mg O2 h−1 for a standard animal of 150 g wet mass at 0°C. In the North Sea octopusEledone cirrhosa, respiration rates of 9.79 mg O2 h−1 at 11.5°C and 4.47 mg O2 h−1 at 4.5°C for a standard animal of 150 g wet mass were recorded. Respiration rates between P. charcoti and E. cirrhosa were compared using a combined Q10 value between P. charcoti at 0°C and E. cirrhosa at 4.5°C. This suggests that P. charcoti are respiring at a level predicted by E. cirrhosa rates at 4.5 and 11.5°C extrapolated to 0°C along the curve Q10=3, with no evidence of metabolic compensation for low temperature. Article in Journal/Newspaper Antarc* Antarctic Antarctic Octopus Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Journal of Experimental Marine Biology and Ecology 245 2 197 214 |
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Natural Environment Research Council: NERC Open Research Archive |
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description |
A complete energy balance equation is calculated for the Antarctic octopus Pareledone charcoti at 0°C. Energy used in respiration, growth, and excretion of nitrogenous and faecal waste, was recorded along with the total consumption of energy through food, for three specimens of P. charcoti (live weights: 73, 51 and 29 g). Growth rates were very slow for cephalopods, with a mean daily increase in body weight of only 0.11%. Assimilation efficiencies were high, between 95.4 and 97.0%, which is consistent with previous work on octopods. The respiration rate in P. charcoti was low, with a mean of 2.45 mg O2 h−1 for a standard animal of 150 g wet mass at 0°C. In the North Sea octopusEledone cirrhosa, respiration rates of 9.79 mg O2 h−1 at 11.5°C and 4.47 mg O2 h−1 at 4.5°C for a standard animal of 150 g wet mass were recorded. Respiration rates between P. charcoti and E. cirrhosa were compared using a combined Q10 value between P. charcoti at 0°C and E. cirrhosa at 4.5°C. This suggests that P. charcoti are respiring at a level predicted by E. cirrhosa rates at 4.5 and 11.5°C extrapolated to 0°C along the curve Q10=3, with no evidence of metabolic compensation for low temperature. |
format |
Article in Journal/Newspaper |
author |
Daly, H.I. Peck, L.S. |
spellingShingle |
Daly, H.I. Peck, L.S. Energy balance and cold adaptation in the octopus Pareledone charcoti |
author_facet |
Daly, H.I. Peck, L.S. |
author_sort |
Daly, H.I. |
title |
Energy balance and cold adaptation in the octopus Pareledone charcoti |
title_short |
Energy balance and cold adaptation in the octopus Pareledone charcoti |
title_full |
Energy balance and cold adaptation in the octopus Pareledone charcoti |
title_fullStr |
Energy balance and cold adaptation in the octopus Pareledone charcoti |
title_full_unstemmed |
Energy balance and cold adaptation in the octopus Pareledone charcoti |
title_sort |
energy balance and cold adaptation in the octopus pareledone charcoti |
publisher |
Elsevier |
publishDate |
2000 |
url |
http://nora.nerc.ac.uk/id/eprint/20486/ https://doi.org/10.1016/S0022-0981(99)00161-6 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Antarctic Octopus |
genre_facet |
Antarc* Antarctic Antarctic Octopus |
op_relation |
Daly, H.I.; Peck, L.S. orcid:0000-0003-3479-6791 . 2000 Energy balance and cold adaptation in the octopus Pareledone charcoti. Journal of Experimental Marine Biology and Ecology, 245 (2). 197-214. https://doi.org/10.1016/S0022-0981(99)00161-6 <https://doi.org/10.1016/S0022-0981(99)00161-6> |
op_doi |
https://doi.org/10.1016/S0022-0981(99)00161-6 |
container_title |
Journal of Experimental Marine Biology and Ecology |
container_volume |
245 |
container_issue |
2 |
container_start_page |
197 |
op_container_end_page |
214 |
_version_ |
1766217133398687744 |