Metabolism and feeding in the Antarctic brachiopod Liothyrella uva: A low energy lifestyle species with restricted metabolic scope
The effect of feeding on metabolism (specific dynamic action; SDA) was assessed in the articulate brachiopod Liothyrella uva (Broderip, 1833) at Signy Island, Antarctica. The response was low and on a much longer timescale than previously reported SDA responses. Oxygen consumption rose post-prandial...
Published in: | Proceedings of the Royal Society of London. Series B: Biological Sciences |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Royal Society
1996
|
Subjects: | |
Online Access: | http://nora.nerc.ac.uk/id/eprint/515228/ https://doi.org/10.1098/rspb.1996.0035 |
id |
ftnerc:oai:nora.nerc.ac.uk:515228 |
---|---|
record_format |
openpolar |
spelling |
ftnerc:oai:nora.nerc.ac.uk:515228 2023-05-15T13:49:33+02:00 Metabolism and feeding in the Antarctic brachiopod Liothyrella uva: A low energy lifestyle species with restricted metabolic scope Peck, Lloyd S. 1996-02 http://nora.nerc.ac.uk/id/eprint/515228/ https://doi.org/10.1098/rspb.1996.0035 unknown Royal Society Peck, Lloyd S. orcid:0000-0003-3479-6791 . 1996 Metabolism and feeding in the Antarctic brachiopod Liothyrella uva: A low energy lifestyle species with restricted metabolic scope. Proceedings of the Royal Society B: Biological Sciences, 263 (1367). 223-228. https://doi.org/10.1098/rspb.1996.0035 <https://doi.org/10.1098/rspb.1996.0035> Publication - Article PeerReviewed 1996 ftnerc https://doi.org/10.1098/rspb.1996.0035 2023-02-04T19:43:55Z The effect of feeding on metabolism (specific dynamic action; SDA) was assessed in the articulate brachiopod Liothyrella uva (Broderip, 1833) at Signy Island, Antarctica. The response was low and on a much longer timescale than previously reported SDA responses. Oxygen consumption rose post-prandially to a peak which was 1.64 $\times $ higher than the prefeeding basal metabolic rate. The response peaked on the 5$^{\text{th}}$ day and returned to basal levels on the 18$^{\text{th}}$ day after feeding. Maximum metabolic scope was therefore restricted, and was 0.41 $\mu $molO$_{2}$ h$^{-1}$ (24.5 microwatts) for a 290 mg ash-free dry mass individual. Unusually ammonia excretion was little affected by feeding, except for a short sharp peak on the 4$^{\text{th}}$ post-prandial day. Metabolic O:N ratios were very low, ranging from 2.9 to 6.6 and indicated an almost sole use of protein to fuel metabolism throughout. Urea excretion showed no pattern in relation to feeding, and accounted for around 7% of nitrogen excreted. It is suggested that metabolic scope is limited in L. uva for two reasons: because it has evolved to live at low temperatures and because of phylogenetic limitations related to articulate brachiopod lifestyles. Article in Journal/Newspaper Antarc* Antarctic Antarctica Signy Island Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Signy Island ENVELOPE(-45.595,-45.595,-60.708,-60.708) Sharp Peak ENVELOPE(-37.900,-37.900,-54.050,-54.050) Proceedings of the Royal Society of London. Series B: Biological Sciences 263 1367 223 228 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
description |
The effect of feeding on metabolism (specific dynamic action; SDA) was assessed in the articulate brachiopod Liothyrella uva (Broderip, 1833) at Signy Island, Antarctica. The response was low and on a much longer timescale than previously reported SDA responses. Oxygen consumption rose post-prandially to a peak which was 1.64 $\times $ higher than the prefeeding basal metabolic rate. The response peaked on the 5$^{\text{th}}$ day and returned to basal levels on the 18$^{\text{th}}$ day after feeding. Maximum metabolic scope was therefore restricted, and was 0.41 $\mu $molO$_{2}$ h$^{-1}$ (24.5 microwatts) for a 290 mg ash-free dry mass individual. Unusually ammonia excretion was little affected by feeding, except for a short sharp peak on the 4$^{\text{th}}$ post-prandial day. Metabolic O:N ratios were very low, ranging from 2.9 to 6.6 and indicated an almost sole use of protein to fuel metabolism throughout. Urea excretion showed no pattern in relation to feeding, and accounted for around 7% of nitrogen excreted. It is suggested that metabolic scope is limited in L. uva for two reasons: because it has evolved to live at low temperatures and because of phylogenetic limitations related to articulate brachiopod lifestyles. |
format |
Article in Journal/Newspaper |
author |
Peck, Lloyd S. |
spellingShingle |
Peck, Lloyd S. Metabolism and feeding in the Antarctic brachiopod Liothyrella uva: A low energy lifestyle species with restricted metabolic scope |
author_facet |
Peck, Lloyd S. |
author_sort |
Peck, Lloyd S. |
title |
Metabolism and feeding in the Antarctic brachiopod Liothyrella uva: A low energy lifestyle species with restricted metabolic scope |
title_short |
Metabolism and feeding in the Antarctic brachiopod Liothyrella uva: A low energy lifestyle species with restricted metabolic scope |
title_full |
Metabolism and feeding in the Antarctic brachiopod Liothyrella uva: A low energy lifestyle species with restricted metabolic scope |
title_fullStr |
Metabolism and feeding in the Antarctic brachiopod Liothyrella uva: A low energy lifestyle species with restricted metabolic scope |
title_full_unstemmed |
Metabolism and feeding in the Antarctic brachiopod Liothyrella uva: A low energy lifestyle species with restricted metabolic scope |
title_sort |
metabolism and feeding in the antarctic brachiopod liothyrella uva: a low energy lifestyle species with restricted metabolic scope |
publisher |
Royal Society |
publishDate |
1996 |
url |
http://nora.nerc.ac.uk/id/eprint/515228/ https://doi.org/10.1098/rspb.1996.0035 |
long_lat |
ENVELOPE(-45.595,-45.595,-60.708,-60.708) ENVELOPE(-37.900,-37.900,-54.050,-54.050) |
geographic |
Antarctic The Antarctic Signy Island Sharp Peak |
geographic_facet |
Antarctic The Antarctic Signy Island Sharp Peak |
genre |
Antarc* Antarctic Antarctica Signy Island |
genre_facet |
Antarc* Antarctic Antarctica Signy Island |
op_relation |
Peck, Lloyd S. orcid:0000-0003-3479-6791 . 1996 Metabolism and feeding in the Antarctic brachiopod Liothyrella uva: A low energy lifestyle species with restricted metabolic scope. Proceedings of the Royal Society B: Biological Sciences, 263 (1367). 223-228. https://doi.org/10.1098/rspb.1996.0035 <https://doi.org/10.1098/rspb.1996.0035> |
op_doi |
https://doi.org/10.1098/rspb.1996.0035 |
container_title |
Proceedings of the Royal Society of London. Series B: Biological Sciences |
container_volume |
263 |
container_issue |
1367 |
container_start_page |
223 |
op_container_end_page |
228 |
_version_ |
1766251594888773632 |