Variability in diel and seasonal in situ metabolism of the tropical gastropod Tectus niloticus

Researchers often use metabolic measurements in the field over narrow time periods to estimate an organism’s metabolism over large time scales. Here, we measured in situ respiration, calcification and excretion rates of the tropical gastropod Tectus niloticus L. through benthic chamber experiments....

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Autores principales:	A Lorrain, J Clavier, J Thébault, L Tremblay-Boyer, F Houlbrèque, E Amice, M Le Goff, L Chauvaud
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2015
Materias:	Biology (General) QH301-705.5 Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/2f43fa78fa6a49be95cc3fcf4b6310a6
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spelling	oai:doaj.org-article:2f43fa78fa6a49be95cc3fcf4b6310a62021-11-18T09:20:38ZVariability in diel and seasonal in situ metabolism of the tropical gastropod Tectus niloticus1864-77821864-779010.3354/ab00618https://doaj.org/article/2f43fa78fa6a49be95cc3fcf4b6310a62015-02-01T00:00:00Zhttps://www.int-res.com/abstracts/ab/v23/n2/p167-182/https://doaj.org/toc/1864-7782https://doaj.org/toc/1864-7790Researchers often use metabolic measurements in the field over narrow time periods to estimate an organism’s metabolism over large time scales. Here, we measured in situ respiration, calcification and excretion rates of the tropical gastropod Tectus niloticus L. through benthic chamber experiments. Our samples spanned a 21 h time frame and were taken during both the warm and cool seasons. We assessed diel and seasonal variability in metabolic rates, as well as the effect of individual size and the contribution of shell epi- and endobionts. Our results show that metabolic rates vary through time at both diel and seasonal scales, as measured fluxes for respiration and calcification were significantly higher at night during the warm season. This nocturnal pattern was not significant in the cool season. Size effects were significant with higher respiration and calcification rates for small individuals regardless of the season, although the difference tended to be more pronounced in the warm season. We also found that shell epi- and endobionts made an important contribution to respiration, as 40 and up to 100% of total measured fluxes for night and day, respectively, could be attributed to the shell community. More importantly, the direction of the measured flux was occasionally opposite that of the individual trochus, highlighting that the contribution of shell epi- and endobionts must be accounted for in order to achieve an accurate understanding of individual metabolism. Lastly, depending on the time of day and season when measurements are taken, ignoring diel or seasonal variations in metabolic rates could result in important under- or overestimation of the contributions of gastropods to carbon and calcium carbonate fluxes in coastal ecosystems.A LorrainJ ClavierJ ThébaultL Tremblay-BoyerF HoulbrèqueE AmiceM Le GoffL ChauvaudInter-ResearcharticleBiology (General)QH301-705.5MicrobiologyQR1-502ENAquatic Biology, Vol 23, Iss 2, Pp 167-182 (2015)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biology (General) QH301-705.5 Microbiology QR1-502
spellingShingle	Biology (General) QH301-705.5 Microbiology QR1-502 A Lorrain J Clavier J Thébault L Tremblay-Boyer F Houlbrèque E Amice M Le Goff L Chauvaud Variability in diel and seasonal in situ metabolism of the tropical gastropod Tectus niloticus
description	Researchers often use metabolic measurements in the field over narrow time periods to estimate an organism’s metabolism over large time scales. Here, we measured in situ respiration, calcification and excretion rates of the tropical gastropod Tectus niloticus L. through benthic chamber experiments. Our samples spanned a 21 h time frame and were taken during both the warm and cool seasons. We assessed diel and seasonal variability in metabolic rates, as well as the effect of individual size and the contribution of shell epi- and endobionts. Our results show that metabolic rates vary through time at both diel and seasonal scales, as measured fluxes for respiration and calcification were significantly higher at night during the warm season. This nocturnal pattern was not significant in the cool season. Size effects were significant with higher respiration and calcification rates for small individuals regardless of the season, although the difference tended to be more pronounced in the warm season. We also found that shell epi- and endobionts made an important contribution to respiration, as 40 and up to 100% of total measured fluxes for night and day, respectively, could be attributed to the shell community. More importantly, the direction of the measured flux was occasionally opposite that of the individual trochus, highlighting that the contribution of shell epi- and endobionts must be accounted for in order to achieve an accurate understanding of individual metabolism. Lastly, depending on the time of day and season when measurements are taken, ignoring diel or seasonal variations in metabolic rates could result in important under- or overestimation of the contributions of gastropods to carbon and calcium carbonate fluxes in coastal ecosystems.
format	article
author	A Lorrain J Clavier J Thébault L Tremblay-Boyer F Houlbrèque E Amice M Le Goff L Chauvaud
author_facet	A Lorrain J Clavier J Thébault L Tremblay-Boyer F Houlbrèque E Amice M Le Goff L Chauvaud
author_sort	A Lorrain
title	Variability in diel and seasonal in situ metabolism of the tropical gastropod Tectus niloticus
title_short	Variability in diel and seasonal in situ metabolism of the tropical gastropod Tectus niloticus
title_full	Variability in diel and seasonal in situ metabolism of the tropical gastropod Tectus niloticus
title_fullStr	Variability in diel and seasonal in situ metabolism of the tropical gastropod Tectus niloticus
title_full_unstemmed	Variability in diel and seasonal in situ metabolism of the tropical gastropod Tectus niloticus
title_sort	variability in diel and seasonal in situ metabolism of the tropical gastropod tectus niloticus
publisher	Inter-Research
publishDate	2015
url	https://doaj.org/article/2f43fa78fa6a49be95cc3fcf4b6310a6
work_keys_str_mv	AT alorrain variabilityindielandseasonalinsitumetabolismofthetropicalgastropodtectusniloticus AT jclavier variabilityindielandseasonalinsitumetabolismofthetropicalgastropodtectusniloticus AT jthebault variabilityindielandseasonalinsitumetabolismofthetropicalgastropodtectusniloticus AT ltremblayboyer variabilityindielandseasonalinsitumetabolismofthetropicalgastropodtectusniloticus AT fhoulbreque variabilityindielandseasonalinsitumetabolismofthetropicalgastropodtectusniloticus AT eamice variabilityindielandseasonalinsitumetabolismofthetropicalgastropodtectusniloticus AT mlegoff variabilityindielandseasonalinsitumetabolismofthetropicalgastropodtectusniloticus AT lchauvaud variabilityindielandseasonalinsitumetabolismofthetropicalgastropodtectusniloticus
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Variability in diel and seasonal in situ metabolism of the tropical gastropod Tectus niloticus

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