Trait-mediated ecosystem impacts: how morphology and size affect pumping rates of the Caribbean giant barrel sponge

Sponges are a dominant component of Caribbean coral reef suspension-feeding communities. Understanding how pumping rates are affected by sponge size and morphology, as well as the environment, is fundamental to understanding the ecological interactions that are mediated by sponge filtration. In a co...

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Autores principales:	SE McMurray, JR Pawlik, CM Finelli
Formato:	article
Lenguaje:	EN
Publicado:	Inter-Research 2014
Materias:	Biology (General) QH301-705.5 Microbiology QR1-502
Acceso en línea:	https://doaj.org/article/8695cd09143b4385908418ec44bc9f40
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spelling	oai:doaj.org-article:8695cd09143b4385908418ec44bc9f402021-11-18T09:19:57ZTrait-mediated ecosystem impacts: how morphology and size affect pumping rates of the Caribbean giant barrel sponge1864-77821864-779010.3354/ab00612https://doaj.org/article/8695cd09143b4385908418ec44bc9f402014-12-01T00:00:00Zhttps://www.int-res.com/abstracts/ab/v23/n1/p1-13/https://doaj.org/toc/1864-7782https://doaj.org/toc/1864-7790Sponges are a dominant component of Caribbean coral reef suspension-feeding communities. Understanding how pumping rates are affected by sponge size and morphology, as well as the environment, is fundamental to understanding the ecological interactions that are mediated by sponge filtration. In a comprehensive in situ investigation of sponge pumping, the excurrent seawater velocities of 274 specimens of the largest Caribbean species, the giant barrel sponge Xestospongia muta, were measured at sites in the Bahamas and Florida Keys to investigate (1) the relationship between excurrent velocity distributions and sponge morphology, (2) the scaling relationship between pumping and sponge size, and (3) temporal variation of pumping and sensitivity to environmental changes. Excurrent velocity distributions across the osculum showed peak velocities at the center and diminishing velocities near the edges of the osculum. The degree of center-weighting was explained by the distribution of sponge biomass relative to the spongocoel. Volumetric pumping rates scaled isometrically with sponge size and averaged 0.06 ± 0.04 l s-1 l-1 sponge tissue, but were reduced for extremely large sponges. Pumping activity was relatively constant over short temporal scales, but varied over longer scales; however, variations in pumping rates, including periods of cessation, were asynchronous across the population and uncorrelated with changes in environmental conditions. We estimate that populations of X. muta in the Florida Keys and Bahamas process a volume of water equivalent to a layer 1.7 to 12.9 m thick each day and overturn the water column every 2.3 to 18.0 d.SE McMurrayJR PawlikCM FinelliInter-ResearcharticleBiology (General)QH301-705.5MicrobiologyQR1-502ENAquatic Biology, Vol 23, Iss 1, Pp 1-13 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Biology (General) QH301-705.5 Microbiology QR1-502
spellingShingle	Biology (General) QH301-705.5 Microbiology QR1-502 SE McMurray JR Pawlik CM Finelli Trait-mediated ecosystem impacts: how morphology and size affect pumping rates of the Caribbean giant barrel sponge
description	Sponges are a dominant component of Caribbean coral reef suspension-feeding communities. Understanding how pumping rates are affected by sponge size and morphology, as well as the environment, is fundamental to understanding the ecological interactions that are mediated by sponge filtration. In a comprehensive in situ investigation of sponge pumping, the excurrent seawater velocities of 274 specimens of the largest Caribbean species, the giant barrel sponge Xestospongia muta, were measured at sites in the Bahamas and Florida Keys to investigate (1) the relationship between excurrent velocity distributions and sponge morphology, (2) the scaling relationship between pumping and sponge size, and (3) temporal variation of pumping and sensitivity to environmental changes. Excurrent velocity distributions across the osculum showed peak velocities at the center and diminishing velocities near the edges of the osculum. The degree of center-weighting was explained by the distribution of sponge biomass relative to the spongocoel. Volumetric pumping rates scaled isometrically with sponge size and averaged 0.06 ± 0.04 l s-1 l-1 sponge tissue, but were reduced for extremely large sponges. Pumping activity was relatively constant over short temporal scales, but varied over longer scales; however, variations in pumping rates, including periods of cessation, were asynchronous across the population and uncorrelated with changes in environmental conditions. We estimate that populations of X. muta in the Florida Keys and Bahamas process a volume of water equivalent to a layer 1.7 to 12.9 m thick each day and overturn the water column every 2.3 to 18.0 d.
format	article
author	SE McMurray JR Pawlik CM Finelli
author_facet	SE McMurray JR Pawlik CM Finelli
author_sort	SE McMurray
title	Trait-mediated ecosystem impacts: how morphology and size affect pumping rates of the Caribbean giant barrel sponge
title_short	Trait-mediated ecosystem impacts: how morphology and size affect pumping rates of the Caribbean giant barrel sponge
title_full	Trait-mediated ecosystem impacts: how morphology and size affect pumping rates of the Caribbean giant barrel sponge
title_fullStr	Trait-mediated ecosystem impacts: how morphology and size affect pumping rates of the Caribbean giant barrel sponge
title_full_unstemmed	Trait-mediated ecosystem impacts: how morphology and size affect pumping rates of the Caribbean giant barrel sponge
title_sort	trait-mediated ecosystem impacts: how morphology and size affect pumping rates of the caribbean giant barrel sponge
publisher	Inter-Research
publishDate	2014
url	https://doaj.org/article/8695cd09143b4385908418ec44bc9f40
work_keys_str_mv	AT semcmurray traitmediatedecosystemimpactshowmorphologyandsizeaffectpumpingratesofthecaribbeangiantbarrelsponge AT jrpawlik traitmediatedecosystemimpactshowmorphologyandsizeaffectpumpingratesofthecaribbeangiantbarrelsponge AT cmfinelli traitmediatedecosystemimpactshowmorphologyandsizeaffectpumpingratesofthecaribbeangiantbarrelsponge
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Trait-mediated ecosystem impacts: how morphology and size affect pumping rates of the Caribbean giant barrel sponge

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