Soft-Sediment Communities of the Northern Indian River Lagoon, FL, United States

Understanding the structure and function of infaunal communities is useful in determining the biodiversity and ecosystem function of shallow estuaries. We conducted a survey of infaunal communities within three separate water basins [Mosquito Lagoon (ML), Indian River (IR), and Banana River (BR)] in...

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Autores principales:	Jessica Lunt, Christopher J. Freeman, Dean S. Janiak, Katrina Bayliss, Michelle Stephens, Eve Galimany, Valerie J. Paul
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	macrobenthos isotopes community structure brown tide diversity Science Q General. Including nature conservation, geographical distribution QH1-199.5
Acceso en línea:	https://doaj.org/article/5f9916c60d7244a4ae6aaa63f704f85f
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spelling	oai:doaj.org-article:5f9916c60d7244a4ae6aaa63f704f85f2021-11-04T04:53:24ZSoft-Sediment Communities of the Northern Indian River Lagoon, FL, United States2296-774510.3389/fmars.2021.719049https://doaj.org/article/5f9916c60d7244a4ae6aaa63f704f85f2021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmars.2021.719049/fullhttps://doaj.org/toc/2296-7745Understanding the structure and function of infaunal communities is useful in determining the biodiversity and ecosystem function of shallow estuaries. We conducted a survey of infaunal communities within three separate water basins [Mosquito Lagoon (ML), Indian River (IR), and Banana River (BR)] in the larger Northern Indian River Lagoon, FL, United States to establish a database of infaunal community structure and function. Twenty-seven sites were sampled quarterly from 2014 to 2016. Analysis of all samples determined that basin, season, and sediment composition were the primary drivers of macrobenthic community composition. Diversity was highest in the ML, and lower in spring compared to other seasons. The occurrence of a brown tide (Aureoumbra lagunensis) in 2016 allowed a comparison of winter and spring communities before (2015) and during (2016) a bloom event. Community composition and diversity at the BR sites were the most affected by the bloom event with the lowest diversity and abundances during the bloom. Diversity in the IR was also lower during the bloom, while the ML was unaffected by the bloom. Species of all feeding groups were affected by the bloom, with lower abundances found in all groups. In addition, to determine the overall trophic diversity of infaunal communities, we collected infaunal organisms from two of the quarterly sampled sites for isotope analyses. Values of δ13C and δ15N from infaunal tissue were compared to those of potential food sources at each site. Substantial interspecific variation in isotope values of infaunal organisms within a site suggests the presence of diverse nutritional modes that include suspension and deposit feeding and predation. Together, these data suggest that infaunal communities contribute to benthic pelagic coupling and nutrient cycling within the estuarine communities, but the overall function of these communities may be tightly linked to their species composition.Jessica LuntChristopher J. FreemanDean S. JaniakKatrina BaylissMichelle StephensEve GalimanyValerie J. PaulFrontiers Media S.A.articlemacrobenthosisotopescommunity structurebrown tidediversityScienceQGeneral. Including nature conservation, geographical distributionQH1-199.5ENFrontiers in Marine Science, Vol 8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	macrobenthos isotopes community structure brown tide diversity Science Q General. Including nature conservation, geographical distribution QH1-199.5
spellingShingle	macrobenthos isotopes community structure brown tide diversity Science Q General. Including nature conservation, geographical distribution QH1-199.5 Jessica Lunt Christopher J. Freeman Dean S. Janiak Katrina Bayliss Michelle Stephens Eve Galimany Valerie J. Paul Soft-Sediment Communities of the Northern Indian River Lagoon, FL, United States
description	Understanding the structure and function of infaunal communities is useful in determining the biodiversity and ecosystem function of shallow estuaries. We conducted a survey of infaunal communities within three separate water basins [Mosquito Lagoon (ML), Indian River (IR), and Banana River (BR)] in the larger Northern Indian River Lagoon, FL, United States to establish a database of infaunal community structure and function. Twenty-seven sites were sampled quarterly from 2014 to 2016. Analysis of all samples determined that basin, season, and sediment composition were the primary drivers of macrobenthic community composition. Diversity was highest in the ML, and lower in spring compared to other seasons. The occurrence of a brown tide (Aureoumbra lagunensis) in 2016 allowed a comparison of winter and spring communities before (2015) and during (2016) a bloom event. Community composition and diversity at the BR sites were the most affected by the bloom event with the lowest diversity and abundances during the bloom. Diversity in the IR was also lower during the bloom, while the ML was unaffected by the bloom. Species of all feeding groups were affected by the bloom, with lower abundances found in all groups. In addition, to determine the overall trophic diversity of infaunal communities, we collected infaunal organisms from two of the quarterly sampled sites for isotope analyses. Values of δ13C and δ15N from infaunal tissue were compared to those of potential food sources at each site. Substantial interspecific variation in isotope values of infaunal organisms within a site suggests the presence of diverse nutritional modes that include suspension and deposit feeding and predation. Together, these data suggest that infaunal communities contribute to benthic pelagic coupling and nutrient cycling within the estuarine communities, but the overall function of these communities may be tightly linked to their species composition.
format	article
author	Jessica Lunt Christopher J. Freeman Dean S. Janiak Katrina Bayliss Michelle Stephens Eve Galimany Valerie J. Paul
author_facet	Jessica Lunt Christopher J. Freeman Dean S. Janiak Katrina Bayliss Michelle Stephens Eve Galimany Valerie J. Paul
author_sort	Jessica Lunt
title	Soft-Sediment Communities of the Northern Indian River Lagoon, FL, United States
title_short	Soft-Sediment Communities of the Northern Indian River Lagoon, FL, United States
title_full	Soft-Sediment Communities of the Northern Indian River Lagoon, FL, United States
title_fullStr	Soft-Sediment Communities of the Northern Indian River Lagoon, FL, United States
title_full_unstemmed	Soft-Sediment Communities of the Northern Indian River Lagoon, FL, United States
title_sort	soft-sediment communities of the northern indian river lagoon, fl, united states
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/5f9916c60d7244a4ae6aaa63f704f85f
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Soft-Sediment Communities of the Northern Indian River Lagoon, FL, United States

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