Biomass Mapping for an Improved Understanding of the Contribution of Cold-Water Coral Carbonate Mounds to C and N Cycling

This study used a novel approach combining biological, environmental, and ecosystem function data of the Logachev cold-water coral carbonate mound province to predictively map coral framework (bio)mass. A more accurate representation and quantification of cold-water coral reef ecosystem functions su...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Laurence Helene De Clippele, Anna-Selma van der Kaaden, Sandra Rosa Maier, Evert de Froe, J. Murray Roberts
Formato:	article
Lenguaje:	EN
Publicado:	Frontiers Media S.A. 2021
Materias:	biomass ecosystem functions carbon cycle nitrogen cycle predictive mapping cold-water coral carbonate mound Science Q General. Including nature conservation, geographical distribution QH1-199.5
Acceso en línea:	https://doaj.org/article/ad9c3c4fb91d4d9e8a27fe3deaac8075
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:ad9c3c4fb91d4d9e8a27fe3deaac8075
record_format	dspace
spelling	oai:doaj.org-article:ad9c3c4fb91d4d9e8a27fe3deaac80752021-11-05T12:51:44ZBiomass Mapping for an Improved Understanding of the Contribution of Cold-Water Coral Carbonate Mounds to C and N Cycling2296-774510.3389/fmars.2021.721062https://doaj.org/article/ad9c3c4fb91d4d9e8a27fe3deaac80752021-11-01T00:00:00Zhttps://www.frontiersin.org/articles/10.3389/fmars.2021.721062/fullhttps://doaj.org/toc/2296-7745This study used a novel approach combining biological, environmental, and ecosystem function data of the Logachev cold-water coral carbonate mound province to predictively map coral framework (bio)mass. A more accurate representation and quantification of cold-water coral reef ecosystem functions such as Carbon and Nitrogen stock and turnover were given by accounting for the spatial heterogeneity. Our results indicate that 45% is covered by dead and only 3% by live coral framework. The remaining 51%, is covered by fine sediments. It is estimated that 75,034–93,534 tons (T) of live coral framework is present in the area, of which ∼10% (7,747–9,316 T) consists of Cinorg and ∼1% (411–1,061 T) of Corg. A much larger amount of 3,485,828–4,357,435 T (60:1 dead:live ratio) dead coral framework contained ∼11% (418,299–522,892 T) Cinorg and <1% (0–16 T) Corg. The nutrient turnover by dead coral framework is the largest, contributing 45–51% (2,596–3,626 T) C year–1 and 30–62% (290–1,989 T) N year–1 to the total turnover in the area. Live coral framework turns over 1,656–2,828 T C year–1 and 53–286 T N year–1. Sediments contribute between 1,216–1,512 T C year–1 and 629–919 T N year–1 to the area’s benthic organic matter mineralization. However, this amount is likely higher as sediments baffled by coral framework might play a much more critical role in reefs CN cycling than previously assumed. Our calculations showed that the area overturns 1–3.4 times the C compared to a soft-sediment area at a similar depth. With only 5–9% of the primary productivity reaching the corals via natural deposition, this study indicated that the supply of food largely depends on local hydrodynamical food supply mechanisms and the reefs ability to retain and recycle nutrients. Climate-induced changes in primary production, local hydrodynamical food supply and the dissolution of particle-baffling coral framework could have severe implications for the survival and functioning of cold-water coral reefs.Laurence Helene De ClippeleAnna-Selma van der KaadenSandra Rosa MaierEvert de FroeJ. Murray RobertsFrontiers Media S.A.articlebiomassecosystem functionscarbon cyclenitrogen cyclepredictive mappingcold-water coral carbonate moundScienceQGeneral. Including nature conservation, geographical distributionQH1-199.5ENFrontiers in Marine Science, Vol 8 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	biomass ecosystem functions carbon cycle nitrogen cycle predictive mapping cold-water coral carbonate mound Science Q General. Including nature conservation, geographical distribution QH1-199.5
spellingShingle	biomass ecosystem functions carbon cycle nitrogen cycle predictive mapping cold-water coral carbonate mound Science Q General. Including nature conservation, geographical distribution QH1-199.5 Laurence Helene De Clippele Anna-Selma van der Kaaden Sandra Rosa Maier Evert de Froe J. Murray Roberts Biomass Mapping for an Improved Understanding of the Contribution of Cold-Water Coral Carbonate Mounds to C and N Cycling
description	This study used a novel approach combining biological, environmental, and ecosystem function data of the Logachev cold-water coral carbonate mound province to predictively map coral framework (bio)mass. A more accurate representation and quantification of cold-water coral reef ecosystem functions such as Carbon and Nitrogen stock and turnover were given by accounting for the spatial heterogeneity. Our results indicate that 45% is covered by dead and only 3% by live coral framework. The remaining 51%, is covered by fine sediments. It is estimated that 75,034–93,534 tons (T) of live coral framework is present in the area, of which ∼10% (7,747–9,316 T) consists of Cinorg and ∼1% (411–1,061 T) of Corg. A much larger amount of 3,485,828–4,357,435 T (60:1 dead:live ratio) dead coral framework contained ∼11% (418,299–522,892 T) Cinorg and <1% (0–16 T) Corg. The nutrient turnover by dead coral framework is the largest, contributing 45–51% (2,596–3,626 T) C year–1 and 30–62% (290–1,989 T) N year–1 to the total turnover in the area. Live coral framework turns over 1,656–2,828 T C year–1 and 53–286 T N year–1. Sediments contribute between 1,216–1,512 T C year–1 and 629–919 T N year–1 to the area’s benthic organic matter mineralization. However, this amount is likely higher as sediments baffled by coral framework might play a much more critical role in reefs CN cycling than previously assumed. Our calculations showed that the area overturns 1–3.4 times the C compared to a soft-sediment area at a similar depth. With only 5–9% of the primary productivity reaching the corals via natural deposition, this study indicated that the supply of food largely depends on local hydrodynamical food supply mechanisms and the reefs ability to retain and recycle nutrients. Climate-induced changes in primary production, local hydrodynamical food supply and the dissolution of particle-baffling coral framework could have severe implications for the survival and functioning of cold-water coral reefs.
format	article
author	Laurence Helene De Clippele Anna-Selma van der Kaaden Sandra Rosa Maier Evert de Froe J. Murray Roberts
author_facet	Laurence Helene De Clippele Anna-Selma van der Kaaden Sandra Rosa Maier Evert de Froe J. Murray Roberts
author_sort	Laurence Helene De Clippele
title	Biomass Mapping for an Improved Understanding of the Contribution of Cold-Water Coral Carbonate Mounds to C and N Cycling
title_short	Biomass Mapping for an Improved Understanding of the Contribution of Cold-Water Coral Carbonate Mounds to C and N Cycling
title_full	Biomass Mapping for an Improved Understanding of the Contribution of Cold-Water Coral Carbonate Mounds to C and N Cycling
title_fullStr	Biomass Mapping for an Improved Understanding of the Contribution of Cold-Water Coral Carbonate Mounds to C and N Cycling
title_full_unstemmed	Biomass Mapping for an Improved Understanding of the Contribution of Cold-Water Coral Carbonate Mounds to C and N Cycling
title_sort	biomass mapping for an improved understanding of the contribution of cold-water coral carbonate mounds to c and n cycling
publisher	Frontiers Media S.A.
publishDate	2021
url	https://doaj.org/article/ad9c3c4fb91d4d9e8a27fe3deaac8075
work_keys_str_mv	AT laurencehelenedeclippele biomassmappingforanimprovedunderstandingofthecontributionofcoldwatercoralcarbonatemoundstocandncycling AT annaselmavanderkaaden biomassmappingforanimprovedunderstandingofthecontributionofcoldwatercoralcarbonatemoundstocandncycling AT sandrarosamaier biomassmappingforanimprovedunderstandingofthecontributionofcoldwatercoralcarbonatemoundstocandncycling AT evertdefroe biomassmappingforanimprovedunderstandingofthecontributionofcoldwatercoralcarbonatemoundstocandncycling AT jmurrayroberts biomassmappingforanimprovedunderstandingofthecontributionofcoldwatercoralcarbonatemoundstocandncycling
_version_	1718444249653968896

Biomass Mapping for an Improved Understanding of the Contribution of Cold-Water Coral Carbonate Mounds to C and N Cycling

Ejemplares similares