Evaluating estuarine habitats using secondary production as a proxy for food web support

doi:10.3354/meps09323

	Evaluating estuarine habitats using secondary production as a proxy for food web support
	Wong, Melisa C.; Peterson, Charles H.; Piehler, Michael F.
刊名	MARINE ECOLOGY PROGRESS SERIES
	2011
卷号	440 页码:11-25
关键词	Secondary production Estuarine habitats Food web support Habitat value Restoration Shoreline stabilization structure North Carolina
ISSN号	0171-8630
DOI	10.3354/meps09323
英文摘要	The management, restoration, and conservation of estuarine habitats would benefit from knowledge of habitat-specific functions that reflect important ecosystem services. Secondary production may provide a comprehensive metric of food web support because it synthesizes contributions of local primary production, food subsidies from other habitats, and the protective influences of habitat structure. Despite widespread perceptions of how habitats compare in food web contribution, few methodologically comparable studies on secondary production across multiple estuarine habitats exist. At field sites in North Carolina, USA, annual secondary production was estimated for macrobenthic infaunal and epifaunal communities in salt marshes, seagrass meadows, oyster reefs, intertidal and subtidal flats, and on shoreline stabilization structures. Habitats with hard emergent or biogenic structure generally exhibited higher secondary production than habitats lacking structure. Oyster reef had the highest secondary production, ranging from 467.3 to 853.7 g ash free dry mass (AFDM) m(-2) yr(-1), while shoreline stabilization structures ranked high because of dense epifaunal communities. Estimates of secondary production suggest ranking of natural habitats as oyster reef > salt marsh > seagrass > intertidal flat and subtidal flat. Undesirable impacts of shoreline stabilization structures on adjacent habitats made their inclusion in this ranking of food web support by habitat difficult. The importance of suspension feeders on oyster reefs, shoreline stabilization structures, and in some marshes suggests that secondary production patterns are partly influenced by external subsidies facilitated by support from habitat structure. Consequently, estuarine rehabilitation should include structural habitat elements that will contribute to ecosystem production at higher trophic levels. Without such habitat restoration, the fate of estuaries in the USA affected by anthropogenic stressors may be loss of habitat diversity and prevalence of low-trophic-supporting habitats.
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WOS研究方向	Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Oceanography
语种	英语
出版者	INTER-RESEARCH
WOS记录号	WOS:000296391900002
内容类型	期刊论文
源URL	[http://ir.fio.com.cn/handle/2SI8HI0U/4266]
专题	自然资源部第一海洋研究所
作者单位	Univ N Carolina Chapel Hill, Inst Marine Sci, Morehead City, NC 28557 USA
推荐引用方式 GB/T 7714	Wong, Melisa C.,Peterson, Charles H.,Piehler, Michael F.. Evaluating estuarine habitats using secondary production as a proxy for food web support[J]. MARINE ECOLOGY PROGRESS SERIES,2011,440:11-25.
APA	Wong, Melisa C.,Peterson, Charles H.,&Piehler, Michael F..(2011).Evaluating estuarine habitats using secondary production as a proxy for food web support.MARINE ECOLOGY PROGRESS SERIES,440,11-25.
MLA	Wong, Melisa C.,et al."Evaluating estuarine habitats using secondary production as a proxy for food web support".MARINE ECOLOGY PROGRESS SERIES 440(2011):11-25.