干旱区生态环境知识资源中心(Arid): Macroinvertebrates food web and trophic relations of a peri urban mangrove system in a semi-arid region, Gulf of California, M acute accent exico

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DOI	10.1016/j.jmarsys.2023.103864
	Macroinvertebrates food web and trophic relations of a peri urban mangrove system in a semi-arid region, Gulf of California, M acute accent exico
	Medina-Contreras, Diana; Sanchez, Alberto; Arenas, Fernando
通讯作者	Medina-Contreras, D
来源期刊	JOURNAL OF MARINE SYSTEMS
ISSN	0924-7963
EISSN	1879-1573
出版年	2023
卷号	240
英文摘要	Despite being structurally limited due to their latitudinal distribution and local climatic conditions, mangroves of the southwest Gulf of California present productivity and carbon storage rates similar or higher than that of tropical mangroves. Despite the importance of their contribution to marine and atmospheric dynamics, few studies exist focused on food web structures in such ecosystems. In order to analyze trophic structure and dy-namics of a mangrove system in the Gulf of California, the isotopic composition, trophic position, isotopic niche, and trophic pathways were studied using the statistical packages TrophicPosition (TP), SIBER, and Simmr. Isotopic values of C and N were obtained for 244 samples of carbon sources and invertebrate consumers which were classified into six trophic guilds. The delta 13C values of carbon sources varied from-30.7 (Rhizophora mangle) to -15.6%0 (Caulerpa sertularioides) and for consumers varied from -22.3%0 (Aratus sp) to-13.2 (Callinectes arcuatus). Herbivores generally had depleted 13C values related to those of the other trophic guilds. The mac-roinvertebrate communities' mean TP values (2.6: 2.0-3.5) indicate a composition of primary and secondary consumers, exhibiting a clear separation between trophic guilds. Isotopic niche width (TA) of the community (14.1) suggests niche segregation, specially between herbivores and deposit feeders. Those trophic guilds are the first consumers and intermediaries for two distinct trophic pathways, one derived from detritus and mangroves and the other from microphytobenthos (MPB). Three groups of primary sources were identified contributing >70% of carbon, representing the primary base of several trophic pathways that sustain different consumer guilds: (1) mangrove-detritus, herbivorous crabs, (2) MPB-Sedimentary organic carbon, supporting mainly de-posit feeders and filter feeders, and (3) Seston-MPB, supporting mainly omnivorous shrimp. Overall, the iden-tified pathways potentially sustain fish communities, which due to their movement export energy from mangroves to coastal food webs.
英文关键词	Secondary productivity Stable isotopes Ecosystem trophic ecology Trophic pathways
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000942611100001
WOS关键词	STABLE-ISOTOPES ; BENTHIC MICROALGAE ; RIVER ESTUARY ; RESOURCE UTILIZATION ; ORGANIC-MATTER ; MIXING MODELS ; CARBON ; CRABS ; HABITATS ; FLOWS
WOS类目	Geosciences, Multidisciplinary ; Marine & Freshwater Biology ; Oceanography
WOS研究方向	Geology ; Marine & Freshwater Biology ; Oceanography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397476
推荐引用方式 GB/T 7714	Medina-Contreras, Diana,Sanchez, Alberto,Arenas, Fernando. Macroinvertebrates food web and trophic relations of a peri urban mangrove system in a semi-arid region, Gulf of California, M acute accent exico[J],2023,240.
APA	Medina-Contreras, Diana,Sanchez, Alberto,&Arenas, Fernando.(2023).Macroinvertebrates food web and trophic relations of a peri urban mangrove system in a semi-arid region, Gulf of California, M acute accent exico.JOURNAL OF MARINE SYSTEMS,240.
MLA	Medina-Contreras, Diana,et al."Macroinvertebrates food web and trophic relations of a peri urban mangrove system in a semi-arid region, Gulf of California, M acute accent exico".JOURNAL OF MARINE SYSTEMS 240(2023).