{"refrec":{"BRefID":290478,"RR":"<b>Prouty, N.G.; Mienis, F.; Campbell-Swarzenski, P.; Roark, E.B.; Davies, A.J.; Robertson, C.M.; Duineveld, G.; Ross, S.W.; Rhode, M.; Demopoulos, A.W.J.</b> (2017). Seasonal variability in the source and composition of particulate matter in the depositional zone of Baltimore Canyon, U.S. Mid-Atlantic Bight. <i>Deep-Sea Res., Part 1, Oceanogr. Res. Pap. 127</i>: 77-89. <a href=\"https://dx.doi.org/10.1016/j.dsr.2017.08.004\" target=\"_blank\">https://dx.doi.org/10.1016/j.dsr.2017.08.004</a>","BEntID":282518,"PublicFlag":1,"CheckedFlag":1,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Deep-Sea Res., Part 1, Oceanogr. Res. Pap. 127</i>: 77-89. <a href=\"https://dx.doi.org/10.1016/j.dsr.2017.08.004\" target=\"_blank\">https://dx.doi.org/10.1016/j.dsr.2017.08.004</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Prouty, N.G.; Mienis, F.; Campbell-Swarzenski, P.; Roark, E.B.; Davies, A.J.; Robertson, C.M.; Duineveld, G.; Ross, S.W.; Rhode, M.; Demopoulos, A.W.J.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Prouty, N.G. <i>et al.</i>","Englishabstract":"Submarine canyons are often hotspots of biomass due to enhanced productivity and funneling of organic matterof marine and terrestrial origin. However, most deep-sea canyons remain poorly studied in terms of their role asconduits of terrestrial and marine particles. A multi-tracer geochemical investigation of particles collectedyearlong by a sediment trap in Baltimore Canyon on the US Mid-Atlantic Bight (MAB) revealed temporalvariability in source, transport, and fate of particulate matter. Both organic biomarker composition (sterol and nalkanes)and bulk characteristics (δ13C, Δ14C, Chl-a) suggest that while on average the annual contribution ofterrestrial and marine organic matter sources are similar, 42% and 52% respectively, marine sources dominate.Elevated Chlorophyll-a and sterol concentrations during the spring sampling period highlight a seasonal influx ofrelatively fresh phytodetritus. In addition, the contemporaneous increase in the particle reactive micronutrientscadmium (Cd) and molybdenum (Mo) in the spring suggest increased scavenging, aggregation, and sinking ofphytodetrital biomass in response to enhanced surface production within the nutricline. While tidally drivencurrents within the canyon resuspend sediment between 200 and 600 m, resulting in the formation of a nepheloidlayer rich in lithogenic material, near-bed sediment remobilization in the canyon depositional zone wasminimal. Instead, vertical transport and lateral transport across the continental margin were the dominantprocesses driving seasonal input of particulate matter. In turn, seasonal variability in deposited particulate organicmatter is likely linked to benthic faunal composition and ecosystem scale carbon cycling.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Seasonal variability in the source and composition of particulate matter in the depositional zone of Baltimore Canyon, U.S. Mid-Atlantic Bight","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"Submarine canyons; Deep-sea ecosystems; Sediment trap; Geochemical analyses; Organic matter","OtherDescriptors":null,"Notes":null,"AnaPub":2017,"MonPub":null,"DateUpdate":"2018-02-13","DateCreate":"2017-11-02","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000412966900009","VABBcode":null,"OpenAcc":0,"DOI":"10.1016/j.dsr.2017.08.004"},"refs":null,"anarec":{"AnaID":290478,"PubliDate":2017,"Pagination":"77-89","XtraPublOfAnaID":null,"ISBN":null,"Volume":"127","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45506,"SerRR":"Deep-Sea Research, Part I. 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