Matches in SemOpenAlex for { <https://semopenalex.org/work/W4386028298> ?p ?o ?g. }
Showing items 1 to 70 of
70
with 100 items per page.
- W4386028298 abstract "Abstract. The nitrogen (N) isotope composition (δ15N) of cold-water corals is a promising proxy for reconstructing past ocean N cycling, as a strong correlation was found between the δ15N of the organic nitrogen preserved in coral skeletons and the δ15N of sinking particulate organic matter exported from the surface ocean. However, a large offset of 8–9 ‰ between the δ15N recorded by the coral and that of export remains unexplained. The 8–9 ‰ offset may signal a potential sensitivity of the proxy to food web structure, an unusual large trophic isotope effect or a biosynthetic δ15N offset between the coral’s soft tissue and skeletal tissues, or some combinations of these factors. To understand the origin of the offset and further validate the proxy, we investigated the trophic ecology of the scleractinan cold water coral Balanophyllia elegans. A long-term incubation experiment of B. elegans fed on an isotopically controlled diet yielded a canonical trophic isotope effect of 3.0 ± 0.1 ‰ between coral soft tissue and the Artemia prey. The trophic isotope effect was not detectably influenced by sustained food limitation. A long N turnover of coral soft tissue of 291 ± 15 days in the well-fed incubations indicates that the coral skeleton is not apt to record seasonal difference in diet δ15N. Specimens of B. elegans from the shallow subtidal zone near San Juan Channel (WA, USA) revealed a modest difference between soft and skeletal tissue δ15N of 1.2 ± 0.6 ‰. The δ15N of the coral soft tissue was 12.0 ± 0.6 ‰, which was ~6 ‰ higher than that of suspended organic material that was comprised dominantly of phytoplankton – suggesting that the latter is not the primary component of B. elegans’ diet. An analysis of size-fractionated net tow material suggests that B. elegans fed predominantly on a size class of zooplankton ≥ 500 µm, implicating a two-level trophic transfer between phytoplankton material and coral tissue. These results portend a sensitivity of cold-water coral δ15N to regional food web structure that must be heeded in paleoceanographic studies of ocean N cycling." @default.
- W4386028298 created "2023-08-22" @default.
- W4386028298 creator A5000152881 @default.
- W4386028298 creator A5002273389 @default.
- W4386028298 creator A5009241583 @default.
- W4386028298 creator A5023868772 @default.
- W4386028298 creator A5029779082 @default.
- W4386028298 creator A5039622787 @default.
- W4386028298 creator A5059503338 @default.
- W4386028298 date "2023-08-21" @default.
- W4386028298 modified "2023-10-14" @default.
- W4386028298 title "Zooplankton as the primary diet for cold-water scleractinian corals (CWCs): implications for the CWC marine N cycle proxy and trophic ecology" @default.
- W4386028298 doi "https://doi.org/10.5194/bg-2023-127" @default.
- W4386028298 hasPublicationYear "2023" @default.
- W4386028298 type Work @default.
- W4386028298 citedByCount "0" @default.
- W4386028298 crossrefType "posted-content" @default.
- W4386028298 hasAuthorship W4386028298A5000152881 @default.
- W4386028298 hasAuthorship W4386028298A5002273389 @default.
- W4386028298 hasAuthorship W4386028298A5009241583 @default.
- W4386028298 hasAuthorship W4386028298A5023868772 @default.
- W4386028298 hasAuthorship W4386028298A5029779082 @default.
- W4386028298 hasAuthorship W4386028298A5039622787 @default.
- W4386028298 hasAuthorship W4386028298A5059503338 @default.
- W4386028298 hasBestOaLocation W43860282981 @default.
- W4386028298 hasConcept C109931610 @default.
- W4386028298 hasConcept C111368507 @default.
- W4386028298 hasConcept C121332964 @default.
- W4386028298 hasConcept C127313418 @default.
- W4386028298 hasConcept C143020374 @default.
- W4386028298 hasConcept C146458902 @default.
- W4386028298 hasConcept C156398188 @default.
- W4386028298 hasConcept C158836135 @default.
- W4386028298 hasConcept C18903297 @default.
- W4386028298 hasConcept C22117777 @default.
- W4386028298 hasConcept C2780401108 @default.
- W4386028298 hasConcept C62520636 @default.
- W4386028298 hasConcept C72958200 @default.
- W4386028298 hasConcept C86803240 @default.
- W4386028298 hasConceptScore W4386028298C109931610 @default.
- W4386028298 hasConceptScore W4386028298C111368507 @default.
- W4386028298 hasConceptScore W4386028298C121332964 @default.
- W4386028298 hasConceptScore W4386028298C127313418 @default.
- W4386028298 hasConceptScore W4386028298C143020374 @default.
- W4386028298 hasConceptScore W4386028298C146458902 @default.
- W4386028298 hasConceptScore W4386028298C156398188 @default.
- W4386028298 hasConceptScore W4386028298C158836135 @default.
- W4386028298 hasConceptScore W4386028298C18903297 @default.
- W4386028298 hasConceptScore W4386028298C22117777 @default.
- W4386028298 hasConceptScore W4386028298C2780401108 @default.
- W4386028298 hasConceptScore W4386028298C62520636 @default.
- W4386028298 hasConceptScore W4386028298C72958200 @default.
- W4386028298 hasConceptScore W4386028298C86803240 @default.
- W4386028298 hasFunder F4320332171 @default.
- W4386028298 hasLocation W43860282981 @default.
- W4386028298 hasOpenAccess W4386028298 @default.
- W4386028298 hasPrimaryLocation W43860282981 @default.
- W4386028298 hasRelatedWork W2036818181 @default.
- W4386028298 hasRelatedWork W2078571120 @default.
- W4386028298 hasRelatedWork W2080792638 @default.
- W4386028298 hasRelatedWork W2268553625 @default.
- W4386028298 hasRelatedWork W2282277134 @default.
- W4386028298 hasRelatedWork W2791519345 @default.
- W4386028298 hasRelatedWork W296117252 @default.
- W4386028298 hasRelatedWork W3024836011 @default.
- W4386028298 hasRelatedWork W4364359842 @default.
- W4386028298 hasRelatedWork W2183491927 @default.
- W4386028298 isParatext "false" @default.
- W4386028298 isRetracted "false" @default.
- W4386028298 workType "article" @default.