Natural 14C in Saccoglossus bromophenolosus compared to 14C in surrounding sediments
MetadataShow full item record
KeywordNatural radiocarbon abundance; Intertidal; Benthos; Macrofauna; Halogenated organic compounds
The natural radiocarbon (14C) content of whole, gut voided Saccoglossus bromophenolosus collected in Lowes Cove, Maine, USA, was compared with that of a non-voided worm, sectioned individuals, and the natural product 2,4-dibromophenol (2,4-DBP) isolated from S. bromophenolosus. In all cases, the 14C content was greater than that of the sediment from which the enteropneusts were collected. The 14C content of 2 polychaetes, Glycera dibranchiata and Clymenella torquata, also collected from Lowes Cove, were similarly enriched in 14C compared to the bulk sediment. These results show that all 3 species consumed recently fixed carbon that was much newer than organic carbon in the bulk sediment. The value (+10.4‰) obtained for 2,4-DBP isolated from S. bromophenolosus in this study differs from that reported in a previous study (–170‰). The discrepancy is attributed to methodological differences. The importance of selecting an appropriate method when isolating compounds for natural abundance 14C analysis is discussed.
Author Posting. © Inter-Research, 2006. This article is posted here by permission of Inter-Research for personal use, not for redistribution. The definitive version was published in Marine Ecology Progress Series 324 (2006): 167-172, doi:10.3354/meps324167.
Showing items related by title, author, creator and subject.
Minimum entropy decomposition : unsupervised oligotyping for sensitive partitioning of high-throughput marker gene sequences Eren, A. Murat; Morrison, Hilary G.; Lescault, Pamela J.; Reveillaud, Julie; Vineis, Joseph H.; Sogin, Mitchell L. (Nature Publishing Group, 2014-10-17)Molecular microbial ecology investigations often employ large marker gene datasets, for example, ribosomal RNAs, to represent the occurrence of single-cell genomes in microbial communities. Massively parallel DNA sequencing ...
Evidence for quorum sensing and differential metabolite production by a marine bacterium in response to DMSP Johnson, Winifred M.; Kido Soule, Melissa C.; Kujawinski, Elizabeth B. (Nature Publishing Group, 2016-02-16)Microbes, the foundation of the marine foodweb, do not function in isolation, but rather rely on molecular level interactions among species to thrive. Although certain types of interactions between autotrophic and heterotrophic ...
Read, Betsy A.; Kegel, Jessica; Klute, Mary J.; Kuo, Alan J.; Lefebvre, Stephane C.; Maumus, Florian; Mayer, Christoph; Miller, John; Monier, Adam; Salamov, Asaf; Young, Jeremy; Aguilar, Maria; Claverie, Jean-Michel; Frickenhaus, Stephan; Gonzalez, Karina; Herman, Emily K.; Lin, Yao-Cheng; Napier, Johnathan; Ogata, Hiroyuki; Sarno, Analissa F.; Shmutz, Jeremy; Schroeder, Declan C.; de Vargas, Colomban; Verret, Frederic; von Dassow, Peter; Valentin, Klaus; Van de Peer, Yves; Wheeler, Glen L.; Emiliania huxleyi Annotation Consortium; Dacks, Joel B.; Delwiche, Charles F.; Dyhrman, Sonya T.; Glockne, Gernot; Joh, Uwe; Richards, Thomas; Worden, Alexandra Z.; Zhang, Xiaoyu; Grigoriev, Igor V. (Nature Publishing Group, 2013-07-10)Coccolithophores have influenced the global climate for over 200 million years1. These marine phytoplankton can account for 20 per cent of total carbon fixation in some systems2. They form blooms that can occupy hundreds ...