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Sources of primary production, benthic-pelagic coupling, and trophic relationships within the Northeast Water Polynya:insights from delta13C and delta15N analysis
Abstract
MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections MEPS 128:1-10 (1995) - doi:10.3354/meps128001 Sources of primary production, benthic-pelagic coupling, and trophic relationships within the Northeast Water Polynya: insights from δ13C and δ15N analysis Hobson KA, Ambrose WG Jr, Renaud PE We used stable carbon (13C/12C) and nitrogen (15N/14N) isotope analysis to investigate linkages between sources of primary production and the pelagic and benthic components of the Northeast Water (NEW) Polynya off northeastern Greenland. Ice algae was enriched in 13C (mean δ13C = -18.6 vs -27.9‰) and 15N (mean δ15N = 8.3 vs 4.9‰) over particulate organic matter (POM) suggesting that the relative importance of these sources might be traced isotopically. Most grazing crustaceans and filter-feeding bivalves had δ13C and δ15N values in the range of -21 to -23‰ and 7 to 9‰, respectively, indicating a direct pathway from POM. Close benthic-pelagic coupling was also confirmed for other benthic organisms examined with the exception of the predatory or deposit feeding echinoderms Ophioctin, Ophiacantha and Pontaster. Compared with other Arctic and temperate marine food webs, stable-carbon isotope values for the NEW Polynya were depleted in 13C. A δ15N trophic model that incorporated taxon-specific isotopic fractionation factors indicated that the NEW Polynya consisted of 4.5 to 5 trophic levels. Stable-isotope analysis may be well suited to establishing the importance of polynyas as sites of high primary productivity and tight benthic-pelagic coupling relative to regions of more permanent ice cover. Polynya . Stable isotopes . Carbon-13 . Nitrogen-15 . Ice algae . Primary production Full text in pdf format NextExport citation RSS - Facebook - Tweet - linkedIn Cited by Published in MEPS Vol. 128. Publication date: November 23, 1995 Print ISSN:0171-8630; Online ISSN:1616-1599 Copyright © 1995 Inter-Research.
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Cites
Stomach contents analysis—a review of methods and their application
Hyslop, E. J. (1980) · Journal of Fish Biology · doi:10.1111/j.1095-8649.1980.tb02775.x · Cited by 4,402
Using Stable Isotopes to Determine Seabird Trophic Relationships
Hobson, K. A., Piatt, J. F., & Pitocchelli, J. (1994) · The Journal of Animal Ecology · doi:10.2307/5256 · Cited by 862
Self-citationFood web structure on Georges Bank from stable C, N, and S isotopic compositions
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Food-Web structure and the fractionation of Carbon isotopes in the bering sea
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Natural Variations in 15N in the Marine Environment
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Annual cycle of sedimentation in relation to plankton ecology in western Kiel Bight
Smetacek, V. S. (1980) · Helmholtz Centre for Ocean Research Kiel (GEOMAR) · Cited by 156
Cited by
Fisk, A. T., Hobson, K. A., & Norstrom, R. J. (2001) · Environmental Science & Technology · doi:10.1021/es001459w · Cited by 719
Self-citationBraune, B. M., Outridge, P. M., Fisk, A. T., Muir, D. C. G., Helm, P. A., Hobbs, K., Hoekstra, P. F., Kuzyk, Z. A., Kwan, M., Letcher, R. J., et al. (2005) · Science of The Total Environment · doi:10.1016/j.scitotenv.2004.10.034 · Cited by 434
A review of ecogeochemistry approaches to estimating movements of marine animals
McMahon, K. W., Hamady, L. L., & Thorrold, S. R. (2013) · Limnology and Oceanography · doi:10.4319/lo.2013.58.2.0697 · Cited by 398
Graeve, M., Kattner, G., & Piepenburg, D. (1997) · Polar Biology · doi:10.1007/s003000050158 · Cited by 264
Søreide, J. E., Hop, H., Carroll, M. L., Falk-Petersen, S., & Hegseth, E. N. (2006) · Progress in Oceanography · doi:10.1016/j.pocean.2006.06.001 · Cited by 261
Metadata
- Authors
- Hobson, K., Ambrose, W., & Renaud, P.
- Venue
- Marine Ecology Progress Series
- Publisher
- Inter-Research Science Center
- Published
- 1995
- Volume
- 128
- Pages
- 1-10
- ISSN
- 0171-8630 (ISSN-L)
- 1616-1599
- OpenAlex
- W2621678793
- Cited by
- 398
- References
- 8
- FWCI
- 4.56
- Type
- journal article
- Language
- en
- Open access
- closed
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