Low-density particles as potential nitrogenous foods for benthos

L. M. Mayer, P. A. Jumars, G. L. Taghon, S. A. Macko, S. Trumbore

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Abstract

Low-density separates were highly enriched in total organic matter relative to the high-density phases. Enzymatically hydrolyzable protein concentrations in low-density separates were as much as 57-fold higher than the corresponding high-density separates, though some samples from Puget Sound and the Mediterranean Sea showed no enrichment at all. Low-density phases without nutritional enrichments were usually composed of woody debris. In spite of the organic richness of the low-density phase, it makes up more than a minor fraction of either total sedimentary organic matter or its nutritional component. Addition of anomalously high concentrations of low-density materials to sediments caused a deposit-feeding spionid polychaete to reduce ingestion rates. -from Authors

Original languageEnglish (US)
Pages (from-to)373-389
Number of pages17
JournalJournal of Marine Research
Volume51
Issue number2
DOIs
Publication statusPublished - Jan 1 1993
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Oceanography

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