Date of Award
2008
Document Type
Thesis
Publication Status
Version of Record
Submission Date
October 2026
Abstract
The role of Serrivomer beanii in bathypelagic food webs is poorly known, but abundance and biomass estimates from the 2004 G.O. Sars MAR-ECO Expedition suggest it to have a high level of importance. MAR-ECO, a Census of Marine Life field project, has allowed us to increase our knowledge of S. beanii through spatial analysis, including the congeneric species Serrivomer lanceolatoides, and trophic analysis. Serrivomer beanii abundance and biomass exhibited a decreasing trend along the northern Mid-Atlantic Ridge from north to south. In terms of size, S. beanii was found to increase as distance from the ridge decreased, suggesting a topographic aggregation strategy. The diet of S. beanii consisted of crustaceans, cephalopods, and teleosts. The trophic results of this study reveal a likely "alternative" trophic pathway in the deep mid-North Atlantic, and perhaps other, bathypelagic ecosystems: higher trophic-level predators are supported by micronektonic invertebrates as primary prey.
Extent
ix, 59 p. : ill. (some col.).
Recommended Citation
Geidner, Megan E., "Spatial and trophic ecology of the sawtooth eel, Serrivomer beanii, a biomass-dominant bathypelagic fish over the northern Mid-Atlantic ridge" (2008). Electronic Theses and Dissertations 2000 - 2009. 1563.
https://digitalcommons.fau.edu/etd_general_5/1563
Identifier
FADT165941
Comments
by Megan E. Geidner.|Thesis (M.S.)--Florida Atlantic University, 2008.|Includes bibliography.|Electronic reproduction. Boca Raton, Fla., 2008. Mode of access: World Wide Web.|by Megan E. Geidner.