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Factors affecting nematode biomass, length and width from the shelf to the deep sea

Karline Soetaert, Maria Franco, Nikolaos Lampadariou, Agnes Muthumbi, Maaike Steyaert, Leen Vandepitte, Edward vanden Berghe and Jan Vanaverbeke UGent (2009) MARINE ECOLOGY-PROGRESS SERIES. 392. p.123-132
abstract
The decrease of nematode size with water depth is well documented in the literature. However, many nematode size data sets originate from bathymetric gradients, with strong bias towards deep-water, muddy sediments. This has narrowed our perception of the environmental factors that may influence nematode morphometry. Here we perform a morphometric analysis with data collected from a variety of sampling locations in the Indian Ocean and around Europe at a wider range of depths and sediment types. All nematode size descriptors decreased significantly with water depth, which explained more than 60% of total variation. This trend was most pronounced for mean nematode dry weight, which decreased by similar to 20% for every doubling in water depth. This coefficient of decrease was smaller than the described decline in food deposition with depth, as estimated from sediment community oxygen consumption rates (similar to 35%), but on the same order of magnitude as the decrease in nematode density. Order of magnitude estimates based on these trends suggest that nematodes contribute about 7.5% to benthic metabolism over the depth range. In contrast to nematode dry weight, the decrease in nematode length and width with water depth was less steep. However, nematode length was also affected by grain size, where shallow-water coarse sediments were inhabited by longer nematodes. Nematodes from the oligotrophic Aegean Sea were characterised by low length values and high width values, probably as an adaptation to sediments poor in organic matter. These observations suggest that local factors can also be very important for shaping the morphometric landscape of the nematode communities.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
SUBTIDAL SANDBANKS, SOUTHERN BIGHT, MEDITERRANEAN-SEA, STANDING STOCK, BATHYMETRIC PATTERNS, METAZOAN MEIOBENTHOS, BODY-SIZE, NORTH-SEA, NE ATLANTIC, PHYTOPLANKTON BLOOM DEPOSITION, Size-depth relationship, Respiration, Morphometry, Nematode
journal title
MARINE ECOLOGY-PROGRESS SERIES
Mar. Ecol.-Prog. Ser.
volume
392
pages
10 pages
Web of Science type
Article
Web of Science id
000271828700011
JCR category
MARINE & FRESHWATER BIOLOGY
JCR impact factor
2.519 (2009)
JCR rank
11/88 (2009)
JCR quartile
1 (2009)
ISSN
0171-8630
DOI
10.3354/meps08202
language
English
UGent publication?
yes
classification
A1
id
927280
handle
http://hdl.handle.net/1854/LU-927280
date created
2010-04-16 11:32:30
date last changed
2010-04-26 11:46:53
@article{927280,
  abstract     = {The decrease of nematode size with water depth is well documented in the literature. However, many nematode size data sets originate from bathymetric gradients, with strong bias towards deep-water, muddy sediments. This has narrowed our perception of the environmental factors that may influence nematode morphometry. Here we perform a morphometric analysis with data collected from a variety of sampling locations in the Indian Ocean and around Europe at a wider range of depths and sediment types. All nematode size descriptors decreased significantly with water depth, which explained more than 60\% of total variation. This trend was most pronounced for mean nematode dry weight, which decreased by similar to 20\% for every doubling in water depth. This coefficient of decrease was smaller than the described decline in food deposition with depth, as estimated from sediment community oxygen consumption rates (similar to 35\%), but on the same order of magnitude as the decrease in nematode density. Order of magnitude estimates based on these trends suggest that nematodes contribute about 7.5\% to benthic metabolism over the depth range. In contrast to nematode dry weight, the decrease in nematode length and width with water depth was less steep. However, nematode length was also affected by grain size, where shallow-water coarse sediments were inhabited by longer nematodes. Nematodes from the oligotrophic Aegean Sea were characterised by low length values and high width values, probably as an adaptation to sediments poor in organic matter. These observations suggest that local factors can also be very important for shaping the morphometric landscape of the nematode communities.},
  author       = {Soetaert, Karline and Franco, Maria and Lampadariou, Nikolaos and Muthumbi, Agnes and Steyaert, Maaike and Vandepitte, Leen and vanden Berghe, Edward and Vanaverbeke, Jan},
  issn         = {0171-8630},
  journal      = {MARINE ECOLOGY-PROGRESS SERIES},
  keyword      = {SUBTIDAL SANDBANKS,SOUTHERN BIGHT,MEDITERRANEAN-SEA,STANDING STOCK,BATHYMETRIC PATTERNS,METAZOAN MEIOBENTHOS,BODY-SIZE,NORTH-SEA,NE ATLANTIC,PHYTOPLANKTON BLOOM DEPOSITION,Size-depth relationship,Respiration,Morphometry,Nematode},
  language     = {eng},
  pages        = {123--132},
  title        = {Factors affecting nematode biomass, length and width from the shelf to the deep sea},
  url          = {http://dx.doi.org/10.3354/meps08202},
  volume       = {392},
  year         = {2009},
}

Chicago
Soetaert, Karline, Maria Franco, Nikolaos Lampadariou, Agnes Muthumbi, Maaike Steyaert, Leen Vandepitte, Edward vanden Berghe, and Jan Vanaverbeke. 2009. “Factors Affecting Nematode Biomass, Length and Width from the Shelf to the Deep Sea.” Marine Ecology-progress Series 392: 123–132.
APA
Soetaert, K., Franco, M., Lampadariou, N., Muthumbi, A., Steyaert, M., Vandepitte, L., vanden Berghe, E., et al. (2009). Factors affecting nematode biomass, length and width from the shelf to the deep sea. MARINE ECOLOGY-PROGRESS SERIES, 392, 123–132.
Vancouver
1.
Soetaert K, Franco M, Lampadariou N, Muthumbi A, Steyaert M, Vandepitte L, et al. Factors affecting nematode biomass, length and width from the shelf to the deep sea. MARINE ECOLOGY-PROGRESS SERIES. 2009;392:123–32.
MLA
Soetaert, Karline, Maria Franco, Nikolaos Lampadariou, et al. “Factors Affecting Nematode Biomass, Length and Width from the Shelf to the Deep Sea.” MARINE ECOLOGY-PROGRESS SERIES 392 (2009): 123–132. Print.