Carbon flux and recycling associated with zooplanktonic fecal pellets on the shelf of the Middle Atlantic Bight

P. V Z Lane, Sharon L Smith, J. L. Urban, P. E. Biscaye

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Sediment traps were deployed for 5 days during March 1988, at 20 and 33 m in 42 m of water over the continental shelf off Norfolk, Virginia (SEEP-II study area). During the sediment trap deployment, a time-series study determined the community and age-structure of copepods as well as the standing stocks, production rates and settling velocities of fecal pellets. Fecal pellets comprised less than 1% of the total particulate carbon collected in the sediment traps and ca 0.3% of particulate carbon found in the water column. Mean fecal pellet production by adult copepods feeding in natural seawater ranged from 1 to 2 pellets animal-1 day-1, equalling approximately 0.1-0.3 μm C day-1.Average fecal pellet volume ranged from 4 × 105 μm3 for pellets produced by Centropages typicus females to 14 × 105 μm3, for pellets produced by Calanus funmarchicus females. The pellets produced by C. finmarchicus were important in the downward vertical transport of phytoplankton carbon, while pellets produced by smaller copepods were primarily recycled in the water column. Lateral advective processes altered the species composition of zooplankton at our study site. The onshore and offshore movement of different zooplankton communities with varying size-structure could have a substantial impact on the magnitude of vertical carbon transport on continental shelves.

Original languageEnglish
Pages (from-to)437-457
Number of pages21
JournalDeep-Sea Research Part II
Volume41
Issue number2-3
DOIs
StatePublished - Jan 1 1994
Externally publishedYes

Fingerprint

fecal pellet
carbon flux
recycling
pellets
sediment trap
carbon
continental shelf
zooplankton
water column
settling velocity
Copepoda
size structure
age structure
community structure
particulates
phytoplankton
time series
seawater
animal
Calanus finmarchicus

ASJC Scopus subject areas

  • Aquatic Science
  • Geology
  • Oceanography
  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Carbon flux and recycling associated with zooplanktonic fecal pellets on the shelf of the Middle Atlantic Bight. / Lane, P. V Z; Smith, Sharon L; Urban, J. L.; Biscaye, P. E.

In: Deep-Sea Research Part II, Vol. 41, No. 2-3, 01.01.1994, p. 437-457.

Research output: Contribution to journalArticle

Lane, P. V Z ; Smith, Sharon L ; Urban, J. L. ; Biscaye, P. E. / Carbon flux and recycling associated with zooplanktonic fecal pellets on the shelf of the Middle Atlantic Bight. In: Deep-Sea Research Part II. 1994 ; Vol. 41, No. 2-3. pp. 437-457.
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