Record Details
Abundance and grazing effects of Cyclosalpa bakeri in the subarctic Pacific
ScholarsArchive at Oregon State University
| Field | Value |
|---|---|
| Title | Abundance and grazing effects of Cyclosalpa bakeri in the subarctic Pacific |
| Names |
Madin, L. P.
(creator) Purcell, J. E. (creator) Miller, Charles B. (creator) |
| Date Issued | 2010-08-17T18:27:21Z (iso8601) |
| Note | Article appears in Marine Ecology Progress Series and is copyrighted by Inter Research. |
| Abstract | Ecological effects of populations of the salp Cyclosalpa bakeri were studied in late summer of 1984, 1987 and 1988 dunng the Subarctic Pacific Ecosystem Research (SUPER) project at Station P in the northeast Pacific. Salps occurred largely in the top 60 m, with biomass values ranging from 76 to 3621 mg C m⁻². Three approaches were taken to estimate the grazing impact of these populations. C . bakeri removed from 1.6 to 136.6% of daily primary production and 1.3 to 56.8% of the diatom stocks in August 1988. On average, feeding rates of the salps predicted clearance of all particles ≥5.0 μm from 1.2 to 49.2% of the water column per day in 1984 and 1988. Although excretion of dissolved N appears negligible, production of fecal C and N can be high, as much as 875 mg C and 110 mg N m⁻² d⁻¹ at the highest population density sampled Although the salps probably do not have a significant grazing impact on the small cells (≤5.0 μm) which are responsible for most of the production, they may be important in controlling populations of diatoms which typically occur in late summer at Station P. |
| Genre | Article |
| Topic | salps |
| Identifier | http://hdl.handle.net/1957/17726 |
