Article

 

Seasonal patterns of alkenone production in the subtropical oligotrophic North Pacific Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/articles/8k71nj53x

Descriptions

Attribute NameValues
Creator
Abstract
  • Seasonal alkenone concentrations, production rates, and unsaturation patterns (U₃₇ᴷ') were measured at station ALOHA in the oligotrophic subtropical North Pacific. Highest alkenone concentration and production rates were found in (winter and fall) or just below (summer) the surface mixed layer. Lowest alkenone concentration and production rates were found within the deep chlorophyll maximum layer (DCML). In the DCML, which occurs at 80–120 m throughout the year, U₃₇ᴷ' temperatures overestimated water temperatures by ∼2°–4°C. This result probably reflected the effect of light limitation on the physiology of alkenone‐producing algae. At the depth of maximum alkenone production, U₃₇ᴷ' temperatures underestimated water temperature by ∼2°–4°C in summer and fall but overestimated in situ temperatures by ∼1°–2°C in winter. The underestimate of measured water temperature in summer and fall most likely reflected a physiological response to limited nutrient availability. The U₃₇ᴷ' temperature overestimate in winter was best explained by a change in the ecology of alkenone‐producing algae.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Popp, B. N., Prahl, F. G., Wallsgrove, R. J., & Tanimoto, J. (2006). Seasonal patterns of alkenone production in the subtropical oligotrophic North Pacific. Paleoceanography, 21. doi:10.1029/2005PA001165
Journal Title
Journal Volume
  • 21
Rights Statement
Funding Statement (additional comments about funding)
  • National Science Foundation grants OCE-0094272 (B.N.P.), OCE-9986306 and OCE-0094329 (F.G.P), and OCE-9986306 and OCE-0094637 (B.N.P., R.R. Bidigare and E.A. Laws).SOEST contribution number 6657.
Publisher
Language
Replaces

Relationships

Parents:

This work has no parents.

Items