منابع مشابه
Quantification of methylphosphonate associated to suspended material at Station ALOHA
Methylphosphonate (MPn) metabolism has been proposed to be an aerobic source of methane in surface oceanic waters. Previous work by Daniela del Valle, C-MORE post-doctoral fellow in the laboratory of Prof. David Karl, has shown that even though microbes are able produce methane from dissolved MPn in the ocean, this process is not a significant source of methane at Station ALOHA. However, this w...
متن کاملListening for Whales at the Station ALOHA Cabled Observatory
The Station ALOHA Cabled Observatory (ACO) is an ocean-bottom observatory that allows continuous real-time monitoring of ocean processes including sounds produced by baleen whales. Baleen whales can be challenging to study using traditional visual methods due to their cryptic behavior and offshore ranges. Many baleen whales produce distinctive sounds that propagate well under water and so ocean...
متن کاملEcology and biogeochemistry of alkenone production at Station ALOHA
In our study of Station ALOHA, a site representative of the oligotrophic North Pacific subtropical gyre (NPSG), alkenone content and composition were examined in (1) sinking particulate materials collected in sediment traps moored at 2800m during 2 year-long deployments (1992–1993 and 2000–2001) and (2) suspended particulate materials collected throughout the euphotic zone in two contrasting se...
متن کاملPhenology of particle size distributions and primary productivity in the North Pacific subtropical gyre (Station ALOHA)
The particle size distribution (PSD) is a critical aspect of the oceanic ecosystem. Local variability in the PSD can be indicative of shifts in microbial community structure and reveal patterns in cell growth and loss. The PSD also plays a central role in particle export by influencing settling speed. Satellite-based models of primary productivity (PP) often rely on aspects of photophysiology t...
متن کاملMultiyear increases in dissolved organic matter inventories at Station ALOHA in the North Pacific Subtropical Gyre
The inventories and dynamics of dissolved organic matter (DOM) in the surface water at Station ALOHA were analyzed from the Hawaii Ocean Time-series (HOT) data set for the period 1989–1999. Euphotic zone, depthintegrated (0–175 m) concentrations of dissolved organic carbon (DOC), nitrogen (DON), and phosphorus (DOP) were temporally variable. In particular, during the period 1993–1999, concentra...
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ژورنال
عنوان ژورنال: Environmental Science & Technology
سال: 2009
ISSN: 0013-936X,1520-5851
DOI: 10.1021/es902177r