Search Results - "Timothy Pennington, J."

Marine primary production in relation to climate variability and change by Chavez, Francisco P, Messié, Monique, Pennington, J Timothy

“…Marine photosynthetic plankton are responsible for approximately 50 petagrams (10(15)) of carbon per year of net primary production, an amount equivalent to…”
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Abundance and Biogeography of Picoprasinophyte Ecotypes and Other Phytoplankton in the Eastern North Pacific Ocean by Simmons, Melinda P, Sudek, Sebastian, Monier, Adam, Limardo, Alexander J, Jimenez, Valeria, Perle, Christopher R, Elrod, Virginia A, Pennington, J Timothy, Worden, Alexandra Z

“…Eukaryotic algae within the picoplankton size class (≤2 μm in diameter) are important marine primary producers, but their spatial and ecological distributions…”
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Humpback whale song occurrence reflects ecosystem variability in feeding and migratory habitat of the northeast Pacific by Ryan, John P, Cline, Danelle E, Joseph, John E, Margolina, Tetyana, Santora, Jarrod A, Kudela, Raphael M, Chavez, Francisco P, Pennington, J Timothy, Wahl, Christopher, Michisaki, Reiko, Benoit-Bird, Kelly, Forney, Karin A, Stimpert, Alison K, DeVogelaere, Andrew, Black, Nancy, Fischer, Mark

“…This study examines the occurrence of humpback whale (Megaptera novaeangliae) song in the northeast Pacific from three years of continuous recordings off…”
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The influence of diel vertical migration on zooplankton transport and recruitment in an upwelling region: estimates from a coupled behavioral-physical model by CARR, SARAH D., CAPET, XAVIER J., MCWILLIAMS, JAMES C., PENNINGTON, J. TIMOTHY, CHAVEZ, FRANCISCO P.

“…Diel vertical migration (DVM) is a common zooplankton behavior in which organisms reside in surface or near‐surface waters at night and at deeper depths during…”
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Dimethylmercury in Coastal Upwelling Waters, Monterey Bay, California by Conaway, Christopher H, Black, Frank J, Gault-Ringold, Melanie, Pennington, J. Timothy, Chavez, Francisco P, Flegal, A. Russell

“…Depth profiles of dimethylmercury (DMHg) concentration were determined at nearshore to offshore sites in Monterey Bay, California. The onset of spring…”
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Seasonal fluctuations of temperature, salinity, nitrate, chlorophyll and primary production at station H3/M1 over 1989–1996 in Monterey Bay, California by Timothy Pennington, J., Chavez, Francisco P.

“…Time series of temperature, salinity, nitrate, primary production and chlorophyll over 1989–1996 at station H3/M1 in central Monterey Bay, CA, USA, are…”
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Impact of recently upwelled water on productivity investigated using in situ and incubation‐based methods in Monterey Bay by Manning, Cara C., Stanley, Rachel H. R., Nicholson, David P., Smith, Jason M., Timothy Pennington, J., Fewings, Melanie R., Squibb, Michael E., Chavez, Francisco P.

“…Photosynthetic conversion of CO2 to organic carbon and the transport of this carbon from the surface to the deep ocean is an important regulator of atmospheric…”
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Coastal upwelling drives ecosystem temporal variability from the surface to the abyssal seafloor by Messié, Monique, Sherlock, Rob E, Huffard, Christine L, Pennington, J Timothy, Choy, C Anela, Michisaki, Reiko P, Gomes, Kevin, Chavez, Francisco P, Robison, Bruce H, Smith, Jr, Kenneth L

“…Long-term biological time series that monitor ecosystems across the ocean's full water column are extremely rare. As a result, classic paradigms are yet to be…”
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Primary production in the eastern tropical Pacific: A review by Pennington, J. Timothy, Mahoney, Kevin L., Kuwahara, Victor S., Kolber, Dorota D., Calienes, Ruth, Chavez, Francisco P.

“…The eastern tropical Pacific includes 28 million km super(2) of ocean between 23.5 degree N and S and Central/South America and 140 degree W, and contains the…”
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Nitrification in the euphotic zone as evidenced by nitrate dual isotopic composition: Observations from Monterey Bay, California by Wankel, Scott D., Kendall, Carol, Pennington, J. Timothy, Chavez, Francisco P., Paytan, Adina

“…Coupled measurements of nitrate (NO3−), nitrogen (N), and oxygen (O) isotopic composition (δ15NNO3 and δ18ONO3) were made in surface waters of Monterey Bay to…”
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Climate Variability and Change: Response of a Coastal Ocean Ecosystem by Chavez, Francisco P., Pennington, J. Timothy, Michisaki, Reiko P., Blum, Marguerite, Chavez, Gabriela M., Friederich, Jules, Jones, Brent, Herlien, Robert, Kieft, Brian, Hobson, Brett, Ren, Alice S., Ryan, John, Sevadjian, Jeffrey C., Wahl, Christopher, Walz, Kristine R., Yamahara, Kevan, Friederich, Gernot E., Messié, Monique

“…Monterey Bay and contiguous waters of the California Current System have been observed repeatedly since 1929, most intensively since 1989 with ships, moorings,…”
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HOURLY IN SITU NITRATE ON A COASTAL MOORING: A 15-Year Record and Insights into New Production by Sakamoto, Carole M., Johnson, Kenneth S., Coletti, Luke J., Maurer, Tanya L., Massion, Gene, Pennington, J. Timothy, Plant, Joshua N., Jannasch, Hans W., Chavez, Francisco P.

“…Chemical sensor development has been a focus for the Monterey Bay Aquarium Research Institute (MBARI) from its inception. Progress in chemical analyzers…”
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The Ecology of Fertilization of Echinoid Eggs: The Consequences of Sperm Dilution, Adult Aggregation, and Synchronous Spawning by Pennington, J. Timothy

“…Percent fertilization of eggs of the echinoid Strongylocentrotus droebachiensis (0. F. Müller) was determined both in laboratory and field experiments. In the…”
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A Time Series Investigation of the Oxygen Isotopic Composition of Dissolved Inorganic Phosphate in Monterey Bay, California by McLaughlin, Karen, Chavez, Francisco, Pennington, J. Timothy, Paytan, Adina

“…We present a 2-yr time series of the oxygen isotopic composition of dissolved inorganic phosphate (δ18Op) in Monterey Bay, California. δ18Opcan serve as a…”
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Decade-scale oceanographic fluctuation in Monterey Bay, California, 1989–2011 by Pennington, J. Timothy, Chavez, Francisco P.

“…Monterey Bay, California, has been sampled by ship at 2–3 week intervals during 1989–2011. Here we present the resulting time series of temperature, salinity,…”
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The annual cycle of iron and the biological response in central California coastal waters by Johnson, Kenneth S., Chavez, Francisco P., Elrod, Virginia A., Fitzwater, Steve E., Pennington, J. Timothy, Buck, Kurt R., Walz, Peter M.

“…Iron has been measured for 16 months with ∼21 day resolution at three stations in the upwelling ecosystem of central California, providing the first detailed…”
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Time series assessment of Thaumarchaeota ecotypes in Monterey Bay reveals the importance of water column position in predicting distribution–environment relationships by Tolar, Bradley B., Reji, Linta, Smith, Jason M., Blum, Marguerite, Pennington, J. Timothy, Chavez, Francisco P., Francis, Christopher A.

“…Nitrification plays a key role in marine ecosystems where Thaumarchaeota are thought to be responsible for most of the ammonia oxidation in the water column…”
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Temporal variability of downward fluxes of organic carbon off Monterey Bay by Castro, Carmen G., Chavez, Francisco P., Pennington, J. Timothy, Durazo, Reginaldo, Collins, Curtis A.

“…Sediment traps were deployed at two depths (300 m and 1200 m) off Monterey Bay (36°40′N and 122°25′W, Central California) for 7.3 years (1998–2005). The…”
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Development, Temperature Tolerance, and Settlement Preference of Embryos and Larvae of the Articulate Brachiopod Laqueus californianus by Pennington, J. Timothy, Tamburri, Mario N., Barry, James P.

“…Populations of the articulate brachiopod Laqueus californianus occur in dense single-species aggregations near the continental shelf/slope break (100-200 m) in…”
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Consequences of the Calcite Skeletons of Planktonic Echinoderm Larvae for Orientation, Swimming, and Shape by Pennington, J. Timothy, Strathmann, Richard R.

“…How the echinoderm larval skeleton is used for support of larval arms, passive orientation, and swimming was examined by experimentally removing the skeletons…”
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