Search Results - "SAFI, Karl A"

Dimethylsulfoniopropionate (DMSP) and dimethyl sulfide (DMS) cycling across contrasting biological hotspots of the New Zealand subtropical front by Lizotte, Martine, Levasseur, Maurice, Law, Cliff S, Walker, Carolyn F, Safi, Karl A, Marriner, Andrew, Kiene, Ronald P

“…The oceanic frontal region above the Chatham Rise east of New Zealand was investigated during the late austral summer season in February and March 2012…”
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Factors influencing summer phytoplankton biomass in a large river system with impoundments: retention time, zooplankton grazing, thermal stratification and internal seiching in a hydro lake by Gibbs, Max M., Bowman, Eddie, Safi, Karl A., Albert, Anathea M., Duggan, Ian C., Burger, David

“…Phytoplankton production as indicated by chlorophyll a concentrations in Lake Karāpiro, the last hydro power station lake on the Waikato River, shows high…”
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In situ response of Antarctic under-ice primary producers to experimentally altered pH by Cummings, Vonda J., Barr, Neill G., Budd, Rod G., Marriott, Peter M., Safi, Karl A., Lohrer, Andrew M.

“…Elevated atmospheric CO 2 concentrations are contributing to ocean acidification (reduced seawater pH and carbonate concentrations), with potentially major…”
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Dimethyl sulfide cycling in the sea surface microlayer in the southwestern Pacific – Part 2: Processes and rates by Saint-Macary, Alexia D, Marriner, Andrew, Deppeler, Stacy, Safi, Karl A, Law, Cliff S

“…As the sea surface microlayer (SML) is the uppermost oceanic layer and differs in biogeochemical composition to the underlying subsurface water (SSW), it is…”
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Overview and preliminary results of the Surface Ocean Aerosol Production (SOAP) campaign by Law, Cliff S, Smith, Murray J, Harvey, Mike J, Bell, Thomas G, Cravigan, Luke T, Elliott, Fiona C, Lawson, Sarah J, Lizotte, Martine, Marriner, Andrew, McGregor, John, Ristovski, Zoran, Safi, Karl A, Saltzman, Eric S, Vaattovaara, Petri, Walker, Carolyn F

“…Establishing the relationship between marine boundary layer (MBL) aerosols and surface water biogeochemistry is required to understand aerosol and cloud…”
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No stimulation of nitrogen fixation by non-filamentous diazotrophs under elevated CO 2 in the South Pacific by Law, Cliff S, Breitbarth, Eike, Hoffmann, Linn J, McGraw, Christina M, Langlois, Rebecca J, LaRoche, Julie, Marriner, Andrew, Safi, Karl A

“…Nitrogen fixation by diazotrophic cyanobacteria is a critical source of new nitrogen to the oligotrophic surface ocean. Research to date indicates that some…”
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No stimulation of nitrogen fixation by non-filamentous diazotrophs under elevated CO2 in the South Pacific by Law, Cliff S., Breitbarth, Eike, Hoffmann, Linn J., McGraw, Christina M., Langlois, Rebecca J., LaRoche, Julie, Marriner, Andrew, Safi, Karl A.

“…Nitrogen fixation by diazotrophic cyanobacteria is a critical source of new nitrogen to the oligotrophic surface ocean. Research to date indicates that some…”
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Exploring mechanisms for spring bloom evolution: contrasting 2008 and 2012 blooms in the southwest Pacific Ocean by Chiswell, Stephen M, Safi, Karl A, Sander, Sylvia G, Strzepek, Robert, Ellwood, Michael J, Milne, Angela, Boyd, Philip W

“…Abstract Observations from two research cruises made in 2008 and 2012 to east of New Zealand are put into context with satellite data to contrast and compare…”
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Partitioning of wastewater treatment high rate algal pond biomass and particulate carbon by Safi, Karl.A., Park, Jason.B.K., Craggs, Rupert.J.

“…The partitioning of algae, bacteria, grazers and detritus in two wastewater treatment high rate algal ponds (HRAPs) was investigated in relation to particulate…”
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Microzooplankton composition, biomass and grazing rates along the WOCE SR3 line between Tasmania and Antarctica by Safi, Karl A., Brian Griffiths, F., Hall, Julie A.

“…Microzooplankton species composition and grazing rates on phytoplankton were investigated along a transect between ∼46 and 67°S, and between 140 and 145°E…”
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The SOLAS air–sea gas exchange experiment (SAGE) 2004 by Harvey, Mike J., Law, Cliff S., Smith, Murray J., Hall, Julie A., Abraham, Edward R., Stevens, Craig L., Hadfield, Mark G., Ho, David T., Ward, Brian, Archer, Stephen D., Cainey, Jill M., Currie, Kim I., Devries, Dawn, Ellwood, Michael J., Hill, Peter, Jones, Graham B., Katz, Dave, Kuparinen, Jorma, Macaskill, Burns, Main, William, Marriner, Andrew, McGregor, John, McNeil, Craig, Minnett, Peter J., Nodder, Scott D., Peloquin, Jill, Pickmere, Stuart, Pinkerton, Matthew H., Safi, Karl A., Thompson, Rona, Walkington, Matthew, Wright, Simon W., Ziolkowski, Lori A.

“…The SOLAS air–sea gas exchange experiment (SAGE) was a multiple-objective study investigating gas-transfer processes and the influence of iron fertilisation on…”
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The effect of high inorganic seston loads on prey selection by the suspension-feeding bivalve, Atrina zelandica by Safi, Karl A., Hewitt, Judi E., Talman, Sonia G.

“…Suspension-feeders are discriminate feeders, selecting prey by size, shape and food quality, this discriminate feeding behaviour has important consequences for…”
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Mass Sedimentation of Picoplankton Embedded in Organic Aggregates by Waite, Anya M., Safi, Karl A., Hall, Julie A., Nodder, Scott D.

“…During a survey cruise crossing the Subtropical Front over the Chatham Rise east of New Zealand, we made the first observation in High Nutrient Low Chlorophyll…”
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Phytoplankton dynamics, growth and microzooplankton grazing across the subtropical frontal zone, east of New Zealand by Safi, Karl A., Rodríguez, Andrés Gutiérrez, Hall, Julie A., Pinkerton, Matthew H.

“…Elevated but variable phytoplankton biomass and productivity is often associated with the subtropical front (STF) where nitrogen-limited subtropical and…”
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Retention of dissolved iron and Fe II in an iron induced Southern Ocean phytoplankton bloom by Croot, Peter L., Bowie, Andrew R., Frew, Russell D., Maldonado, Maria T., Hall, Julie A., Safi, Karl A., La Roche, Julie, Boyd, Philip W., Law, Cliff S.

“…During the 13 day Southern Ocean Iron RE‐lease Experiment (SOIREE), dissolved iron concentrations decreased rapidly following each of three iron‐enrichments,…”
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Microalgal populations of three New Zealand coastal locations: forcing functions and benthic-pelagic links by Safi, Karl A.

“…I investigated spatial and temporal variability in benthic and pelagic (phytoplankton) microalgal assemblages in 2 harbours and a coastal embayment off the…”
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The SOLAS air―sea gas exchange experiment (SAGE) 2004: The SOLAS Air-Gas Exchange Experiment (SAGE) 2004 by HARVEY, MikeJ, LAW, Cliff S, CAINEY, Jill M, CURRIE, Kim I, DEVRIES, Dawn, ELLWOOD, Michael J, HILL, Peter, JONES, Graham B, KATZ, Dave, KUPARINEN, Jorma, MACASKILL, Burns, MAIN, William, SMITH, Murray J, MARRINER, Andrew, MCGREGOR, John, MCNEIL, Craig, MINNETT, Peter J, NODDER, Scott D, PELOQUIN, Jill, PICKMERE, Stuart, PINKERTON, Matthew H, SAFI, Karl A, THOMPSON, Rona, HALL, Julie A, WALKINGTON, Matthew, WRIGHT, Simon W, ZIOLKOWSKI, Lori A, ABRAHAM, Edward R, STEVENS, Craig L, HADFIELD, Mark G, HO, David T, WARD, Brian, ARCHER, Stephen D

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Importance of different size classes of phytoplankton in Beatrix Bay, Marlborough Sounds, New Zealand, and the potential implications for the aquaculture of the mussel, Perna canaliculus by Safi, Karl A., Gibbs, Max M.

“…Phytoplankton are recognised as the primary source of food for cultured mussels. Small phytoplankton (<5 μm), however, are often not efficiently retained as…”
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Factors influencing autotrophic and heterotrophic nanoflagellate abundance in five water masses surrounding New Zealand by Safi, Karl A., Hall, Julie A.

“…The aim of this study was to measure nanoflagellate abundance in New Zealand waters, and identify the key factors which both influence, and are influenced by,…”
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Retention of dissolved iron and FeII in an iron induced Southern Ocean phytoplankton bloom by CROOT, Peter L, BOWIE, Andrew R, FREW, Russell D, MALDONADO, Maria T, HALL, Julie A, SAFI, Karl A, LA ROCHE, Julie, BOYD, Philip W, LAW, Cliff S

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