Results 51 to 60 of about 9,625 (223)

Microbial acetone oxidation in coastal seawater [PDF]

, 2014
Acetone is an important oxygenated volatile organic compound (OVOC) in the troposphere where it influences the oxidizing capacity of the atmosphere. However, the air-sea flux is not well quantified, in part due to a lack of knowledge regarding which ...
Beale, Rachael, Dixon, Joanna L., Nightingale, Philip D., Sargeant, Stephanie L., Tarran, Glen A.   +4 more
core   +4 more sources

Picoplanktonic methane production in eutrophic surface waters

Biogeosciences, 2023
Abstract. In the last decade, there have been several research articles on the methane paradox (aerobic CH4 production) first described in the 1960s. In this study, we present observations of CH4 supersaturation in the surface layer in the central Chile upwelling zone (36° S, 73° W) throughout two seasonal cycles (2018–2021).
S. E. Tenorio, S. E. Tenorio, S. E. Tenorio, L. Farías, L. Farías, L. Farías   +5 more
openaire   +5 more sources

Autotrophic picoplankton assemblages in subtropical reservoir: temporal and vertical dynamics in abundance and biomass

Journal of Freshwater Ecology, 2017
The composition, biomass and dynamics of autotrophic picoplankton (APP, size range of 0.2–2 μm) in a subtropical reservoir (Cerrillos, Puerto Rico) were examined from January to December 2013. Samples were collected monthly in the limnetic zone.
Fernando Pantoja-Agreda, Ernesto Otero-Morales   +1 more
doaj   +1 more source

Invasion of a littoral cladoceran Sida crystallina into the pelagic zone of Christine Lake, NH and its potential impact on the phytoplankton community [PDF]

, 2011
This study evaluated the phytoplankton community and grazing influences of the zooplankton in oligotrophic Christine Lake, NH, by assessing the body size and clearance rates of the three dominant crustaceans: Sida crystallina (0.08 individuals L-1 ...
Huey, Kayla N.
core   +1 more source

Diverse diazotrophs are present on sinking particles in the North Pacific Subtropical Gyre. [PDF]

, 2019
Sinking particles transport carbon and nutrients from the surface ocean into the deep sea and are considered hot spots for bacterial diversity and activity.
Collins, James R, Farnelid, Hanna, Ossolinski, Justin E, Ploug, Helle, Turk-Kubo, Kendra, Van Mooy, Benjamin AS, Zehr, Jonathan P   +6 more
core   +1 more source

Distributions of phytoplankton carbohydrate, protein and lipid in the world oceans from satellite ocean colour [PDF]

, 2018
Energy value of phytoplankton regulates the growth of higher trophic species, affecting the tropic balance and sustainability of marine food webs. Therefore, developing our capability to estimate and monitor, on a global scale, the concentrations of ...
AC Martiny, AR Longhurst, CB Field, D Müller, D Stramski, E Marañón, E Marañón, E Marañón, F Vidussi, GL Hitchcock, HR Pethybridge, I McCave, J Moal, JC Goldman, JM Sieburth, K Shin, KE Taylor, MA Litzow, P Falkowski, PG Falkowski, PJ Werdell, R Geider, R Reynolds, R Sheldon, R Strathmann, RH Peters, RJ Brewin, S Jónasdóttir, S Maritorena, S Menden-Deuer, S Roy, S Roy, S Roy, S Roy, S Roy, S Roy, S Sal, S Sathyendranath, S Schmidtko, Shovonlal Roy, SM Budge, T Kostadinov, TS Kostadinov, WK Breteler, Y Chisti, Z Finkel, Z Finkel   +46 more
core   +1 more source

Sedimentary biogeochemical provinces in the northern limit of the oxygen minimum zone from the northeastern Mexican Pacific

Sedimentology, EarlyView.
ABSTRACT Continental margins are reservoirs of materials of terrestrial and marine origin, and they play a crucial role in understanding the spatial and temporal variability of biogeochemical cycles. This, in turn, provides insights into the development and intensity of oxygen minimum zones (OMZs).
Alberto Sánchez
wiley   +1 more source

Seasonal patterns and interannual variability of phytoplankton in Lake Stechlin [PDF]

, 2004
The paper presents results of detailed phytoplankton investigations in Lake Stechlin between 1994 and 2003. The analysis includes the picoplankton fraction (dominated by Cyanobium sp.) that regularly appears as a deep-layer chlorophyll maximum (DCM ...
Koschel, Rainer, Krienitz, Lothar, Padisák, Judit, Scheffler, Wolfram   +3 more
core  

Microcosm experiments reveal source‐specific impacts of atmospheric aerosols on plankton communities and organic matter in the sea surface microlayer

Limnology and Oceanography, Volume 71, Issue 5, May 2026.
Abstract The impact of atmospheric deposition on marine ecosystems requires consideration of the interfacial processes within the sea surface microlayer, the uppermost layer at the air–sea interface. This study examines the impact of anthropogenic and biomass burning aerosol particles on the plankton community structure and organic matter accumulation ...
Andrea Milinković, Abra Penezić, Ana Cvitešić Kušan, Saranda Bakija Alempijević, Silva Žužul, Sanda Skejić, Danijela Šantić, Ranka Godec, Jelena Godrijan, Blaženka Gašparović, Maren Striebel, Jutta Niggemann, Mariana Ribas‐Ribas, Oliver Wurl, Sanja Frka   +14 more
wiley   +1 more source

Eukaryotic Picoplankton in Surface Oceans

Annual Review of Microbiology, 2011
The eukaryotic picoplankton is a heterogeneous collection of small protists 1 to 3 μm in size populating surface oceans at abundances of 102 to 104 cells ml−1. Pigmented cells are important primary producers that are at the base of food webs. Colorless cells are mostly bacterivores and play key roles in channeling bacteria to higher trophic levels as ...
openaire   +3 more sources