Results 81 to 90 of about 244,849 (330)

Identification of environmental factors affecting the abundance and distribution of phytoplanktons in Shamil Dam Lake [PDF]

open access: yesبوم‌شناسی آبزیان, 2019
Microscopic suspended algae, or phytoplankton, are the prime source of organic matter supporting food webs in freshwater ecosystems. Studying the distribution of their population and understanding the interactions between environmental factors and the ...
Mahsa Katani   +2 more
doaj  

Net phytoplankton and zooplankton in the New York Bight, January 1976 to February 1978, with comments on the effects of wind, Gulf Stream eddies, and slope water intrusions [PDF]

open access: yes, 1984
Results are given of monthly net phytoplankton and zooplankton sampling from a 10 m depth in shelf, slope, and Gulf Stream eddy water along a transect running southeastward from Ambrose Light, New York, in 1976, 1977, and early 1978.
Jossi, Jack W., Smith, Daniel E.
core  

The summertime plankton community at South Georgia (Southern Ocean): comparing the historical (1926/27) and modern (post 1995) records. [PDF]

open access: yes, 2008
The earliest comprehensive plankton sampling programme in the Southern Ocean was 32 undertaken during the early part of last century by Discovery Investigations to gain a 33 greater scientific understanding of whale stocks and their summer feeding ...
Meredith, Michael P.   +3 more
core   +1 more source

Development of a moored radium in situ sampler to measure annual time series

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Radium is a useful tracer of sediment‐derived materials, improving our understanding of the geochemical cycling of elements at ocean boundaries. We have developed an autonomous in situ sampler to collect time series samples of radium isotopes on mooring deployments.
Lauren Kipp   +5 more
wiley   +1 more source

The planktonic food web in the Gulf of Naples based on the analysis of carbon and nitrogen stable isotope ratios

open access: yesMarine Ecology, EarlyView., 2023
Abstract Plankton play a key role in marine food webs by producing and transferring organic matter and energy to higher trophic levels. To define the trophic structure and interactions within the planktonic communities in the Gulf of Naples, we determined carbon and nitrogen stable isotope ratios in particulate organic matter (POM, <20 μm ...
Louise Merquiol   +2 more
wiley   +1 more source

Evolutionary temperature compensation of carbon fixation in marine phytoplankton [PDF]

open access: yes, 2020
The efficiency of carbon sequestration by the biological pump could decline in the coming decades because respiration tends to increase more with temperature than photosynthesis.
Barton, Samuel   +6 more
core   +3 more sources

Sediment trap preservative choice impacts particle‐associated microbial community composition

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Understanding and quantifying the microbial contribution to particulate organic matter (POM) flux and carbon cycling in the ocean relies largely on the collection of sinking POM. A critical aspect of evaluating microbial communities on sediment trap‐collected POM is their preservation until recovery and sample processing.
Nicola L. Paul   +7 more
wiley   +1 more source

Phytoplankton Diversity Effect on Ecosystem Functioning in a Coastal Upwelling System

open access: yesFrontiers in Marine Science, 2020
Species composition plays a key role in ecosystem functioning. Theoretical, experimental and field studies show positive effects of biodiversity on ecosystem processes.
Jaime Otero   +2 more
doaj   +1 more source

Cyclonic cold-core eddy in the eastern North Atlantic. II. Nutients, phytoplankton and bacteriaplankton [PDF]

open access: yes, 1987
A cyclonic cold-core eddy in the Northeast Atlantic of about 100 km in diameter at the sea surface was investigated in May 1985, approximately 3 wk after it had separated from the Polar Front.
Lochte, Karin, Pfannkuche, Olaf
core  

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