In situ primary production, biomass and light regime in the Wolderwijd, the most stable Oscillatoria agardhii lake in The Netherlands

Hydrobiologia ◽  
1989 ◽  
Vol 185 (3) ◽  
pp. 233-244 ◽  
Author(s):  
C. Berger
Keyword(s):  
The Netherlands ◽  
Primary Production ◽  
Light Regime ◽  
Oscillatoria Agardhii

In situ assessment of the daily primary production of the temperate symbiotic coral Cladocora caespitosa

2013 ◽  
Vol 58 (4) ◽  
pp. 1409-1418 ◽  
Author(s):  
C. Ferrier-Pagès ◽  
F. Gevaert ◽  
S. Reynaud ◽  
E. Beraud ◽  
D. Menu ◽  
...  
Keyword(s):  
Primary Production ◽  
Cladocora Caespitosa ◽  
In Situ Assessment

scholarly journals The stratigraphy of the Neogene-Quaternary succession in the southwest Netherlands from the Schelphoek borehole (42G4-11/42G0022) – a sequence-stratigraphic approach

2007 ◽  
Vol 86 (4) ◽  
pp. 317-332 ◽  
Author(s):  
A.A. Slupik ◽  
F.P. Wesselingh ◽  
A.C. Janse ◽  
J.W.F. Reumer
Keyword(s):  
The Netherlands ◽  
Coastal Area ◽  
Late Quaternary ◽  
Tidal Channel ◽  
The South ◽  
Glacial Cycles ◽  
Sequence Stratigraphic ◽  
The North ◽  
Mammal Fauna

AbstractWe investigate the stratigraphy of Neogene and Quaternary intervals of the Schelphoek borehole (Schouwen, Zeeland, the Netherlands). The Breda Formation (Miocene-Zanclean) contains three sequences separated by hiatuses. The Oosterhout Formation (Zanclean-Piacenzian) contains at least two sequences. This formation is overlain by seven sequences of the Gelasian Maassluis Formation that almost certainly represent glacial cycles. The three lowermost sequences are provisionally assigned to the Praetiglian (MIS 96, MIS 98 and MIS 100). A large hiatus exists between the top of the Maassluis Formation and the base of the late Middle to Late Quaternary succession. Due to extensivein situreworking of older strata (including fossils) at the base of several of the formations, their exact boundaries are difficult to establish. The Neogene succession in the Schelphoek borehole is compared to the stratigraphic successions in the Antwerp area to the south and the Dutch coastal area and continental platform to the north. Finally, the stratigraphic context of the Gelasian (‘Tiglian’) mammal fauna dredged from the bottom of a major tidal channel in the adjacent Oosterschelde is assessed by comparison with the Schelphoek borehole.

Abstract PD3-04: Classic lobular carcinoma in situ in the Netherlands: A population-based analysis

2020 ◽  
Author(s):  
Marissa Corine van Maaren ◽  
Agustin Ortega Avila ◽  
Jos Bart ◽  
Pieter J Westenend ◽  
Sabine Siesling
Keyword(s):  
The Netherlands ◽  
Carcinoma In Situ ◽  
Lobular Carcinoma ◽  
Population Based ◽  
Lobular Carcinoma In Situ

The Simulated in situ Measurements of Oceanic Primary Production

1963 ◽  
Vol 14 (2) ◽  
pp. 139 ◽  
Author(s):  
HR Jitts
Keyword(s):  
Primary Production ◽  
In Situ Measurements ◽  
Light Conditions ◽  
Significant Relation ◽  
Blue Glass ◽  
Simultaneous Measurements ◽  
Reflected Light

Simultaneous measurements with two types of incubators were made on replicate samples both in the incubators and in situ in the ocean. Both incubators used sunlight and blue glass filters to simulate light conditions at depths in the ocean. The first gave measurements of column production 1.58 times those in situ. This was due to the fact that at depths greater than 20 m the incubator gave much higher results with no significant relation to those measured in situ. In the second incubator the accuracy of reproduction of oceanic light conditions was improved by reducing reflected light and using a balance-by-depth twin photometer system for determining the depths of sampling. The measurements of column production in the second incubator were 1.03 times the in situ values.

The relation of oceanic primary production to available photosynthetic irradiance

1976 ◽  
Vol 27 (3) ◽  
pp. 441 ◽  
Author(s):  
HR Jitts ◽  
A Morel ◽  
Y Saijo
Keyword(s):  
Primary Production ◽  
Surface Ocean ◽  
Surface Samples ◽  
In Situ Method ◽  
Wide Range ◽  
Total Irradiance ◽  
Highly Correlated ◽  
Bodies Of Water ◽  
High Degree

Primary production was measured at 14 stations covering a wide range of oceanic waters. Measurements were made by both the in situ method (Pi) and the simulated in situ method (Ps) Production v. constant irradiance (P v. I) was also measured. Available photosynthetic irradiance [Eq(350-700) in quanta m-2 s-1] was calculated from continuous records of total irradiance and measurements of the percentage submarine transmission of irradiance were made with a quantum meter. Using the P v. I curves and Eq(350-700), primary production at several depths at each station was calculated (P,). Pc was shown to be a precise estimate of Ps at all depths. Pc was also highly correlated with Pi, but both Pc and Pi overestimated Pi at the surface by 40 %. Some experiments at three stations showed that a 2-mm thickness of clear glass placed over surface samples in the measurement of Ps could increase Ps by about 50%. This suggested that U.V. irradiance in surface ocean waters decreased Pi and could explain the overestimates by Pc and Ps. The results showed the need for precise information of spectrai composition of irradiance in studies of primary production but demonstrated the kalidity of Eq(350-700) as an estimate of available photosynthetic irradiance. They also showed that Pc could estimate Pi with a high degree of precision, and that such a calculative method could provide a useful way of continuously monitoring the primary production of large bodies of water for extended periods.

scholarly journals Antimicrobial Susceptibility of Clinically Relevant Gram-Positive Anaerobic Cocci Collected over a Three-Year Period in the Netherlands

2010 ◽  
Vol 55 (3) ◽  
pp. 1199-1203 ◽  
Author(s):  
A. C. M. Veloo ◽  
G. W. Welling ◽  
J. E. Degener
Keyword(s):  
The Netherlands ◽  
Clavulanic Acid ◽  
Antimicrobial Susceptibility ◽  
Penicillin G ◽  
Correct Identification ◽  
Gram Positive ◽  
Parvimonas Micra ◽  
Amoxicillin Clavulanic Acid

ABSTRACTThe susceptibility of 14 species of 115 Gram-positive anaerobic cocci (GPAC) was determined for 14 antibiotics. To assure correct identification, strains were genotypically identified by fluorescencein situhybridization and sequencing. Susceptibility differences (MIC50and MIC90) for penicillin G, clindamycin, tigecycline, levofloxacin, amoxicillin-clavulanic acid, cefoxitin, ertapenem, meropenem, metronidazole, and doxycycline were found for the three clinically most relevant GPAC species:Finegoldia magna,Parvimonas micra, andPeptoniphilus harei.

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