Species-specific growth rate of phytoplankton in the West Pacific sector of the Southern Ocean. I.Prorocentrum scuttellum schröder

1998 ◽  
Vol 41 (4) ◽  
pp. 293-297
Author(s):  
Hak Young Lee ◽  
Richard M. Greene
Keyword(s):  
Growth Rate ◽  
Southern Ocean ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
The West ◽  
West Pacific ◽  
Species Specific

scholarly journals Dynamics Modeling of Nitrogen Compounds in Microalgae Cells. 2. Chemostat

2019 ◽  
Vol 14 (2) ◽  
pp. 450-463 ◽  
Author(s):  
A.S. Lelekov ◽  
R.P. Trenkenshu
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Nitrogen Compounds ◽  
Specific Rate ◽  
Dynamics Modeling ◽  
Cell Content ◽  
Classical Models ◽  
Species Specific ◽  
Maximum Specific Rate

The work focuses on dynamics modeling of nitrogen compounds in microalgae cells under chemostat conditions. The analysis of classical models (Michaelis-Menten, Monod, Droop), which describe the kinetics of substrate-dependent growth of microalgae, was carried out. Classical models are shown to be applicable provided that the physicochemical parameters of the medium such as temperature, cell irradiation, etc are constant. As an alternative approach, the possibility of using linear splines in kinetics modeling of nitrate absorption by microalgae is shown. For the conditions of the chemostat, particular solutions for the generalized model of the dynamics of nitrogen compounds in the cells of microalgae considered in the first part of the work were obtained, and boundary conditions for the culture growth at unlimited nitrogen were determined. For limited growth, the equation for both the dependence of the specific growth rate on the intracellular nitrogen content, which coincides in form with the Droop model and the dependence of the specific growth rate on the extracellular concentration of nitrogen, which coincides in form with the Monod model were obtained. The species-specific coefficients of the equations such as the maximum specific rate of nitrogen absorption, the maximum specific rate of synthesis of structural components, the maximum content of reserve forms of nitrogen, the minimum share of structural forms of nitrogen in the total cell content were determined.

scholarly journals Feed demand behavior in sea bass juveniles: Effects on individual specific growth rate variation and health (inter-individual and inter-group variation)

Aquaculture ◽  
2008 ◽  
Vol 274 (1) ◽  
pp. 87-95 ◽  
Author(s):  
S. Millot ◽  
M.-L. Bégout ◽  
J. Person-Le Ruyet ◽  
G. Breuil ◽  
C. Di-Poï ◽  
...  
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Sea Bass ◽  
Rate Variation ◽  
Group Variation

scholarly journals Control of the specific growth rate of Bacillus subtilis for the production of biosurfactant lipopeptides in bioreactors with foam overflow

2010 ◽  
Vol 45 (11) ◽  
pp. 1800-1807 ◽  
Author(s):  
S. Chenikher ◽  
J.S. Guez ◽  
F. Coutte ◽  
M. Pekpe ◽  
P. Jacques ◽  
...  
Keyword(s):  
Growth Rate ◽  
Bacillus Subtilis ◽  
Specific Growth Rate ◽  
Specific Growth

E-beam irradiation affects the maximum specific growth rate ofBacillus cereus

2012 ◽  
Vol 48 (2) ◽  
pp. 382-386 ◽  
Author(s):  
Juan Aguirre ◽  
Mª Rosa Rodríguez ◽  
Rodrigo González ◽  
Gonzalo García de Fernando
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Specific Growth ◽  
Maximum Specific Growth Rate ◽  
Beam Irradiation ◽  
Ofbacillus Cereus

Specific growth rate of Chlamydomonas reinhardtii and Chlorella sorokiniana under medium duration light/dark cycles: 13–87 s

1999 ◽  
Vol 70 (1-3) ◽  
pp. 323-333 ◽  
Author(s):  
Marcel Janssen ◽  
Tjibbe Chris Kuijpers ◽  
Bram Veldhoen ◽  
Michel Brik Ternbach ◽  
Johannes Tramper ◽  
...  
Keyword(s):  
Growth Rate ◽  
Specific Growth Rate ◽  
Chlamydomonas Reinhardtii ◽  
Specific Growth ◽  
Chlorella Sorokiniana

scholarly journals Growth and hematology of pacu subjected to sustained swimming and fed different protein levels

2013 ◽  
Vol 48 (6) ◽  
pp. 645-650 ◽  
Author(s):  
Cleujosí da Silva Nunes ◽  
Gilberto Moraes ◽  
Fernando Fabrizzi ◽  
Araceli Hackbarth ◽  
Gustavo Alberto Arbeláez-Rojas
Keyword(s):  
Growth Rate ◽  
Weight Gain ◽  
Specific Growth Rate ◽  
Dietary Protein ◽  
Crude Protein ◽  
Specific Growth ◽  
Daily Weight Gain ◽  
Mean Corpuscular Hemoglobin ◽  
Protein Levels ◽  
Randomized Design

The objective of this work was to evaluate the effect of sustained swimming and dietary protein levels on growth and hematological responses of juvenile pacu (Piaractus mesopotamicus). A completely randomized design was used in a 3x2 factorial arrangement, with three levels of dietary protein (24, 28, and 32% crude protein), two rearing conditions (sustained swimming or motionless water), and 15 replicates. Fish were subjected to sustained swimming at the velocity of two body lengths per second (2 BL s-1), for 45 days. The level of dietary protein and the swimming conditions affected the performance, growth, and hematological profile of pacu. Swimming conditions influenced nutritional factors, increasing daily weight gain, specific growth rate, number of erythrocytes, mean corpuscular volume, and mean corpuscular hemoglobin. Fish under sustained swimming and fed with 24% crude protein showed better growth performance, with higher specific growth rate (4.11±0.88) and higher daily weight gain (2.19±0.47 g per day). Sustained swimming can increase the productive performance of pacu and simultaneously reduce dietary protein levels.

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