Ecophysiological Studies on the Population Dynamics of Two Toxic Dinoflagellates Alexandrium tamarense and Alexandrium catenella Isolated from the Southern Coast of Korea -I. Effects of Temperature and Salinity on the Growth

2012 ◽  
Vol 15 (2) ◽  
pp. 133-141 ◽  
Author(s):  
Seok-Jin Oh ◽  
Ji-A Park ◽  
Hyeong-Kyu Kwon ◽  
Han-Soeb Yang ◽  
Weol-Ae Lim
Keyword(s):  
Population Dynamics ◽  
Alexandrium Tamarense ◽  
Southern Coast ◽  
Alexandrium Catenella ◽  
Toxic Dinoflagellates ◽  
Effects Of Temperature

scholarly journals Influence of a Bacteriophage on the Population Dynamics of Toxic Dinoflagellates by Lysis of Algicidal Bacteria

2011 ◽  
Vol 77 (21) ◽  
pp. 7837-7840 ◽  
Author(s):  
Wenwei Cai ◽  
Hui Wang ◽  
Yun Tian ◽  
Feng Chen ◽  
Tianling Zheng
Keyword(s):  
Population Dynamics ◽  
Resistant Mutant ◽  
Alexandrium Tamarense ◽  
Algicidal Bacteria ◽  
Lytic Phage ◽  
Toxic Dinoflagellate ◽  
Content Type ◽  
Algicidal Bacterium ◽  
Toxic Dinoflagellates ◽  
Indirect Impact

ABSTRACTA lytic phage (øZCW1) was isolated from an algicidal bacteriumPseudoalteromonassp. strain SP48 that specifically kills the toxic dinoflagellateAlexandrium tamarense. We demonstrated that øZCW1 could trigger the growth ofA. tamarenseby inhibiting the growth of algicidal bacterium SP48. In contrast, the growth ofA. tamarensewas suppressed when cocultured with either SP48 or the øZCW1-resistant mutant of SP48. This study provides the first evidence of the indirect impact of bacteriophage on bloom-forming microalgae via phage lysis of alga-killing bacteria.

scholarly journals Interactive effects of temperature and salinity on population dynamics of the calanoid copepod Acartia tonsa

2014 ◽  
Vol 37 (1) ◽  
pp. 197-210 ◽  
Author(s):  
Nadine Peck ◽  
Janna Peters ◽  
Rabea Diekmann ◽  
Silke Laakmann ◽  
Jasmin Renz
Keyword(s):  
Population Dynamics ◽  
Calanoid Copepod ◽  
Acartia Tonsa ◽  
Interactive Effects ◽  
Effects Of Temperature

POPULATION DYNAMICS OF THE CABBAGE APHID, BREVICORYNE BRASSICAE (HOMOPTERA: APHIDIDAE) AT VANCOUVER, BRITISH COLUMBIA: V. A SIMULATION MODEL

1984 ◽  
Vol 116 (6) ◽  
pp. 895-911 ◽  
Author(s):  
D. A. Raworth
Keyword(s):  
British Columbia ◽  
Population Dynamics ◽  
Major Change ◽  
Brevicoryne Brassicae ◽  
Diaeretiella Rapae ◽  
Simulated Population ◽  
Aphidoletes Aphidimyza ◽  
Functional Responses ◽  
Cabbage Aphid ◽  
Effects Of Temperature

AbstractA computer model was written to simulate the population dynamics of the cabbage aphid, Brevicoryne brassicae (L.), on the host Maris Kestrel kale, Brassica oleracea L., at Vancouver, British Columbia. The model incorporated the effects of temperature, morph determination, plant quality, predators, parasites, and leaf fall. Comparisons of simulated results with field observations indicated that although B. brassicae, Aphidoletes aphidimyza (Rond.), and Diaeretiella rapae (M'Intosh) were reasonably well understood, syrphid predation was not, and appropriate feed-back mechanisms which could prevent monotonic increase or decrease in the simulated population were lacking. A detailed study in which the population dynamics of the prey is accounted for in terms of the numerical and functional responses of syrphid predators is necessary to understand the population dynamics of B. brassicae on Maris Kestrel kale at Vancouver. Comparisons with other aphid systems suggest that a major change in one component of the system can be compensated for by changes in other components. An overview of the cabbage aphid system at Vancouver is given.

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