Particle aggregation during a diatom bloom. II. Biological aspects
نویسندگان
چکیده
منابع مشابه
Phytoplankton-Associated Bacterial Community Composition and Succession during Toxic Diatom Bloom and Non-Bloom Events
Pseudo-nitzschia blooms often occur in coastal and open ocean environments, sometimes leading to the production of the neurotoxin domoic acid that can cause severe negative impacts to higher trophic levels. Increasing evidence suggests a close relationship between phytoplankton bloom and bacterial assemblages, however, the microbial composition and succession during a bloom process is unknown. ...
متن کاملComputational Aspects of Aggregation in Biological Systems
Many biologically relevant dynamical systems are aggregable, in the sense that one can divide their microvariables x1, . . . , xn into several (k) nonintersecting groups and find functions y1, . . . , yk (k < n) from these groups (macrovariables) whose dynamics only depend on the initial state of the macrovariable. For example, the state of a population genetic system can be described by listin...
متن کاملPriority effects in a planktonic bloom-forming marine diatom
Priority effects occur when a species or genotype with earlier arrival has an advantage such that its relative abundance in the community or population is increased compared with later-arriving species. Few studies have dealt with this concept in the context of within-species competition. Skeletonema marinoi is a marine diatom that shows a high degree of genetic differentiation between populati...
متن کاملDynamics of bacterial community composition and activity during a mesocosm diatom bloom.
Bacterial community composition, enzymatic activities, and carbon dynamics were examined during diatom blooms in four 200-liter laboratory seawater mesocosms. The objective was to determine whether the dramatic shifts in growth rates and ectoenzyme activities, which are commonly observed during the course of phytoplankton blooms and their subsequent demise, could result from shifts in bacterial...
متن کاملBacterial DMSP metabolism during the senescence of the spring diatom bloom in the Northwest Atlantic
The impact of the decline of the vernal bloom on the bacterial metabolism of dimethylsulfoniopropionate (DMSP), the precursor of dimethylsulfide (DMS), was investigated during a 7 d Lagrangian study conducted in the Northwest Atlantic in spring 2003. Daily variations in bacterial leucine incorporation, dissolved DMSP (DMSPd) uptake and DMS production rates were measured in the surface mixed lay...
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ژورنال
عنوان ژورنال: Marine Ecology Progress Series
سال: 1991
ISSN: 0171-8630,1616-1599
DOI: 10.3354/meps069281